Tools – Wrench – screwdriver – or driver therefor – Rigid jaws
Patent
1998-10-21
2000-12-12
Scherbel, David A.
Tools
Wrench, screwdriver, or driver therefor
Rigid jaws
811243, 81186, B25B 1302
Patent
active
06158309&
ABSTRACT:
An ratcheting-type wrench for use in driving a hexagonal nut having a wrench head. The wrench head has upper and lower jaw portions that are rigidly joined by at least one web. The jaws have several faces that allow the wrench to be ratcheted about the nut to different drive positions without removing the wrench from the nut. The jaws have two drive faces that allow the wrench to drive the nut with the wrench tips in an open-ended embodiment, and in both an open-ended and a box-ended embodiment allow the wrench to ratchet in 30 degree increments. The faces are configured to prevent corner contact with the nut so that the corners are not rounded off. A lock face is provided to prevent the removal of the wrench from the nut while applying torque.
REFERENCES:
patent: 2652735 (1953-09-01), Wilder
patent: 3881377 (1975-05-01), Evans et al.
patent: 4889020 (1989-12-01), Baker
patent: 5239899 (1993-08-01), Baker
patent: 5381710 (1995-01-01), Baker
patent: 5582083 (1996-12-01), Baker
Bradley James E.
David Baker Inc.
Ojini Anthony
Scherbel David A.
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