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:
Sep. 02, 2014
Filed:
Nov. 15, 2012
Cedes Ag, Landquart, CH;
Beat De Coi, Sargans, CH;
Tobias Leutenegger, Chur, CH;
Dumeng Hersche, Bonaduz, CH;
Jurg Hegelbach, Oberriet, CH;
Cedes AG, Landquart, CH;
Abstract
Safety apparatus for elevator apparatuses which can move a cab via a drive, wherein the drive can be monitored via a monitoring unit for monitoring the drive, including: a first safety circuit, which has a closed conduction state and an open conduction state, with an interruption apparatus for interrupting the drive depending on the conduction state of the first safety circuit, a safety device, which includes at least two sensors, which can be switched between at least two switching states depending on a state to be detected by the sensors. To provide improved maintenance, a switching unit is provided, which can be switched between at least two switching states by connection to the safety device and is designed to effect the closed and/or open conduction state of the first safety circuit, wherein the switching unit includes a transmission device for transmitting data and/or monitoring signals to the monitoring unit.