Displacement filter apparatus

Details Displacement filter apparatus Displacement filter apparatus

2004-12-20

2010-10-12

Savage, Matthew O (Department: 1797)

Liquid purification or separation

Plural distinct separators

Filters

C210S342000, C210S416100, C210S489000

Reexamination Certificate

active

07811454

ABSTRACT:
A method and apparatus for filtering a slurry utilizing a displacement filtering principle. The filter apparatus desirably includes an inner filter and an outer filter. Both the inner and outer filters are preferably substantially annular in shape and positioned concentrically with respect to each other. A particulate collection volume is at least partially defined between the inner and outer filter. The method includes directing a flow of slurry into the particulate collection volume under sufficient pressure to force fluid within the particulate collection volume through one of the inner and outer filters and any particulate matter blocking a filtering surface of the inner and outer filters.

REFERENCES:
patent: 317855 (1885-05-01), Ripley
patent: 806920 (1905-12-01), Rossi
patent: 999759 (1911-08-01), Dondey et al.
patent: 1672659 (1928-06-01), Sohler
patent: 2730242 (1956-01-01), Samuel
patent: 3347386 (1967-10-01), Kraissl, Jr.
patent: 3591008 (1971-07-01), Diefenbach
patent: 3687287 (1972-08-01), Gwilliam
patent: 3712209 (1973-01-01), Gwilliam
patent: 3713382 (1973-01-01), Gwilliam
patent: 3724663 (1973-04-01), Gwilliam
patent: 3753498 (1973-08-01), Gwilliam
patent: 3753499 (1973-08-01), Gwilliam
patent: 3756142 (1973-09-01), Gwilliam
patent: 3762560 (1973-10-01), Gwilliam
patent: 3782554 (1974-01-01), Gwilliam
patent: 3805961 (1974-04-01), Clark et al.
patent: 3837498 (1974-09-01), Ito
patent: 3974074 (1976-08-01), Purdey
patent: 4019984 (1977-04-01), Mohn
patent: 4116831 (1978-09-01), Keat
patent: 4146485 (1979-03-01), Broad
patent: 4172037 (1979-10-01), Golston
patent: 4214991 (1980-07-01), Broad
patent: 4300277 (1981-11-01), Clark
patent: 4334996 (1982-06-01), Broad
patent: 4366055 (1982-12-01), Gwilliam et al.
patent: 4447327 (1984-05-01), Clark
patent: 4496459 (1985-01-01), Rosaen
patent: 4507201 (1985-03-01), Wall et al.
patent: 4514298 (1985-04-01), Wall et al.
patent: 4525275 (1985-06-01), Ostlund
patent: 4530769 (1985-07-01), Wolter et al.
patent: 4657673 (1987-04-01), Kessler
patent: 4725356 (1988-02-01), Zievers et al.
patent: 4767534 (1988-08-01), Ziller
patent: 4769052 (1988-09-01), Kowalski
patent: 4789471 (1988-12-01), Wall et al.
patent: 4909937 (1990-03-01), Hoffmann et al.
patent: 5139672 (1992-08-01), Ohbayashi
patent: 5154825 (1992-10-01), Kupka
patent: 5198111 (1993-03-01), Davis
patent: 5312544 (1994-05-01), Kinney
patent: 5344565 (1994-09-01), Degen et al.
patent: 5624559 (1997-04-01), Levin et al.
patent: 5804072 (1998-09-01), Yang
patent: 6180002 (2001-01-01), Higgins
patent: 6833071 (2004-12-01), Duby
patent: 341 797 (1959-10-01), None
patent: 39 16745 (1990-11-01), None
patent: 0 827 767 (1998-03-01), None
patent: 2 507 496 (1982-12-01), None
patent: 1 477 702 (1977-06-01), None

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