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. 09, 1987
Filed:
Apr. 05, 1985
Applicant:
Inventor:
Pierre Boillat, Meyriez, CH;
Assignee:
Sodeco-Saia AG, Murten, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318696 ; 318685 ; 368157 ;
Abstract
Circuitry for measuring the torque of a stepping motor is disclosed. The circuitry is based on the fact that the decay time of the current flowing through the stator coils is a function of the torque of the stepping motor.