Elevator – industrial lift truck – or stationary lift for vehicle – Having specific load support drive-means or its control – Includes control for power source of drive-means
Reexamination Certificate
2005-02-01
2005-02-01
Chen, Jose V. (Department: 3637)
Elevator, industrial lift truck, or stationary lift for vehicle
Having specific load support drive-means or its control
Includes control for power source of drive-means
Reexamination Certificate
active
06848544
ABSTRACT:
A method and equipment is provided to allow a stuck elevator lift cage to be moved in situations when the lift cage and passengers is in weight equalization with the lift counterweight. With the lift's safety brake dis-engaged and the lift drive unactuated, the drive brake is released and an additional force is applied to the lift cage from a source external to the lift drive to move the lift cage to a position for passenger evacuation. The additional force may be applied through a cable pull connected to the limiter cable of the elevator's speed monitor system.
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Patent Abstracts of Japan, Pub. No. 08099780, Apr. 16, 1996 “Rope Type Linear Motor Elevator”.
Chen José V.
Schweitzer Cornman Gross & Bondell LLP
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