Process and filter for filtering a slurry

Details Process and filter for filtering a slurry Process and filter for filtering a slurry

2006-12-26

2006-12-26

Popovics, Robert James (Department: 1724)

Liquid purification or separation

Plural distinct separators

Filters

C210S438000, C210S440000, C210S443000, C210S446000, C210S450000, C210S455000, C210S456000, C210S489000

Reexamination Certificate

active

07153425

ABSTRACT:
The present invention comprises a process for filtering a slurry and a filter cartridge construction for filtering a slurry having a filtration medium formed of a depth filter such as a cylindrical seamless fibrous depth filter comprising a nonwoven fibrous mass, woven fibers, a plurality of nonwoven fibrous layers or a fibrous felt or the like or a wound depth filter retained within a housing substantially free of an open void volume upstream of the depth filter which causes separation of solid particles from a slurry being filtered The filtration medium is divided into a plurality of depth filter segments by spacers which are spaced apart from each other along the length of a filter cartridge housing which houses the depth filter, The spacers serve to divide the depth filter medium into depth filter segments and to allow fluid to pass there through along a defined path defined by the configuration of the open portions of the spacers. In addition the spacers are configured to seal the inner surfaces of the filter cartridge housing to prevent channelling of the slurry being filtered along the inner surfaces of the housing. By utilising the spacers, the compressibility of the filtration medium also is substantially reduced.

REFERENCES:
patent: 604931 (1898-05-01), Eisendrath
patent: 638742 (1899-12-01), Murphy
patent: 837845 (1906-12-01), Kiefer
patent: RE13053 (1909-12-01), Paul
patent: 2288426 (1942-06-01), Stack
patent: 2444147 (1948-06-01), Walton
patent: 2475833 (1949-07-01), Gunn
patent: 2548584 (1951-04-01), Briggs
patent: 2591056 (1952-04-01), Ericson
patent: 2654440 (1953-10-01), Warren
patent: 2683029 (1954-07-01), Ralph
patent: 2692686 (1954-10-01), Fleck et al.
patent: 2750047 (1956-06-01), Hasbrouck
patent: 2755937 (1956-07-01), Gunn
patent: 2787333 (1957-04-01), Boone et al.
patent: 2813632 (1957-11-01), Muller
patent: 2844255 (1958-07-01), Cavenah et al.
patent: 3003643 (1961-10-01), Thomas
patent: 3294241 (1966-12-01), Clarence et al.
patent: 3398834 (1968-08-01), Nuttall et al.
patent: 3537592 (1970-11-01), Odgen et al.
patent: 3593854 (1971-07-01), Swank
patent: 4025438 (1977-05-01), Gelman et al.
patent: 4115277 (1978-09-01), Swank
patent: 4347208 (1982-08-01), Southall
patent: 4661250 (1987-04-01), Rosenberg
patent: 4704207 (1987-11-01), Chu
patent: 4744901 (1988-05-01), Drori
patent: 4793922 (1988-12-01), Morton
patent: 4793928 (1988-12-01), Tsukamoto et al.
patent: 4844806 (1989-07-01), Drori
patent: 4876007 (1989-10-01), Naruo et al.
patent: 4880537 (1989-11-01), Drori
patent: 4925572 (1990-05-01), Pall
patent: 4966702 (1990-10-01), Drori
patent: 5041221 (1991-08-01), Drusi
patent: 5069790 (1991-12-01), Mordeki
patent: 5139685 (1992-08-01), de Castro et al.
patent: 5271838 (1993-12-01), Rahimi et al.
patent: 5338448 (1994-08-01), Gjerde
patent: 5368729 (1994-11-01), Stefkovich et al.
patent: 5391298 (1995-02-01), Pieper et al.
patent: 5472600 (1995-12-01), Ellefson et al.
patent: 5472605 (1995-12-01), Zuk, Jr.
patent: 5536286 (1996-07-01), Freeman
patent: 5549824 (1996-08-01), Trumpf et al.
patent: 5595653 (1997-01-01), Good et al.
patent: 5797978 (1998-08-01), Rosenberg et al.
patent: 5798041 (1998-08-01), Zuk, Jr.
patent: 5938940 (1999-08-01), Zuk, Jr.
patent: 5965019 (1999-10-01), Olsen et al.
patent: 6093230 (2000-07-01), Johnson et al.
patent: 6306300 (2001-10-01), Harding et al.
patent: 6712966 (2004-03-01), Pulek et al.
patent: 6827851 (2004-12-01), Strohm et al.
patent: 6846412 (2005-01-01), Hogan et al.
patent: 6875352 (2005-04-01), Diemer et al.
patent: 6918951 (2005-07-01), Rosenberg
patent: 2003/0159981 (2003-08-01), Diemer et al.
patent: 2005/0011840 (2005-01-01), Stankowski et al.
patent: 2005/0016936 (2005-01-01), Stankowski et al.
patent: 2005/0061729 (2005-03-01), Strohm et al.
patent: 2005/0121379 (2005-06-01), Strohm et al.
patent: 3516341 (1986-11-01), None
patent: 3741552 (1989-06-01), None

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