Fluid filter with low-cost housing

Details Fluid filter with low-cost housing Fluid filter with low-cost housing

2006-01-24

2006-01-24

Cecil, Terry K. (Department: 1723)

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

C210S441000, C210S450000, C210S454000

Reexamination Certificate

active

06988625

ABSTRACT:
A fuel-water separation filtration system for filtering fuel and for separating water out of the fuel includes a housing assembly, a filter element assembly, and a closing lid. The housing assembly includes a unitary molded housing, a plurality of flow connection fittings that are spin welded into the housing, and a standpipe that is spin welded to the housing. The filter element assembly includes a cover and an endplate and filter media with one end bonded to the cover and an opposite end bonded to the endplate. The standpipe includes an attachment portion that extends beyond the upper end of the filter element assembly and the closing lid is threadedly attached to the attachment portion for closing the housing assembly. The filtration system requires pressurization for proper operation and the filtration system cannot be pressurized without the filter element assembly being installed.

REFERENCES:
patent: 4933093 (1990-06-01), Keller
patent: 5104537 (1992-04-01), Stifelman et al.
patent: 5258118 (1993-11-01), Gouritin et al.
patent: 5342519 (1994-08-01), Friedmann et al.
patent: 5462658 (1995-10-01), Sem
patent: 5855772 (1999-01-01), Miller et al.
patent: 5868932 (1999-02-01), Guichaoua et al.
patent: 5985144 (1999-11-01), Janik et al.
patent: 6264831 (2001-07-01), Hawkins et al.
patent: 6361684 (2002-03-01), Hawkins et al.
patent: 6607665 (2003-08-01), Fick et al.

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