Coating implements with material supply – Including tool with blade-like – pad-like – or apertured...
Reexamination Certificate
2000-03-20
2001-09-04
Walczak, David J. (Department: 3751)
Coating implements with material supply
Including tool with blade-like, pad-like, or apertured...
C401S139000
Reexamination Certificate
active
06283664
ABSTRACT:
The invention concerns applicators of products, in particular for the care and topical treatment of the skin, including the make-up of the skin, nails, hair and of the mucous membranes. The aim of the invention is, in particular, an applicator of powder products that is ready for use, easy to handle, for a one-off use and having an efficiency at least equivalent to that of conventional products. The aim of the invention is, moreover, to provide a device that is easy and economical to make, as well as a method for obtaining the applicator in accordance with the invention. The invention may be applied in particular as a tester, or sampler of cosmetic products, such as care or make-up powders, (colorants, eyeshadows, blushers, kohl, liners, means for concealing rings round the eyes or wrinkles etc.) or such products as are sold in amounts that are easy to carry.
It is known that samples of cosmetic products are made from adhesive strips onto which the product to be tested is sprayed. Moreover, testers are known onto which the powder has previously been pressed, to obtain samples ready for use which have only one coated side. Applicators are also known which have a core comprising a flocked coating whereon a powder is compacted. All these systems have the main drawback that they do not offer a good hold of the powder on its support during carriage. Moreover, during their application to the skin, the transfer is frequently unequal, thus producing a make up of poor quality. Similarly, the ease of application leaves much to be desired.
French Patent Application 95/11111 filed on the Sep. 27, 1995 in the name L'Oreal for “A foam puff for the care and topical treatment of the skin” describes, as illustrated in
FIG. 1
, a foam puff for the care and topical treatment of the skin, nails, hair and of the mucous membranes, constituted by two foam slabs
11
, of substantially the same size and contours, superposed edge to edge between which is encapsulated a powder
12
of a cosmetic, dermatological or pharmaceutical product that is soluble or emulsifiable in water, the two slabs
11
being kept joined together by at least one weld
13
in the vicinity of, or on, their periphery
14
. However, such a system is not altogether satisfactory in that the restitution of the powder through the meanders of the cells forming the foam is restrained.
Thus one of the objects of the present invention is to create an applicator of a powder product ready for use, not having the above mentioned drawbacks, and providing in particular a good hold of the powder on the applicator during its carriage, as well as a good transfer of the powder during its application to a surface to be treated, thus obtaining a homogeneous application.
REFERENCES:
patent: 4341819 (1982-07-01), Schreffler et al.
patent: 4459332 (1984-07-01), Giglia
patent: 5180240 (1993-01-01), Gueret
L'Oreal
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Walczak David J.
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