Tightening torque measuring unit

Details Tightening torque measuring unit Tightening torque measuring unit

2011-08-09

2011-08-09

Noori, Max (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

Reexamination Certificate

active

07992455

ABSTRACT:
A tightening torque measuring unit capable of reducing errors with respect to either a clockwise or counterclockwise direction as soon as possible is provided. A tightening torque measuring unit10, installed in a tightening device, includes a torque sensor12that detects a tightening torque and an amplifier that amplifies an output from the torque sensor12. The amplifier40or42applies a different gain to the output from the torque sensor depending on whether the tightening direction of the tightening apparatus is clockwise or counterclockwise.

REFERENCES:
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patent: 4959797 (1990-09-01), McIntosh
patent: 5589644 (1996-12-01), Becker et al.
patent: 6070506 (2000-06-01), Becker
patent: 2005/0183513 (2005-08-01), Hsien
patent: 0 100 023 (1984-02-01), None
patent: 2007-111797 (2007-05-01), None
patent: 00/05037 (2000-02-01), None

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