Advanced energy saving hydraulic elevator

Details Advanced energy saving hydraulic elevator Advanced energy saving hydraulic elevator

1992-04-30

1993-08-24

Olszewski, Robert P.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 94, B66B 1104

Patent

active

052380874

ABSTRACT:
An hydraulic elevator utilizes a double acting cylinder to drive a counterweighted elevator upwardly and downwardly. The weight of the counterweight is approximately equal to the weight of the car plus 50% of the duty load of the elevator.

REFERENCES:
patent: 965542 (1910-07-01), Schuller
patent: 1277567 (1918-09-01), Garrison
patent: 2906374 (1959-09-01), Brumby
patent: 3905496 (1975-09-01), Reeder
patent: 4703835 (1987-11-01), Negrutsky et al.
patent: 5056627 (1991-10-01), Pelto-Huikko

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