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. 04, 1997
Filed:
Jul. 05, 1995
Kayaba Kogyo Kabushiki Kaisha, Tokyo, JP;
Toukai Denshi Kogyo Kabushiki Kaisha, Aichi, JP;
Abstract
A ring rotor is supported free to rotate in a housing, and a plurality of magnets are provided on the inner circumference of the ring rotor having their N and S poles oriented alternately. A stator is fixed to the housing on the inner side of the ring rotor, this stator having a plurality of coils. A switch is provided in the energizing path of the coils, and a mechanism for stopping the ring rotor at a predetermined rotation position is also provided. When one of the coils is energized via the switch, the ring rotor is caused to rotate, and is then held by the stop mechanism. Since the coils are not energized after the operation, power is economized, and burning of the coils is prevented.