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:
Aug. 22, 1989
Filed:
Oct. 11, 1988
Applicant:
Inventors:
Gerald B Kliman, Schenectady, NY (US);
Donald W Jones, Burnt Hills, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335229 ; 310 12 ; 310 14 ;
Abstract
An electromagnetic actuator includes a moving element comprising a plurality of permanent magnets oriented in alternating magnetic pole position so as to present a sequence of alternating north-south magnetic poles. The magnets can be angularly oriented within a magnetic structure serving to concentrate magnetic flux and focus such flux at the surface of the structure. Alternatively, the magnets are surface mounted within a structure of non-magnetic material. The actuator includes opposed electro-magnetic stators between which the moving element is positioned.