Electronic torque wrench with tactile indication

Details Electronic torque wrench with tactile indication Electronic torque wrench with tactile indication

1989-10-13

1990-09-25

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Responsive to torque on work

B25B 23144

Patent

active

049585410

ABSTRACT:
An electronic torque wrench has a hollow handle portion in which are disposed a DC motor mechanically coupled to the handle portion with a mass eccentrically mounted on its shaft, a control circuit for the motor and a battery for powering the motor and the control circuit. A strain sensor on the wrench produces an output signal when the torque applied to a workpiece equals or exceeds a predetermined torque level for causing the control circuit to actuate the motor to vibrate the handle portion and provide a tactile indication to the user.

REFERENCES:
patent: 3546933 (1970-12-01), Grabovac
patent: 3970155 (1976-07-01), Otto
patent: 4112749 (1978-09-01), Smith
patent: 4244434 (1981-01-01), Wilson
patent: 4314490 (1982-02-01), Stone
patent: 4328709 (1982-05-01), Schramm
patent: 4558601 (1985-12-01), Stasiek et al.
patent: 4608872 (1986-12-01), Mayer et al.

Affiliated with

Also associated with

Rating

Electronic torque wrench with tactile indication does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-323625