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:
Sep. 02, 1980
Filed:
Mar. 08, 1978
Yoshinori Kohzai, Hino, JP;
Shigeaki Oyama, Hachioji, JP;
Fujitsu Fanuc Limited, , JP;
Abstract
A direct current motor having interpoles mounted therein. The motor comprises a circular-shaped yoke, two main magnetic poles equidistantly disposed inside of the yoke and with their polarities different from each other, an armature, having armature windings wound thereon, which is actuated by an electromotive force caused by the main magnetic poles and which is rotated in the magnetic field generated by the main magnetic poles, and interpoles which are disposed at positions located between the two main magnetic poles so as to face the armature windings. Each of the interpoles comprises three small poles which are disposed inside of the yoke and are magnetically insulated from the yoke. As a result of this construction magnetic circuits are formed between the adjacent two small poles of each interpole and the armature.