Screwdriver with insulated shaft and polygonal driving head

Details Screwdriver with insulated shaft and polygonal driving head Screwdriver with insulated shaft and polygonal driving head

1988-08-01

1989-08-22

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

81 581, 811772, 81463, B25B 1500

Patent

active

048585041

ABSTRACT:
A screwdriver with insulated shaft and polygonal driving head comprising an insulated block disposed between a shaft and a polygonal head. A handle of insulated material is engaged on the shaft, so that the screwdriver accordingly is insulated and an operator of the screwdriver can be protected from electric shock.

REFERENCES:
patent: 2672066 (1954-03-01), Sandrock et al.
patent: 3343577 (1967-09-01), Wagner
patent: 4212336 (1980-07-01), Smith
patent: 4437365 (1984-03-01), Taari
patent: 4541314 (1985-09-01), Korkowski

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