Elevator – industrial lift truck – or stationary lift for vehicle – With barrier for regulating access to load support – Includes motor or motor driven linkage for shifting barrier
Patent
1996-10-25
1998-06-02
Nappi, Robert
Elevator, industrial lift truck, or stationary lift for vehicle
With barrier for regulating access to load support
Includes motor or motor driven linkage for shifting barrier
187393, B66B 1314, B66B 134
Patent
active
057603502
ABSTRACT:
An apparatus and method for providing an elevator door performance result of an elevator door in an elevator door system which normally operates sequentially from state-to-state in a closed loop sequential chain of normal operating states is disclosed. A plurality of parameter signals provided by the elevator door system is monitored by the apparatus. The apparatus comprises: a door state sequencer for providing a performance measure; a module for providing a reference measure and an acceptable range; and an abnormal detection module for analyzing the door performance measure.
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Copy of U.S. Patent Application Serial No. 08/740,601 entitled "Monitoring of Manual Elevator Door Systems" filed Oct. 31, 1996, Sanjay Kamani, et al.
Copy of U.S. Patent Application Serial No. 08/757,306 entitled "Monitoring of Elevator Door Reversal Data" filed Nov. 27, 1996, Sanjay Kamani, et al.
Kamani Sanjay
Lusaka Patrick
Mashiak Robert
Pepin Ronald R.
Rennetaud Jean-Marie
Nappi Robert
Otis Elevator Company
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