Elevator system

Details Elevator system Elevator system

1982-08-19

1984-08-07

Rubinson, G. Z.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

340 19R, 340 20, 340 21, B66B 302

Patent

active

044638337

ABSTRACT:
An elevator system in which a count is maintained to enable a car to be leveled in the correct travel direction in the event the car stops outside the landing zone of a target floor. The count is incremented each time the advanced car position changes floors, and it is decremented each time the car is level with a floor during the run. If the car lands outside the landing zone, a zero count indicates the car overshot the floor, while a non-zero count indicates undershoot. The count, along with the travel direction of the run, which is stored in memory, thus determines the leveling direction to level the car with the target floor.

REFERENCES:
patent: 3747710 (1973-07-01), Winkler
patent: 3898611 (1975-08-01), Mandel
patent: 3995719 (1976-12-01), Mandel et al.
patent: 4032882 (1977-06-01), Mandel et al.
patent: 4102437 (1978-07-01), Mandel
patent: 4248327 (1981-02-01), Mandel et al.
patent: 4256203 (1981-03-01), Masel
patent: 4317506 (1982-03-01), Quan et al.
patent: 4367811 (1983-01-01), Yoneda et al.
patent: 4387436 (1983-06-01), Katayama et al.
patent: 4389631 (1983-06-01), Kajiyama et al.

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