Oil extractor for vehicle engines and the like

Details Oil extractor for vehicle engines and the like Oil extractor for vehicle engines and the like

1976-08-04

1978-03-14

Schwadron, Martin P.

Valves and valve actuation

With means for blocking or disabling actuator

Released by non-valving actuator motion

137315, 251214, 251286, 251288, 251315, F16k 3500

Patent

active

040787630

ABSTRACT:
This invention relates to a shut-off valve type oil extractor that can be screwed into an oil pan in a vehicle engine or the like, and more particularly it relates to an oil extractor of the said type which is characterized particularly in that it is locked in a shut-off state so that it won't be inadvertently opened by mechanical vibration caused during running of the vehicle.

REFERENCES:
patent: 1973418 (1934-09-01), Sibley
patent: 2035762 (1936-03-01), Roberts
patent: 2118232 (1938-05-01), Roberts
patent: 2194714 (1940-03-01), Mueller
patent: 2665879 (1954-01-01), Housekeeper et al.
patent: 3112758 (1963-12-01), Norton
patent: 3764102 (1973-10-01), Shopsky

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