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Fuel filter cartridge

  • US 5,766,463 A
  • Filed: 07/18/1996
  • Issued: 06/16/1998
  • Est. Priority Date: 08/16/1991
  • Status: Expired due to Term
First Claim
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1. A filter cartridge for mounting to a base to form a filter assembly comprising:

  • filter means comprising first and second filter elements;

    housing means for housing said filter means comprising opposing first and second shell sections wherein said first shell section has a first sidewall having a first maximum outer diameter and said second shell section has a second sidewall having a second maximum outer diameter, said first maximum outer diameter being greater than said second maximum outer diameter, said first sidewall having one end closed by a first end wall and an opposite open end, said second sidewall having one end closed by a second end wall and an opposite open end, said sections being generally symmetric about a central axis, said second end wall defining an axial opening, a connection for joining together the open ends of said first and second sidewalls, wherein said first and second end walls define axially extreme end walls of said cartridge, wherein said filter means is entirely enclosed within said housing means and wherein said first filter element is disposed in said first shell section and said second filter element is disposed in said second shell section, and wherein said second filter element includes an axial channel extending therethrough positioned adjacent the axial opening in said second end wall, whereby the axial opening in said second end wall and said axial channel of said second filter element are configured and arranged to receive a stand pipe extending from said base; and

    shoulder means connected to said housing means comprising a substantially circumferentially extending shoulder for axial engagement to secure said cartridge to a base, said shoulder means extending generally radially relative to said central axis.

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