Diaphragm device

Details Diaphragm device Diaphragm device

1976-03-08

1981-02-17

Rosenthal, Arnold

Valves and valve actuation

Reciprocating valve

Diaphragm

137855, 137859, 92 99, 417568, F16K 716

Patent

active

042510538

ABSTRACT:
In a diaphragm device, a round diaphragm of flexible material comprising a rim clamped between and sealingly gasketing upper and lower housing members, a coaxial annular arched vault within and circumferentially continuously joined at its outer periphery to the rim and having an inner downwardly directed periphery connected to an obliquely downwardly-facing disk-shaped portion including a molded-in or otherwise incorporated shape-maintaining oblique core disk to afford an integral swingable shiftable portion useful as a valving member in a shutoff type actuated valve or a check valve, or as the operably shiftable main part of a pump diaphragm, for which examples are disclosed.

REFERENCES:
patent: 2134072 (1938-10-01), Christensen
patent: 2742785 (1956-04-01), St. Clair
patent: 3070029 (1962-12-01), Russell
patent: 3613518 (1971-10-01), Prosser
patent: 3709461 (1973-01-01), Johnson
patent: 3796408 (1974-03-01), Sheppard

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