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Filter unit

  • US 20030062301A1
  • Filed: 01/10/2002
  • Published: 04/03/2003
  • Est. Priority Date: 01/10/2001
  • Status: Abandoned Application
First Claim
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1. A filter unit comprising a housing having a wall defining therein an aperture, an annular insert of a plastics material located in said aperture to make sealing contact with the defining wall of the aperture, a closure member removably mounted in, to make sealing engagement with, the annular insert, and a filter cartridge mounted on the closure member to extend into the housing, the closure member and filter cartridge being locatable on and removable from the housing as a unit.

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