Pinch valves
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United States of America Patent
Stats
-
Sep 27, 2005
Grant Date -
N/A
app pub date -
Nov 5, 2003
filing date -
Nov 5, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
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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