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:
Oct. 04, 2016
Filed:
Oct. 08, 2013
Sick Ag, Waldkirch/Breisgau, DE;
Stephan Henneberger, Freiburg, DE;
SICK AG, Waldkirch/Breisgau, DE;
Abstract
The invention relates to a safety system comprising a safety unit having an output and a safety input, a bus line and at least one safety related participant. The bus line and the safety related participant form a test signal path having a forward path and a return path. The safety related participant comprises an interconnection module with a test signal input and a test signal output and a protective device integrated in the test signal path by means of the interconnection module. The protective device comprises two switches which are respectively connected to the interconnection module via a forward line and a return line of the interconnection line for the formation of a first and a second electric switching path. The interconnection module comprises a test circuit for the two switching paths with a controlled current source, a controlled current sink and a current direction element.