Pinch valve for regulating fluid flow

Details Pinch valve for regulating fluid flow Pinch valve for regulating fluid flow

2007-11-12

2008-12-30

Fristoe, Jr., John K (Department: 3753)

Valves and valve actuation

Tube compressors

Perpendicularly reciprocating tube contacting element

C251S004000, C251S279000

Reexamination Certificate

active

07469875

ABSTRACT:
A pinch valve for regulating fluid flow having a close mechanism using push-pull members and an open mechanism using open follower members in order to pinch a sleeve closed and to assist in opening it. In a particular embodiment, a four-bar linkage is employed.

REFERENCES:
patent: 985811 (1911-03-01), Kellam
patent: 1809091 (1931-06-01), Wiken
patent: 4159634 (1979-07-01), Stengard
patent: 6502367 (2003-01-01), Sterner et al.
patent: 6892900 (2005-05-01), Drechsel

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