Porous filter
AssigneePorex Corporation
InventorsMichael Andrew Clendenning, Thomas Henry Ramsey, Tripp Augustus Avett, Timothy Allen Martin
Life of this patent
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Abstract
A filter has a longitudinal axis with an inner diameter defined by a hollow longitudinally extending center. The filter has fingers extend radially outwardly arcuately from the longitudinal axis. The fingers have base ends near the longitudinal axis and outer edges at extremities spaced from the longitudinal axis. The outer diameter of the filter is defined by the outer edges of the fingers. The filter is formed from a sintered porous molded thermoplastic or another material resulting in a filter more rigid than standard filters. The fingers are spaced apart from one another a predetermined, substantially fixed distance to form slots therebetween sized to capture contaminants therein.
Claims25
A single layered filter comprising a first end, a second end, a longitudinal axis extending between said first and second ends, and an inner diameter defined by a hollow longitudinally extending center, said single layered filter comprising:
- a self-supporting rigid porous thermoplastic filter material;
- radially-outwardly extending self-supporting curved fingers made of said filter material curving around said longitudinal axis and having base ends near said longitudinal axis and outer edges at extremities spaced from said longitudinal axis;
- wherein:
- said fingers each having a first curved face and a second curved face, the first curved face in communication with the hollow longitudinally extending center and said second curved face facing opposite of said first curved face;
- and
- said fingers are spaced apart from one another such that the second curved faces of adjacent fingers do not touch each other and slots are formed between the second curved faces of said adjacent fingers and the first curved faces of adjacent fingers do not touch each other and internal slots are formed between the first curved faces of said adjacent fingers.
Dependencies are inferred from the claim text.