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Fuel filter assembly with in-line valve

  • US 5,858,227 A
  • Filed: 09/18/1997
  • Issued: 01/12/1999
  • Est. Priority Date: 09/23/1996
  • Status: Expired due to Term
First Claim
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1. A filter comprising:

  • a housing including a filter chamber, the housing including an opening to said filter chamber, said filter chamber bounded by a generally longitudinally-extending, imperforate annular wall adjacent said opening;

    first fluid port and a second fluid port into said filter chamber;

    one of said fluid ports including a valve member normally spring-biased into a closed position to block fluid flow through said one port;

    a removable filter element in said filter chamber, said filter element having a ring of filter media, said ring defming an interior area and an exterior area in said filter chamber;

    said filter element further including a disk-shaped member attached to a first end of said filter media ring, said disk-shaped member having unitary therewith an annular lip portion extending axially from said disk-shaped member toward a second end of said filter element and circumferentially surrounding an axial extent of the filter media ring, said lip portion also projecting radially outward from the media ring and sealingly engaged circumferentially around said annular wall to fluidly separate said interior area from said exterior area of said filter chamber such that said first port is fluidly connected to said interior area and said second port is fluidly connected to said exterior area, said lip portion also engaging said valve member and positioning said valve member in an open position to allow fluid flow through said one port.

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