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Diaphragm assembly

  • US 5,232,194 A
  • Filed: 09/21/1992
  • Issued: 08/03/1993
  • Est. Priority Date: 09/21/1992
  • Status: Expired due to Term
First Claim
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1. A one-piece, unitary diaphragm assembly for use in a flush valve comprising:

  • an annular flexible diaphragm having a sealing surface and a mounting portion at the peripheral edge for mounting said diaphragm assembly within a flush valve;

    a bypass orifice in said diaphragm;

    a flow control means adjacent said sealing surface;

    an elongated barrel member adjacent to said flow control means;

    a plurality of radial guides positioned circumferentially around the outer surface of said barrel member and extending along at least a portion of the longitudinal length of said barrel member; and

    a relief valve seat at the upper end of said elongated barrel member, said relief valve seat being planar and adapted for sealing a relief valve of the flush valve.

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