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.

Date of Patent:
Jul. 07, 2015

Filed:

Dec. 15, 2011
Applicant:

Arend Lammers, TV Hengelo, NL;

Inventor:

Arend Lammers, TV Hengelo, NL;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 7/16 (2006.01); H01H 75/00 (2006.01); H01H 77/00 (2006.01); H01F 7/18 (2006.01); H01H 71/24 (2006.01); H01F 7/123 (2006.01); H01H 71/26 (2006.01); H01H 83/12 (2006.01);
U.S. Cl.
CPC ...
H01H 71/24 (2013.01); H01F 7/123 (2013.01); H01H 71/26 (2013.01); H01H 83/12 (2013.01);
Abstract

An electromagnetic actuator has a yoke for guiding a magnetic flux, and a holding plate attached to an actuating member, the holding plate and yoke forming a first magnetic circuit. Furthermore a magnetic flux generation device is provided for generating a magnetic flux in the first magnetic circuit. The magnetic flux generation device has an under voltage release coil electrically connected to an auxiliary voltage source representing the value of a voltage to be monitored.


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