Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1991-07-11
1994-05-17
Stephan, Steven L.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
187117, 187136, B66B 302
Patent
active
053130260
ABSTRACT:
An electronic stepper for indicating floor position has initialization switches set by a serviceman for indicating a reference floor position. Whenever the car goes by the reference position in the hoistway, the corresponding reference floor is output. The electronic stepper may be mounted on a printed circuit board having a floor display for use by the serviceman. Various toggle switches may be provided for use by the serviceman in setting up and checking operation. Power checking means may be provided for initiating nonvolatile storage of the current floor position in the event of a brown-out or other power failure. Watchdog circuitry may be provided for checking on the health of the signal processor and a circuit for watching the watchdog may also be provided. A timed window signal may also be provided for indicating the end of the time at which a stopping sequence must be initiated in order to be able to stop at the approaching floor.
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Universal Electronic Stepping Switch, Sales literature published by P.C.-X-Change Inc. describing one to eight bank top and bottom correction device for replacing mechanical stepper.
Greenfield Burton
LaRose Monique M.
Reid William P.
Youla Jean
Maguire, Jr. Francis J.
Nappi Robert
Otis Elevator Company
Stephan Steven L.
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