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:
Jul. 12, 2011
Filed:
Dec. 22, 2005
Robert Adunka, Sulzbach-Rosenberg, DE;
Peter Hartinger, Bodenwöhr, DE;
Bardo Koppmann, Kaltenbrunn, DE;
Norbert Mitlmeier, Ursensollen, DE;
Ludwig Niebler, Laaber, DE;
Fritz Pohl, Hemhofen, DE;
Alf Wabner, Amberg, DE;
Norbert Zimmermann, Sulzbach-Rosenberg, DE;
Robert Adunka, Sulzbach-Rosenberg, DE;
Peter Hartinger, Bodenwöhr, DE;
Bardo Koppmann, Kaltenbrunn, DE;
Norbert Mitlmeier, Ursensollen, DE;
Ludwig Niebler, Laaber, DE;
Fritz Pohl, Hemhofen, DE;
Alf Wabner, Amberg, DE;
Norbert Zimmermann, Sulzbach-Rosenberg, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method and a device are disclosed for the secure operation of a switching device including at least one main contact which can be switched on and off and which includes contact pieces and a displaceable contact bridge, and at least one control magnet which includes a displaceable anchor. The anchor and the contact bridge are actively connected to each other such that the corresponding main contact can be opened or closed when switched on and off. In at least one embodiment, the method includes the following: a) the path difference, which returns the anchor after switching on and off, is recognised, b) devices which are used to open welded main contacts are released by a release device when the recognised path difference exceeds a predetermined value and a specific time duration of time has run out after switching off.