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:
May. 20, 2003
Filed:
May. 11, 2001
Applicant:
Inventor:
Dietmar Stoiber, Fürth, DE;
Assignee:
Siemens Linear Motor Systems GmbH & Co. KG, München, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 4/102 ; H02K 1/17 ; H02K 1/18 ;
U.S. Cl.
CPC ...
H02K 4/102 ; H02K 1/17 ; H02K 1/18 ;
Abstract
A linear motor includes a rotor ( ) and a secondary member ( ), wherein the secondary member ( ) carries a cover for protection against mechanical damage, aggressive liquids etc. The cover ( ) has low magnetizable material and is held in place by magnetic elements ( ) of the secondary member. Thus, there is no need to secure the cover additionally by gluing etc and the cover can be easily replaced. The cover can be placed, preferably, as one piece upon the secondary member, which may be made of several secondary member elements, and carries a scale for controlling the position of the motor.