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Class Information
Number: 187/290
Name: 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 > With specific electrical component > For electric power source > With auxiliary supply of electricity
Description: Subject matter provided with an alternate or reserve supply (e.g., battery) of electric current for powering the control* or force generating means upon failure or reduction in the primary supply of electric current.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8674631 Power conversion apparatus and method of controlling capacitor voltage of power conversion apparatus Mar. 18, 2014
8631908 Elevator system and associated method including power control for operating an elevator in an emergency mode Jan. 21, 2014
8622177 Control system and energy storage for an elevator apparatus Jan. 7, 2014
8616338 Management of power from multiple sources based on elevator usage patterns Dec. 31, 2013
8613344 Line current and energy storage control for an elevator drive Dec. 24, 2013
8590672 Management of power from multiple sources in an elevator power system Nov. 26, 2013
8584807 Line current and energy storage control for an elevator drive Nov. 19, 2013
8575869 Arrangement and method in connection with a transport system Nov. 5, 2013
8471403 Power supply arrangement of an elevator Jun. 25, 2013
8463462 Systems and methods for braking system testing Jun. 11, 2013
8368330 Energy-recovery device in a variable speed drive Feb. 5, 2013
8356698 Wireless elevator hall fixtures integral with hall door frame Jan. 22, 2013
8297411 Brake device for use in an elevator using a target pattern when a hoist is not driven Oct. 30, 2012
8251184 Hydraulic load lifter with energy recovery system Aug. 28, 2012
8230978 Elevator regenerative drive with automatic rescue operation Jul. 31, 2012
8220590 Thermoelectric thermal management system for the energy storage system in a regenerative elevator Jul. 17, 2012
8177032 Elevator having regenerative voltage control May. 15, 2012
8177033 Transportation system with capacitive energy storage and non-volatile memory for storing the operational state of the transportation system upon detection of the operational anomaly in power May. 15, 2012
8172042 Elevator power system May. 8, 2012
8146714 Elevator system including regenerative drive and rescue operation circuit for normal and power failure conditions Apr. 3, 2012
8127894 Elevator motor drive tolerant of an irregular power source Mar. 6, 2012
8104584 Elevator drive control strategy Jan. 31, 2012
8083033 Elevator system with control to allocate a call based on charging status of energy storage, and method of controlling an elevator group Dec. 27, 2011
7942246 Controlling an elevator with a standby mode May. 17, 2011
7896137 Elevator power system having plural storage apparatuses Mar. 1, 2011
7837011 Elevator controller Nov. 23, 2010
7775328 Operation device for an elevator system Aug. 17, 2010
7690483 Elevator including elevator rescue system Apr. 6, 2010
7681694 Energy storage system for elevators Mar. 23, 2010
7681693 Method for performing an elevator rescue run Mar. 23, 2010
7677362 Actuator driving method and actuator driving circuit Mar. 16, 2010
7650968 Elevator rescue operation control system including selective transformer winding energization Jan. 26, 2010
7614481 Elevator apparatus including a safety control portion that detects an abnormality Nov. 10, 2009
7594564 Elevator system Sep. 29, 2009
7549515 Electrical elevator rescue system Jun. 23, 2009
7540355 Self-operable reserve power system for an elevator system Jun. 2, 2009
7506726 Counter weighted safety device for an elevator Mar. 24, 2009
7497304 Device for detecting failure in driving power supply for elevator, and method for detecting failure in driving power supply for elevator Mar. 3, 2009
7479861 Inductively coupled power, useful for wireless elevator hall fixtures Jan. 20, 2009
7464793 Operating unit of elevator at the time of power interruption Dec. 16, 2008
7331426 Elevator system using a supercapacitor as a backup power source Feb. 19, 2008
7316297 Elevator escape device Jan. 8, 2008
7275622 Traction elevator back-up power system with inverter timing Oct. 2, 2007
7246686 Power supply for elevator systems having variable speed drives Jul. 24, 2007
7228942 Method for energy storage for DC motor powered load hoisting machinery Jun. 12, 2007
7227323 Motor driving apparatus Jun. 5, 2007
7165654 Energy storage method for load hoisting machinery Jan. 23, 2007
7104363 Power transmission system for elevator Sep. 12, 2006
7097001 Elevator car door movement restrictor Aug. 29, 2006
7025179 Emergency evacuation system for an elevator Apr. 11, 2006

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