Tools – Wrench – screwdriver – or driver therefor – Responsive to torque on work
Patent
1988-06-09
1989-05-09
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Responsive to torque on work
81478, B25B 23142
Patent
active
048278130
ABSTRACT:
A torque wrench for tightening a threaded fastener, comprising a torque transmitting driver and having a fastener engaging tip and a gauge responsive to bending of the rod for providing an amplified indication of the amount of applied torque.
REFERENCES:
patent: 2934946 (1960-05-01), Engquist
patent: 3283620 (1966-11-01), Bailey
patent: 3308690 (1967-03-01), LaPointe
patent: 3611796 (1971-10-01), Hayward
patent: 4314490 (1982-02-01), Stone
patent: 4664001 (1987-05-01), Denman
Ruland Manufacturing Company, Inc.
Smith James G.
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