The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 2007
Filed:
Apr. 13, 2006
John L. Reynertson, Jr., Geneva, IL (US);
John L. Reynertson, Jr., Geneva, IL (US);
Ryeson Corporation, Franklin Park, IL (US);
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.