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:
Nov. 29, 1977
Filed:
Sep. 05, 1975
Applicant:
Inventor:
Marc Heyraud, Les Geneveye-sur-Coffrane, CH;
Assignee:
Portescap, La Chaux-de-Fonds, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310177 ; 310266 ;
Abstract
The rotor of an electric direct current rotating machine has at least one winding which cooperates with a stationary magnetic circuit. The winding is formed of several sections connected in series. The respective opposite ends of each section are connected to adjacent segments of a commutator associated with the winding. The sections are arranged on the rotor in such a manner that portions of different adjacent sections are disposed concurrently in the commutation zone so that currents flow through these portions in opposite directions. The invention finds application in particular to direct current motors and to motor-generators.