Apparatus and method for determining torque, presenting digital

Details Apparatus and method for determining torque, presenting digital Apparatus and method for determining torque, presenting digital

1986-11-12

1988-12-20

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Responsive to torque on work

73708, 73761, 81469, B25B 2100

Patent

active

047918381

ABSTRACT:
Apparatus and a method are presented for determining the torque load applied to a fastening element by a fluid powered wrench, and displaying a digital readout of the torque. The operating pressure of the wrench, after compensation for the temperature of the pressure transducer, is converted to a torque measurement by a programmed microprocessor and the torque value is displayed on a digital readout. The system is useable with and adjusts for wrenches of several sizes by an input selector switch connected to the microprocessor. Apparatus and method are also presented for automatic cycling of a ratcheting hydraulic powered wrench and automatic termination of the tightening process when a predetermined torque has been delivered to the fastening element.

REFERENCES:
patent: 3745/820 (1973-07-01), Weiner
patent: 4211120 (1980-07-01), Tambini
patent: 4244245 (1981-01-01), Wallace
patent: 4294110 (1981-10-01), Whitehouse
patent: 4402052 (1983-08-01), Stone
patent: 4426887 (1984-01-01), Reinholm
patent: 4444273 (1984-04-01), Ruby

Affiliated with

Also associated with

Rating

Apparatus and method for determining torque, presenting digital does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for determining torque, presenting digital , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for determining torque, presenting digital will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1903994