Speed wrench

Details Speed wrench Speed wrench

1988-11-03

1990-12-04

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

U-crank arm

279 23R, 279 41R, 81 37, 811771, B25B 1300

Patent

active

049744771

ABSTRACT:
The speed wrench includes a plastic handle and a S-curve shaped shaft with a mount to receive tool driving or drilling inserts. The S-curve shaped shaft causes the axis of the tool to intersect the axis of the handle, thereby causing a cone-shaped pattern of rotation. The shaft permits the user to rotate the handle with wrist motion, thereby rotating the tool insert.

REFERENCES:
patent: 470687 (1892-03-01), Koelzer
patent: 508314 (1893-11-01), Hill
patent: 1642569 (1927-09-01), Winslow et al.
patent: 1752703 (1930-04-01), Simson
patent: 2224195 (1940-12-01), Parsons
patent: 2277961 (1942-03-01), Detmers
patent: 2605110 (1952-07-01), Blum
patent: 2712765 (1955-07-01), Knight, Jr.
patent: 2715926 (1955-08-01), Harris
patent: 3173462 (1965-03-01), Koeppel

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