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:
Sep. 22, 2009
Filed:
Oct. 17, 2003
Applicant:
Ingo Hahn, Lohr am Main, DE;
Inventor:
Ingo Hahn, Lohr am Main, DE;
Assignee:
Rexroth Indramat GmbH, Lohr am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 21/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A three-phase machine has a primary part having N grooves and m electrical phase windings; a secondary part having a number p of pole pairs (P-P), each comprised of two magnetic poles of different polarities; wherein the pole gap is essentially the same for all of the pole pairs (P-P) and results from an even distribution of all of the poles on the secondary part; and at least one pole pair (P-P), with no change to its pole gap, is shifted by a predetermined distance in relation to an equidistant distribution of all of the pole pairs.