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:
Jan. 26, 1993
Filed:
May. 02, 1991
Troy W Livingston, Northbrook, IL (US);
Ryeson Corporation, Franklin Park, IL (US);
Abstract
Torque wrench testing apparatus and method that includes holding a torque wrench, applying a predetermined torque load to one end of the wrench while limiting movement of the other end of the wrench, and measuring the actual torque applied, for comparison with the reading on the wrench gauge. The essential feature of the invention resides in the idea of limiting the movement of the other wrench end by a pylon that is pivotally mounted so that when it engages a pivotally mounted wrench handle, the handle will stay coaxial to the one end of the wrench to avoid a handle end from contacting the wrench beam, which would cause a change in the working length of the wrench beam and result in an incorrect calculation of torque.