Open-end ratchet wrench

Details Open-end ratchet wrench Open-end ratchet wrench

1992-11-05

1993-10-05

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

81 60, 81186, 81418, B25B 1300

Patent

active

052494870

ABSTRACT:
An open-end ratchet wrench is shown which has a handle and a generally C-shaped head at one end of the handle providing a pair of open-ended jaws with spaced confronting jaw faces. The jaws are provided in the form of a plurality of rotatable toothed gears which are presized and prealigned to engage and rotate about the angular side surfaces of a nut or bolt head to be received between the jaws for turning. A ratchet mechanism is also provided for selectively preventing rotation of at least one of the gears in one direction.

REFERENCES:
patent: 847251 (1907-03-01), Hodson
patent: 2550010 (1951-04-01), Kavalar
patent: 2712259 (1955-07-01), Cowell
patent: 3165015 (1965-01-01), Hinrichs
patent: 4276790 (1981-07-01), Davis
patent: 4554847 (1985-11-01), DeSantis
patent: 4644830 (1987-02-01), Bailey et al.
patent: 4770070 (1988-09-01), Sowers
patent: 5018412 (1991-05-01), Wylie, III

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