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Micro-valve

  • US 8,048,041 B2
  • Filed: 10/25/2007
  • Issued: 11/01/2011
  • Est. Priority Date: 10/26/2006
  • Status: Expired due to Fees
First Claim
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1. A one-way valve comprising:

  • a membrane having an inner portion and an outer portion;

    a raised seat that extends beyond a plane of the outer membrane portion; and

    a conduit extending through the seat to define an inlet of the valve, wherein the inner portion of the membrane is stretched over the raised seat to close the conduit therethrough in a closed condition of the valve, the inner membrane portion being selectively deflected from the raised seat in an open condition of the valve to open said conduit such that a fluid path is created from one side of the membrane to the other, and wherein an outer peripheral portion of the membrane is stiffer than the inner portion such that the membrane deflection is substantially restricted to only the inner portion.

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