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Disk valve with improved disk mounting

  • US 5,305,787 A
  • Filed: 02/03/1993
  • Issued: 04/26/1994
  • Est. Priority Date: 02/03/1993
  • Status: Expired due to Term
First Claim
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1. A valve assembly, comprising:

  • a housing defining a tubular flow passageway extending along a flow axis;

    a reference plane extending through said housing, perpendicular to the flow axis;

    a valve disk having attachment means for attaching to a pivot shaft;

    a double-ended pivot shaft extending through said housing with end portions lying outside said housing, said pivot shaft connected to said attachment means for mounting said valve disk for pivoting within said housing between closed and open positions, with said valve disk lying in a seal plane when in said closed position;

    said housing including a valve seat engaging said valve disk in said closed position so as to seal said flow passageway and so as to orient the seal plane at an acute angle to the flow axis; and

    spring bias means mounted on at least one of said pivot shaft end portions, outside of said housing for biasing said valve disk toward one of said closed and said open positions.

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