Oil filter for engines, transmissions or automatic...

Details Oil filter for engines, transmissions or automatic... Oil filter for engines, transmissions or automatic...

2007-05-15

2007-05-15

Cecil, Terry K. (Department: 1723)

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Fluid pressure responsive by-pass

C210S130000, C210S149000, C210S171000, C236S09300A, C236S10100B

Reexamination Certificate

active

10182149

ABSTRACT:
Oil filter for engines, transmissions or automatic transmissions, said oil filter being integrated in an oil pan, at least one bypass valve being arranged on the oil filter, the bypass valve containing a spring whose spring resistance increases with increasing temperature, said spring opening and closing an opening of the bypass valve with the aid of a closing lid.

REFERENCES:
patent: 2158512 (1939-05-01), Layte et al.
patent: 3056501 (1962-10-01), Thorman et al.
patent: 3773144 (1973-11-01), Hummel
patent: 4181611 (1980-01-01), Rubenstein et al.
patent: 4783271 (1988-11-01), Silverwater
patent: 4915852 (1990-04-01), Tomlinson
patent: 5934241 (1999-08-01), Von Esebeck et al.
patent: 5984195 (1999-11-01), Benedict
patent: 6039030 (2000-03-01), Robinson et al.
patent: 6294083 (2001-09-01), Lee et al.
patent: 197 35 444 (1999-01-01), None
International Search Report for International Application No. PCT/EP00/12248, dated Mar. 27, 2001, published on Jul. 19, 2001 under No. WO 01/55563.

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