Elevator energy conservation system

Details Elevator energy conservation system Elevator energy conservation system

1997-05-20

1999-06-01

Nappi, Robert E.

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

187290, 318137, B66B 128

Patent

active

059090170

ABSTRACT:
An elevator energy conservation system is disclosed comprising an elevator motor driven by generator having two power supplies. A primary power supply provides electricity to the generator when the elevator motor is in use, while a smaller power supply using significantly less electricity powers the generator while it is idling. The two power supply system has been shown to cut the electricity usage for standard elevators by fifty percent or more over extended periods of use. Moreover, the present invention in a preferred embodiment discloses a shaft which extends from the generator which can be used to power other local machines such as air conditioners, blowers, heaters, and DC motors.

REFERENCES:
patent: Re32404 (1987-04-01), Ferris
patent: 865819 (1907-09-01), Powell
patent: 2046722 (1936-07-01), Bouton et al.
patent: 3658156 (1972-04-01), Abbott
patent: 4489812 (1984-12-01), Ferris

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