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:
May. 07, 2002
Filed:
Apr. 28, 1998
Stefan Roth, Eisenbrechtshofen, DE;
Wolfgang Schwarzinger, Vienna, AT;
Other;
Abstract
For increasing the safety monitoring of a plant with several functional units, such as a production plant, the invention provides a method and apparatus, in which each functional unit is individually monitored or checked by its own redundant two-channel safety device. The safety devices constantly inform one another of their monitoring state. In the case of a malfunction of at least one functional unit or safety device, at least one safety-relevant actuator is operated. For achieving this objective, an apparatus is constructed with each functional unit being associated with a safety device and the safety devices are interconnected so that, in the case of a malfunction of at least one functional unit or safety device, at least one safety-relevant actuator is operated.