Electronically indicating torque wrench

Details Electronically indicating torque wrench Electronically indicating torque wrench

1978-12-04

1981-01-13

Miller, Jr., George H.

Weighing scales

Combined

73139, 81477, 81467, G01G 1900, G01L 524, B25D 23142

Patent

active

042444349

ABSTRACT:
An electronically indicating torque wrench utilizes a variable frequency stress transducer to detect the level of torque applied by the wrench. The stress transducer is operatively coupled to an arm of the wrench, said arm having a mechanical stress that is a function of an applied torquing force. The output of the stress transducer is compared to a reference whose calibration corresponds to desired torque settings. An indicator provides audible and visual indications when the applied torque equals the desired value.

REFERENCES:
patent: 1958326 (1934-05-01), Whitton et al.
patent: 3103984 (1963-09-01), Ellis et al.
patent: 3970155 (1976-07-01), Otto
patent: 3995477 (1976-12-01), Almond
patent: 4073187 (1978-02-01), Ardeef

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