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:
Jan. 13, 1987
Filed:
Aug. 19, 1985
Yukihiko Yasuhara, Kakuda, JP;
Alps Electric Co., Ltd., , JP;
Abstract
In a brushless motor comprising a stator portion having a stator yoke on which a plurality of drive coils are mounted, and a rotor portion having a rotor yoke on which a ring-like rotor magnet is mounted, the rotor portion being arranged to be rotated by interaction between a current flowing in the drive coils and magnetic flux generated from the rotor magnet, disclosed is a drive coil structure provided with coil holders formed on the stator yoke through outsert molding for respectively positioning the drive coils on the stator yoke, and a protrusion respectively formed on each of the coil holders at its end surface opposed to the rotor magnet for preventing the drive coil from coming loose.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile