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. 21, 1978
Filed:
Jun. 26, 1975
Applicant:
Inventor:
Albert L De Graffenried, Glen Head, NY (US);
Assignee:
Photocircuits Division of Kollmorgen Corporation, Glen Cove, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310159 ; 310266 ;
Abstract
Magnetic means and circuits for efficiently conducting and directing flux to a flux emergent surface, such as the pole of a motor pole piece, in which flux produced by one or more permanent magnetic sources matched in reluctance to a working air gap is directed through an essentially continuously curved convex surface of a volume of magnetically permeable material significantly greater in area than the area of the working air gap, with the flux from the magnetic source(s) is generally everywhere normal to that surface.