Elevator system

Details Elevator system Elevator system

1982-03-10

1984-03-06

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 130

Patent

active

044348746

ABSTRACT:
A feedback controlled elevator system including a speed pattern generator for providing a speed pattern signal responsive to desired speed. A limiting signal responsive to the absolute position of the elevator car is compared with the speed pattern signal, and the lesser of these two signals is compared with a velocity signal to determine speed error.

REFERENCES:
patent: 4161235 (1979-07-01), Caputo et al.
patent: 4161236 (1979-07-01), Husson
patent: 4318456 (1982-03-01), Lowry
patent: 4356896 (1982-11-01), Tamura et al.

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