Energy saver elevator

• US 5,341,902 A
• Filed: 03/08/1993
• Issued: 08/30/1994
• Est. Priority Date: 03/08/1993
• Status: Expired due to Fees

• Current Assignee: George Spector, Rene A. Ruiz Sr
• Original Assignee: George Spector, Rene A. Ruiz Sr
• Inventors: Ruiz, Rene A. Sr., Spector, George
• Primary Examiner(s): Noland, Kenneth W.
• Application Number:
  US08/027,458
• Time in Patent Office: 540 Days
• Field of Search: 187/19, 187/20, 187/6, 187/78, 187/112, 187/114, 187/105, 182/141, 182/36, 318/139
• US Class Current: 187/251
• CPC Class Codes: B66B 1/302 for energy saving
• CPC Class Codes: B66B 1/306 with DC powered elevator drive
• CPC Class Codes: B66B 5/027 to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door

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.

Claims

1. 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.

2. An energy saver elevator as recited in claim 1, wherein said stopping means is a dynamic brake system located between said center spar on said elevator car and said stationary rack.