Diaphragm control valve

Details Diaphragm control valve Diaphragm control valve

1994-01-21

1995-01-24

Schwadron, Martin P.

Valves and valve actuation

Fluid actuated or retarded

Flexible wall expansible chamber reciprocating valve actuator

251 3002, 251 614, 251331, F16K 31126

Patent

active

053836464

ABSTRACT:
A diaphragm control valve includes a diaphragm valve member having an outer peripheral section for securing the diaphragm within the valve housing, a valve-closer section displaceable with respect to the valve seat for controlling the flow, an intermediate flexible section permitting the displacement of the valve-closer section, and a cylindrical guiding section between the valve-closer section and the intermediate flexible section. The housing includes a cylindrical guiding surface engageable with the cylindrical guiding section of the diaphragm and with the valve-closer section for guiding the movement of the valve-closer section.

REFERENCES:
patent: 2638127 (1953-05-01), Griswold
patent: 2939725 (1960-06-01), Graham
patent: 2963266 (1960-12-01), Boteler
patent: 3073490 (1963-01-01), Dahl et al.
patent: 3468511 (1969-09-01), Haskins
patent: 4244554 (1981-01-01), DiMauro et al.
patent: 4316482 (1982-02-01), Pearce et al.
patent: 4505450 (1985-03-01), Saarem et al.
patent: 4653526 (1987-03-01), Hoiss
patent: 4703775 (1987-11-01), Pastrone

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