Patent ID: 6364121
Filing Date: 2002-04-02
Classification: B01D,Y10S

Abstract:
A filter cartridge for mounting to a base, the base defining a substantially planar receiving surface and including conduit means extending orthogonally from said receiving surface and coaxially with a base axis, the cartridge comprising:filter means for filtering a flow of liquid, said filter means comprising at least one filter element; housing means for housing said filter means, said housing means comprising opposing first and second shell sections, said sections being generally symmetric about a cartridge axis and being joined together, said second section including an end surface axially spaced from said first section, said end surface defining a cartridge opening coaxial with said cartridge axis; cartridge seal means enclosed within said housing for fluidly sealing said conduit means, said seal means including a seal lip coaxial with and orthogonal to said cartridge axis; and cartridge bias means axially extending from said cartridge seal means for resilient displacement between an extended position and a compressed position between said end surfaced and said receiving surface, said compressed position producing a resilient biasing force urging said cartridge away from said receiving surface, wherein said cartridge bias means terminates in an axially protecting contact surface defined by a plurality of anaularly spaced axial projections.