Cylindrical pin wrench

Details Cylindrical pin wrench Cylindrical pin wrench

1983-08-22

1985-05-21

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

81 44, 81 52, 81438, B25B 1500

Patent

active

045178640

ABSTRACT:
A wrench for a cylindrical pin and the like adapted for connective mounting to, supporting, handling, maneuvering and rotating the pin, the pin having a wrench engageable hole therethrough, the wrench including a frictionally operable curvilinear pin engaging recessed portion, an end operating handle portion, and a pin hole engaging end, the wrench, when engaged to the pin with the hole operatively interengaged, being operable for positionally, maneuverably and rotatably moving the pin.

REFERENCES:
patent: 337061 (1886-03-01), Higgins et al.
patent: 1392728 (1921-10-01), Westman et al.
patent: 1618889 (1927-02-01), Ruping
patent: 2544492 (1951-03-01), Downing
patent: 2943665 (1960-07-01), Cincel
patent: 4094350 (1978-06-01), Jacobson

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