Piston dispenser for paste or solid products

Details Piston dispenser for paste or solid products Piston dispenser for paste or solid products

1990-02-02

1991-04-23

Johnson, Richard J.

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including means to advance material

401175, 401 68, B05C 1700, B45D 4006

Patent

active

050095340

ABSTRACT:
The dispenser of a solid or paste product to be spread includes a reservoir (1) containing the product (P), which is made available by a drive mechanism manually controlled by the user, the reservoir (1) being a tube the interior of which is cylindrical, the tube including a dispensing opening (4), and a product (P) being disposed in the tube between the dispensing opening (4) and a displaceable piston (5), the translation of the piston (5) being obtained by means of the drive mechanism, the drive mechanism including a rod (6) at the end of which the piston (5) is engaged, the piston (5) being pierced, from its face (10) closest to the product (P) to its face facing the drive mechanism, by at least one conduit (11). The edge of the dispensing opening (4) are at least partly covered with a layer of an air-permeable material that serves to apply the product (P), the layer (8) being positioned over the edge.

REFERENCES:
patent: 2336328 (1943-12-01), Whalen
patent: 2559889 (1951-07-01), Mathews
patent: 3106908 (1963-10-01), Gretz
patent: 3232276 (1966-02-01), Kupersmith
patent: 3256980 (1966-06-01), Bau
patent: 3358699 (1967-12-01), Bau
patent: 4664547 (1985-07-01), Rosenwinkel

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