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:
Dec. 04, 2007
Filed:
Oct. 04, 2006
Applicants:
Ralf Förtsch, Freising, DE;
Werner Mühleisen, München, DE;
Roland Hölzl, München, DE;
Inventors:
Assignee:
Prueftechnik Dieter Busch AG, Ismaning, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device for efficient transmission of electrical energy and/or information is built in the manner of a rotary transformer. The cores of this device are made of ferromagnetic rings of a U-shaped cross section of soft iron, or of soft iron core stacks of annular or hollow cylindrical shape, the ring-shaped or hollow cylindrical sheets typically being unslotted. There can be several coil sets within such a device; in this way several channels can be made available for parallel transmission of electrical energy and/or information.