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. 05, 1991
Filed:
Jan. 08, 1990
Applicant:
Inventor:
Denis Alff, Cedex, FR;
Assignee:
The Torrington Company, Torrington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335306 ; 310168 ;
Abstract
A multipolar magnetic ring is fomred by joining together two rings having the same geometry and magnetic characteristics. The coaxial rings have circumferentially spaced apart teeth which form identical magnetic poles. The magnetic poles of each ring are embedded into the spaces separating the magnetic poles of the other ring. The magnetic poles of each ring have the opposite polarity to the polarity of the adjacent poles of the other ring.