Socket spanner having a nut retaining device

Details Socket spanner having a nut retaining device Socket spanner having a nut retaining device

1996-06-28

1998-03-10

Meislin, D.S.

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

81452, B25B 1302

Patent

active

057248729

ABSTRACT:
A socket spanner having U-shaped elastic body and a fitting end configured to receive a nut. The fitting hole of the fitting end contains a pair of grooves respectively provided on two opposite inner walls thereof for engaging the U-shaped elastic body. The fitting hole further contains a circular slot located in an outer end of an inner wall of the fitting hole. The U-shaped elastic body includes an arcuate head portion and two arms, the two arms are received by the pair of grooves, respectively, of the fitting hole and at least one of the two arms is provided with a protruded portion capable of retaining a nut held in the fitting hole. At least one of the two arms is provided at a free end thereof with a curved or hooked portion engageable with the circular slot, so as to retain the U-shaped elastic body in the fitting hole.

REFERENCES:
patent: 271549 (1883-01-01), True
patent: 2304271 (1942-12-01), Merriman et al.
patent: 2549397 (1951-04-01), Sparks
patent: 3665791 (1972-05-01), Carr
patent: 3835737 (1974-09-01), Carr
patent: 4787278 (1988-11-01), Bononi

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