Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1981-07-23
1983-08-09
Truhe, J. V.
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
043973779
ABSTRACT:
An elevator system having a plurality of cars under group supervisory control by a programmable dispatcher. A monitor detects dispatcher failure via a plurality of tests which includes timing each hall call, and performing predetermined checks, tests and comparisons for each call related to actual system operating conditions.
REFERENCES:
patent: 2695077 (1954-11-01), Suozzo
patent: 3854554 (1974-12-01), Booker, Jr.
patent: 4046227 (1977-09-01), Kirsch et al.
patent: 4162719 (1979-07-01), Husson et al.
Husson Alan L.
Lanctot Jane B.
Duncanson Jr. W. E.
Lackey D. R.
Truhe J. V.
Westinghouse Electric Corp.
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