Coating implements with material supply – Including tool with blade-like – pad-like – or apertured... – With flow-regulator
Patent
1994-05-18
1996-10-08
Bratlie, Steven A.
Coating implements with material supply
Including tool with blade-like, pad-like, or apertured...
With flow-regulator
401262, B05C 1700
Patent
active
055623565
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a container for a substance that is liquid, viscous, or semi-liquid, the container being provided with an applicator having an elastically deformable tongue enabling a layer of the substance to be spread on any surface.
The invention is particularly intended for applying a depilatory wax to the skin, but it may also be used for applying a layer of glue or any other substance that is liquid, viscous, or semi-liquid at ambient temperature or at a temperature slightly above ambient temperature.
A container is known (e.g. from patent GB 451 015) having a closure cap that includes a rubber tongue which is normally pressed against an edge of the container to close it and which can be separated therefrom by bending in order to enable the substance contained in the container to escape, thereby simultaneously forming means for spreading the substance.
Nevertheless, with that known device it is difficult to control accurately the quantity of substance that leaves the container, since the dimensions of the outlet orifice depend on how much the tongue bends, so they can vary rather widely.
The invention serves in particular to avoid that drawback.
The invention thus provides a container for a substance that is liquid, viscous, or semi-liquid, the container being provided with an applicator comprising an elastically deformable tongue having a free end designed to be applied against a surface on which the substance is to be deposited for the purpose of spreading the substance on said surface, the container being characterized in that said tongue is disposed inside an outlet slot for the substance and is displaceable by elastic deformation from a rest position in which it closes said slot to a working position in which it opens a portion of said slot and enables the substance to escape, said rest and working positions of the tongue both being defined positively by the tongue bearing against fixed abutments.
This type of applicator is advantageous in that it automatically closes the outlet slot for the substance when it is at rest. Applying the tongue against a surface causes the tongue to deform elastically, thereby opening the outlet slot for the substance in controlled manner. The outlet section for the substance is thus determined accurately, thereby making it possible to deposit and spread a layer of substance having predetermined thickness over a surface. In addition, it suffices to move the applicator away from the surface on which the substance is being deposited to cause the tongue to return automatically to its rest position where it closes the outlet slot for the substance.
According to another characteristic of the invention, the abutments are the edges of the outlet slot for the substance.
The slot may be of greater or lesser width and length as a function of the type of substance to be spread.
In a first embodiment of the invention, the tongue is integrally molded with the container and it extends from the edge of an open end of the container inside a cap mounted on said open end of the container, and having the outlet slot for the substance, with the end of the tongue going through the slot.
In this case, the container and its applicator are constituted by two molded parts, which are merely engaged one in the other.
In another embodiment of the invention, the tongue is integrally molded with a closure piece for the open end of the container, and when in its rest position it presses against an edge of said opening, and when in its working position it presses against a fixed abutment of said closure piece.
In this case also, the container and its applicator are constituted by two molded parts, which are engaged one in the other.
In a variant, said closure piece may comprise two elastically deformable tongues of the above-specified type which are connected to each other in a V-shape or a W-shape, and two abutments defining the working positions of the two tongues.
In addition, the closure piece comprises a fixed central portion whose two opposite ends are provided with projections enga
REFERENCES:
patent: 378744 (1888-02-01), Underwood
patent: 403566 (1889-05-01), Underwood
patent: 551524 (1895-12-01), Bouton
patent: 567704 (1896-09-01), Clark
patent: 651420 (1900-06-01), Haglock
patent: 1735073 (1929-11-01), Carpenter
patent: 2102749 (1937-12-01), Salvesen
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