Pinch valve assembly

Details Pinch valve assembly Pinch valve assembly

1982-03-02

1985-01-29

Nilson, Robert G.

Valves and valve actuation

Tube compressors

Perpendicularly reciprocating tube contacting element

137595, 251129, F16K 704

Patent

active

044961332

ABSTRACT:
A pinch valve assembly includes a valve body in which a plunger is spring loaded against a portion of a flexible tube which passes through the valve body. The plunger causes the flexible tube to collapse preventing flow through the tube. Energization of a solenoid which is mounted on the valve body causes the plunger to release the tube, permitting flow. In an alternative embodiment, energization of the solenoid causes the plunger to bear on the flexible tube thereby providing a normally open valve arrangement.
In another alternative embodiment the plunger bears on a plurality of flexible tubes thereby facilitating simultaneous control of different fluids.

REFERENCES:
patent: 3264067 (1966-08-01), Alderfer
patent: 3511469 (1970-05-01), Bell
patent: 3823724 (1974-07-01), Davis
patent: 4259985 (1978-12-01), Bergmann
patent: 4354984 (1982-10-01), Richardson

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