Dispensing – With flow controller or closure – Plural and/or carried by separably attached element
Patent
1986-09-02
1988-01-05
Rolla, Joseph J.
Dispensing
With flow controller or closure
Plural and/or carried by separably attached element
222185, 141364, B67D 300
Patent
active
047170514
ABSTRACT:
A check valve for removably fitting the mouth of an invertible water bottle to be placed on a water dispenser, the bottle being made of synthetic resin and provided with an external circular rib at its mouth. The valve closes the mouth during water-bottle inversion until the check valve contacts an element of the water dispenser when the bottle is in inverted position and rests on a water dispenser. The check valve includes a cylindrical body adapted to be removably fitted over the water bottle mouth and having an outer closure wall provided with a central opening forming a tapered female valve seat. The check valve further includes a male valve member part having a disc-like head axially movable within the body between the mouth and the closure wall, a stem secured to the head and extending through the central opening of the closure wall, and a tapered male valve seat portion integral with the stem and adjacent the head. Upon water-bottle inversion, the water in the bottle acts upon the valve head to close the valve. An inward force exerted on the stem opens the valve.
REFERENCES:
patent: 939594 (1909-11-01), Fulper
patent: 991568 (1911-05-01), Walter
patent: 1538483 (1924-10-01), Grantham
patent: 2453080 (1945-11-01), Shimp
patent: 3081004 (1963-03-01), Laughlin et al.
patent: 3986539 (1976-10-01), Bjerga
patent: 4133345 (1979-01-01), Mitchell
patent: 4391308 (1983-07-01), Steiner
patent: 4508246 (1985-04-01), Grenn
Huppert Michael S.
Rolla Joseph J.
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