System for securing a cover on a container

Abstract

The invention relates to a system for securing a cover on a container by providing a retaining mechanism having a projection that is received by corresponding apertures and/pr cavities in the cover and container, thus preventing the rotation of the cover with respect to the container. The cover can include a projection, such as a gas outlet, by which the retaining mechanism can be anchored to the cover. A sealing assembly can be received in the gas outlet, and include a projection extending outward from the gas outlet thus preventing the removal of the retaining member until the sealing assembly is removed. Preferably, the sealing assembly also closes a gas aperture in the cover when inserted into the gas outlet.

1 . A system for securing a cover on a container, the system comprising: 
 a container;    a cover constructed and arranged to create a seal with the container and a projection extending through said cover;    a retaining mechanism constructed and arranged to engage the cover and the container to selectively prevent the rotation of the cover with respect to the container;    wherein the retaining mechanism engages the projection to maintain the retaining mechanism engaged with the cover and the container.    
   
   
       2 . The system of  claim 1 , wherein the retaining mechanism includes a second projection and the container comprises a cavity and the cover includes an aperture for selectively receiving the second projection.  
   
   
       3 . The system of  claim 1 , further comprising 
 a fastener constructed and arranged to surround the perimeter of the cover, the fastener having a lip constructed and arranged to shield the seal, the fastener further having a fastening notch;    wherein the container comprises a fastening pin constructed and arranged to be selectively received by the fastening notch.    
   
   
       4 . The system of  claim 1 , wherein the cover comprises a gas aperture and a gas outlet, the gas outlet comprising: 
 a housing; and    a sealing assembly, wherein the sealing assembly comprises a plug constructed and arranged to selectively close the gas aperture.    
   
   
       5 . The system of  claim 4 , wherein the housing includes a retaining notch, and sealing assembly includes a retaining pin constructed and arranged to be selectively received by the retaining notch.  
   
   
       6 . The system of  claim 5 , wherein the retaining mechanism comprises a first leg for engaging the gas outlet, such that the retaining mechanism is prevented from being removed from the gas outlet when the retaining pin is received by the retaining notch.  
   
   
       7 . The system of  claim 4 , further comprising a bolt constructed and arranged-to maintain the sealing assembly in place with respect to the housing.  
   
   
       8 . The system of  claim 4 , wherein the sealing assembly further comprises a spring.  
   
   
       9 . The system of  claim 4 , wherein the sealing assembly is selectively rotatable within the housing.  
   
   
       10 . The system of  claim 5 , wherein the plug seals the cover when the retaining pin is received by the retaining notch.  
   
   
       11 . The system of  claim 5 , wherein the gas aperture is opened when the retaining pin is released from the retaining notch.  
   
   
       12 . The system of  claim 4 , further comprising a bolt constructed and arranged to maintain the sealing assembly in place with respect to the housing.  
   
   
       13 . The system of  claim 4 , wherein the housing includes a retaining notch, and sealing assembly includes a retaining pin constructed and arranged to be selectively received by the retaining notch.  
   
   
       14 . The system of  claim 5 , wherein the retaining mechanism comprises a first leg for engaging the gas outlet, such that the retaining mechanism is prevented from being removed from the gas outlet when the retaining pin is received by the retaining notch.  
   
   
       15 . The system of  claim 1 , wherein the first projection comprises: 
 a housing having a retaining notch;    a locking assembly comprising an insert constructed and arranged to be received within the housing, the insert having an insert pin constructed and arranged to be received in the retaining notch when the insert is received in the housing;    wherein the insert pin prevents the removal of the retaining mechanism from the first projection.    
   
   
       16 . The system of  claim 15 , wherein the first projection further comprises a rod, and wherein: 
 the insert comprises a groove;    the housing comprises a retaining aperture;    the rod is constructed and arranged to be inserted through the aperture and at least partially retained by the housing; and    the rod is further constructed and arranged to be at least partially received by the groove.    
   
   
       17 . The system of  claim 1 , wherein the first projection comprises: 
 a housing having a retaining aperture; and    a rod constructed and arranged to be inserted through the retaining aperture, such that a first portion of the rod is received by the housing and a second portion of the rod extends outward from the housing;    wherein the second portion prevents the retaining mechanism from being removed from the first projection.    
   
   
       18 . The system of  claim 1 , further comprising a sealing ring between the container and the cover.  
   
   
       19 . The system of  claim 1 , wherein the container comprises a flange, the flange and the cover each comprising an aperture for selectively receiving the projection.  
   
   
       20 . The system of  claim 1 , wherein the retaining mechanism further includes a panel constructed and arranged to cover the projection when the projection is received by the cover and the container.  
   
   
       21 . The system of  claim 1 , wherein the container comprises wheels.  
   
   
       22 . A system for securing a cover on a container, the system comprising: 
 a container;    a cover having a gas outlet having an open position for releasing pressure within the container and a closed position for preventing releasing pressure within the container, the cover constructed and arranged to engage the container;    a retaining mechanism constructed and arranged to be selectively removable only when the gas outlet is in the open position, wherein the retaining mechanism selectively prevents the cover from being removed from the container.    
   
   
       23 . A system for securing a cover on a container, the system comprising: 
 a container having a flange having a flange cavity;    a cover constructed and arranged to engage the flange, the cover having a cover aperture and a gas outlet;    a retaining mechanism having a first projection constructed and arranged to be inserted through the cover aperture and into the flange cavity, the retaining mechanism having a first leg constructed and arranged to engage the gas outlet;    the gas outlet comprising a sealing assembly constructed and arranged to be received in the gas outlet, the sealing assembly having a plug for selectively closing the gas aperture and a second projection extending outward from the gas outlet;    wherein the retaining mechanism is releasable when the sealing assembly is removed.    
   
   
       24 . A method of securing a cover onto a container; the method comprising: 
 positioning a cover on a container, 
 wherein the container includes a pin and a container aperture,  
 wherein the cover includes a gas outlet and a cover aperture;  
   placing a fastener on the cover, the fastener having a notch constructed and arranged to receive the pin;    positioning the fastener such that the pin is received by the notch;    rotating the fastener with respect to the container to a lock position;    providing a retainer having a retainer aperture and a retainer projection;    positioning the retainer on the cover such that the gas outlet projects through the retainer aperture and the first projection is inserted in the cover aperture and the container aperture;    locking the retainer in place to selectively prevent the removal of the retainer from the cover.    
   
   
       25 . The method of  claim 24 , wherein locking the retainer comprises inserting a locking assembly into the gas outlet, the locking assembly having one or more projections, wherein the gas outlet includes one or more notches for receiving the one or more projections, wherein the retainer cannot be removed without removing the locking assembly.  
   
   
       26 . The method of  claim 25 , wherein the locking assembly further comprises a plug for selectively preventing the release of pressure from within the container.