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:
Feb. 04, 2020
Filed:
Jun. 29, 2017
Rittal Gmbh & Co. KG, Herborn, DE;
Heiko Holighaus, Eschenburg, DE;
RITTAL GMBH & CO. KG, Herborn, DE;
Abstract
The invention relates to a locking arrangement, in particular a door lock arrangement for a switchgear cabinet, which has a system for verifying a locking authorization, wherein the system has a door lock having an antenna for contactlessly receiving an access authorization signal from a separate transponder, wherein an excitation signal for the transponder is emitted by the antenna only in an active state of the antenna, wherein the locking arrangement has a voltmeter which is used to capture an electrical voltage dropped across the antenna or a voltage change in the passive state of the antenna, wherein the antenna changes from the passive state to the active state if a voltage drop is present across the antenna in the passive state. A corresponding method is also described.