Spanner with enhancing structure for positioning electronic...

Details Spanner with enhancing structure for positioning electronic... Spanner with enhancing structure for positioning electronic...

2007-03-06

2007-03-06

Wilson, Lee D. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Responsive to torque on work

C081S478000, C081S177100

Reexamination Certificate

active

11036702

ABSTRACT:
A spanner with an enhancing device for positioning electronic devices installed therein; a spanner having a holding portion; at least one end of the holding portion having a driving portion; each of the connection of the driving portion and the holding portion having a strain gauge; a receiving space before formed in the holding portion; an enhancing rib being installed in the receiving space; each of an upper side and lower side of the receiving space of the holding portion having an electric device; the two electric devices being placed at two sides of the enhancing rib; the electric devices being connected to the respective strain gauges for measuring changes of resistances of the of the strain gauges as forces are applied to the strain gauges so as to calculate the twisting forces and display the values of the twisting forces.

REFERENCES:
patent: 4535659 (1985-08-01), Yang
patent: 6463811 (2002-10-01), Putney

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