Electronic torsional tool

Details Electronic torsional tool Electronic torsional tool

2008-07-01

2008-07-01

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

C073S862230, C073S862260

Reexamination Certificate

active

07392712

ABSTRACT:
An electronic torsional tool includes a main body, and a strain gauge mounted in the main body. The main body is provided with an opening to enhance flexibility of the main body and to increase deformation of the strain gauge. The opening is extended through the handle portion and the drive portion of the main body, thereby enhancing deformation of the main body, and thereby increasing deformation (or distortion) of the strain gauge, so as to detect and obtain the torsion values exactly.

REFERENCES:
patent: 4535659 (1985-08-01), Yang
patent: 4864841 (1989-09-01), Heyraud
patent: 4958541 (1990-09-01), Annis et al.
patent: 4982612 (1991-01-01), Rittmann
patent: 6784799 (2004-08-01), Hsien
patent: 6940417 (2005-09-01), Hsien
patent: 2002/0178873 (2002-12-01), Hsieh
patent: 2004/0261542 (2004-12-01), Hsien

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