Torque and angular displacement sensing in yield threshold contr

Details Torque and angular displacement sensing in yield threshold contr Torque and angular displacement sensing in yield threshold contr

1987-06-29

1989-04-25

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to torque

7386225, 81470, B23P 1906, B25B 23143

Patent

active

048236160

ABSTRACT:
The torque and angular displacement transducers in a yield threshold controlled wrench apparatus are relocated to reduce the problems encountered therewith from the harsh physical environment experienced by such transducers in conventional designs. In one preferred embodiment, both the torque and angular displacement transducers are located at completely remote locations from the movable elements of the wrench mechanism and are each housed in a conventional hydraulic fitting to be more readily replaceable for maintenance purposes, as compared to the transducers of conventional designs.

REFERENCES:
patent: 2836090 (1958-05-01), Ray
patent: 2973676 (1961-03-01), Nelson
patent: 4294110 (1981-10-01), Whitehouse
patent: 4620450 (1986-11-01), Yamaguchi

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