Unit dose dispenser

Details Unit dose dispenser Unit dose dispenser

1988-07-25

1990-01-09

Shaver, Kevin P.

Dispensing

Resilient wall

Supply container delivering to receiving chamber

222212, 222321, 2223865, 2224022, B65D 3700

Patent

active

048922323

ABSTRACT:
A unit dose liquid dispenser includes a resilient metering reservoir disposed within a main reservoir in which a large supply of the liquid is maintained under pressure. Depression of an actuator to a dispensing position connects the metering chamber to the ambient while sealing it from the main reservoir resulting in the collapse of the metering reservoir and expulsion of the contents to the atmosphere at the pressure in the main reservoir.

REFERENCES:
patent: 3001524 (1961-09-01), Maison et al.
patent: 3092107 (1963-06-01), Froot
patent: 3104785 (1963-09-01), Beard, Jr.
patent: 3161329 (1964-12-01), Fedit et al.
patent: 3452905 (1969-07-01), Micallef
patent: 4057176 (1977-11-01), Horvath
patent: 4061247 (1977-12-01), Meshberg
patent: 4088425 (1978-05-01), Bennett
patent: 4138039 (1979-02-01), Micallef
patent: 4220264 (1980-09-01), Gamadia
patent: 4387833 (1983-06-01), Venus, Jr.
patent: 4458830 (1984-07-01), Werding

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