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US 5,341,902 AGranted
Energy saver elevator
OwnerRene A. Ruiz, Sr., George Spectorinventors
Life of this patent
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Abstract
An energy saver elevator is provided which consists of an elevator car, an elongated cable connected to the elevator car and a counterweight connected to the elongated cable. A DC power source and an auxiliary AC power source are also provided. A mechanism powered by the DC power source during normal conditions and by the auxiliary AC power source during emergency conditions, is for propelling the elevator car. A device is for recharging the normal DC power source by the motion of the elevator car and an apparatus is for stopping the elevator car.
Claims2
An energy saver elevator which comprises:
- a) an elevator car;
- b) an elongated cable connected to said elevator car;
- c) a counterweight connected to said elongated cable;
- d) DC power battery source for normal conditions;
- e) an auxiliary DC power source;
- f) means powered by said DC power source during normal conditions and by said auxiliary DC power source during emergency conditions, when said battery power source is discharged;
- g) means for recharging said normal DC power source by the motion of said elevator car;
- and
- h) means for stopping said elevator car;
- wherein said normal DC power source includes a plurality of batteries, which can be located in the bottom of said elevator car and;
- wherein a propelling means is an electric motor system, which is located between a center spar on said elevator car and a vertical center box channel, to raise and power said counterweight;
- wherein said recharging means is a generator system with an extending pinion located between said center spar on said elevator car and a stationary rack in the form of said vertical center box channel;
- whereby said pinion is driven by said rack when said car is in motion.
10 more elements
Dependencies are inferred from the claim text.