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. 24, 1980
Filed:
Sep. 05, 1973
Applicant:
Inventors:
Danielle Regnier, Besancon, FR;
Claude Oudet, Besancon, FR;
Assignee:
Portescap, La-Chaux-de-Fonds, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K / ; G04C / ; H02K / ;
U.S. Cl.
CPC ...
368 62 ; 318138 ; 318430 ; 318696 ; 368 76 ; 368 28 ;
Abstract
Device for controlling a monophase rotary step-by-step motor supplying electric control pulses to the winding of the motor, comprising means for detecting the variation of the current passing through the motor winding at each control pulse, this detection means including means of interrupting the control pulse when a minimum appears in the current passing through the winding.