Open end ratchet wrench

Details Open end ratchet wrench Open end ratchet wrench

2007-07-31

2007-07-31

Meislin, D. S. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S060000

Reexamination Certificate

active

11406033

ABSTRACT:
A ratchet wrench includes a generally open head member and a handle connected thereto. A pair of generally C-shaped collars are hingedly connected to the head member for selectively closing and opening it and a locking tab provided for selectively locking the collars in a position for closing the head member. A pair of semi-circular inserts are disposed within the collars and form a socket axially disposed within the head member and further form a peripheral ratchet wheel. A ratchet pawl engages the ratchet wheel for facilitating ratcheting rotation. The wrench may be adapted with an electrical drive for operating the ratchet wheel.

REFERENCES:
patent: 2294510 (1942-09-01), Nakano
patent: 2982162 (1961-05-01), Golden
patent: 4095494 (1978-06-01), Castoe
patent: 4258595 (1981-03-01), Ramsey
patent: 4441387 (1984-04-01), Hendricks
patent: 4562757 (1986-01-01), Furey
patent: 5277087 (1994-01-01), Wilson et al.
patent: 5454283 (1995-10-01), Stefano
patent: 5501124 (1996-03-01), Ashby
patent: 5768960 (1998-06-01), Archuleta
patent: 6050165 (2000-04-01), Hall
patent: 6138533 (2000-10-01), Turtle
patent: 6286396 (2001-09-01), Johnson

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