Dispensing device

Abstract

The invention relates to a dispensing device for dispensing a preferably cosmetic liquid. Said dispensing device comprises an elastic or flexible pump section which can deform in a reversible manner in order to pump the liquid. The dispensing direction is preferably opposite to the direction of actuation. Several pump chambers are preferably arranged about a central outlet valve. Said dispensing device is preferably arranged on the base of an associated container. The outlet valve or the dispensing opening is preferably only opened during the first actuation. The liquid is distributed through a preferably hollow valve element, which also forms a nozzle.

1 . Dispensing device for dispensing a preferably cosmetic liquid, particularly from a preferably at least substantially oblong or cylindrical container,
 with an elastic or flexible pump section which borders a pump chamber for the liquid or is fluidly connected therewith,   with an inlet valve allocated to the pump chamber,   with an outlet valve allocated to the pump chamber,   
     wherein liquid can be pumped or conveyed by means of reversible deformation of the pump section and can be dispensed from the pump chamber via the outlet valve in a dispensing direction, particularly wherein liquid can be subsequently taken up, preferably sucked, into the pump chamber via the inlet valve as a result of preferably automatic elastic returning of the pump section, 
     wherein the dispensing device or the pump section can be actuated by pressing down the container to dispense the liquid. 
   
   
       2 . Dispensing device for dispensing a preferably cosmetic liquid, particularly from a preferably at least substantially oblong or cylindrical container, preferably as set forth in  claim 1 ,
 with an elastic or flexible pump section which borders a pump chamber for the liquid or is fluidly connected therewith,   with an inlet valve allocated to the pump chamber,   with an outlet valve allocated to the pump chamber,   
     wherein liquid can be pumped or conveyed by means of reversible deformation of the pump section and can be dispensed from the pump chamber via the outlet valve, particularly wherein liquid can be subsequently taken up, preferably sucked, into the pump chamber via the inlet valve as a result of preferably automatic elastic returning of the pump section, 
     wherein 
     the dispensing device has several elastic or flexible pump sections, each of which forms a pump chamber for the same liquid, and which are particularly connected or connectable in parallel to the container, and/or 
     the outlet valve is arranged at least substantially in the middle of the dispensing device and/or between the pump sections. 
   
   
       3 . Dispensing device for dispensing a preferably cosmetic liquid, particularly from a preferably at least substantially oblong or cylindrical container,
 with at least one elastic or flexible pump section which borders a pump chamber for the liquid or is fluidly connected therewith,   with an inlet valve allocated to the pump chamber,   with an outlet valve allocated to the pump chamber,   
     wherein liquid can be pumped or conveyed in a direction of actuation by means of reversible deformation of the pump section and can be dispensed from the pump chamber via the outlet valve in a dispensing direction, particularly wherein liquid can be subsequently taken up, preferably sucked, into the pump chamber via the inlet valve as a result of preferably automatic elastic returning of the pump section, 
     wherein 
     the dispensing direction runs at least substantially opposite to the direction of actuation and/or at least substantially parallel to and/or in the middle axis of the dispensing device and/or at least substantially parallel to and/or in the longitudinal axis of the container. 
   
   
       4 . Dispensing device for dispensing a preferably cosmetic liquid, particularly from a preferably at least substantially oblong or cylindrical container,
 with an elastic or flexible pump section which borders a pump chamber for the liquid or is fluidly connected therewith,   with an inlet valve allocated to the pump chamber,   with an outlet valve allocated to the pump chamber,   
     wherein liquid can be pumped or conveyed in a direction of actuation by means of reversible deformation of the pump section and can be dispensed from the pump chamber via the outlet valve as a result of an actuating element being movable in the direction of actuation wherein, after dispensing, liquid can be taken up, preferably sucked, into the pump chamber via the inlet valve as a result of preferably automatic elastic returning of the pump section in the return direction, 
     wherein 
     the dispensing device has at least one spring element which is arranged and embodied separately from the pump section and acts directly on the actuating element in the return direction in order to support or bring about the returning of the pump section. 
   
   
       5 . Dispensing device as set forth in  claim 4 , wherein the actuating part is formed by a surface bearing the dispensing device. 
   
   
       6 . Dispensing device as set forth in  claim 4 , wherein the dispensing device has several spring elements which are arranged along an edge of the dispensing device and/or around the pump section or several pump sections or a dispensing opening or the outlet valve. 
   
   
       7 . Dispensing device for dispensing a preferably cosmetic liquid, particularly from a preferably at least substantially oblong or cylindrical container, with a particularly elastic or flexible pump section which borders a pump chamber for the liquid or is fluidly connected therewith,
 with an inlet valve associated with the pump chamber,   with an outlet valve associated with the pump chamber which has a valve element that can be moved in order to open the outlet valve,   
     wherein liquid can be pumped or conveyed by means of actuation, particularly reversible deformation, of the pump section and can be dispensed from the pump chamber via the outlet valve in a dispensing direction, particularly wherein liquid can be subsequently taken up, preferably sucked, into the pump chamber via the inlet valve as a result of preferably automatic elastic returning of the pump section, 
     wherein 
     the valve element is designed to be hollow for the particularly direct dispensing of the liquid, particularly in the dispensing direction, and/or forms a dispensing opening or nozzle of the dispensing device for the liquid. 
   
   
       8 . Dispensing device as set forth in  claim 7 , wherein the valve element is designed to be substantially hollow and cylindrical. 
   
   
       9 . Dispensing device as set forth in  claim 7 , wherein the valve element can be opened automatically as a result of the prevailing pressure of the liquid, particularly as a result of elastic material deformation. 
   
   
       10 . Dispensing device for dispensing a preferably cosmetic liquid, particularly from a preferably at least substantially oblong or cylindrical container,
 with a particularly elastic or flexible pump section which delimits a pump chamber for the liquid or is fluidly connected therewith,   with an inlet valve allocated to the pump chamber,   with an outlet valve allocated to the pump chamber which has a valve element that can be moved in order to open the outlet valve,   
     wherein liquid can be pumped or conveyed by means of actuation, particularly reversible deformation, of the pump section and can be dispensed from the pump chamber via the outlet valve in a dispensing direction, 
     wherein 
     the valve element is elastically pretensioned opposite the dispensing direction into a closing position and can be moved in the dispensing direction in order to open the outlet valve. 
   
   
       11 . Dispensing device as set forth in  claim 7 , wherein the liquid is able to flow through the valve element when the outlet valve is open in the dispensing direction. 
   
   
       12 . Dispensing device for dispensing a preferably cosmetic liquid, particularly from a preferably at least substantially oblong or cylindrical container,
 with a particularly elastic or flexible pump section which delimits a pump chamber for the liquid or is fluidly connected therewith,   with an inlet valve allocated to the pump chamber,   with an outlet valve allocated to the pump chamber which has a valve element that can be moved in order to open the outlet valve,   
     wherein liquid can be pumped or conveyed by means of actuation, particularly reversible deformation, of the pump section and can be dispensed from the pump chamber via the outlet valve in a dispensing direction, particularly wherein liquid can be subsequently taken up, preferably sucked, into the pump chamber via the inlet valve as a result of preferably automatic elastic returning of the pump section, 
     wherein 
     the dispensing device or its outlet valve or dispensing opening or nozzle is first opened upon initial actuation. 
   
   
       13 . Dispensing device as set forth in  claim 12 , wherein the dispensing opening or nozzle is sealed by a thin wall which can be opened or destroyed by the pressure of the liquid upon actuation of the dispensing device. 
   
   
       14 . Dispensing device for dispensing a preferably cosmetic liquid,
 with a particularly elastic or flexible pump section which delimits a pump chamber for the liquid or is fluidly connected therewith,   with an inlet valve allocated to the pump chamber,   with an outlet valve allocated to the pump chamber,   
     wherein liquid can be pumped or conveyed by means of actuation, particularly reversible deformation, of the pump section and can be dispensed from the pump chamber via the outlet valve in a dispensing direction, particularly wherein liquid can be subsequently taken up, preferably sucked, into the pump chamber via the inlet valve as a result of preferably automatic elastic returning of the pump section, 
     wherein 
     the container can be changed out and that the dispensing device has an opening means in order to open the container when the dispensing device is connected with same and to establish a fluid connection to the inlet valve. 
   
   
       15 . Dispensing device as set forth in  claim 1 , wherein the outlet valve forms a dispensing opening or nozzle of the dispensing device for the liquid. 
   
   
       16 . Dispensing device as set forth in  claim 1 , wherein the pump sections are formed from a single piece of material, particularly from a pump part, and/or are injection-molded together. 
   
   
       17 . Dispensing device as set forth in  claim 1 , wherein the pump sections are connected to the same outlet valve. 
   
   
       18 . Dispensing device as set forth in  claim 1 , wherein the container has a collapsing bag or a movable piston for the liquid. 
   
   
       19 . Dispensing device as set forth in  claim 1 , wherein each pump section forms the allocated inlet valve and/or outlet valve. 
   
   
       20 . Dispensing device as set forth in  claim 1 , wherein each pump section is designed to be at least substantially arched, particularly dome-shaped or hemispherical, or has an area which is shaped in this manner.