Sixty-degree ratchet wrench

Details Sixty-degree ratchet wrench Sixty-degree ratchet wrench

1997-07-22

1999-03-09

Scherbel, David A.

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

81186, B25B 1302

Patent

active

058786368

ABSTRACT:
An open-end ratcheting-type wrench for use in driving a hexagonal nut has a handle and a wrench head that is joined to the handle. The wrench head has upper and lower jaws that are rigidly joined together by a 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 faces are configured to prevent corner contact with the nut so that the corners are not rounded off. A lock face is provided on the wrench to prevent the removal of the wrench from the nut during use. The lock face has a concave arcuate surface to allow ratcheting.

REFERENCES:
patent: 574622 (1897-01-01), Olden
patent: 2652735 (1953-09-01), Wilder
patent: 2671368 (1954-03-01), Diebold
patent: 3921476 (1975-11-01), Evans
patent: 4889020 (1989-12-01), Baker
patent: 5381710 (1995-01-01), Baker
patent: 5406868 (1995-04-01), Foster
patent: 5551322 (1996-09-01), Mikic et al.
patent: 5582083 (1996-12-01), Baker

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