Elevator – industrial lift truck – or stationary lift for vehicle – With monitoring – signalling – and indicating means – Monitors operational parameter
Patent
1994-07-25
1996-08-13
Wong, Peter S.
Elevator, industrial lift truck, or stationary lift for vehicle
With monitoring, signalling, and indicating means
Monitors operational parameter
187292, 187391, B66B 144
Patent
active
055447210
ABSTRACT:
Elevator horizontal vibrations are actively controlled by retrieving data stored in memory indicative of the out-of-straightness of the elevator car's guide rails. The stored data is compiled during a learning run by summing the car's relative displacement with respect to the rail with a doubly integrated acceleration signal indicative of the car's deviation from true vertical.
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Maguire Francis J.
Nappi Robert
Otis Elevator Company
Wong Peter S.
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