Traction elevator back-up power system with inverter timing

Details Traction elevator back-up power system with inverter timing Traction elevator back-up power system with inverter timing

2007-10-02

2007-10-02

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

C187S277000

Reexamination Certificate

active

10844892

ABSTRACT:
A back-up power system for a traction elevator includes a power sensing device to sense a power loss or irregularity of the normal control power. An inverter timing system is connected to the power loss sensing device. The inverter timing system receives a power sensing signal from the power sensing device. A back-up power generating system communicates with the inverter timing system and generates an output to provide back-up power to the elevator system.

REFERENCES:
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patent: 5058710 (1991-10-01), Iwasa
patent: 5325034 (1994-06-01), Reynolds
patent: 6315081 (2001-11-01), Yeo
patent: 6439348 (2002-08-01), Tajima et al.
patent: 6516922 (2003-02-01), Shadkin et al.
patent: 6631790 (2003-10-01), Mattlar et al.
patent: 6712183 (2004-03-01), Otsuka et al.

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