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Adjustable valve for liquids for equipment having a medical application

  • US 4,671,320 A
  • Filed: 07/16/1986
  • Issued: 06/09/1987
  • Est. Priority Date: 07/19/1985
  • Status: Expired due to Term
First Claim
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1. An adjustable valve for liquids comprising:

  • a flexible tubular body having a first end and a second end, said body capable of elongation along the longitudinal axis;

    a substantially cylindrical rigid body, said rigid body having a diameter smaller than the inside diameter of said flexible tubular body, said rigid body provided within said flexible tubular body to form a radial clearance between said rigid body and the inside surface of said flexible tubular body; and

    means for elongating said flexible tubular body along the longitudinal axis about said rigid body, whereby elongation of said flexible tubular body reduces said radial clearance.

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