Oil filter removal tool

Details Oil filter removal tool Oil filter removal tool

1991-04-25

1993-05-04

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

81446, 81448, B25B 2300

Patent

active

052071316

ABSTRACT:
An oil filter removal tool for removing an oil filter contained within the oil pan of an internal combustion engine is disclosed. The tool has a pair of outwardly engaging jaws, a rotatable central socket drive element, means for connecting the outwardly engaging jaws to cooperatively engage the central socket drive element, and means for outwardly biasing the jaws. The outwardly engaging jaws each have a substantially semicircular outer wall which has means for engaging an oil pan filter cap. The outwardly engaging jaws each further have an inner wall which has a central polygonal surface and retaining means for retaining the central socket drive element within the jaws. The central socket drive element has an upper portion and a lower polygonal base which has a plurality of drive walls. Thus, a socket drive is receivable in the central socket drive element, the element thus being rotatable, the drive walls being operatively associated with the inner wall central polygonal surfaces of the jaws, the jaws being outwardly moveable, thereby permitting the jaws to engage an oil pan filter cap by rotation of the central socket drive element.

REFERENCES:
patent: 148629 (1874-03-01), Smith
patent: 548696 (1895-10-01), Carver
patent: 570933 (1896-11-01), Kleckner
patent: 598783 (1898-02-01), Holford
patent: 3296900 (1967-01-01), Behnke
patent: 4335632 (1982-06-01), Irwin et al.

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