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:
Nov. 05, 2013
Filed:
Nov. 02, 2010
Applicants:
Axel Kraemer, Regensburg, DE;
Dazhong Shen, Neutraubling, DE;
Inventors:
Axel Kraemer, Regensburg, DE;
Dazhong Shen, Neutraubling, DE;
Assignee:
Maschinenfabrik Reinhausen GmbH, Regensburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 21/12 (2006.01); H01F 21/02 (2006.01); H01F 27/28 (2006.01); H01F 21/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a step switch provided with a preselector and a polarity circuit, a separate polarization resistance being respectively provided at the beginning and the end of the stepped winding. Optionally, the two polarization resistances can be connected continuously or via separate polarity switches.