Adjustable wrench

Details Adjustable wrench Adjustable wrench

1985-01-11

1986-07-08

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Flexible

81 343, 81 652, B25B 1352

Patent

active

045986150

ABSTRACT:
An adjustable wrench for use in rotating screw-on oil filters and the like. The wrench has a strap for encircling the filter, and a lever for tightening the strap about the filter. The lever has a first end attached to a first end of the strap, an intermediate portion attached to the second end of the strap, and a second end for movement between a first position in which the strap is loose about the filter and a second position in which the strap is tight about the filter. The second end of the lever being located substantially at the center of a circle defined by the strap when in the second position.

REFERENCES:
patent: 1143126 (1915-06-01), Martin
patent: 3838615 (1974-10-01), McFarland et al.
patent: 4095492 (1978-06-01), Makela
patent: 4114481 (1978-09-01), Kowalczyk
patent: 4145938 (1979-03-01), Laird
patent: 4307633 (1981-12-01), Leonard et al.

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