Oil filter wrench

Details Oil filter wrench Oil filter wrench

1993-02-26

1994-10-11

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

81 34, 811251, B25B 1300

Patent

active

053536665

ABSTRACT:
An improved filter wrench is shown for applying torque to a canister-type oil filter to engage and disengage the threaded end thereof from an engine block. The tool includes a wrench body having a larger and smaller aperture for reversibly receiving smaller and larger relatively sized filter canisters. A separate driver adapter engages the exterior of the wrench body when a filter canister is being received within the larger aperture and is itself received within the larger aperture when a filter canister is being received within the smaller aperture of the wrench body.

REFERENCES:
patent: 842039 (1907-01-01), Walt
patent: 2746330 (1955-05-01), Pfetzing
patent: 3385141 (1968-05-01), Norman
patent: 4266452 (1981-05-01), Crist
patent: 4840094 (1989-06-01), Macor
patent: 4865727 (1989-09-01), Krauss
patent: 4867017 (1989-09-01), Holman
patent: 4982629 (1991-01-01), Germain
patent: 5048379 (1991-09-01), Gramera et al.
patent: 5148724 (1992-09-01), Rexford

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