Oil filter cap with ball valve anti-sticking device

Details Oil filter cap with ball valve anti-sticking device Oil filter cap with ball valve anti-sticking device

2005-08-09

2005-08-09

Kim, Chong H. (Department: 3682)

Lubrication

Lubricators

Oil cup closure

C033S731000

Reexamination Certificate

active

06926121

ABSTRACT:
A cap for sealing an outer end of an oil filler tube of an engine where the oil filler tube has an inner end with ball valve having a float ball and mating valve seat for impeding any reverse flow of oil during engine operation. The cap includes a sealable plug mating the tube outer end; a rod extending from the plug toward the inner end of the tube; and a valve opening device mounted to the rod for dislodging the float ball from the valve seat.

REFERENCES:
patent: 1756976 (1930-05-01), Ehlers
patent: 3311984 (1967-04-01), Stux et al.
patent: 3662470 (1972-05-01), Sasgen
patent: 4124011 (1978-11-01), Saito et al.
patent: 4373548 (1983-02-01), Chou
patent: 4651428 (1987-03-01), Allaria et al.
patent: H438 (1988-03-01), Viksne et al.
patent: 4991434 (1991-02-01), Snow
patent: 5544419 (1996-08-01), Smeltzer
patent: 6279247 (2001-08-01), Neitzel
patent: 2275775 (1994-09-01), None

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