Hand operated tool driver

Details Hand operated tool driver Hand operated tool driver

1993-11-15

1994-11-15

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 581, B25B 1700

Patent

active

053637267

ABSTRACT:
Improved manually-powered drive tool means comprising a generally pistol-shaped housing having a barrel portion with a hand grip extending substantially perpendicularly from one end of the barrel portion, a drive shaft rotatably mounted in the barrel portion and projecting from the end of the barrel portion opposite the hand grip, a trigger lever pivotally connected adjacent the lower end of the hand grip, an arcuate drive gear connected to the upper end of the trigger lever for movement therewith, a differential gear means for coupling the drive gear to rotate the socket drive shaft, and reversing means for selectably connecting the trigger lever to rotate the differential gear means in a selected direction.

REFERENCES:
patent: 3132549 (1964-05-01), Lee
patent: 3519046 (1970-07-01), Pierce
patent: 3941017 (1976-03-01), Lenker et al.

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