Curtain valve

Details Curtain valve Curtain valve

1974-12-27

1976-04-20

Rosenthal, Arnold

Fluid handling

Systems

Multi-way valve unit

251DIG2, F16K 4700

Patent

active

039511685

ABSTRACT:
Described herein are fluid flow control valves of the type wherein a perforated orifice member is interposed between the valve inlet and outlet, and a flexible membrane is provided which selectively covers and uncovers the perforations in the orifice member. A valve stem is provided which is attached to an edge of the membrane and by reciprocal movement of this valve stem the membrane may be peeled from a surface of the orifice member to expose perforations for fluid flow.

REFERENCES:
patent: 1361879 (1920-12-01), Kuehner
patent: 2216000 (1940-09-01), Crawford
patent: 2675025 (1954-04-01), Wynkoop
patent: 2918087 (1959-12-01), Curran
patent: 3771563 (1973-11-01), Hayner

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