FR2785256A1 - DISPENSING CONTAINER FOR LIQUID PRODUCTS AND FOR MORE OR LESS VISCOUS PRODUCTS, OF VARIOUS TYPES - Google Patents

Abstract

The invention concerns a container for dispensing liquid comprising a wall (1) defining a closed chamber (2) designed to receive said liquid (4), said wall (1) being provided with means for causing said liquid to flow. The invention is characterised in that said wall (1) is made up of an elastic material selected in the group of elastomers and said flow means comprise a plurality of micro-holes (3) located at a zone at least of the wall and which, when operative, are open by the thrusting action of the liquid produced by pressure exerted externally on said wall (1), thereby enabling the liquid to flow out and which, when inoperative, namely when no pressure is exerted on said wall (1) are tightly closed by the elastic quality of the material.

Description

The present invention relates to dispensing containers for liquid products and more or less viscous products of different types, for example for beauty products, such as perfumes or creams, or also for personal hygiene products, household products, for drinks. and others.

Until now in normal and special containers, for the above type of products, held in one hand, the opening of the container and its closing were generally carried out using a movement of the other hand on the corresponding cap.

With a view to simplifying use, we perceive the need to have a container which can distribute the content in the absence of a stopper.

This problem is solved by the present invention.

According to the invention, the container is an entirely hollow mono-material part, composed of a single part made of an elastic material included in the class of elastomers and thermoplastic elastomers.

This container comprises a first part of actual capacity and a second part having the capacity of opening for the flow of the contents and of closing, which is innate in the nature of said elastic material. This subdivision into two parts is made only to facilitate the description, since the container is a single piece.

The second part has a plurality of micro-holes capable of opening to allow the flow of the content by pressing the fingers of the user's hand on the container itself; more precisely the container under the effect of the pressure of the hand undergoes a deformation which allows the opening of the holes under the consequent thrust of the content at the outlet towards the outside.

When the pressure ceases, the container closes tightly with the elastic return of the material and returns to its initial rest position.

The opening of the micro-holes for the flow of the contents and their closing are due to the particular characteristic of the elasticity of the material used, activated respectively by the pressure of the hand and by the relaxation of the return (at stopped pressure) exerted on this material.

Only by way of example, without limitation, it is indicated as an elastic material for the purposes of the present invention, a thermoplastic elastomer known commercially under the trade mark SEBS KRATON G.

The filling of liquid products and those more or less viscous is carried out using needles allowing their injection inside the container and leaving in the elastic material, as traces, micro-holes which have the function of opening / closing the container, to ensure the flow of the contents.

According to the present invention, the entirely hollow mono-material container is pierced by needles which have the double function of: 1-injecting liquid or viscous products into the container, 2-creating micro-perforations.

The micro-holes must be at least two: one allows the injection of the liquid,
The other allows the evacuation of gases during filling.

This container has advantages over other conventional containers.

The container being produced in a single mono-material piece, it uses a relatively simple manufacturing technology and offers a complete and immediate use of the material in the recycling phase. In addition, taking into account the reduction in the material used, it allows a reduction at the source of the carving, therefore of the waste.

Furthermore, by simple manual pressure, with one hand on the container, its opening is easily obtained, which allows the desired distribution and dosage of the content.

Finally, the elementary simplicity of the container structure has a favorable effect on the cost, by reducing it considerably compared to that of conventional containers.

The container can be given any configuration suitable for the purpose, according to any known manufacturing process capable of transforming the material used.

By way of nonlimiting example, the present invention is more clearly illustrated in the appended drawings which show one of the possible forms: FIG. 1 represents a side view of the container in the rest position; Figure 2 shows a top view of the container; FIG. 3 represents a longitudinal section AA ′ of FIG. 2 and FIG. 4 represents a side view, in the phase of flow of the product by compression.

With reference to these drawings, the container made of an elastic material is, as can be seen in FIG. 1, a single piece of entirely hollow mono-material, in which there is a first part of capacity (1) and a second part d 'flow (2).

In the container filled with liquid or viscous product injected using needles with appropriate device (not indicated in the drawings) this part presents, thanks to the injection, a plurality of micro-holes (3) which, after this injection are immediately hermetically closed by elastic return of the material used.

These micro-holes are in fact originally designed by the perforations caused by the needles of the product injection device.

In the drawings, the micro-holes (3) are indicated simply by points drawn in exaggerated proportions, for reasons of clarity.

The dosing of the product (4) is carried out thanks to the opening of the micro-holes, (in figure 4 indicated with (3 '), which open under the thrust of the content (4), forced to exit towards t 'exterior by the deforming compression exerted by the fingers of the hand of the user (according to the arrows M and N), already engaged on the grip of the container.

Claims (4)

 CLAIMS 1-Container for flowing products, liquids and more or less viscous products, of different types, characterized in that it is an entirely hollow single-component part and single part of an elastic material included in the class of elastomers or thermoplastic elastomers ; and also characterized in that it comprises a first capacity part (1) and a second part (2) having the opening capacity for the flow of the content and closing, which is inherent in the nature of said material. 2-container according to claim 1 characterized in that the second part (2) has a plurality of micro-holes (3 ') capable of opening under the pressure of the fingers of the hand of the user and to allow the exit of the product contained; by ceasing this compression, the micro-holes (3) close hermetically by elastic return of the material and the container itself goes into the rest position. 3-container according to claim 1 and 2 characterized in that the micro-holes (3) exist on the part as traces left by needles which allow the injection of the product into the container. 4-container according to claims 1 to 4 characterized in that it can have any formal configuration appropriate to the purpose, through different processing techniques such as injection blow molding, extrusion blow molding and rotational molding which allow the production of hollow bodies.