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:
Jun. 09, 2015
Filed:
Feb. 21, 2011
Dirk Lorenz, Wetter, DE;
Kevin Zomchek, Nashua, NH (US);
Rudolf Papenbreer, Wuppertal, DE;
Norbert Machuletz, Wetter, DE;
Thomas Helpenstein, Grevenbroich, DE;
Dirk Lorenz, Wetter, DE;
Kevin Zomchek, Nashua, NH (US);
Rudolf Papenbreer, Wuppertal, DE;
Norbert Machuletz, Wetter, DE;
Thomas Helpenstein, Grevenbroich, DE;
Rockwell Automation Germany GMBH & Co. KG, Wuppertal, DE;
Abstract
The present invention relates to a safety switching device for actuating actuators in a fail-safe manner, and further relates to an emergency shut-off circuit comprising a safety switching device according to the present invention. The safety switching device includes at least one first and second safety input for receiving a first and second input signal, at least one first and second safety output for transmitting a first and second output signal, and a control unit for evaluating said input signals and for generating said output signals. The first and second safety outputs further comprise a feedback loop said that couples the output signals back to the control unit such that the control unit is operable to perform a test routine for testing said output signals.