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. 18, 1981
Filed:
Jun. 12, 1979
Gabriele Gallizio, Turin, IT;
Giovanni Balestrino, Orbassano, IT;
Centro Richerche Fiat S.p.A., Orbassano, IT;
Abstract
In order to determine whether the screwing home of a threaded element, such as a screw, by a power tool has been acceptably executed, the number of revolutions undergone by the threaded element during the screwing operation is measured as a function of time. The revolution-time function derived for the screwing operation is compared with a reference function corresponding to an acceptable screwing operation. The comparison shows up unacceptable screwing operations and can be performed both visually and by a microcomputer. Apparatus for effecting such monitoring of screwing operations includes sensing means for measuring rotation of the output shaft of the power tool and circuit means for processing the output of the sensing means and effecting the comparison with the reference function.