Liquid purification or separation – With repair or assembling means
Reexamination Certificate
2007-01-23
2009-12-29
Lithgow, Thomas M (Department: 1797)
Liquid purification or separation
With repair or assembling means
C210S440000, C210S444000, C210S450000
Reexamination Certificate
active
07638045
ABSTRACT:
A filter assembly is described that includes a substantially recyclable filter cartridge inside a pressure vessel. The invented filter cartridge comprises substantially non-pressure bearing walls, except for a pressure-bearing neck or cap with neck that is adapted to withstand high pressures preferably in the range of at least 200 psi, and more preferably at least 475 psi from the inside. The walls of the filter cartridge that are incapable of withstanding significant internal pressure are surrounded on the outside by a pressure vessel. The invented cartridge need not seal to the pressure vessel, because the cartridge neck protrudes outside of the pressure vessel to seal directly to a filter head. The cartridge preferably includes a quick-disassembly mechanism for allowing quick and non-destructive access to the internal components and media of the cartridge.
REFERENCES:
patent: 3684100 (1972-08-01), Close
patent: 3883428 (1975-05-01), Waring
patent: 3935106 (1976-01-01), Lipner
patent: 4051036 (1977-09-01), Conrad et al.
patent: 4052307 (1977-10-01), Humbert, Jr.
patent: 4082673 (1978-04-01), Cilento
patent: 4133763 (1979-01-01), Cooper
patent: 4349438 (1982-09-01), Sims
patent: 4396512 (1983-08-01), Beauman et al.
patent: 4402828 (1983-09-01), Edens
patent: 4504387 (1985-03-01), LeMire et al.
patent: 4529515 (1985-07-01), Selz
patent: 4559138 (1985-12-01), Harms, II
patent: 4588503 (1986-05-01), Sugiura
patent: 4591438 (1986-05-01), Tanabe et al.
patent: 4645601 (1987-02-01), Regunathan et al.
patent: 4654142 (1987-03-01), Thomsen et al.
patent: 4719012 (1988-01-01), Groezinger et al.
patent: 4725354 (1988-02-01), Thomsen et al.
patent: 4764275 (1988-08-01), Robichaud
patent: 4781830 (1988-11-01), Olsen
patent: 4806240 (1989-02-01), Giordano et al.
patent: 4857189 (1989-08-01), Thomsen et al.
patent: 4904382 (1990-02-01), Thomsen
patent: 4915831 (1990-04-01), Taylor
patent: 4956086 (1990-09-01), Thomsen et al.
patent: 5013434 (1991-05-01), Furrow
patent: 5024761 (1991-06-01), Deibel
patent: 5026478 (1991-06-01), Tanabe et al.
patent: 5104537 (1992-04-01), Stifelman et al.
patent: RE34031 (1992-08-01), Thomsen et al.
patent: RE34050 (1992-09-01), Thomsen et al.
patent: 5171430 (1992-12-01), Beach et al.
patent: 5254242 (1993-10-01), van der Meer et al.
patent: 5256285 (1993-10-01), Tomita et al.
patent: 5376272 (1994-12-01), Spearman
patent: 5397468 (1995-03-01), Chomka et al.
patent: 5643448 (1997-07-01), Martin et al.
patent: 5653871 (1997-08-01), Thomsen
patent: 5656159 (1997-08-01), Spencer et al.
patent: 5685985 (1997-11-01), Brown et al.
patent: 5762789 (1998-06-01), de los Reyes et al.
patent: 5919362 (1999-07-01), Barnes et al.
patent: 6322697 (2001-11-01), Hacker et al.
patent: 6533931 (2003-03-01), Reid
patent: 6576129 (2003-06-01), Reid
patent: 0 492 627 (1992-07-01), None
patent: 0 526 932 (1993-02-01), None
patent: WO 96 09875 (1996-04-01), None
Lithgow Thomas M
Pedersen Barbara S.
Pedersen Ken J.
Pedersen & Co. PLLC
LandOfFree
Pressure vessel and recyclable 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 Pressure vessel and recyclable filter cartridge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure vessel and recyclable filter cartridge will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4144640