Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Fluid pressure responsive
Patent
1994-08-10
1995-10-17
Savage, Matthew O.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Fluid pressure responsive
210130, 210315, 210438, 210440, 2105021, 210DIG5, B01D 2714
Patent
active
054587670
ABSTRACT:
A filter element for a fuel filter includes an outer, coalescing filter media and an inner, water-absorbing filter media. The outer media normally filters or separates particles from the fuel system and coalesces water in the fuel. As the outer media degrades through use and water penetrates to the inner media, the inner media absorbs the water to act as a back-up for the outer filter media. As the inner media absorbs water, the inner media expands to restrict the fuel flow therethrough. At a predetermined pressure differential across the inner media, a by-pass device in the inner filter media opens or otherwise allows fluid from the outer filter media to bypass the inner filter media. Although the by-pass device provides a fluid path around the inner media, the outer media maintains its particle filtration efficiency of the fuel at a high level. Further, the structure of the filter element is such that the outer media and inner media maintain water separation at an acceptable level, even when the outer media degrades and the inner media reaches saturation, at least until the spent filter element can be replaced.
REFERENCES:
patent: 1407763 (1922-02-01), Langston
patent: 1468906 (1923-09-01), Inman
patent: 1746336 (1930-02-01), Breer
patent: 2071529 (1937-02-01), Howard
patent: 2431782 (1947-12-01), Walton et al.
patent: 2858026 (1958-10-01), Lorimer
patent: 2998138 (1961-08-01), Mould et al.
patent: 3040894 (1962-06-01), Pall
patent: 3056503 (1962-10-01), Roosa
patent: 3105042 (1963-09-01), Roosa
patent: 3229817 (1966-01-01), Pall
patent: 3232437 (1966-02-01), Hultgren
patent: 3270884 (1966-09-01), Bremer
patent: 3331509 (1967-07-01), Gray, Jr.
patent: 3363762 (1968-01-01), Ensign
patent: 3529727 (1970-09-01), Bernhard
patent: 3931011 (1976-01-01), Richards et al.
patent: 4035306 (1977-07-01), Maddocks
patent: 4038189 (1977-07-01), Dison et al.
patent: 4052307 (1977-10-01), Humbert, Jr.
patent: 4091263 (1978-05-01), Richards et al.
patent: 4094791 (1978-06-01), Conrad
patent: 4139468 (1979-02-01), Rosaen
patent: 4246109 (1981-01-01), Manders
patent: 4322290 (1982-03-01), Carl
patent: 4437986 (1984-03-01), Hutchins et al.
patent: 4477345 (1984-10-01), Szlaga, Jr.
patent: 4588500 (1986-05-01), Sprenger et al.
patent: 4619764 (1986-10-01), Church et al.
patent: 4732671 (1988-03-01), Thornton et al.
patent: 4740299 (1988-04-01), Popoff et al.
patent: 4787949 (1988-11-01), Cole et al.
patent: 4836923 (1989-06-01), Popoff et al.
patent: 4906365 (1990-03-01), Baumann et al.
patent: 4976852 (1990-12-01), Janik et al.
patent: 5017285 (1991-05-01), Janik et al.
patent: 5020610 (1991-06-01), Lyon et al.
patent: 5084170 (1992-01-01), Janik et al.
patent: 5244571 (1993-09-01), Church et al.
Hunter Christopher H.
Parker-Hannifin Corporation
Savage Matthew O.
LandOfFree
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