Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1974-05-15
1980-12-23
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 118
Patent
active
042405270
ABSTRACT:
An elevator system for a structure having a plurality of floors, including a plurality of elevator cars mounted in the structure to serve the floors. The elevator system performs a plurality of functions related to collecting floor or corridor calls, collecting car status and position data, allocating corridor calls to suitably conditioned elevator cars which are already in the process of serving calls for elevator service, creating a demand signal relative to a call which can not be so allocated, and assigning an available car not in the process of serving calls for elevator service to a call for which a demand signal was created. The various functions are performed as the need is indicated for them, with the sequence of their performance, when the need for more than one function is indicated, depending upon their relative urgencies. In one embodiment, certain of the functions are serially performed in a predetermined first loop until a demand signal is created and there is an available car which can be assigned to the demand call, which concurrent conditions establish a second loop which includes the function of assigning an available car to a demand call.
REFERENCES:
patent: 3605951 (1971-09-01), Kirsch
patent: 3682275 (1972-08-01), Loshbough et al.
patent: 3739880 (1973-06-01), Robaszkiewicz
patent: 3743057 (1973-07-01), Hall et al.
Duncanson Jr. W. E.
Lackey D. R.
Truhe J. V.
Westinghouse Electric Corp.
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