Adjustable head for a wrench

Details Adjustable head for a wrench Adjustable head for a wrench

2005-02-01

2005-02-01

Meislin, D. S. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

C081S177700, C081S177900, C403S091000

Reexamination Certificate

active

06848345

ABSTRACT:
A wrench includes a handle, a head having a pivotal portion, and a retaining mechanism for retaining the head in the desired angular position relative to the handle. The pivotal portion of the head includes a fore lug and a rear lug that are located with reference to a ratcheting direction of the handle. The handle has an engaging portion pivotally received in an opening between the lugs. Teeth are defined in an arcuate outer surface section of the fore lug. The thickness of the rear lug is not reduced, avoiding damage to the torque-bearing section in the pin hole of the rear lug.

REFERENCES:
patent: 5916339 (1999-06-01), Dumont
patent: 6148698 (2000-11-01), Hsieh
patent: 6745650 (2004-06-01), Chang

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