Elevator system

Details Elevator system Elevator system

2007-12-14

2010-12-28

Mansen, Michael R (Department: 3654)

Elevator, industrial lift truck, or stationary lift for vehicle

Having independent supports carrying distinct loads and...

C187S258000

Reexamination Certificate

active

07857103

ABSTRACT:
An elevator system has a lower elevator car, an upper elevator car and a common counterweight in an elevator shaft. A support device has a first support strand and a second support strand. Each of the elevator cars is connected with the two support strands. In addition, a drive for driving the elevator cars is arranged in the elevator shaft. The drive includes four drive pulleys, wherein a first drive pulley and a second drive pulley are associated with the first support strand and the third drive pulley and the fourth drive pulley are associated with the second support strand.

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