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:
Apr. 26, 2005
Filed:
Feb. 14, 2002
Pan Min, Uppsala, SE;
LI Ming, Västerås, SE;
Rongsheng Liu, Västerås, SE;
Mikael Dahlgren, Västerås, SE;
Par Holmberg, Västerås, SE;
Gunnar Russberg, Västerås, SE;
Christian Sasse, Västerås, SE;
Svante Söderholm, Västerås, SE;
Pan Min, Uppsala, SE;
Li Ming, Västerås, SE;
Rongsheng Liu, Västerås, SE;
Mikael Dahlgren, Västerås, SE;
Par Holmberg, Västerås, SE;
Gunnar Russberg, Västerås, SE;
Christian Sasse, Västerås, SE;
Svante Söderholm, Västerås, SE;
ABB AB, Vasteras, SE;
Abstract
A distributed air gap material for a induction device in power systems for minimizing fringe losses, mechanical losses and noise in the core The distributed air gap material occupies a selected portion of the core and is formed of a finely divided magnetic material in a matrix of a dielectric material particles. The air gap material has a zone of transition in which the permeability values vary within the air gap material.