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. 06, 2007
Filed:
Oct. 06, 2003
Yasuhiro Miyamoto, Fukuoka, JP;
Takahisa Yamada, Fukuoka, JP;
Yasuhiro Miyamoto, Fukuoka, JP;
Takahisa Yamada, Fukuoka, JP;
Kabushiki Kaisha Yasakawa Denki, Fukuoka, JP;
Abstract
A linear motor including a plurality of movers (to), each of which is formed with an armature having a polyphase balancing winding (Ru to Rw), and a stator having a permanent magnet or a secondary conductor is configured such that the plurality of movers (to) are disposed on the single stator; and the polyphase balancing windings (Ru to Rw) in the respective movers (to) are connected in series. Accordingly, there can be obtained an inexpensive linear motor which is capable of driving a large machine, which is capable of canceling cogging force, which offers facilitated assembly of movers, and which can provide thermal protection of the movers with ease.