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. 05, 1986
Filed:
Feb. 12, 1981
Tadashi Fukami, Sagamihara, JP;
Oken Seiko Co., Ltd., Tokyo, JP;
Abstract
A rotor winding of air-core disc shape is formed by winding an insulation-coated conductor so as to enclose a yoke of disc shape with only minor gaps at the outside of the yoke. The conductor of this rotor winding extends in the radial direction through the vicinity of the center, and is continuously wound, the turns being successively shifted in the tangential direction. The rotor is composed of the rotor winding, a rotor shaft fixed on this center, and a commutator. A permanent magnet is provided in such a position as opposes the yoke through the plane of the rotor winding of air-core disc shape. This magnet has at least a pair of magnet poles distributed to the opposite position against the rotor shaft, and each magnet pole supplies reverse magnet flux to the opposing yoke. The yoke, the magnet, and a brush contacted the commutator are mounted on the motor case, and the rotor is supported to the motor case so as to be rotated freely.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile