Liquid purification or separation – Flow – fluid pressure or material level – responsive – Fluid pressure responsive by-pass
Reexamination Certificate
2007-10-16
2007-10-16
Cecil, Terry K. (Department: 1723)
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Fluid pressure responsive by-pass
C210S167080, C210S416500
Reexamination Certificate
active
10932887
ABSTRACT:
A sump filter assembly wherein a filter element that may or may not be removably disposed in a filter housing is sealingly engaged with the filter housing by way of a sealing member to separate the filter housing cavity between dirty and clean spaces. The filter element is provided with filtration material with a portion thereof embedded in the filter element, the filter element is further provided with a sealing member retaining shoulder to ensure proper placement of the sealing member in the assembly, with the sealing member being an O-ring or gasket member, among other things, and a bypass valve for cold flow of transmission fluid is optionally provided.
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Hawley's Condensed Chemical Dictionary (Lewis, Richard J., Sr., 13thedition, pp. 811-812, for properties of nylon), not dated.
Boast, legal representative William L.
Larkin Larry
Cecil Terry K.
Filtertek Inc.
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