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:
Mar. 18, 2014
Filed:
Oct. 26, 2011
Beat DE Coi, Sargans, CH;
Dumeng Hersche, Bonaduz, CH;
Jürg Hegelbach, Oberriet, CH;
Tobias Leutenegger, Chur, CH;
Beat De Coi, Sargans, CH;
Dumeng Hersche, Bonaduz, CH;
Jürg Hegelbach, Oberriet, CH;
Tobias Leutenegger, Chur, CH;
Cedes AG, Landquart, CH;
Abstract
A sensor for safety apparatuses for elevator apparatuses which can move a cab by means of a drive, the sensor including a contact bridge and a contact receptacle for receiving the contact bridge, said contact bridge being arranged in such a way that the closing state of the elevator door can be determined by connection of the contact receptacle and the contact bridge. In order to be able to improve in particular the susceptibility to maintenance, the sensor is in the form of an optical sensor which comprises a transmitter for transmitting an optical signal and a receiver for receiving the optical signal, the transmitter and the receiver being arranged on the contact receptacle and the contact bridge comprising at least one transmission element for transmitting the optical signal.