Valved oil pan plug

Details Valved oil pan plug Valved oil pan plug

1988-04-04

1989-02-28

Chambers, A. Michael

Valves and valve actuation

With correlated flow path

Tank

251351, 137327, F16K 5100

Patent

active

048078476

ABSTRACT:
A drain plug for draining oil from vehicle oil pans including a body having a threaded stem for permanently attaching the body to the pan threaded drain hole, a valve threaded into the body includes a conical seal surface seating against a conical valve seat within the body bore. The valve includes an axial bore having inlet ports receiving the pan oil upon the valve seat disengaging from the body seat wherein draining of the oil can be accomplished by rotating the valve relative to the body without removal of the valve from the body. Torque transmitting wrench flats defined on the body and valve are sufficiently spaced apart to prevent simultaneous accidental loosening of the body in the pan drain hole.

REFERENCES:
patent: 541633 (1895-06-01), Schoonmaker
patent: 2823699 (1958-02-01), Willis
patent: 3727638 (1973-04-01), Zaremba, Jr. et al.
patent: 4445530 (1984-05-01), Meixell
patent: 4470577 (1984-09-01), Warwick

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