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
Reexamination Certificate
2011-04-26
2011-04-26
Benson, Walter (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, C187S313000
Reexamination Certificate
active
07931127
ABSTRACT:
In an elevator apparatus, a brake device is controlled by a brake control device. The brake control device is capable of performing braking force reduction control for reducing the braking force of the brake device at a time of emergency braking of a car. The brake control device monitors a running state of the car at the time of emergency braking thereof, and makes a switchover between validity and invalidity of braking force reduction control such that the car is stopped within a preset allowable stopping distance.
REFERENCES:
patent: 4220222 (1980-09-01), Kamaike et al.
patent: 5070290 (1991-12-01), Iwasa et al.
patent: 5244060 (1993-09-01), Tanaka et al.
patent: 5323878 (1994-06-01), Nakamura et al.
patent: 5402863 (1995-04-01), Okumura et al.
patent: 6802395 (2004-10-01), Helstrom et al.
patent: 1486918 (2004-04-01), None
patent: 2 153 465 (1985-08-01), None
patent: 54-33454 (1979-03-01), None
patent: 60-148879 (1985-08-01), None
patent: 7 157211 (1995-06-01), None
patent: 7 206288 (1995-08-01), None
patent: 1993-422 (1993-01-01), None
U.S. Appl. No. 12/064,394, filed Feb. 21, 2008, Ueda, et al.
U.S. Appl. No. 12/064,910, filed Feb. 26, 2008, Kondo, et al.
U.S. Appl. No. 12/532,414, filed Sep. 22, 2009, Ueda, et al.
U.S. Appl. No. 12/740,371, Apr. 29, 2010, Kondo, et al.
U.S. Appl. No. 12/810,313, filed Jun. 24, 2010, Kondo, et al.
U.S. Appl. No. 12/812,609, filed Jul. 13, 2010, Ueda.
Kigawa Hiroshi
Kondo Rikio
Ueda Takaharu
Benson Walter
Chan Kawing
Mitsubishi Electric Corporation
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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