Pinch valves

Details Pinch valves Pinch valves

2005-09-27

2005-09-27

Jacyna, J. Casimer (Department: 3751)

Valves and valve actuation

Tube compressors

C251S005000, C251S007000

Reexamination Certificate

active

06948696

ABSTRACT:
A pinch valve has a resiliently flexible tubular valve member folded upon itself at an intermediate portion of the length of the valve member to establish a folded configuration including a longitudinally extending folded portion, preferably in the form of folds, and an operator for selectively exerting a lateral force upon the valve member to unfold the folded portion, or folds, so as to restrict the flow of fluid through the valve member by closing down the valve member. Upon release of the lateral force, biasing forces established by memory characteristics in the construction of the valve member return the valve member to the folded configuration to open the valve member for unrestricted flow of the fluid.

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