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:
Mar. 12, 1996
Filed:
Feb. 10, 1993
Itsuki Bahn, Tokyo, JP;
Secoh Giken Inc., Tokyo, JP;
Abstract
The purpose of this invention is to supply people with a flat core-less direct-current motor of high output torque, high speed and high power efficiency. It is also a 3 phase flat core-less direct-current motor comprising a fan-shaped flat armature coils of alignment winding in which an included angle constituted by each of coil portions effective for producing a torque exceeds 180 degrees in electrical angle and a disk-shaped rotary armature constituted by the said armature coils arranged at equal pitches within a plane with their outside surfaces made radial and with each adjacent two of them kept in contact with each other and plastic in which the said armature coils are buried or a stationary armature with a magnetic body of a little iron loss functioning as a magnetic path on its one surface.