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Pinch-type pressure- or flow-regulating valve

  • US 4,484,599 A
  • Filed: 09/23/1983
  • Issued: 11/27/1984
  • Est. Priority Date: 09/23/1983
  • Status: Expired due to Term
First Claim
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1. A pinch-type shut-off, pressure- or flow-regulating valve comprising:

  • a valve body having at least one hole therethrough for placement of tubing,a flexible tube located in said at least one tube in said valve body,an eccentric including a substantially cylindrically shaped body, said eccentric located in said valve body and adjacent said flexible tube, a shaft projecting from one side of said cylindrically shaped body, said shaft being offset from the center of said cylindrically shaped body,a motor attached to said shaft, whereupon activation of said motor, said eccentric will move to pinch off said flexible tube by pressing said tube against the opposite side of said valve body, said eccentric further including a round rigid sleeve freely rotatably received about the outer curved portion of said cylindrically shaped body as said cylindrically shaped body rotates, and said sleeve directly engaging said tube, whereby longitudinal stress on said tube from said eccentric is substantially alleviated.

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