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:
Apr. 08, 2008
Filed:
Sep. 29, 2004
Romeo Deplazes, Oberruti, CH;
Romeo Deplazes, Oberruti, CH;
Inventio AG, Hergiswil, CH;
Abstract
A safety system for an elevator installation for the transport of persons/goods in a building and a method for operating an elevator installation with a safety system. Several cages are moved one above the other in a shaft. Each cage is moved by a drive. At least one drive control controls the drives by way of drive control signals. Cage position detecting sensors detect positions of each cage and transmit cage position data to at least one safety control. Access to the shaft takes place by way of opened shaft doors. A lock locks the shaft doors. Lock setting detecting sensors detect settings of the locks of the shaft doors and transmit lock setting data by way of the data bus to the safety control. The safety control ascertains, from the cage position data and the lock setting data, shaft region data with details with respect to shaft regions in which each cage is safely movable. The safety control transmits the shaft region data to the drive control, which converts the shaft region data into drive control signals in order to move the cages in separate shaft regions and in order to move the cages in shaft regions with locked shaft doors.