Filter cartridge with inlet flow diffuser

Details Filter cartridge with inlet flow diffuser Filter cartridge with inlet flow diffuser

2011-08-09

2011-08-09

Kurtz, Benjamin (Department: 1772)

Liquid purification or separation

Filter

Prefilt flow distributor or diverter

C210S767000, C210S167010, C210S256000, C210S306000, C210S314000, C210S315000, C210S335000, C210S337000, C210S338000, C210S342000

Reexamination Certificate

active

07992723

ABSTRACT:
A filter includes filter media and a housing surrounding the media. The housing has an outlet and is sealed such that all fluid flow out of the outlet must first enter the cartridge and pass through the media. The housing has multiple inlet flow paths configured so that fluid impinging on the housing is diffused as it enters the cartridge and is prevented from flowing directly towards the filter media.

REFERENCES:
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patent: 3397793 (1968-08-01), MacDonnell
patent: 3724670 (1973-04-01), Gernhardt
patent: 4064938 (1977-12-01), Fast
patent: 4456529 (1984-06-01), Shinaver
patent: 5881809 (1999-03-01), Gillespie et al.
patent: 5980745 (1999-11-01), Voll et al.
patent: 2003/0222010 (2003-12-01), Bassett et al.
patent: 202 13 512 (2004-02-01), None
patent: 1 015 092 (1999-03-01), None
patent: 99/12630 (1999-03-01), None
patent: 2005/044420 (2005-05-01), None
Brochure entitled, “PTI Technologies, Inc. 421® The Ideal Filter Medium” (4 pages) (2002).

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