Fluid handling – Systems – Plural noncommunicating flow paths
Patent
1989-07-17
1991-02-19
Schwadron, Martin P.
Fluid handling
Systems
Plural noncommunicating flow paths
251 7, 25112915, 25112916, 137554, 137556, F16K 1100
Patent
active
049934562
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. In still another alternative embodiment the plunger is mounted in roller bearings and the top of the plunger bears on an electrical switch contact which provides an electrical verification of the open or closed state of the pinch valve assembly.
REFERENCES:
patent: 2063655 (1936-12-01), Barnes
patent: 2619386 (1952-11-01), Dalrymple
patent: 3264067 (1966-08-01), Alderfer
patent: 3482816 (1969-12-01), Arnold
patent: 3851285 (1974-11-01), Rothfuss et al.
patent: 3895649 (1975-07-01), Ellis
patent: 4183467 (1980-01-01), Sheraton et al.
patent: 4195662 (1980-04-01), Gottel
patent: 4230151 (1980-10-01), Jonsson
patent: 4259985 (1981-04-01), Bergmann
patent: 4341241 (1982-07-01), Baker
patent: 4711266 (1987-12-01), Leiber
Flanigan Allen J.
Malina Bernard
Schwadron Martin P.
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