Container for plastic substances

Details Container for plastic substances Container for plastic substances

1983-04-29

1985-06-11

Rolla, Joseph J.

Dispensing

With discharge assistant

Insertable cartridge or removable container

206384, B65D 8854

Patent

active

045223165

ABSTRACT:
A container for a plastic substance includes an axially elongated sleeve defining a hollow space for holding the substance. An extrusion piston is slidably displaceable through the hollow space for extruding the substance out of a discharge outlet. The piston forms a closure for the hollow space. Before the substance is extruded from the sleeve, a sealing ring, inserted between the inside surface of the sleeve and the piston, prevents the penetration of air into the hollow space, and the loss of gases formed by the evaporation of solvents out of the hollow space.

REFERENCES:
patent: 2855130 (1958-10-01), Hosler
patent: 3272401 (1966-09-01), Fendler et al.
patent: 3880331 (1975-04-01), Perkins
patent: 3884396 (1975-05-01), Gordon et al.
patent: 4217995 (1980-08-01), Robillard

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