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. 24, 2012
Filed:
Apr. 24, 2007
Erik Bächle, Filderstadt, DE;
Walter Link, Rutesheim, DE;
Erik Bächle, Filderstadt, DE;
Walter Link, Rutesheim, DE;
Euchner GmbH & Co. KG, Leinfelden-Echterdingen, DE;
Abstract
An apparatus () for monitoring the state of a protective device () of a machine () in particular is a safety switch for monitoring the closed state of a protective door or the like. The apparatus () has a switch housing () with a switch head () and an actuator (). In the closed state of the protective device (), the actuator interacts with the switch head () and, as a result, the closed state of the protective device () can be signaled. The apparatus () has a tumbler device () with a tumbler element () mounted movably in the apparatus () and by which the closed state of the protective device () can be locked releasably. The tumbler device () has at least one permanent magnet (). By the magnetic force, the tumbler element () can be fixed in a first position when the power supply to the apparatus () is switched off, in which first position the tumbler device () locks the closed state of the protective device (), and/or can be fixed in a second position, in which the tumbler device () does not lock the closed state of the protective device ().