Box end wrench with stop means to hold down the bolt or nut to b

Details Box end wrench with stop means to hold down the bolt or nut to b Box end wrench with stop means to hold down the bolt or nut to b

1997-03-19

1999-02-02

Scherbel, David A.

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

81186, 811251, B25B 1300

Patent

active

058650741

ABSTRACT:
A box end wrench having a split binding ring mounted in an annular groove at internal angles of a box of a first box end thereof for stopping the wrench from escaping out of the bolt or nut to be turned with the first box end, and a plurality of smoothly curved raised Portions at internal angles of a box of a second box end thereof for stopping the wrench from escaping out of the bolt or nut to be turned with the second box end.

REFERENCES:
patent: 1384655 (1921-07-01), Allmon
patent: 2671368 (1954-03-01), Diebold
patent: 2727418 (1955-12-01), Moon
patent: 2769360 (1956-11-01), Cottrell et al.
patent: 2774259 (1956-12-01), Caulkins
patent: 2801561 (1957-08-01), Bonner
patent: 4139036 (1979-02-01), Reagan et al.
patent: 4520697 (1985-06-01), Moetteli
patent: 4699029 (1987-10-01), Kelly et al.
patent: 5136902 (1992-08-01), Ma
patent: 5218891 (1993-06-01), Olson et al.
patent: 5230263 (1993-07-01), Kwaka
patent: 5307713 (1994-05-01), White

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