Quick drain crankcase drain plug

Details Quick drain crankcase drain plug Quick drain crankcase drain plug

1997-08-18

1999-06-01

Jeffery, John A.

Lubrication

Automobile crank and gear case service

184106, 1841053, 123196R, 403335, 24570, F16C 314

Patent

active

059080868

ABSTRACT:
A quick drain drain plug to replace the usual solid drain plug of a crankcase of an internal combustion engine includes a first circular member having an axis and a first opening therethrough. A threaded member is secured to and extends perpendicular from one circular surface of the first circular member having a channel therethrough coaxial of the axis in alignment with the first opening, the threaded member being threaded into the threaded oil drain of the crankcase. A valve closure member disposed on the other circular surface of the first circular member has a second opening therethrough coaxial of the axis in alignment with the first opening and the channel. A second circular member having a valve seat therein cooperates with the valve closure member to control draining oil from the crankcase. A first arrangement coupled to the first and second circular members hinges the second circular member to the first circular member to enable the valve seat to engage with and disengage from the valve closure member. A second arrangement releasably connects the second circular member to the first circular member to enable the valve seat to engage the valve closure member to hold oil in the crankcase and to disengage the valve seat from the valve closure member to enable draining oil from the crankcase without using tools.

REFERENCES:
patent: 903606 (1908-11-01), Pollock
patent: 3874478 (1975-04-01), Mantell, Jr.
patent: 4361310 (1982-11-01), Cummins
patent: 4512547 (1985-04-01), Balch
patent: 4694544 (1987-09-01), Chapman
patent: 4756349 (1988-07-01), Atkins
patent: 4970762 (1990-11-01), Oreck et al.
patent: 5188495 (1993-02-01), Jones, Jr.
patent: 5379496 (1995-01-01), Kravss
patent: 5655280 (1997-08-01), McCommon

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