Device for packaging and dispensing pasty products

Abstract

A device for packaging and dispensing pasty products, includes a rigid bottle (1) bearing a pump body (2) mounted on a ring (3) that is fixed in the neck of the rigid bottle (1), having a lower peripheral annular stop rib (8) that engages with a clip-fastening collar (12) borne by the pump body in order to fix the pump body (2) to the ring (3). This ring (3) is secured to the neck of a pouch (4) that has a deformable and flexible wall and contains the product to be dispensed, the pump body (2) bearing, above the clip-fastening collar (12), a seal (5) accommodated in an annular groove (6) in the pump body. At least the stop rib or the clip-fastening collar (8, 12) is provided with at least one vent hole (11).

Claims

1. Device for packaging and dispensing pasty products, comprising: a rigid bottle bearing a pump body mounted on a ring that is fixed in a neck of the rigid bottle, the ring at a lower end having a lower peripheral annular stop rib that engages with a clip-fastening collar borne by the pump body in order to fix the pump body to said ring, said ring also being secured at an upper end to a neck of a pouch that has a deformable and flexible wall and contains a product to be dispensed, the pump body bearing, above said clip-fastening collar, a seal accommodated in an annular groove in the pump body, wherein at least said lower peripheral annular stop rib or said clip-fastening collar is provided with at least one vent hole.

2. Device according to claim 1, wherein said at least one vent hole is arranged in said clip-fastening collar borne by a lower part of the pump body.

3. Device according to claim 1, wherein said at least one vent hole is a slot arranged in said lower peripheral annular stop rib or clip-fastening collar.

4. Device according to claim 1, wherein either one of said at least said lower peripheral annular stop rib or said clip-fastening collar has at least two vent holes, said at least two vent holes being distributed around a periphery of said lower peripheral annular stop rib or said clip fastening collar.

5. Device according to claim 1, wherein said seal is compressed against a cylindrical wall of said ring adjacent to said clip-fastening collar, in a mounted position.

6. Device according to claim 1, wherein said annular groove is formed by at least one lower rib butting against said lower peripheral annular stop rib, in a mounted position.

7. Device according to claim 1, wherein said device is airtight or airless.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention is described in more detail below with the aid of a figure showing a preferred embodiment of the invention.

(2) FIGS. 1 and 2 are thus views in vertical section of a device for packaging and dispensing pasty products according to the prior art.

(3) FIG. 3 is a view in vertical section of a device for packaging and dispensing pasty products according to the invention, with an associated detail view and in the mounting position.

(4) FIG. 4 is a view in vertical section of a device for packaging and dispensing pasty products according to the invention, with an associated detail view and in the mounted position.

(5) FIG. 5 is a perspective view of a pump body of a device for packaging and dispensing pasty products according to the invention.

DETAILED DESCRIPTION

(6) As shown in FIGS. 3 and 4, according to the invention, a device for packaging and dispensing pasty products comprises a rigid bottle 1 bearing a pump body 2 mounted on a ring 3 that is fixed in the neck of the rigid bottle 1, comprising a lower peripheral annular stop rib 8 that engages with a clip-fastening collar 12 borne by the pump body, and is secured to the neck of a pouch that has a flexible and deformable wall 4 and contains the product to be dispensed.

(7) The pump body 2 comprises a lower part that is introduced into and clip-fastened in the orifice of the ring 3 and bears an O-ring seal 5 accommodated in an annular groove 6 arranged in this lower part and formed by a lower rib 7 and an upper rib 7 that are borne by this lower part.

(8) At least the stop rib or the clip-fastening collar 8, 12 is provided with at least one vent hole 11.

(9) According to the embodiment shown, there are two vent holes 11 that are distributed around the periphery of the rib and are arranged in the clip-fastening collar 12 borne by the lower part of the pump body.

(10) As can be seen more clearly in FIG. 5, each vent hole 11 consists of a slot of calibrated size arranged in the clip-fastening collar 12.

(11) By virtue of the invention, when product introduced into the space between the ring 3 and the lower part of the body of the pump and, more specifically, above the stop rib 8 borne by the orifice of the ring 3, is trapped, during mounting, between this stop rib 8 and the lower rib 7 forming the groove 6 of the seal, as illustrated in FIG. 3, it can be evacuated into the pouch 4 through the vent holes 11 during the downward pressure of the lower rib 7 of the groove on this product, which is thus reintroduced into the pouch 4. At the end of mounting, the lower rib 7 of the groove 6 of the seal butts against the stop rib 8 borne by the orifice of the ring 3, by means of two surfaces of identical inclination which block flat surfaces against one another by abutment.

(12) It is thus possible to fill the pouch 4 and the central hollow shaft 9 of the pump body to the maximum with packaged product before the body of the pump is mounted, and thus to control the number of initial pumping operations when the device is used for the first time.