Multi-element filter arrangement and methods

Details Multi-element filter arrangement and methods Multi-element filter arrangement and methods

2009-08-25

2010-11-23

Greene, Jason M (Department: 1797)

Gas separation

Two or more separators

C055S498000, C055S486000, C055S495000, C055S499000, C055S500000, C055S502000, C055S510000, C055S511000, C095S273000

Reexamination Certificate

active

07837754

ABSTRACT:
A filter element includes a first, outer tubular construction of filter media defining a first open filter interior; a second, inner tuber construction of filter media defining a second open filter interior; the second construction of filter media being located within the first open filter interior and being radially spaced from the first construction of filter media; and the second open filter interior defines an unfiltered fluid channel. A plastic inner liner is within the first open filter interior to support the first construction of filter media. A plastic outer liner is within the first open filter interior to support the second construction of filter media. A filtered fluid channel is defined between the inner liner and the outer liner. A brace arrangement is between the first and second tubular constructions. The brace arrangement can include a spring, a plurality of gussets, or a solid spacer.

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