Dispensing – With discharge assistant – Insertable cartridge or removable container
Patent
1992-09-30
1994-03-22
Kashnikow, Andres
Dispensing
With discharge assistant
Insertable cartridge or removable container
222386, G01F 1104
Patent
active
052956156
ABSTRACT:
A dispensing container is provided for delivery of viscous flowable materials such as toothpaste. The container includes a cylindrical upper body for containing the viscous flowable material and is fitted with an orifice for allowing egress thereof. At a lower end of this body is fitted a piston sealingly slidable within the upper body. The piston is formed from a diaphragm and a skirt of circumferentially concave form surrounding the diaphragm and sealingly slideable against an inner wall of the upper body. Within the piston is a cavity downwardly open. A cylindrical lower body is received telescopically within the cylindrical upper body. A boss portion is formed on top of the lower body and extends into the piston cavity to establish a snug, frictional fit. When the container is exhausted of viscous flowable material, the upper body can be discarded and a refill of similar construction can be mounted on the reusable cylindrical lower body.
REFERENCES:
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patent: 2661126 (1953-12-01), Spencer
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patent: 5094496 (1992-03-01), Gayle et al.
Chesebrough-Pond's USA Co. Division of Conopco, Inc.
Honig Milton L.
Kashnikow Andres
Kaufman Joseph A.
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