Elevator with vertical vibration compensation

Details Elevator with vertical vibration compensation Elevator with vertical vibration compensation

2006-03-23

2009-11-24

Ro, Bentsu (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

C187S394000, C187S406000

Reexamination Certificate

active

07621377

ABSTRACT:
An elevator has a car traveling along guide rails within a hoistway and a main drive propelling the car. A sensor mounted on the car measures a vertical travel parameter of the car, a comparator compares the sensed car travel parameter with a reference value derived from the main drive, and an auxiliary motor mounted on the car exerts a vertical force on at least one of the guide rails in response to an error signal output from the comparator.

REFERENCES:
patent: 2052690 (1936-09-01), Austin
patent: 4030570 (1977-06-01), Caputo
patent: 4269286 (1981-05-01), Ishii et al.
patent: 4416352 (1983-11-01), Husson et al.
patent: 5027925 (1991-07-01), Kahkipuro
patent: 5308938 (1994-05-01), Roberts et al.
patent: 5544721 (1996-08-01), Roberts
patent: 5824975 (1998-10-01), Hong
patent: 5828014 (1998-10-01), Goto et al.
patent: 5955709 (1999-09-01), Traktovenko et al.
patent: 6311802 (2001-11-01), Choi et al.
patent: 6401871 (2002-06-01), Baranda et al.
patent: 6474449 (2002-11-01), Utsunomiya et al.
patent: 2001/0037916 (2001-11-01), Morishita
patent: 2002/0047350 (2002-04-01), Pal
patent: 2003/0111302 (2003-06-01), Utsunomiya et al.
patent: 2003/0192745 (2003-10-01), Utsunomiya et al.
patent: 2004/0020725 (2004-02-01), Utsunomiya et al.
patent: 2005/0145439 (2005-07-01), Husmann et al.
patent: 2005/0145440 (2005-07-01), Husmann et al.
patent: 1 469 021 (2004-09-01), None
patent: 284 387 (1928-01-01), None
patent: 284387 (1928-01-01), None
patent: 3-018577 (1991-01-01), None
patent: 2002-087722 (2002-03-01), None
patent: 2002087722 (2002-03-01), None

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