Coating implements with material supply – Solid material for rubbing contact or support therefor – Including holder
Reexamination Certificate
1999-05-26
2001-02-27
Walczak, David J. (Department: 3751)
Coating implements with material supply
Solid material for rubbing contact or support therefor
Including holder
C401S098000, C706S032000
Reexamination Certificate
active
06193427
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to a device for distributing a pasty, in particular cosmetic product such as a lipstick consisting of a body enclosed in a casing having been used as a mould for the making of the porduct, the casing comprising a stationary hollow body and a cap for closing and opening the casing to permit the use of the pasty product and to a method of manufacture of such a distributing or dispensing device.
BACKGROUND OF THE INVENTION
In the dispensing devices of this type which are known, the paste consists of a stick carried by a piston axially movable in the casing between a retracted position and an outward extended position of use. In such a case, the casing is essentially constituted by an elongated tubular body and a cap is made as a cover for closing the top end of the body.
These known distributing or dispensing devices are designed in order that the stick may have the greatest possible length and that the height of the base inserted into the piston be relatively small with respect to this length. Research has shown that the structure of the dispensing device is complex and that the filling with a pasty product from the base or bottom of the device is difficult to carry out automatically. Now to the extent where the devices for dispensing cosmetic products are products manufactured in a great number, these two facts constitute serious inconveniences.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a distributing or dispensing device of the kind described hereinabove, which would not exhibit these inconveniences.
To reach this goal, the distributing or dispensing device according to the invention has a hollow body for anchoring the base portion of the body of the pasty product surrounding the latter and the cap surrounds the free usable portion of this body.
According to of the invention, the cap is pivotally connected to the hollow body through a pivot means mounted between opposite front faces of the body and of the cap. Pivoting between positions of closing and of opening the casing.
According to invention, at least that side face of the body of the pasty product which is opposite to the pivot means exhibits, in the plane of pivoting, a profile in the shape of an arc of a circle having radius slightly smaller than the distance between the pivot axis and the lower peripheral edge line of the front face of the cap at the level of this side face.
According to the invention, the hollow body comprises, in its base face, a sealable aperture to be used as a hole for filling the casing with the pasty product.
According to the invention, the aperture is sealable with a stopper after the filling.
According to the invention, the opposite front faces of the hollow body and of the cap comprise sealing means advantageously provided by a peripheral rib provided on one of the two opposite faces and intended to be inserted in a groove of complementary shape the other face.
According to the invention, the casing exhibits a general ovoidal shape advantageously with an oval cross section in a plane parallel to the pivot axis, the latter extending in parallel relation to the minor or short axis of this cross section.
A method of manufacture of the device for distributing or dispensing a pasty product according to the invention includes making in a single operation, the casing as one single piece through injection, filling the casing in the closed state with the pasty product through the filling aperture provided in the base face of the casing and thereafter sealing this filling aperture by the insertion of a closure stopper into the aperture.
REFERENCES:
patent: 4208143 (1980-06-01), Nored
patent: 4459058 (1984-07-01), Bennett
patent: 5046875 (1991-09-01), Skolnik
patent: 5092700 (1992-03-01), Susini et al.
patent: 5306107 (1994-04-01), Kageyama et al.
Leydig , Voit & Mayer, Ltd.
Walczak David J.
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