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.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] The present application is a continuation of pending International patent application PCT / FR2005 / 003302 filed on Dec. 29, 2005 which designates the United States and claims priority from French patent application 0502998 filed on Mar. 25, 2005, the content of which is incorporated herein by reference.FIELD OF THE INVENTION [0002] The present invention relates to a device for packaging and dispensing a liquid contained in a container. BACKGROUND OF THE INVENTION [0003] It more particularly, but not exclusively, concerns a bottle intended to contain a cosmetic or pharmaceutical product, having such a viscosity that the product can be delivered by pressing the bottle walls, and more particularly by compressing the bottle walls. [0004] Such liquid product dispensers are known, which comprise a bottle made of a material resilient enough to be able to recover its original shape after a deformation. [0005] The bottle has an opening through whi...

AI Technical Summary

Benefits of technology

[0011] It relates to the packaging and the delivery of a liquid product, comprising a container deformable by compression, or manual pressure, on its side walls, wherein said liquid to be dispensed is stored. The container is closed by a liquid product dispensing head through which a product outlet is provided. The device also comprises a liquid 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. According to the invention, the container wall is provided with cavities which partially mark the contour of the dispensing head so as to absorb the deformation stresses when the bottle wall is compressed, in order to prevent the dispensing head from being deformed. Besides, at least one air circulation passage is arranged close to the dispensing head so as to provide air inlet into the container after the liquid has been dispensed, so that the container can recover its original shape by replacing or making up the quantity of delivered liquid in volume.

[0013] When it is built so, the container can recover its initial shape more rapidly than the known bottles, and the dispensing head is not deformed.

[0015] The deformable zones advantageously have grooves which are arranged in an axial direction between two chambers so as to facilitate the deformation of the chambers side walls.

[0017] This makes it possible to increase the rate of the air coming into the container and thus to accelerate the recovery of its initial shape by the container.

[0018] Passages are preferably distributed uniformly around the feeder tube end, in order to facilitate a uniform distribution of the air coming into the container and thus make it possible for the container to recover its initial shape.

Problems solved by technology

But such devices have the following disadvantages:

When the bottle loses its shape because of a manual pressure on its side wall, the upper part of the bottle (which is located close to its opening) also loses its shape and the bottle hardly recovers its original shape;

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