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
1996-10-31
1998-07-14
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, 187390, B66B 316, G08B 2100
Patent
active
057807876
ABSTRACT:
A method for monitoring a manual elevator door system comprising the steps of: providing a plurality of sensor signals; detecting the sensor signals; determining in response to detecting the sensor signals that an elevator car is stopped at a landing; determining in response to detecting the sensor signals that a car door of the elevator car is open; determining in response to detecting the sensor signals that a hoistway door is unlocked; determining in response to detecting the sensor signals that a hoistway door is closed; determining in response to detecting the sensor signals that a call has been assigned to the elevator car during a time that the hoistway door is closed; and providing a performance data signal in response to said determinations wherein said performance data signal is representative that the manual elevator door system is in a non-alarm condition.
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Copy of U.S. Patent Application Serial No. 08/738,667 entitled "Monitoring of Elevator Door Performance" filed Oct. 25, 1996, Ronald R. Pepin, et al.
Copy of U.S. Patent Application Serial No. 08/757306 entitled "Monitoring of Elevator Door Reversal Data" filed Nov. 27, 1996, Sanjay Kamani, et al.
Kamani Sanjay
Sanches Jean
Nappi Robert
Otis Elevator Company
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