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. 30, 2004
Filed:
Jan. 18, 2001
Klaus Greubel, Bad Neustadt, DE;
Axel Knauff, Münnerstadt, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
In order to suppress virtually completely the cyclic power variation of a linear synchronous motor, the latter has the following features. At least one primary part ( ) and at least one secondary part ( ), which has a sequence of poles ( ) formed by permanent magnets, and is also larger than the length of the primary part ( ) in the movement direction ( ). The primary part ( ) has primary slots ( ) which are suitable for receiving monophase or polyphase windings. Moreover, the primary part ( ) has means for changing the magnetic force in the movement direction ( ) of the linear motor in the region of the end piece ( ) of the primary part ( ). The end faces ( ) of the end pieces ( ) extend perpendicular to the movement direction ( ) of the linear motor.