Dispensing spout

Abstract

This invention relates to a spout for a hose, nozzle or a container and to a hose, nozzle and a container used to dispense liquids into a receptacle from a liquid source such as a gas container, delivery hose or pump. In each case, there is a spout means having a delivery trunk body formed with a dispensing passageway leading to a dispensing opening for delivery of the liquid; a venturi means within the delivery trunk to reduce the pressure within the dispensing passageway as liquid flows through it during use; a control means; said control means having a deactivation means, said deactivation means including an air conduit with an air opening, the air conduit being in communication with the dispensing passageway to permit the drawing of air into the dispensing passageway through the air opening when pressure is reduced by the venturi means, but inhibiting the flow of air into the dispensing passageway when the air opening is blocked or covered as the liquid level of dispensed liquid reaches the air opening and cuts off access of air into the air opening; a deactivation means to shut off the dispensing opening when the air opening is closed to inhibit air from entering during use.

1 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing having a dispensing passageway therewithin leading to a dispensing opening for delivery of the liquid;    a venturi means within the casing to reduce the pressure within the dispensing passageway as liquid flows through the dispensing passageway during use;    a control means;    said control means having a valve means for closing and opening the dispensing opening;    said control means having a deactivation means, said deactivation means including an air conduit with an air opening, the air conduit being in communication with the dispensing passageway to permit the drawing of air into the dispensing passageway through the air opening from outside of the casing when pressure is reduced by the venturi means but inhibiting the flow of air into the dispensing passageway when the liquid level of dispensed liquid reaches the air opening and blocks access of air into the air opening and prevents access of air into the air opening to cause the deactivation means to cause the valve means to close the dispensing opening and prevent delivery of the liquid from the dispensing opening during use.    
   
   
       2 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing formed with a dispensing passageway leading to a dispensing opening for delivery of the liquid along the axis of the direction of flow a venturi means within the casing to reduce the pressure within the dispensing passageway as liquid flows through dispensing passageway during use;    a control means;    said control means having a valve means for closing and opening the dispensing opening;    said control means having a deactivation means, said deactivation means including an air conduit with an air opening, the air conduit being in communication with the dispensing passageway to permit the drawing of air into the dispensing passageway through the air opening when pressure is reduced by the venturi means, but inhibiting the flow of air into the dispensing passageway when the air opening is blocked;    the deactivation means being operatively connected to the valve means to cause the valve means to move along the axis of the direction of liquid flow by a decreasing of the pressure within the casing to cause the valve means to close when the air opening is blocked during use and prevents access of air into the air opening.    
   
   
       3 . A dispensing spout as claimed in  claim 1  wherein the control means further comprises 
 an activation means for causing the valve means to open and close the dispensing opening; said activation means having an engaging means which, in use, can be activated by engageably mounting the engaging means of the dispensing spout to a liquid receptacle at its receiving receptacle opening to cause the valve means to open to permit liquid delivery through the dispensing passageway    the engaging means causing the valve means to close the dispensing opening to inhibit liquid from pouring from the dispensing spout in response to the disengagement of the engaging means by removing the dispensing spout away from the receiving receptacle opening of the liquid receptacle.    
   
   
       4 . A dispensing spout as claimed in  claim 1  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move to cause the deactivation means to cause the valve means to close the dispensing open in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use.    
   
   
       5 . A dispensing spout as claimed in  claim 2  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move to cause the deactivation means to cause the valve means to close the dispensing open in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use.    
   
   
       6 . A dispensing spout as claimed in  claim 3  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move to cause the deactivation means to cause the valve means to close the dispensing open in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use.    
   
   
       7 . A dispensing spout as claimed in  claim 1  wherein: the deactivation means includes a pressure responsive means responsive to a decrease in pressure within the dispensing passageway, during use, upon the air opening being blocked to cause the deactivation means to cause the valve means to close the dispensing opening.  
   
   
       8 . A dispensing spout as claimed in  claim 2  wherein: the deactivation means includes a pressure responsive means responsive to a decrease in pressure within the dispensing passageway, during use, upon the air opening being blocked to cause the deactivation means to cause the valve means to close the dispensing opening.  
   
   
       9 . A dispensing spout as claimed in  claim 3  wherein: the deactivation means includes a pressure responsive means responsive to a decrease in pressure within the dispensing passageway, during use, upon the air opening being blocked to cause the deactivation means to cause the valve means to close the dispensing opening.  
   
   
       10 . A dispensing spout as claimed in  claim 1  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will respond to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use to cause movement of the piston to thereby in turn cause the deactivation means to cause the valve means to close the dispensing opening;    there is an indicator means responsive and operatively connected to the piston means to indicate activation of the deactivation means.    
   
   
       11 . A dispensing spout as claimed in  claim 2  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will respond to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use to cause movement of the piston to thereby in turn cause the deactivation means to cause the valve means to close the dispensing opening;    there is an indicator means responsive and operatively connected to the piston means to indicate activation of the deactivation means.    
   
   
       12 . A dispensing spout as claimed in  claim 3  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will respond to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use to cause movement of the piston to thereby in turn cause the deactivation means to cause the valve means to close the dispensing opening;    there is an indicator means responsive and operatively connected to the piston means to indicate activation of the deactivation means.    
   
   
       13 . A dispensing spout as claimed in  claim 1  wherein: there is an indicator means operatively connected to and responsive to the use of the dispensing spout to indicate when the valve means is opened to allow liquid to flow through the dispensing opening and when the valve means is closed to prevent liquid from flowing through the dispensing opening.  
   
   
       14 . A dispensing spout as claimed in  claim 2  wherein: there is an indicator means operatively connected to and responsive to the use of the dispensing spout to indicate when the valve means is opened to allow liquid to flow through the dispensing opening and when the valve means is closed to prevent liquid from flowing through the dispensing opening.  
   
   
       15 . A dispensing spout as claimed in  claim 3  wherein: there is an indicator means operatively connected to and responsive to the use of the dispensing spout to indicate when the valve means is opened to allow liquid to flow through the dispensing opening and when the valve means is closed to prevent liquid from flowing through the dispensing opening.  
   
   
       16 . A dispensing spout as claimed in  claim 1  wherein there is a closure spring means provided to normally bias the valve means to close the dispensing opening during non-use.  
   
   
       17 . A dispensing spout as claimed in  claim 2  wherein there is a closure spring means provided to normally bias the valve means to close the dispensing opening during non-use.  
   
   
       18 . A dispensing spout as claimed in  claim 3  wherein there is a closure spring means provided to normally bias the valve means to close the dispensing opening during non-use.  
   
   
       19 . A dispensing spout as claimed in  claim 1  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked to in turn cause the valve means to close the dispensing opening;    there is an indicator means to indicate when liquid is flowing through the dispensing opening and a linkage means operatively connecting the piston means to the indicator means so that the indicator means responds to the piston means upon the deactivation means causing the valve means to close the dispensing opening.    
   
   
       20 . A dispensing spout as claimed in  claim 2  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked to in turn cause the valve means to close the dispensing opening;    there is an indicator means to indicate when liquid is flowing through the dispensing opening and a linkage means operatively connecting the piston means to the indicator means so that the indicator means responds to the piston means upon the deactivation means causing the valve means to close the dispensing opening.    
   
   
       21 . A dispensing spout as claimed in  claim 3  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked to in turn cause the valve means to close the dispensing opening;    there is an indicator means to indicate when liquid is flowing through the dispensing opening and a linkage means operatively connecting the piston means to the indicator means so that the indicator means responds to the piston means upon the deactivation means causing the valve means to close the dispensing opening.    
   
   
       22 . A dispensing spout as claimed in  claim 1  wherein; 
 the deactivation means includes a bellows means having a resiliently formed bellows member whereby the bellows member will respond to a decrease in pressure by overcoming the resilience of its usual shape upon the air opening being blocked by liquid during use, to move and in turn cause the valve means to close the dispensing opening;    the resiliently formed bellows member having a shape to which it is normally biased, in the absence of the air opening being blocked during use by rising liquid in a position whereby the air opening remains unblocked when the activation means is activated.    
   
   
       23 . A dispensing spout as claimed in  claim 2  wherein; 
 the deactivation means includes a bellows means having a resiliently formed bellows member whereby the bellows member will respond to a decrease in pressure by overcoming the resilience of its usual shape upon the air opening being blocked by liquid during use, to move and in turn cause the valve means to close the dispensing opening;    the resiliently formed bellows member having a shape to which it is normally biased, in the absence of the air opening being blocked during use by rising liquid in a position whereby the air opening remains unblocked when the activation means is activated.    
   
   
       24 . A dispensing spout as claimed in  claim 3  wherein; 
 the deactivation means includes a bellows means having a resiliently formed bellows member whereby the bellows member will respond to a decrease in pressure by overcoming the resilience of its usual shape upon the air opening being blocked by liquid during use, to move and in turn cause the valve means to close the dispensing opening;    the resiliently formed bellows member having a shape to which it is normally biased, in the absence of the air opening being blocked during use by rising liquid in a position whereby the air opening remains unblocked when the activation means is activated.    
   
   
       25 . A liquid container for storing and dispensing liquid, said container having a main body housing and a delivery means for delivering liquid, there being a dispensing spout mounted to the delivery means to be in fluid communication with the main body housing for delivering liquid from the container, wherein the dispensing spout comprises: 
 a casing having a dispensing passageway therewithin leading to a dispensing opening for delivery of the liquid;    a venturi means within the casing to reduce the pressure within the dispensing passageway as liquid flows through the dispensing passageway during use;    a control means;    said control means having a valve means for closing and opening the dispensing opening;    said control means having a deactivation means, said deactivation means including an air conduit with an air opening, the air conduit being in communication with the dispensing passageway to permit the drawing of air into the dispensing passageway through the air opening from outside of the casing when pressure is reduced by the venturi means but inhibiting the flow of air into the dispensing passageway when the liquid level of dispensed liquid reaches the air opening and blocks access of air into the air opening and prevents access of air into the air opening to cause the deactivation means to cause the valve means to close the dispensing opening and prevent delivery of the liquid from the dispensing opening during use.    
   
   
       26 . A liquid container for storing and dispensing liquid, said container having a main body housing and a delivery means for delivering liquid, there being a dispensing spout mounted to the delivery means to be in fluid communication with the main body housing for delivering liquid from the container, wherein the dispensing spout comprises: 
 a casing formed with a dispensing passageway leading to a dispensing opening for delivery of the liquid along the axis of the direction of flow    a venturi means within the casing to reduce the pressure within the dispensing passageway as liquid flows through dispensing passageway during use;    a control means;    said control means having a valve means for closing and opening the dispensing opening;    said control means having a deactivation means, said deactivation means including an air conduit with an air opening, the air conduit being in communication with the dispensing passageway to permit the drawing of air into the dispensing passageway through the air opening when pressure is reduced by the venturi means, but inhibiting the flow of air into the dispensing passageway when the air opening is blocked;    the deactivation means being operatively connected to the valve means to cause the valve means to move along the axis of the direction of liquid flow by a decreasing of the pressure within the casing to cause the valve means to close when the air opening is blocked during use and prevents access of air into the air opening.    
   
   
       27 . A liquid container as claimed in  claim 25  wherein the dispensing spout further comprises: 
 an activation means for causing the valve means to open and close the dispensing opening; said activation means having an engaging means which, in use, can be activated by engageably mounting the engaging means of the dispensing spout to a liquid receptacle at its receiving receptacle opening to cause the valve means to open to permit liquid delivery through the dispensing passageway    the engaging means causing the valve means to close the dispensing opening to inhibit liquid from pouring from the dispensing spout in response to the disengagement of the engaging means by removing the dispensing spout away from the receiving receptacle opening of the liquid receptacle.    
   
   
       28 . A liquid container as claimed in  claim 25  wherein: 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move to cause the valve means to close the dispensing open in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use.    
   
   
       29 . A liquid container as claimed in  claim 26  wherein: 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move to cause the valve means to close the dispensing open in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use.    
   
   
       30 . A liquid container as claimed in  claim 27  wherein: 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move to cause the valve means to close the dispensing open in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use.    
   
   
       31 . A liquid container as claimed in  claim 25  wherein: 
 the deactivation means includes a pressure responsive means responsive to a decrease in pressure within the dispensing passageway, during use, upon the air opening being blocked to cause the valve means to close the dispensing opening.    
   
   
       32 . A liquid container as claimed in  claim 26  wherein: 
 the deactivation means includes a pressure responsive means responsive to a decrease in pressure within the dispensing passageway, during use, upon the air opening being blocked to cause the valve means to close the dispensing opening.    
   
   
       33 . A liquid container as claimed in  claim 27  wherein: 
 the deactivation means includes a pressure responsive means responsive to a decrease in pressure within the dispensing passageway, during use, upon the air opening being blocked to cause the valve means to close the dispensing opening.    
   
   
       34 . A liquid container as claimed in  claim 25  wherein: 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will respond to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use to cause movement of the piston to thereby in turn cause the valve means to close the dispensing opening;    there is an indicator means responsive and operatively connected to the piston means to indicate activation of the deactivation means.    
   
   
       35 . A liquid container as claimed in  claim 26  wherein: 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will respond to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use to cause movement of the piston to thereby in turn cause the valve means to close the dispensing opening;    there is an indicator means responsive and operatively connected to the piston means to indicate activation of the deactivation means.    
   
   
       36 . A liquid container as claimed in  claim 27  wherein: 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will respond to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use to cause movement of the piston to thereby in turn cause the valve means to close the dispensing opening;    there is an indicator means responsive and operatively connected to the piston means to indicate activation of the deactivation means.    
   
   
       37 . A liquid container as claimed in  claim 25  wherein there is an indicator means operatively connected to and responsive to the use of the dispensing spout to indicate when liquid is flowing through the dispensing opening and when liquid is prevented form flowing through the dispensing opening.  
   
   
       38 . A liquid container as claimed in  claim 26  wherein there is an indicator means operatively connected to and responsive to the use of the dispensing spout to indicate when liquid is flowing through the dispensing opening and when liquid is prevented form flowing through the dispensing opening.  
   
   
       39 . A liquid container as claimed in  claim 27  wherein there is an indicator means operatively connected to and responsive to the use of the dispensing spout to indicate when liquid is flowing through the dispensing opening and when liquid is prevented form flowing through the dispensing opening.  
   
   
       40 . A liquid container as claimed in  claim 25  wherein: 
 there is a closure spring means provided to normally bias the valve means to close the dispensing opening during non-use.    
   
   
       41 . A liquid container as claimed in  claim 26  wherein: 
 there is a closure spring means provided to normally bias the valve means to close the dispensing opening during non-use.    
   
   
       42 . A liquid container as claimed in  claim 27  wherein: 
 there is a closure spring means provided to normally bias the valve means to close the dispensing opening during non-use.    
   
   
       43 . A liquid container as claimed in  claim 25  wherein: 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked to in turn cause the valve means to close the dispensing opening;    there is an indicator means to indicate when liquid is flowing through the dispensing opening and a linkage means operatively connecting the piston means to the indicator means so that the indicator means responds to the piston means upon the deactivation means causing the valve means to close the dispensing opening.    
   
   
       44 . A liquid container as claimed in  claim 26  wherein: 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked to in turn cause the valve means to close the dispensing opening;    there is an indicator means to indicate when liquid is flowing through the dispensing opening and a linkage means operatively connecting the piston means to the indicator means so that the indicator means responds to the piston means upon the deactivation means causing the valve means to close the dispensing opening.    
   
   
       45 . A liquid container as claimed in  claim 27  wherein: 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked to in turn cause the valve means to close the dispensing opening;    there is an indicator means to indicate when liquid is flowing through the dispensing opening and a linkage means operatively connecting the piston means to the indicator means so that the indicator means responds to the piston means upon the deactivation means causing the valve means to close the dispensing opening.    
   
   
       46 . A liquid container as claimed in  claim 25  wherein; 
 the deactivation means includes a bellows means having a resiliently formed bellows member whereby the bellows member will respond to a decrease in pressure by overcoming the resilience of its usual shape upon the air opening being blocked by liquid during use, to move and in turn cause the valve means to close the dispensing opening;    the resiliently formed bellows member having a shape to which it is normally biased, in the absence of the air opening being blocked during use by rising liquid in a position whereby the air opening remains unblocked when the activation means is activated.    
   
   
       47 . A liquid container as claimed in  claim 26  wherein; 
 the deactivation means includes a bellows means having a resiliently formed bellows member whereby the bellows member will respond to a decrease in pressure by overcoming the resilience of its usual shape upon the air opening being blocked by liquid during use, to move and in turn cause the valve means to close the dispensing opening;    the resiliently formed bellows member having a shape to which it is normally biased, in the absence of the air opening being blocked during use by rising liquid in a position whereby the air opening remains unblocked when the activation means is activated.    
   
   
       48 . A liquid container as claimed in  claim 27  wherein; 
 the deactivation means includes a bellows means having a resiliently formed bellows member whereby the bellows member will respond to a decrease in pressure by overcoming the resilience of its usual shape upon the air opening being blocked by liquid during use, to move and in turn cause the valve means to close the dispensing opening;    the resiliently formed bellows member having a shape to which it is normally biased, in the absence of the air opening being blocked during use by rising liquid in a position whereby the air opening remains unblocked when the activation means is activated.    
   
   
       49 . A delivery nozzle mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the delivery nozzle comprises: 
 a casing having a dispensing passageway therewithin leading to a dispensing opening for delivery of the liquid; 
 a venturi means within the casing to reduce the pressure within the dispensing passageway as liquid flows through the dispensing passageway during use;  
   a control means;    said control means having a valve means for closing and opening the dispensing opening;    said control means having a deactivation means, said deactivation means including an air conduit with an air opening, the air conduit being in communication with the dispensing passageway to permit the drawing of air into the dispensing passageway through the air opening from outside of the casing when pressure is reduced by the venturi means but inhibiting the flow of air into the dispensing passageway when the liquid level of dispensed liquid reaches the air opening and blocks access of air into the air opening and prevents access of air into the air opening to cause the deactivation means to cause the valve means to close the dispensing opening and prevent delivery of the liquid from the dispensing opening during use.    
   
   
       50 . A delivery nozzle mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the delivery nozzle comprises: 
 a casing formed with a dispensing passageway leading to a dispensing opening for delivery of the liquid along the axis of the direction of flow    a venturi means within the casing to reduce the pressure within the dispensing passageway as liquid flows through dispensing passageway during use;    a control means;    said control means having a valve means for closing and opening the dispensing opening;    said control means having a deactivation means, said deactivation means including an air conduit with an air opening, the air conduit being in communication with the dispensing passageway to permit the drawing of air into the dispensing passageway through the air opening when pressure is reduced by the venturi means, but inhibiting the flow of air into the dispensing passageway when the air opening is blocked;    the deactivation means being operatively connected to the valve means to cause the valve means to move along the axis of the direction of liquid flow by a decreasing of the pressure within the casing to cause the valve means to close when the air opening is blocked during use and prevents access of air into the air opening.    
   
   
       51 . A delivery nozzle as claimed in  claim 49  wherein the dispensing spout further comprises: 
 an activation means for causing the valve means to open and close the dispensing opening; said activation means having an engaging means which, in use, can be activated by engageably mounting the engaging means of the dispensing spout to a liquid receptacle at its receiving receptacle opening to cause the valve means to open to permit liquid delivery through the dispensing passageway    the engaging means causing the valve means to close the dispensing opening to inhibit liquid from pouring from the dispensing spout in response to the disengagement of the engaging means by removing the dispensing spout away from the receiving receptacle opening of the liquid receptacle.    
   
   
       52 . A delivery nozzle as claimed in  claim 49  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move to cause the valve means to close the dispensing open in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use.    
   
   
       53 . A delivery nozzle as claimed in  claim 50  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move to cause the valve means to close the dispensing open in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use.    
   
   
       54 . A delivery nozzle as claimed in  claim 51  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move to cause the valve means to close the dispensing open in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use.    
   
   
       55 . A delivery nozzle as claimed in  claim 49  wherein; 
 the deactivation means includes a pressure responsive means responsive to a decrease in pressure within the dispensing passageway, during use, upon the air opening being blocked to cause the valve means to close the dispensing opening.    
   
   
       56 . A delivery nozzle as claimed in  claim 50  wherein; 
 the deactivation means includes a pressure responsive means responsive to a decrease in pressure within the dispensing passageway, during use, upon the air opening being blocked to cause the valve means to close the dispensing opening.    
   
   
       57 . A delivery nozzle as claimed in  claim 51  wherein; 
 the deactivation means includes a pressure responsive means responsive to a decrease in pressure within the dispensing passageway, during use, upon the air opening being blocked to cause the valve means to close the dispensing opening.    
   
   
       58 . A delivery nozzle as claimed in  claim 49  wherein 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will respond to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use to cause movement of the piston to thereby in turn cause the valve means to close the dispensing opening;    there is an indicator means responsive and operatively connected to the piston means to indicate activation of the deactivation means.    
   
   
       59 . A delivery nozzle as claimed in  claim 50  wherein 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will respond to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use to cause movement of the piston to thereby in turn cause the valve means to close the dispensing opening;    there is an indicator means responsive and operatively connected to the piston means to indicate activation of the deactivation means.    
   
   
       60 . A delivery nozzle as claimed in  claim 51  wherein 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will respond to a decrease in pressure within the dispensing passageway upon the air opening being blocked during use to cause movement of the piston to thereby in turn cause the valve means to close the dispensing opening;    there is an indicator means responsive and operatively connected to the piston means to indicate activation of the deactivation means.    
   
   
       61 . A delivery nozzle as claimed in  claim 49  wherein there is an indicator means operatively connected to and responsive to the use of the dispensing spout to indicate when liquid is flowing through the dispensing opening and when liquid is prevented form flowing through the dispensing opening.  
   
   
       62 . A delivery nozzle as claimed in  claim 50  wherein there is an indicator means operatively connected to and responsive to the use of the dispensing spout to indicate when liquid is flowing through the dispensing opening and when liquid is prevented form flowing through the dispensing opening.  
   
   
       63 . A delivery nozzle as claimed in  claim 51  wherein there is an indicator means operatively connected to and responsive to the use of the dispensing spout to indicate when liquid is flowing through the dispensing opening and when liquid is prevented form flowing through the dispensing opening.  
   
   
       64 . A delivery nozzle as claimed in  claim 49  wherein; 
 there is a closure spring means provided to normally bias the valve means to close the dispensing opening during non-use.    
   
   
       65 . A delivery nozzle as claimed in  claim 50  wherein; 
 there is a closure spring means provided to normally bias the valve means to close the dispensing opening during non-use.    
   
   
       66 . A delivery nozzle as claimed in  claim 51  wherein; 
 there is a closure spring means provided to normally bias the valve means to close the dispensing opening during non-use.    
   
   
       67 . A delivery nozzle as claimed in  claim 49  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked to in turn cause the valve means to close the dispensing opening;    there is an indicator means to indicate when liquid is flowing through the dispensing opening and a linkage means operatively connecting the piston means to the indicator means so that the indicator means responds to the piston means upon the deactivation means causing the valve means to close the dispensing opening.    
   
   
       68 . A delivery nozzle as claimed in  claim 50  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked to in turn cause the valve means to close the dispensing opening;    there is an indicator means to indicate when liquid is flowing through the dispensing opening and a linkage means operatively connecting the piston means to the indicator means so that the indicator means responds to the piston means upon the deactivation means causing the valve means to close the dispensing opening.    
   
   
       69 . A delivery nozzle as claimed in  claim 51  wherein; 
 the deactivation means includes a piston means having a piston whereby the piston of the piston means will move in response to a decrease in pressure within the dispensing passageway upon the air opening being blocked to in turn cause the valve means to close the dispensing opening;    there is an indicator means to indicate when liquid is flowing through the dispensing opening and a linkage means operatively connecting the piston means to the indicator means so that the indicator means responds to the piston means upon the deactivation means causing the valve means to close the dispensing opening.    
   
   
       70 . A delivery nozzle claimed in  claim 49  wherein; 
 the deactivation means includes a bellows means having a resiliently formed bellows member whereby the bellows member will respond to a decrease in pressure by overcoming the resilience of its usual shape upon the air opening being blocked by liquid during use, to move and in turn cause the valve means to close the dispensing opening;    the resiliently formed bellows member having a shape to which it is normally biased, in the absence of the air opening being blocked during use by rising liquid in a position whereby the air opening remains unblocked when the activation means is activated.    
   
   
       71 . A delivery nozzle claimed in  claim 50  wherein; 
 the deactivation means includes a bellows means having a resiliently formed bellows member whereby the bellows member will respond to a decrease in pressure by overcoming the resilience of its usual shape upon the air opening being blocked by liquid during use, to move and in turn cause the valve means to close the dispensing opening;    the resiliently formed bellows member having a shape to which it is normally biased, in the absence of the air opening being blocked during use by rising liquid in a position whereby the air opening remains unblocked when the activation means is activated.    
   
   
       72 . A delivery nozzle claimed in  claim 51  wherein; 
 the deactivation means includes a bellows means having a resiliently formed bellows member whereby the bellows member will respond to a decrease in pressure by overcoming the resilience of its usual shape upon the air opening being blocked by liquid during use, to move and in turn cause the valve means to close the dispensing opening;    the resiliently formed bellows member having a shape to which it is normally biased, in the absence of the air opening being blocked during use by rising liquid in a position whereby the air opening remains unblocked when the activation means is activated.    
   
   
       73 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing having an inlet and a dispensing outlet;    an openable and closable valve means for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    receptacle engaging trigger means operatively mounted on said casing and movable along said casing between a valve-open position and a valve-closed position;    linkage means operatively connecting said receptacle engaging trigger means and said valve means;    wherein said linkage means has an enabled configuration wherein said receptacle engaging trigger means and said valve means are operatively connected such that movement of said receptacle engaging trigger means from said valve-closed position to said valve-open position causes said valve means to open, and a disabled configuration wherein said valve means is closed, and said valve means is precluded from being re-opened by movement of said receptacle engaging trigger means until said linkage means is reset to its enabled configuration; and,    deactivation means for changing said linkage means from said enabled configuration to said disabled configuration, in response to detecting the proximity of dispensed liquid in a receptacle, to thereby allow said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       74 . The dispensing spout of  claim 1 , wherein said linkage means comprises a first linkage member and a second linkage member connected together in angularly variable relation at a linkage elbow, so as together to be movable between said enabled configuration and said disabled configuration.  
   
   
       75 . The dispensing spout of  claim 74 , wherein said first linkage member and said second linkage member connected together in pivotal relation at said linkage elbow.  
   
   
       76 . The dispensing spout of  claim 73 , further comprising a slider assembly mounted in sliding relation on said casing.  
   
   
       77 . The dispensing spout of  claim 76 , wherein said receptacle engaging trigger means comprises a trigger assembly disposed in sliding relation on said slider assembly.  
   
   
       78 . The dispensing spout of  claim 77 , wherein said first linkage member is operatively mounted on said receptacle engaging trigger means and said second linkage member is operatively mounted on said slider assembly.  
   
   
       79 . The dispensing spout of  claim 78 , wherein said receptacle engaging trigger means includes an upper hook and a lower hook for engaging the inlet rim of a container.  
   
   
       80 . The dispensing spout of  claim 74 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration.  
   
   
       81 . The dispensing spout of  claim 80 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration by means of a reed spring connected to said first linkage member.  
   
   
       82 . The dispensing spout of  claim 76 , wherein said deactivation means includes a venturi means.  
   
   
       83 . The dispensing spout of  claim 82 , wherein said venturi means is disposed within said casing.  
   
   
       84 . The dispensing spout of  claim 83 , wherein said deactivation means comprises an air conduit having an air inlet, said air conduit being in fluid communication with said dispensing passageway to permit the drawing of air into said dispensing passageway through said air opening when the air pressure is reduced by the venturi means, but inhibiting the flow of air into the dispensing passageway when the liquid level of dispensed liquid reaches the air opening and blocks access of air into said air opening, to thereby cause the deactivation means to change the linkage means to said disabled configuration, to thereby cause said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing, as aforesaid.  
   
   
       85 . The dispensing spout of  claim 84 , wherein said air conduit is in fluid communication with said dispensing passageway via an air hole in said slider assembly and an expandable and retractable chamber between said air conduit and said air hole.  
   
   
       86 . The dispensing spout of  claim 85 , wherein said expandable and retractable chamber comprises a cylinder and piston moveable within the cylinder, and wherein said piston engages the cylinder in substantially sealed relation, and spring means to bias said piston to an extended position.  
   
   
       87 . The dispensing spout of  claim 73 , wherein said valve means comprises a closure member for closing and opening said dispensing opening.  
   
   
       88 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing formed with a dispensing passageway leading to a dispensing opening for delivery of the liquid;    an openable and closable valve means operatively mounted on said casing for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    deactivation means operatively mounted on said casing for causing said valve means to close and prevent delivery of the liquid from the dispensing opening during use, when the liquid level of dispensed liquid reaches said deactivation means.    deactivation means for causing said valve means to close, in response to detecting the proximity of dispensed liquid in a receptacle, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       89 . The dispensing spout of  claim 88 , wherein said valve means comprises a closure means operatively mounted within said casing for closing and opening said dispensing opening.  
   
   
       90 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing having an inlet and a dispensing outlet;    an openable and closable valve means for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    receptacle engaging trigger means operatively mounted on said casing and movable along said casing between a valve-open position and a valve-closed position;    linkage means operatively connecting said receptacle engaging trigger means and said valve means;    wherein said linkage means has an enabled configuration wherein said receptacle engaging trigger means and said valve means are operatively connected such that movement of said receptacle engaging trigger means from said valve-closed position to said valve-open position causes said valve means to open, and a disabled configuration wherein said valve means is closed, and said valve means is precluded from being re-opened by movement of said receptacle engaging trigger means until said linkage means is reset to its enabled configuration; and,    deactivation means for changing said linkage means from said enabled configuration to said disabled configuration, in response to detecting the proximity of dispensed liquid in a receptacle, to thereby allow said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       91 . The dispensing spout of  claim 90 , wherein said linkage means comprises a first linkage member and a second linkage member connected together in angularly variable relation at a linkage elbow, so as together to be movable between said enabled configuration and said disabled configuration.  
   
   
       92 . The dispensing spout of  claim 91 , wherein said first linkage member and said second linkage member connected together in pivotal relation at said linkage elbow.  
   
   
       93 . The dispensing spout of  claim 90 , further comprising a slider assembly mounted in sliding relation on said casing.  
   
   
       94 . The dispensing spout of  claim 93 , wherein said receptacle engaging trigger means comprises a trigger assembly disposed in sliding relation on said slider assembly.  
   
   
       95 . The dispensing spout of  claim 94 , wherein said first linkage member is operatively mounted on said receptacle engaging trigger means and said second linkage member is operatively mounted on said slider assembly.  
   
   
       96 . The dispensing spout of  claim 95 , wherein said receptacle engaging trigger means includes an upper hook and a lower hook for engaging the inlet rim of a container.  
   
   
       97 . The dispensing spout of  claim 91 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration.  
   
   
       98 . The dispensing spout of  claim 97 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration by means of a reed spring connected to said first linkage member.  
   
   
       99 . The dispensing spout of  claim 93 , wherein said deactivation means includes a venturi means.  
   
   
       100 . The dispensing spout of  claim 99 , wherein said venturi means is disposed within said casing.  
   
   
       101 . The dispensing spout of  claim 100 , wherein said deactivation means comprises an air conduit having an air inlet, said air conduit being in fluid communication with said dispensing passageway to permit the drawing of air into said dispensing passageway through said air opening when the air pressure is reduced by the venturi means, but inhibiting the flow of air into the dispensing passageway when the liquid level of dispensed liquid reaches the air opening and blocks access of air into said air opening, to thereby cause the deactivation means to change the linkage means to said disabled configuration, to thereby cause said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing, as aforesaid.  
   
   
       102 . The dispensing spout of  claim 101 , wherein said air conduit is in fluid communication with said dispensing passageway via an air hole in said slider assembly and an expandable and retractable chamber between said air conduit and said air hole.  
   
   
       103 . The dispensing spout of  claim 102 , wherein said expandable and retractable chamber comprises a cylinder and piston moveable within the cylinder, and wherein said piston engages the cylinder in substantially sealed relation, and spring means to bias said piston to an extended position.  
   
   
       104 . The dispensing spout of  claim 90 , wherein said valve means comprises a closure member for closing and opening said dispensing opening.  
   
   
       105 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing formed with a dispensing passageway leading to a dispensing opening for delivery of the liquid;    an openable and closable valve means operatively mounted on said casing for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    deactivation means operatively mounted on said casing for causing said valve means to close and prevent delivery of the liquid from the dispensing opening during use, when the liquid level of dispensed liquid reaches said deactivation means.    deactivation means for causing said valve means to close, in response to detecting the proximity of dispensed liquid in a receptacle, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       106 . The dispensing spout of  claim 105 , wherein said valve means comprises a closure means operatively mounted within said casing for closing and opening said dispensing opening.  
   
   
       107 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing having an inlet and a dispensing outlet;    an openable and closable valve means for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    receptacle engaging trigger means operatively mounted on said casing and movable along said casing between a valve-open position and a valve-closed position;    linkage means operatively connecting said receptacle engaging trigger means and said valve means;    wherein said linkage means has an enabled configuration wherein said receptacle engaging trigger means and said valve means are operatively connected such that movement of said receptacle engaging trigger means from said valve-closed position to said valve-open position causes said valve means to open, and a disabled configuration wherein said valve means is closed, and said valve means is precluded from being re-opened by movement of said receptacle engaging trigger means until said linkage means is reset to its enabled configuration; and,    deactivation means for changing said linkage means from said enabled configuration to said disabled configuration, in response to detecting the proximity of dispensed liquid in a receptacle, to thereby allow said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       108 . The dispensing spout of  claim 107 , wherein said linkage means comprises a first linkage member and a second linkage member connected together in angularly variable relation at a linkage elbow, so as together to be movable between said enabled configuration and said disabled configuration.  
   
   
       109 . The dispensing spout of  claim 108 , wherein said first linkage member and said second linkage member connected together in pivotal relation at said linkage elbow.  
   
   
       110 . The dispensing spout of  claim 107 , further comprising a slider assembly mounted in sliding relation on said casing.  
   
   
       111 . The dispensing spout of  claim 110 , wherein said receptacle engaging trigger means comprises a trigger assembly disposed in sliding relation on said slider assembly.  
   
   
       112 . The dispensing spout of  claim 111 , wherein said first linkage member is operatively mounted on said receptacle engaging trigger means and said second linkage member is operatively mounted on said slider assembly.  
   
   
       113 . The dispensing spout of  claim 112 , wherein said receptacle engaging trigger means includes an upper hook and a lower hook for engaging the inlet rim of a container.  
   
   
       114 . The dispensing spout of  claim 108 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration.  
   
   
       115 . The dispensing spout of  claim 114 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration by means of a reed spring connected to said first linkage member.  
   
   
       116 . The dispensing spout of  claim 110 , wherein said deactivation means includes a venturi means.  
   
   
       117 . The dispensing spout of  claim 116 , wherein said venturi means is disposed within said casing.  
   
   
       118 . The dispensing spout of  claim 117 , wherein said deactivation means comprises an air conduit having an air inlet, said air conduit being in fluid communication with said dispensing passageway to permit the drawing of air into said dispensing passageway through said air opening when the air pressure is reduced by the venturi means, but inhibiting the flow of air into the dispensing passageway when the liquid level of dispensed liquid reaches the air opening and blocks access of air into said air opening, to thereby cause the deactivation means to change the linkage means to said disabled configuration, to thereby cause said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing, as aforesaid.  
   
   
       119 . The dispensing spout of  claim 118 , wherein said air conduit is in fluid communication with said dispensing passageway via an air hole in said slider assembly and an expandable and retractable chamber between said air conduit and said air hole.  
   
   
       120 . The dispensing spout of  claim 119 , wherein said expandable and retractable chamber comprises a cylinder and piston moveable within the cylinder, and wherein said piston engages the cylinder in substantially sealed relation, and spring means to bias said piston to an extended position.  
   
   
       121 . The dispensing spout of  claim 107 , wherein said valve means comprises a closure member for closing and opening said dispensing opening.  
   
   
       122 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing formed with a dispensing passageway leading to a dispensing opening for delivery of the liquid;    an openable and closable valve means operatively mounted on said casing for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    deactivation means operatively mounted on said casing for causing said valve means to close and prevent delivery of the liquid from the dispensing opening during use, when the liquid level of dispensed liquid reaches said deactivation means.    deactivation means for causing said valve means to close, in response to detecting the proximity of dispensed liquid in a receptacle, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       123 . The dispensing spout of  claim 122 , wherein said valve means comprises a closure means operatively mounted within said casing for closing and opening said dispensing opening.  
   
   
       124 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing having an inlet and a dispensing outlet; and,    indication means mounted on said casing.    
   
   
       125 . The dispensing spout of  claim 124 , further comprising a receptacle engaging trigger means operatively mounted on said casing and movable along said casing between a valve-open position and a valve-closed position.  
   
   
       126 . The dispensing spout of  claim 125 , further comprising linkage means operatively connecting said receptacle engaging trigger means and said valve means.  
   
   
       127 . The dispensing spout of  claim 126 , further comprising wherein said linkage means has an enabled configuration wherein said receptacle engaging trigger means and said valve means are operatively connected such that movement of said receptacle engaging trigger means from said valve-closed position to said valve-open position causes said valve means to open, and a disabled configuration wherein said valve means is closed, and said valve means is precluded from being re-opened by movement of said receptacle engaging trigger means until said linkage means is reset to its enabled configuration; and, 
 deactivation means for changing said linkage means from said enabled configuration to said disabled configuration, in response to detecting the proximity of dispensed liquid in a receptacle, to thereby allow said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       128 . A liquid container for storing and dispensing liquid, said container having a main body housing and a delivery means for delivering liquid, there being a dispensing spout mounted to the delivery means to be in fluid communication with the main body housing for delivering liquid from the container, wherein the dispensing spout comprises: 
 a casing having an inlet and a dispensing outlet;    an openable and closable valve means for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    receptacle engaging trigger means operatively mounted on said casing and movable along said casing between a valve-open position and a valve-closed position;    linkage means operatively connecting said receptacle engaging trigger means and said valve means;    wherein said linkage means has an enabled configuration wherein said receptacle engaging trigger means and said valve means are operatively connected such that movement of said receptacle engaging trigger means from said valve-closed position to said valve-open position causes said valve means to open, and a disabled configuration wherein said valve means is closed, and said valve means is precluded from being re-opened by movement of said receptacle engaging trigger means until said linkage means is reset to its enabled configuration; and,    deactivation means for changing said linkage means from said enabled configuration to said disabled configuration, in response to detecting the proximity of dispensed liquid in a receptacle, to thereby allow said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       129 . The liquid container of  claim 128 , wherein said linkage means comprises a first linkage member and a second linkage member connected together in angularly variable relation at a linkage elbow, so as together to be movable between said enabled configuration and said disabled configuration.  
   
   
       130 . The liquid container of  claim 129 , wherein said first linkage member and said second linkage member connected together in pivotal relation at said linkage elbow.  
   
   
       131 . The liquid container of  claim 128 , further comprising a slider assembly mounted in sliding relation on said casing.  
   
   
       132 . The liquid container of  claim 131 , wherein said receptacle engaging trigger means comprises a trigger assembly disposed in sliding relation on said slider assembly.  
   
   
       133 . The liquid container of  claim 132 , wherein said first linkage member is operatively mounted on said receptacle engaging trigger means and said second linkage member is operatively mounted on said slider assembly.  
   
   
       134 . The liquid container of  claim 133 , wherein said receptacle engaging trigger means includes an upper hook and a lower hook for engaging the inlet rim of a container.  
   
   
       135 . The liquid container of  claim 128 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration.  
   
   
       136 . The liquid container of  claim 135 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration by means of a reed spring connected to said first linkage member.  
   
   
       137 . The liquid container of  claim 131 , wherein said deactivation means includes a venturi means.  
   
   
       138 . The liquid container of  claim 137 , wherein said venturi means is disposed within said casing.  
   
   
       139 . The liquid container of  claim 138 , wherein said deactivation means comprises an air conduit having an air inlet, said air conduit being in fluid communication with said dispensing passageway to permit the drawing of air into said dispensing passageway through said air opening when the air pressure is reduced by the venturi means, but inhibiting the flow of air into the dispensing passageway when the liquid level of dispensed liquid reaches the air opening and blocks access of air into said air opening, to thereby cause the deactivation means to change the linkage means to said disabled configuration, to thereby cause said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing, as aforesaid.  
   
   
       140 . The liquid container of  claim 139 , wherein said air conduit is in fluid communication with said dispensing passageway via an air hole in said slider assembly and an expandable and retractable chamber between said air conduit and said air hole.  
   
   
       141 . The liquid container of  claim 140 , wherein said expandable and retractable chamber comprises a cylinder and piston moveable within the cylinder, and wherein said piston engages the cylinder in substantially sealed relation, and spring means to bias said piston to an extended position.  
   
   
       142 . The liquid container of  claim 128 , wherein said valve means comprises a closure member for closing and opening said dispensing opening.  
   
   
       143 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing formed with a dispensing passageway leading to a dispensing opening for delivery of the liquid;    an openable and closable valve means operatively mounted on said casing for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    deactivation means operatively mounted on said casing for causing said valve means to close and prevent delivery of the liquid from the dispensing opening during use, when the liquid level of dispensed liquid reaches said deactivation means.    deactivation means for causing said valve means to close, in response to detecting the proximity of dispensed liquid in a receptacle, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       144 . The liquid container of  claim 143 , wherein said valve means comprises a closure means operatively mounted within said casing for closing and opening said dispensing opening.  
   
   
       145 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing having an inlet and a dispensing outlet;    an openable and closable valve means for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    receptacle engaging trigger means operatively mounted on said casing and movable along said casing between a valve-open position and a valve-closed position;    linkage means operatively connecting said receptacle engaging trigger means and said valve means;    wherein said linkage means has an enabled configuration wherein said receptacle engaging trigger means and said valve means are operatively connected such that movement of said receptacle engaging trigger means from said valve-closed position to said valve-open position causes said valve means to open, and a disabled configuration wherein said valve means is closed, and said valve means is precluded from being re-opened by movement of said receptacle engaging trigger means until said linkage means is reset to its enabled configuration; and,    deactivation means for changing said linkage means from said enabled configuration to said disabled configuration, in response to detecting the proximity of dispensed liquid in a receptacle, to thereby allow said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       146 . The liquid container of  claim 145 , wherein said linkage means comprises a first linkage member and a second linkage member connected together in angularly variable relation at a linkage elbow, so as together to be movable between said enabled configuration and said disabled configuration.  
   
   
       147 . The liquid container of  claim 146 , wherein said first linkage member and said second linkage member connected together in pivotal relation at said linkage elbow.  
   
   
       148 . The liquid container of  claim 145 , further comprising a slider assembly mounted in sliding relation on said casing.  
   
   
       149 . The liquid container of  claim 148 , wherein said receptacle engaging trigger means comprises a trigger assembly disposed in sliding relation on said slider assembly.  
   
   
       150 . The liquid container of  claim 149 , wherein said first linkage member is operatively mounted on said receptacle engaging trigger means and said second linkage member is operatively mounted on said slider assembly.  
   
   
       151 . The liquid container of  claim 150 , wherein said receptacle engaging trigger means includes an upper hook and a lower hook for engaging the inlet rim of a container.  
   
   
       152 . The liquid container of  claim 146 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration.  
   
   
       153 . The liquid container of  claim 152 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration by means of a reed spring connected to said first linkage member.  
   
   
       154 . The liquid container of  claim 153 , wherein said deactivation means includes a venturi means.  
   
   
       155 . The liquid container of  claim 154 , wherein said venturi means is disposed within said casing.  
   
   
       156 . The liquid container of  claim 155 , wherein said deactivation means comprises an air conduit having an air inlet, said air conduit being in fluid communication with said dispensing passageway to permit the drawing of air into said dispensing passageway through said air opening when the air pressure is reduced by the venturi means, but inhibiting the flow of air into the dispensing passageway when the liquid level of dispensed liquid reaches the air opening and blocks access of air into said air opening, to thereby cause the deactivation means to change the linkage means to said disabled configuration, to thereby cause said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing, as aforesaid.  
   
   
       157 . The liquid container of  claim 156 , wherein said air conduit is in fluid communication with said dispensing passageway via an air hole in said slider assembly and an expandable and retractable chamber between said air conduit and said air hole.  
   
   
       158 . The liquid container of  claim 157 , wherein said expandable and retractable chamber comprises a cylinder and piston moveable within the cylinder, and wherein said piston engages the cylinder in substantially sealed relation, and spring means to bias said piston to an extended position.  
   
   
       159 . The liquid container of  claim 145 , wherein said valve means comprises a closure member for closing and opening said dispensing opening.  
   
   
       160 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing formed with a dispensing passageway leading to a dispensing opening for delivery of the liquid;    an openable and closable valve means operatively mounted on said casing for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    deactivation means operatively mounted on said casing for causing said valve means to close and prevent delivery of the liquid from the dispensing opening during use, when the liquid level of dispensed liquid reaches said deactivation means.    deactivation means for causing said valve means to close, in response to detecting the proximity of dispensed liquid in a receptacle, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       161 . The liquid container of  claim 160 , wherein said valve means comprises a closure means operatively mounted within said casing for closing and opening said dispensing opening.  
   
   
       162 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing having an inlet and a dispensing outlet;    an openable and closable valve means for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    receptacle engaging trigger means operatively mounted on said casing and movable along said casing between a valve-open position and a valve-closed position;    linkage means operatively connecting said receptacle engaging trigger means and said valve means;    wherein said linkage means has an enabled configuration wherein said receptacle engaging trigger means and said valve means are operatively connected such that movement of said receptacle engaging trigger means from said valve-closed position to said valve-open position causes said valve means to open, and a disabled configuration wherein said valve means is closed, and said valve means is precluded from being re-opened by movement of said receptacle engaging trigger means until said linkage means is reset to its enabled configuration; and,    deactivation means for changing said linkage means from said enabled configuration to said disabled configuration, in response to detecting the proximity of dispensed liquid in a receptacle, to thereby allow said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       163 . The liquid container of  claim 162 , wherein said linkage means comprises a first linkage member and a second linkage member connected together in angularly variable relation at a linkage elbow, so as together to be movable between said enabled configuration and said disabled configuration.  
   
   
       164 . The liquid container of  claim 163 , wherein said first linkage member and said second linkage member connected together in pivotal relation at said linkage elbow.  
   
   
       165 . The liquid container of  claim 162 , further comprising a slider assembly mounted in sliding relation on said casing.  
   
   
       166 . The liquid container of  claim 165 , wherein said receptacle engaging trigger means comprises a trigger assembly disposed in sliding relation on said slider assembly.  
   
   
       167 . The liquid container of  claim 166 , wherein said first linkage member is operatively mounted on said receptacle engaging trigger means and said second linkage member is operatively mounted on said slider assembly.  
   
   
       168 . The liquid container of  claim 167 , wherein said receptacle engaging trigger means includes an upper hook and a lower hook for engaging the inlet rim of a container.  
   
   
       169 . The liquid container of  claim 163 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration.  
   
   
       170 . The liquid container of  claim 169 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration by means of a reed spring connected to said first linkage member.  
   
   
       171 . The liquid container of  claim 165 , wherein said deactivation means includes a venturi means.  
   
   
       172 . The liquid container of  claim 171 , wherein said venturi means is disposed within said casing.  
   
   
       173 . The liquid container of  claim 172 , wherein said deactivation means comprises an air conduit having an air inlet, said air conduit being in fluid communication with said dispensing passageway to permit the drawing of air into said dispensing passageway through said air opening when the air pressure is reduced by the venturi means, but inhibiting the flow of air into the dispensing passageway when the liquid level of dispensed liquid reaches the air opening and blocks access of air into said air opening, to thereby cause the deactivation means to change the linkage means to said disabled configuration, to thereby cause said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing, as aforesaid.  
   
   
       174 . The liquid container of  claim 173 , wherein said air conduit is in fluid communication with said dispensing passageway via an air hole in said slider assembly and an expandable and retractable chamber between said air conduit and said air hole.  
   
   
       175 . The liquid container of  claim 174 , wherein said expandable and retractable chamber comprises a cylinder and piston moveable within the cylinder, and wherein said piston engages the cylinder in substantially sealed relation, and spring means to bias said piston to an extended position.  
   
   
       176 . The liquid container of  claim 162 , wherein said valve means comprises a closure member for closing and opening said dispensing opening.  
   
   
       177 . A delivery nozzle mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the delivery nozzle comprises: 
 a casing having an inlet and a dispensing outlet;    an openable and closable valve means for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    receptacle engaging trigger means operatively mounted on said casing and movable along said casing between a valve-open position and a valve-closed position;    linkage means operatively connecting said receptacle engaging trigger means and said valve means;    wherein said linkage means has an enabled configuration wherein said receptacle engaging trigger means and said valve means are operatively connected such that movement of said receptacle engaging trigger means from said valve-closed position to said valve-open position causes said valve means to open, and a disabled configuration wherein said valve means is closed, and said valve means is precluded from being re-opened by movement of said receptacle engaging trigger means until said linkage means is reset to its enabled configuration; and,    deactivation means for changing said linkage means from said enabled configuration to said disabled configuration, in response to detecting the proximity of dispensed liquid in a receptacle, to thereby allow said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       178 . The delivery nozzle of  claim 177 , wherein said linkage means comprises a first linkage member and a second linkage member connected together in angularly variable relation at a linkage elbow, so as together to be movable between said enabled configuration and said disabled configuration.  
   
   
       179 . The delivery nozzle of claim, wherein said first linkage member and said second linkage member connected together in pivotal relation at said linkage elbow.  
   
   
       180 . The delivery nozzle of  claim 73 , further comprising a slider assembly mounted in sliding relation on said casing.  
   
   
       181 . The delivery nozzle of  claim 76 , wherein said receptacle engaging trigger means comprises a trigger assembly disposed in sliding relation on said slider assembly.  
   
   
       182 . The delivery nozzle of  claim 77 , wherein said first linkage member is operatively mounted on said receptacle engaging trigger means and said second linkage member is operatively mounted on said slider assembly.  
   
   
       183 . The delivery nozzle of  claim 78 , wherein said receptacle engaging trigger means includes an upper hook and a lower hook for engaging the inlet rim of a container.  
   
   
       184 . The delivery nozzle of  claim 74 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration.  
   
   
       185 . The delivery nozzle of  claim 80 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration by means of a reed spring connected to said first linkage member.  
   
   
       186 . The delivery nozzle of  claim 76 , wherein said deactivation means includes a venturi means.  
   
   
       187 . The delivery nozzle of  claim 82 , wherein said venturi means is disposed within said casing.  
   
   
       188 . The delivery nozzle of  claim 83 , wherein said deactivation means comprises an air conduit having an air inlet, said air conduit being in fluid communication with said dispensing passageway to permit the drawing of air into said dispensing passageway through said air opening when the air pressure is reduced by the venturi means, but inhibiting the flow of air into the dispensing passageway when the liquid level of dispensed liquid reaches the air opening and blocks access of air into said air opening, to thereby cause the deactivation means to change the linkage means to said disabled configuration, to thereby cause said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing, as aforesaid.  
   
   
       189 . The delivery nozzle of  claim 84 , wherein said air conduit is in fluid communication with said dispensing passageway via an air hole in said slider assembly and an expandable and retractable chamber between said air conduit and said air hole.  
   
   
       190 . The delivery nozzle of  claim 85 , wherein said expandable and retractable chamber comprises a cylinder and piston moveable within the cylinder, and wherein said piston engages the cylinder in substantially sealed relation, and spring means to bias said piston to an extended position.  
   
   
       191 . The delivery nozzle of  claim 73 , wherein said valve means comprises a closure member for closing and opening said dispensing opening.  
   
   
       192 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing formed with a dispensing passageway leading to a dispensing opening for delivery of the liquid;    an openable and closable valve means operatively mounted on said casing for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    deactivation means operatively mounted on said casing for causing said valve means to close and prevent delivery of the liquid from the dispensing opening during use, when the liquid level of dispensed liquid reaches said deactivation means.    deactivation means for causing said valve means to close, in response to detecting the proximity of dispensed liquid in a receptacle, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       193 . The delivery nozzle of  claim 88 , wherein said valve means comprises a closure means operatively mounted within said casing for closing and opening said dispensing opening.  
   
   
       194 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing having an inlet and a dispensing outlet;    an openable and closable valve means for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    receptacle engaging trigger means operatively mounted on said casing and movable along said casing between a valve-open position and a valve-closed position;    linkage means operatively connecting said receptacle engaging trigger means and said valve means;    wherein said linkage means has an enabled configuration wherein said receptacle engaging trigger means and said valve means are operatively connected such that movement of said receptacle engaging trigger means from said valve-closed position to said valve-open position causes said valve means to open, and a disabled configuration wherein said valve means is closed, and said valve means is precluded from being re-opened by movement of said receptacle engaging trigger means until said linkage means is reset to its enabled configuration; and,    deactivation means for changing said linkage means from said enabled configuration to said disabled configuration, in response to detecting the proximity of dispensed liquid in a receptacle, to thereby allow said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       195 . The delivery nozzle of  claim 90 , wherein said linkage means comprises a first linkage member and a second linkage member connected together in angularly variable relation at a linkage elbow, so as together to be movable between said enabled configuration and said disabled configuration.  
   
   
       196 . The delivery nozzle of  claim 91 , wherein said first linkage member and said second linkage member connected together in pivotal relation at said linkage elbow.  
   
   
       197 . The delivery nozzle of  claim 90 , further comprising a slider assembly mounted in sliding relation on said casing.  
   
   
       198 . The delivery nozzle of  claim 93 , wherein said receptacle engaging trigger means comprises a trigger assembly disposed in sliding relation on said slider assembly.  
   
   
       199 . The delivery nozzle of  claim 94 , wherein said first linkage member is operatively mounted on said receptacle engaging trigger means and said second linkage member is operatively mounted on said slider assembly.  
   
   
       200 . The delivery nozzle of  claim 95 , wherein said receptacle engaging trigger means includes an upper hook and a lower hook for engaging the inlet rim of a container.  
   
   
       201 . The delivery nozzle of  claim 91 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration.  
   
   
       202 . The delivery nozzle of  claim 97 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration by means of a reed spring connected to said first linkage member.  
   
   
       203 . The delivery nozzle of  claim 93 , wherein said deactivation means includes a venturi means.  
   
   
       204 . The delivery nozzle of  claim 99 , wherein said venturi means is disposed within said casing.  
   
   
       205 . The delivery nozzle of  claim 100 , wherein said deactivation means comprises an air conduit having an air inlet, said air conduit being in fluid communication with said dispensing passageway to permit the drawing of air into said dispensing passageway through said air opening when the air pressure is reduced by the venturi means, but inhibiting the flow of air into the dispensing passageway when the liquid level of dispensed liquid reaches the air opening and blocks access of air into said air opening, to thereby cause the deactivation means to change the linkage means to said disabled configuration, to thereby cause said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing, as aforesaid.  
   
   
       206 . The delivery nozzle of  claim 101 , wherein said air conduit is in fluid communication with said dispensing passageway via an air hole in said slider assembly and an expandable and retractable chamber between said air conduit and said air hole.  
   
   
       207 . The delivery nozzle of  claim 102 , wherein said expandable and retractable chamber comprises a cylinder and piston moveable within the cylinder, and wherein said piston engages the cylinder in substantially sealed relation, and spring means to bias said piston to an extended position.  
   
   
       208 . The delivery nozzle of  claim 90 , wherein said valve means comprises a closure member for closing and opening said dispensing opening.  
   
   
       209 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing formed with a dispensing passageway leading to a dispensing opening for delivery of the liquid;    an openable and closable valve means operatively mounted on said casing for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    deactivation means operatively mounted on said casing for causing said valve means to close and prevent delivery of the liquid from the dispensing opening during use, when the liquid level of dispensed liquid reaches said deactivation means.    deactivation means for causing said valve means to close, in response to detecting the proximity of dispensed liquid in a receptacle, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       210 . The delivery nozzle of  claim 105 , wherein said valve means comprises a closure means operatively mounted within said casing for closing and opening said dispensing opening.  
   
   
       211 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing having an inlet and a dispensing outlet;    an openable and closable valve means for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    receptacle engaging trigger means operatively mounted on said casing and movable along said casing between a valve-open position and a valve-closed position;    linkage means operatively connecting said receptacle engaging trigger means and said valve means;    wherein said linkage means has an enabled configuration wherein said receptacle engaging trigger means and said valve means are operatively connected such that movement of said receptacle engaging trigger means from said valve-closed position to said valve-open position causes said valve means to open, and a disabled configuration wherein said valve means is closed, and said valve means is precluded from being re-opened by movement of said receptacle engaging trigger means until said linkage means is reset to its enabled configuration; and,    deactivation means for changing said linkage means from said enabled configuration to said disabled configuration, in response to detecting the proximity of dispensed liquid in a receptacle, to thereby allow said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       212 . The delivery nozzle of  claim 107 , wherein said linkage means comprises a first linkage member and a second linkage member connected together in angularly variable relation at a linkage elbow, so as together to be movable between said enabled configuration and said disabled configuration.  
   
   
       213 . The delivery nozzle of  claim 108 , wherein said first linkage member and said second linkage member connected together in pivotal relation at said linkage elbow.  
   
   
       214 . The delivery nozzle of  claim 107 , further comprising a slider assembly mounted in sliding relation on said casing.  
   
   
       215 . The delivery nozzle of  claim 110 , wherein said receptacle engaging trigger means comprises a trigger assembly disposed in sliding relation on said slider assembly.  
   
   
       216 . The delivery nozzle of  claim 111 , wherein said first linkage member is operatively mounted on said receptacle engaging trigger means and said second linkage member is operatively mounted on said slider assembly.  
   
   
       217 . The delivery nozzle of  claim 112 , wherein said receptacle engaging trigger means includes an upper hook and a lower hook for engaging the inlet rim of a container.  
   
   
       218 . The delivery nozzle of  claim 108 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration.  
   
   
       219 . The delivery nozzle of  claim 114 , wherein said first linkage member and said second linkage member are spring biased to said enabled configuration by means of a reed spring connected to said first linkage member.  
   
   
       220 . The delivery nozzle of  claim 110 , wherein said deactivation means includes a venturi means.  
   
   
       221 . The delivery nozzle of  claim 116 , wherein said venturi means is disposed within said casing.  
   
   
       222 . The delivery nozzle of  claim 117 , wherein said deactivation means comprises an air conduit having an air inlet, said air conduit being in fluid communication with said dispensing passageway to permit the drawing of air into said dispensing passageway through said air opening when the air pressure is reduced by the venturi means, but inhibiting the flow of air into the dispensing passageway when the liquid level of dispensed liquid reaches the air opening and blocks access of air into said air opening, to thereby cause the deactivation means to change the linkage means to said disabled configuration, to thereby cause said valve means to close, thus precluding the delivery of liquid from said dispensing outlet of said casing, as aforesaid.  
   
   
       223 . The delivery nozzle of  claim 118 , wherein said air conduit is in fluid communication with said dispensing passageway via an air hole in said slider assembly and an expandable and retractable chamber between said air conduit and said air hole.  
   
   
       224 . The delivery nozzle of  claim 119 , wherein said expandable and retractable chamber comprises a cylinder and piston moveable within the cylinder, and wherein said piston engages the cylinder in substantially sealed relation, and spring means to bias said piston to an extended position.  
   
   
       225 . The delivery nozzle of  claim 107 , wherein said valve means comprises a closure member for closing and opening said dispensing opening.  
   
   
       226 . A dispensing spout mountable to a liquid feeding means for delivering liquid from a liquid source, wherein the dispensing spout comprises: 
 a casing formed with a dispensing passageway leading to a dispensing opening for delivery of the liquid;    an openable and closable valve means operatively mounted on said casing for permitting and precluding, respectively, the dispensing of liquid from said dispensing outlet of said casing, wherein said valve means is biased closed;    deactivation means operatively mounted on said casing for causing said valve means to close and prevent delivery of the liquid from the dispensing opening during use, when the liquid level of dispensed liquid reaches said deactivation means.    deactivation means for causing said valve means to close, in response to detecting the proximity of dispensed liquid in a receptacle, thus precluding the delivery of liquid from said dispensing outlet of said casing.    
   
   
       227 . The delivery nozzle of  claim 122 , wherein said valve means comprises a closure means operatively mounted within said casing for closing and opening said dispensing opening.