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. 12, 2015
Filed:
Feb. 04, 2010
Applicant:
Paulius Pieteris, Espoo, FI;
Inventor:
Paulius Pieteris, Espoo, FI;
Assignee:
ABB Oy, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 21/00 (2006.01); H01F 27/24 (2006.01); H01F 17/06 (2006.01); H01F 37/00 (2006.01); H01F 3/14 (2006.01); H01F 3/10 (2006.01);
U.S. Cl.
CPC ...
H01F 37/00 (2013.01); H01F 3/14 (2013.01); H01F 27/24 (2013.01); H01F 2003/103 (2013.01);
Abstract
A permanent magnet DC inductor is disclosed which includes at least two separate and individual magnetic inductors, each having its own core structure and forming closed individual magnetic paths having at least one magnetic gap. Windings are provided on the magnetic cores, and at least one permanent magnet piece is provided with each inductor. The separate magnetic cores having the at least one magnetic gap are arranged against each other to form external magnetic gaps with the permanent magnet pieces arranged inside the external magnetic gaps on both sides of the at least one magnetic gap.