Coating implements with material supply – Including means to apply material-moving force – Including pressurized reservoir
Patent
1998-01-16
1999-10-19
Walczak, David J.
Coating implements with material supply
Including means to apply material-moving force
Including pressurized reservoir
401196, A46B 502
Patent
active
059676850
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to an assembly for applying a fluid or a solid product to a surface to be treated. The applicator assembly may especially be used in the field of cosmetics for applying a deodorant, in the pharmaceutical field for applying insect repellants, as well as in the fields of adhesives, paints or polishes.
More specifically, this applicator assembly is intended for applying a body deodorant.
2. Discussion of the Background
Document FR-A-2,713,060 in the name of the Applicant company describes an applicator assembly comprising a pressurized product container equipped with a dispensing valve and with an applicator member including a porous dome, fixed onto the container. This dome is held on by a support connected mechanically to a collar fixed onto the container. When this assembly is applied to the surface to be treated, the porous dome becomes soaked with product. However, the product soaked into the dome may cause the volume of the dome to alter, and especially cause this volume to reduce. This variation in volume may cause the dome to be held on the support less firmly. Thus, after the applicator has been in use for a certain time, the dome may detach from the support and fall off. The applicator can therefore no longer be used and it is not possible to replace the dome on the support.
SUMMARY OF THE INVENTION
The present invention therefore aims to overcome the abovementioned drawbacks.
The principal object of the invention is to propose an applicator assembly which avoids separation of the dome from the support. Its special object is to hold the dome on the support more firmly.
The present invention therefore provides a product-applicator assembly comprising a container for the product to be dispensed, and equipped with an outlet for the product; a product-applicator member in communication with the container, having an outer application surface and borne by a support fixed onto the product outlet of the container; characterized in that the support includes elastically deformable fixing means capable of keeping the applicator member fixed onto the support.
In a first embodiment, the said elastically deformable fixing means are blocked in the position for holding the applicator member at the time the support is being fixed onto the product outlet.
Advantageously, the fixing means are elastically deformable in a direction substantially perpendicular to an axis of symmetry (X) of the container. As a preference, these fixing means exert a radial force on the applicator member.
The applicator member may advantageously include at least one catching surface into which the elastically deformable fixing means can be fixed. As a preference, the catching surface is in the form of a cylinder arranged substantially along the axis X and centred on this axis, so as to allow a uniform distribution of the fixing means fixed into the catching surface.
The elastically deformable fixing means allow the applicator member to be put back in place when it becomes detached from the support. It is also possible to change the applicator member as desired. Thus the applicator assembly according to the invention includes an interchangeable applicator member.
In a second embodiment of the invention, the elastically deformable fixing means are blocked in the position for holding the applicator member before the support is fixed onto the product outlet.
Advantageously, the applicator assembly comprises a skirt bearing radially against the fixing means, allowing these to be firmly blocked in the holding position.
Furthermore, to ensure that the applicator member is fixed firmly, the support may comprise a wall equipped with an internal surface and with an external surface of a shape which complements the catching surface of the applicator member and including the elastically deformable fixing means.
As elastically deformable fixing means, use may be made of flexible tabs equipped with catching means, the shape of which may easily be moulded at the time the suppo
REFERENCES:
patent: 3137885 (1964-06-01), Hulsh
patent: 3256549 (1966-06-01), Evesque
patent: 3471245 (1969-10-01), Schwartzman
patent: 5567073 (1996-10-01), De Laforcade et al.
patent: 5692846 (1997-12-01), Schwarzberg
"L'Oreal"
Walczak David J.
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