Lift control method

Details Lift control method Lift control method

1997-03-31

1998-12-08

Nguyen, Hoang

Power plants

Pressure fluid source and motor

Apparatus having means responsive to or ameliorating the...

60426, 91517, F16D 3102

Patent

active

058454942

ABSTRACT:
A lift having a freight-receiving table which is rotatably supported by one or more each of hydraulic lift and tilt cylinders for respectively lifting and tilting the table is controlled such that an overloaded condition of the table is detected by measuring the internal pressure of the tilt cylinder or both the tilt and lift cylinders. If the measured pressure exceeds a pre-determined critical value, the operation of the lift is automatically and immediately stopped.

REFERENCES:
patent: 4505111 (1985-03-01), Okamoto et al.
patent: 4665696 (1987-05-01), Rosman
patent: 5297381 (1994-03-01), Eich et al.
patent: 5301505 (1994-04-01), Wright
patent: 5305680 (1994-04-01), Weber

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