Device For Packaging And Delivering A Liquid Product

Abstract

The invention concerns a device for packaging and delivering a liquid product, comprising a container deformable by pressure applied on its side walls, wherein said liquid to be delivered is stored, said container being closed by a head for dispensing the liquid product which is traversed by an outlet for the liquid product. The device also comprises a liquid drawing tube whereof one end is fixed proximate the outlet for the liquid, the tube being of such length that its other end is proximate the base of the container. The wall of the container comprises cavities partly delimiting the outline of the dispensing head. The invention is characterized in that at least one passage is provided proximate the dispensing head to ensure an air intake into the container after the liquid is dispensed, so as to allow the container to recover its initial shape by replacing by volume the dose of liquid delivered.

1 . A device for packaging and dispensing a liquid product comprising a container deformable by compression on its side walls, wherein said liquid to be dispensed is stored, said container being closed by a dispensing head through which a product outlet is provided, said device also comprising a feeder tube one end of which is attached close to the product outlet, the tube length being such that its other end is close to the container bottom to draw the liquid, said device being such that container wall includes cavities which partially mark the contour of the dispensing head and that at least one passage is provided close to the dispensing head to provide an air inlet into the container when the liquid is dispensed, characterized in that several air inlet passages are arranged in the dispensing head and uniformly distributed around the end of the feeder tube, in order to increase the rate of the air coming into the container and thus to accelerate the recovery of its initial shape by the container.  
   
   
       2 . A device according to  claim 1  characterized in that said cavities radially extend at least partially on the periphery, under the dispensing head level.  
   
   
       3 . A device according to  claim 1  characterized in that the container includes at least two communicating chambers connected by two deformable zones such that they make it possible to press the chambers close to one another by pressing on their outer wall, a channel being provided between the two chambers and forming a passage for the liquid contained in the container.  
   
   
       4 . A device according to  claim 3  characterized in that said deformable zones have grooves arranged in an axial direction between two chambers so as to facilitate the deformation of the chambers side walls.  
   
   
       5 . A device according to  claim 1  characterized in that the container includes an opening for filling the liquid to be dispensed and in that said dispensing head has a closure for closing the filling opening.  
   
   
       6 . A device according to  claim 7  characterized in that said closure includes a collar to be fixed on the container opening, said collar having said liquid outlet and a hinged top closure for closing said hole and hinged to the collar.  
   
   
       7 . A device according to  claim 8  characterized in that the collar includes a seating for accommodating the end of said feeder tube, at least one air passage going through said seating.  
   
   
       8 . A device according to  claim 1  characterized in that said head is built integral with said containers.  
   
   
       9 . A device according to  claim 2  characterized in that the container includes at least two communicating chambers connected by two deformable zones such that they make it possible to press the chambers close to one another by pressing on their outer wall, a channel being provided between the two chambers and forming a passage for the liquid contained in the container.