Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1980-02-19
1982-01-05
Dobeck, B.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
B66B 502
Patent
active
043089364
ABSTRACT:
An elevator system including a comparator which develops a control signal responsive to the actual versus the designed performance of the elevator car as it approaches a floor at which it is to stop. This control signal is used in a monitoring and protective arrangement which controls pre-opening of the doors before the elevator car stops at a floor, as well as providing additional protection relative to the operation of the elevator car after it has made an inaccurate landing, and back-up protection for any movement of the elevator car with its doors open.
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patent: 4101007 (1978-07-01), Magee
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Caputo William R.
De Lorenzi John J.
Dobeck B.
Duncanson Jr. W. E.
Lackey D. R.
Westinghouse Electric Corp.
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