Valve arrangement

Details Valve arrangement Valve arrangement

1989-12-19

1991-01-01

Smith, Leonard E.

Pumps

Expansible chamber type

Having pumping chamber pressure responsive distributor

137888, F16K 1502, F04C 2908

Patent

active

049814214

ABSTRACT:
The valve arrangement comprises a disc engageable with a valve seat without attachment and a resilient diaphragm engageable with the disc without attachment. The disc completely covers a passage surrounded by the valve seat and flowed through by a fluid. On the side remote from the valve seat, the disc has a central protuberance with cooperates with a central thrust surface of the diaphragm. The disc and the diaphragm are freely movable in a recess adapted to be flowed through by the fluid, the recess being present in a guide member extending around the valve seat. The recess has an inwardly projecting step with which the diaphragm edge part is urged into engagement. This arrangement leads to a flat compact valve with minimum dead space.

REFERENCES:
patent: 1998444 (1935-04-01), Clapp
patent: 2155236 (1939-04-01), Newell
patent: 2754844 (1956-07-01), Blackford
patent: 2792790 (1957-05-01), Capps
patent: 2800142 (1957-07-01), Champion
patent: 3664371 (1972-05-01), Schneider
patent: 3911502 (1975-10-01), Boretos
patent: 4368755 (1983-01-01), King
patent: 4428464 (1984-01-01), Miura
patent: 4543989 (1985-10-01), Lorson

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