Liquid purification or separation – With repair or assembling means – Removable treatment part with normally disabled flow controller
Reissue Patent
2011-01-25
2011-01-25
Lithgow, Thomas M (Department: 1797)
Liquid purification or separation
With repair or assembling means
Removable treatment part with normally disabled flow controller
C210S136000, C210S457000
Reissue Patent
active
RE042059
ABSTRACT:
A fluid filter centerpost assembly in combination with a fluid filter cartridge for creating a “no filter-no run” design according to one embodiment of the present invention comprises an oval-shaped design for the centerpost assembly and an oval-shaped design for a seal that is positioned between the centerpost assembly and the fluid filter cartridge. The centerpost assembly includes a main body having an oval shape in lateral cross section in unitary construction with a radial flange and interior shelf. The interior shelf defines a flow opening and a movable valve ball is positioned on the interior shelf and is able to move in the direction of the flow opening due to incoming fluid pressure. The fluid filter cartridge includes a closed endcap with a blocking pin such that when the fluid filter cartridge is installed, the blocking pin is positioned to prevent the valve ball from closing off the flow opening.
REFERENCES:
patent: 2544244 (1951-03-01), Cecil
patent: 3246766 (1966-04-01), Pall
patent: 3363762 (1968-01-01), Ensign
patent: 3584194 (1971-06-01), Kautz et al.
patent: 3800948 (1974-04-01), LaVallee
patent: 3852196 (1974-12-01), Szpur
patent: 4029121 (1977-06-01), Buzzi
patent: 4272368 (1981-06-01), Foord et al.
patent: 4303514 (1981-12-01), Theorell
patent: 4354931 (1982-10-01), Allori et al.
patent: 4555337 (1985-11-01), Gargas
patent: 5049269 (1991-09-01), Shah
patent: 5102542 (1992-04-01), Lawrence et al.
patent: 5132009 (1992-07-01), Futa et al.
patent: 5215655 (1993-06-01), Mittermaier
patent: 5458767 (1995-10-01), Stone
patent: 5643446 (1997-07-01), Clausen et al.
patent: 5770065 (1998-06-01), Popoff et al.
patent: 5846417 (1998-12-01), Jiang et al.
patent: 5855780 (1999-01-01), Dye et al.
patent: 5858227 (1999-01-01), Stone
patent: 5922199 (1999-07-01), Hodgkins
patent: 5958230 (1999-09-01), Pyle et al.
patent: 6015492 (2000-01-01), Popoff
patent: 6053334 (2000-04-01), Popoff et al.
patent: 6113781 (2000-09-01), Popoff et al.
patent: 6171491 (2001-01-01), Popoff
patent: 6248236 (2001-06-01), Hodgkins
patent: 6328883 (2001-12-01), Jensen
patent: 6495042 (2002-12-01), Knight
patent: 6554139 (2003-04-01), Maxwell et al.
patent: 6555000 (2003-04-01), Knight
patent: 6884349 (2005-04-01), Jiang
Cummins Filtration IP Inc.
Krieg DeVault LLP
Lithgow Thomas M
Schelkopf, Esq. J. Bruce
LandOfFree
Oval centerpost and cooperating filter cartridge does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oval centerpost and cooperating filter cartridge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oval centerpost and cooperating filter cartridge will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2672981