Device for draining engine oil

Lubrication – Automobile crank and gear case service

Patent

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Details

251294, 251144, F16C 314

Patent

active

057276528

ABSTRACT:
A device for draining engine oil in a DIY manner including an oil drain screw bolt, a valve, an oil drain tube, a spring element, and a control cable. The screw bolt has a cylindrical rod portion having a drain hole at the center, and a head portion having an oil outlet at one side communicating with the drain hole. The outer end of the oil outlet forms a threaded section of a larger diameter. The head portion is provided with a through hole in a direction perpendicular to the oil outlet. The valve is provided with a rod at a front end for receiving a spring. A front end of the rod is connected to a pull strap. The valve is locked in the through hole of the screw bolt by a sunk-head screw. The oil drain tube has a rotary connecting portion at a front end for locking in the threaded section of the oil outlet. A control valve is provided at a rear end of the oil drain tube. The control cable forms a hook portion at a front end thereof and is passed through a small duct at one side of the oil drain tube. Engine oil may be drained using the device, without the need to remove the screw bolt from the engine.

REFERENCES:
patent: 1995174 (1935-03-01), Gerrard et al.
patent: 3477459 (1969-11-01), Schossow
patent: 3871483 (1975-03-01), Espinosa et al.
patent: 3954250 (1976-05-01), Grace
patent: 4086981 (1978-05-01), Mitsui
patent: 4905643 (1990-03-01), DeGrazia, Jr.
patent: 4907676 (1990-03-01), Shirdavani

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