Torque limiting tool

Details Torque limiting tool Torque limiting tool

1992-02-20

1993-08-31

Chilcot, Jr., Richard E.

Measuring and testing

Dynamometers

Responsive to torque

7386221, 81474, B25B 2314

Patent

active

052398757

ABSTRACT:
A torque-limiting tool which comprises a drive member and a driven member. A plurality of balls extends from one of the members; a corresponding plurality of cylinders extends from the other. The relationship of the drive member and the driven member is such that when a torque is applied to the drive member, the balls and the cylinders engage and drive the driven member until a predetermined torque is applied. Once this torque is attained, the balls and cylinders mutually rotate so as to release the driven member. A calibration screw adjusts the overlap between the balls and cylinders to calibrate the limiting torque.

REFERENCES:
patent: 2734412 (1956-02-01), Orner
patent: 2897932 (1959-08-01), Morgan
patent: 2984133 (1961-05-01), Livermont
patent: 3001430 (1961-09-01), Cranford
patent: 3069191 (1962-12-01), DePew
patent: 3080900 (1963-03-01), Rosenberg
patent: 3099177 (1963-07-01), Kostka
patent: 3119247 (1961-01-01), Grabovac
patent: 3270594 (1966-09-01), Grabovac
patent: 3613751 (1971-10-01), Juhasz
patent: 3890859 (1975-06-01), Grabovac
patent: 4063474 (1977-12-01), Klopping
patent: 4223555 (1980-09-01), Alexander

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