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
2005-11-22
2005-11-22
Salata, Jonathan (Department: 2837)
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
C187S314000, C187S263000, C187S377000
Reexamination Certificate
active
06966409
ABSTRACT:
Backup power device for an elevator comprises a brake including a brake controller and a manual brake rod, a damping assembly including a roller at one end of a lever, and a wheel having alternate recesses and risers, an electro-magnetic controller having a control rod, a pulley having a rope run through the manual brake rod and the control rod, an electro-magnetic brake actuator, and a backup power supply. A passenger trapped in the car can pull down the rope in case of the failure of the electro-magnetic controller, the electro-magnetic brake actuator, and the backup power supply as the lever turns to cause the roller to contact the recess or the riser. The lever moves intermittently to cause the manual brake rod to activate the brake controller for braking and releasing a motor shaft again in intervals. Eventually, the passenger can escape.
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patent: 5680911 (1997-10-01), Wang
patent: 5890565 (1999-04-01), Wang
patent: 5971109 (1999-10-01), Aulanko et al.
patent: 6273216 (2001-08-01), Kocher et al.
patent: 6464043 (2002-10-01), Wang
patent: 6561318 (2003-05-01), Lamb
patent: 03036185 (1991-02-01), None
Pro-Techtor Int'l Services
Salata Jonathan
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