Unidirectional paste dispenser

Details Unidirectional paste dispenser Unidirectional paste dispenser

1999-04-23

2000-05-23

Shaver, Kevin

Dispensing

Collapsible wall-type container

Plural container and/or compartment

222 92, 222107, B65D 8904

Patent

active

060656441

ABSTRACT:
A squeezeable dispensing container for paste-like substances comprising, a closed tube having flexible side-walls and a selectively closeable dispensing aperture, a plurality of paste containing capsule members disposed in serially connected chains within the container, each capsule having an open base end and a convex end, and each having a check valve in the vertex of the convex end thereof that is openable and closable as a function of lateral pressure exerted on the capsule. Lateral pressure on the container and the capsules acts to extrude paste out of one capsule and into the next capsule in the chain. The check valves in each of the capsules prevents the paste from regressing in the container, permitting only the forward movement of the paste. toward the container's aperture.

REFERENCES:
patent: 3189227 (1965-06-01), Hobbs et al.
patent: 3724497 (1973-04-01), Federer et al.
patent: 4846370 (1989-07-01), Elleman et al.
patent: 5169030 (1992-12-01), Lewin

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