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:
Aug. 23, 1983
Filed:
Dec. 12, 1980
William K Wallace, Barneveld, NY (US);
David A Giardino, Deerfield, NY (US);
Joseph R Groshans, Clinton, NY (US);
Chicago Pneumatic Tool Company, New York, NY (US);
Abstract
A method for monitoring torque and angle developed upon a fastener during fastener run-up and setting, which method utilizes successive area measurements under a torque-angle curve, said areas being compared at predetermined torque levels to provide an indication of whether or not the entire assembly operation satisfies established criteria. Auxiliary means may include tool stopping by automatic shut-off means, or tool stall, and read-out means in the form of a printed record, an alarm signal, e.g., flashing lights or sounding means, as well as marking of a fastener to indicate compliance with predetermined fastener assembly criteria.