Drop dispenser

Dispensing – Resilient wall – With flow controllers or closures

Patent

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Details

222422, 222494, 604298, B65D 4718

Patent

active

045536864

ABSTRACT:
An improved drop dispenser for use with a closed compressible container, which dispenser is comprised of a small diameter tubular dispenser member of a resilient plastic material deformed at the free end thereof to provide a normally closed, integral valve-like arrangement, which valve-like arrangement is pressure actuated and partially opens when pressure within the container increases.

REFERENCES:
patent: 1738080 (1929-12-01), Smith
patent: 2632904 (1953-03-01), Halecky
patent: 2665826 (1954-01-01), Mahoney
patent: 2734665 (1956-02-01), Flamm
patent: 2962192 (1960-11-01), Volckening
patent: 3107035 (1963-10-01), Cholet
patent: 3184121 (1965-05-01), Volckening
patent: 3825157 (1974-07-01), Herzig
patent: 4138040 (1979-02-01), Stock
patent: 4328912 (1982-05-01), Haggar et al.

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