Tools – Wrench – screwdriver – or driver therefor – Responsive to torque on work
Reexamination Certificate
2006-08-01
2006-08-01
Thomas, David B. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Responsive to torque on work
C081S483000, C073S862230
Reexamination Certificate
active
07082865
ABSTRACT:
A digital torque wrench is disclosed having a transducer beam with a reduced thickness web therein. At least one strain gauge sensor is mounted to the internal web to measure the shearing stress within the web as the wrench is rotated. By using such a reduced thickness web, mounting the sensors in opposed orientations, mounting the transducer beam to the torque wrench handle using first and second longitudinal flanking pins, and providing the transducer beam in a tapered shape, the resulting measurement of the torque wrench is very accurate. Moreover, a rotational interface module with digital display is provided to facilitate reading of the display by the user.
REFERENCES:
patent: 4982612 (1991-01-01), Rittmann
patent: 5503028 (1996-04-01), Brihier
patent: 5911801 (1999-06-01), Fravalo et al.
patent: 5960685 (1999-10-01), Shyong-Chuan et al.
patent: 5979273 (1999-11-01), Walton
patent: 6070506 (2000-06-01), Becker
patent: 6076439 (2000-06-01), Dzieman
patent: 6119562 (2000-09-01), Jenkins
patent: 6155147 (2000-12-01), Dzieman
patent: 6167788 (2001-01-01), Schönberger et al.
patent: 6253626 (2001-07-01), Shoberg et al.
patent: 6253644 (2001-07-01), Duquette
patent: 6276243 (2001-08-01), Jenkins
patent: 6314846 (2001-11-01), Winick
patent: 6463811 (2002-10-01), Putney
patent: 6463834 (2002-10-01), Kemp et al.
patent: 6526853 (2003-03-01), Jenkins
patent: 2003/0094081 (2003-05-01), Becker et al.
Marshall & Gerstein & Borun LLP
Ryeson Corporation
Thomas David B.
LandOfFree
Digital torque 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 Digital torque wrench, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital torque wrench will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3713468