Insertable strain gauge spanner

Details Insertable strain gauge spanner Insertable strain gauge spanner

2008-07-01

2008-07-01

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

C073S862220, C073S862240, C073S862250, C073S862260, C073S862230

Reexamination Certificate

active

11352345

ABSTRACT:
An insertable strain gauge spanner which comprises a spanner body having a rod body and a driving head insertable into the rod body; the rod body having a handle and an inserting opening at one end thereof; the inserting opening can be received the driving head; the rod body being installed with a strain gauge; a lower end of the rod body being formed as an inserting opening; the inserting opening being in contact with the strain gauge; thereby the twisting force from the driving head can be transferred to a sensing end of the strain gauge; the twisting force being displayed in a window of the strain gauge; and the driving head having an inserting end with a shape corresponding to that of the inserting opening; and the orientation of the driving head with respect to the rod body is adjustable.

REFERENCES:
patent: 4779494 (1988-10-01), Quach
patent: 6234051 (2001-05-01), Bareggi
patent: 6968759 (2005-11-01), Becker et al.
patent: 7047849 (2006-05-01), Lai
patent: 7111532 (2006-09-01), Wu
patent: 7182005 (2007-02-01), Hsieh
patent: 2007/0044599 (2007-03-01), Hsieh
patent: 2007/0062346 (2007-03-01), Hsieh

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