Dosing and dispensing device

Details Dosing and dispensing device Dosing and dispensing device

1989-12-12

1991-03-19

Huppert, Michael S.

Dispensing

Resilient wall

Supply container delivering to receiving chamber

222282, 222210, 222453, 222456, B65D 3700

Patent

active

050003534

ABSTRACT:
This container is a unique self-dosing and dispensing container. Through the use of a one-piece, self-aligning valve which moves from one position of closing a dispensing opening to a position of opening the dispensing opening and simultaneously closing the opening between the container and the chamber which contains the dispensing opening. The valve is operated by a change in pressure within the container. The change in pressure in the container is induced by flowing an excess of fluide from the container so as to cause a negative pressure. There are various techniques for creating a negative pressure in the container, including the use of a bellows built into the container and a squeezing of the sidewalls of the container.

REFERENCES:
patent: 298778 (1884-05-01), Rogers, Jr.
patent: 2233818 (1941-03-01), Matter
patent: 2939615 (1960-06-01), Lerner
patent: 3141580 (1964-07-01), Rogers
patent: 3229866 (1966-01-01), Arbitman et al.
patent: 3255933 (1966-06-01), Martin
patent: 3841524 (1974-10-01), Easter
patent: 4257538 (1981-03-01), Fowler
patent: 4582230 (1986-04-01), Vierkotter
patent: 4773569 (1988-09-01), Larsson
patent: 4811871 (1989-03-01), Wass et al.

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