Patent ID: 6027644
Filing Date: 2000-02-22
Classification: B01D,C02F,Y10S

Abstract:
A filter cartridge for use with a filter apparatus manifold having a flow inlet and a flow outlet, the filter apparatus manifold and the filter cartridge comprising a filter apparatus when the filter cartridge is brought into operable engagement with the filter apparatus manifold, comprising:a housing having a filter cavity defined by a cavity wall;filter means for filtering contaminants from a flow of liquid being disposed within the filter cavity, having a hollow flow core and being spaced apart from the cavity wall to define an inlet flow channel between the filter means and the cavity wall;inlet/outlet means being a two stage recess, the recess having a first cylindrical stage and further having a second substantially cylindrical stage being concentric with the first cylindrical stage channel and the second cylindrical stage being in flow communication with the hollow flow core of the filter means, the first cylindrical stage presenting a first mating surface for mating with the filter apparatus manifold and the second substantially cylindrical stage presenting a second mating surface for mating with the filter apparatus manifold, the first and second mating surfaces being substantially continuous and free of interruption by fluid seals; andat least a pair of shoulder flanges being disposed proximate the inlet/outlet means and being matable in an interlocking engagement wit a corresponding pair of manifold flanges rotation of the shoulder flanges with respect to the manifold flanges acting to lockingly engage the filter cartridge and the filter apparatus manifold.