Torque-indicating wrench

Details Torque-indicating wrench Torque-indicating wrench

2005-08-16

2005-08-16

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

C073S862191

Reexamination Certificate

active

06928885

ABSTRACT:
A torque-indicating wrench comprises a wrench body including a head to engage and turn a workpiece, and a stem having two outer longitudinal wall segments. A strainable body made of a material with an elasticity modulus smaller than that of the stem has a gage carrying major wall which is disposed on the outer longitudinal wall segment such that the strainable body is stretchable relative thereto. A restraining member is disposed to restrain the strainable body from moving away from the outer longitudinal wall segment while permitting a stretching movement of the strainable body. A strain gage unit is attached to the gage carrying major wall to detect change in resistance values corresponding to stretching deformation of the strainable body for processing by a processing circuit so as to obtain a value of torque applied to the workpiece.

REFERENCES:
patent: 3943761 (1976-03-01), Shoberg et al.
patent: 4006629 (1977-02-01), Barrett et al.
patent: 4558601 (1985-12-01), Stasiek et al.

Affiliated with

Also associated with

Rating

Torque-indicating wrench does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Torque-indicating wrench, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Torque-indicating wrench will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3523514