Filter assembly with vented filter element

Details Filter assembly with vented filter element Filter assembly with vented filter element

2006-12-12

2006-12-12

Walker, W. L. (Department: 1723)

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

C210S472000, C210S450000

Reexamination Certificate

active

07147110

ABSTRACT:
A filter assembly includes a housing with a central standpipe, and cover for enclosing a filter element. The filter element includes a ring of filtration media and first and second end caps. A vent orifice is formed in the first end cap into the central cavity of the media ring. A support core is disposed centrally in the media ring and extends between the first and second end caps. The core includes a separate and independent fluid channel extending from the first end cap that is fluidly connected with the vent orifice, to the second end cap. The second end cap has a central opening, and an annular sealing device bounding the opening which receives and seals to the standpipe and includes through-passages fluidly interconnecting the fluid channel in the core with flow opening(s) along the standpipe or in the lower end of the housing to a drain port.

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Copy of Notfication of Transmittal of The International Search Report and the Written Opinion of the International Searching Authority, or the Declaration in corresponding International Application No. PCT/US2004/023646.

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