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:
Dec. 14, 1993
Filed:
May. 07, 1992
Taisaku Hashimoto, Kashiwara, JP;
Koyo Seiko Co. Ltd., Osaka, JP;
Abstract
A magnetic drive device comprising a rotor disposed inside a cylindrical wall so as to be rotatable and axially movable, a fixed magnetic bearing fixedly provided on the cylindrical wall for holding the rotor radially thereof, a magnetic coupling having a drive portion disposed around the cylindrical wall so as to be rotatable and axially movable for transmitting a torque and an axial holding force to the rotor, and a movable magnetic bearing disposed around the cylindrical wall so as to be axially movable with the drive portion of the magnetic coupling for holding the rotor radially thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile