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Class Information
Number: 187/393
Name: Elevator, industrial lift truck, or stationary lift for vehicle > With monitoring, signalling, and indicating means > Monitors operational parameter
Description: Subject matter wherein the physical condition checked or sensed is one which it is essential for anyone maintaining or using the elevator to know for the safe or proper functioning of the elevator (e.g., position, speed, direction).

Sub-classes under this class:

Class Number Class Name Patents
187/394 Load support position 199

Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
7073633 Device and method for remote maintenance of an elevator Jul. 11, 2006
7017714 Double deck elevator Mar. 28, 2006
7014013 Guiding devices of elevator Mar. 21, 2006
7004289 Elevator performance measuring device and method Feb. 28, 2006
6988594 Elevator door monitoring system Jan. 24, 2006
6981576 Information display system Jan. 3, 2006
6962240 Information display system with occupancy detector Nov. 8, 2005
6886666 Elevator load bearing assembly having a detectable element that is indicative of local strain May. 3, 2005
6854565 Method for monitoring the door mechanism of an elevator Feb. 15, 2005
6809650 Method and device for determining the state of a rail stretch Oct. 26, 2004
6801792 Method for communication with a transportation system Oct. 5, 2004
6786304 Guide for elevator Sep. 7, 2004
6772862 Transportation system operation using identification codes Aug. 10, 2004
6763917 Elevator vibration reduction apparatus including a dead band filter Jul. 20, 2004
6684981 Elevator load bearing assembly having a ferromagnetic element that provides an indication of local strain Feb. 3, 2004
6625934 Method for monitoring environmental conditions in restricted spaces Sep. 30, 2003
6615953 Construction hoist with optical monitoring device Sep. 9, 2003
6603398 Hoistway access detection system Aug. 5, 2003
6591947 Use of multi-state sensors Jul. 15, 2003
6578675 Elevator information and advertising delivery system Jun. 17, 2003
6561319 Elevator information communication system May. 13, 2003
6494295 Method and apparatus for compensating vibrations in elevator cars Dec. 17, 2002
6494296 Device for signaling movement of an elevator car during the evacuation of elevator passengers Dec. 17, 2002
6488127 Elevator information communication system Dec. 3, 2002
6488128 Integrated shaft sensor for load measurement and torque control in elevators and escalators Dec. 3, 2002
6484849 Elevator speed measurement system including reflective signal technology for making speed determinations Nov. 26, 2002
6483047 Elevator brake load weighing system Nov. 19, 2002
6484125 Service information derived from elevator operational parameters Nov. 19, 2002
6450299 Load measuring for an elevator car Sep. 17, 2002
6427808 Elevator information communication system Aug. 6, 2002
6422350 Monitoring device for drive equipment for elevators Jul. 23, 2002
6408987 Elevator guidance device Jun. 25, 2002
6401872 Active guide system for elevator cage Jun. 11, 2002
6401873 Elevator arrangement for setting the starting torque of the motor of an elevator machinery which uses at least one sensor for determining the imbalance moment of car load Jun. 11, 2002
6401875 Absolute position sensing method and apparatus for synchronous elevator machines by detection stator iron saturation Jun. 11, 2002
6349796 Starting drive control for elevator Feb. 26, 2002
6338396 Active magnetic guide system for elevator cage Jan. 15, 2002
6330936 Elevator behavior reported in occurrence-related groups Dec. 18, 2001
6328136 Drive machine for elevators with drive sheave position detector Dec. 11, 2001
6328134 Group management and control system for elevators Dec. 11, 2001
6325179 Determining elevator brake, traction and related performance parameters Dec. 4, 2001
6305503 Load detector for elevator cage Oct. 23, 2001
6286628 Non-linear load detection and compensation for elevators Sep. 11, 2001
6216824 Semi-active elevator hitch Apr. 17, 2001
6196355 Elevator rescue system Mar. 6, 2001
6167991 Method and apparatus for detecting position of an elevator door Jan. 2, 2001
6161656 Speed and direction indicator for elevator systems Dec. 19, 2000
6123176 Rope tension monitoring assembly and method Sep. 26, 2000
6102165 Antifriction bearing with signal generator and method for using same Aug. 15, 2000
6089355 Elevator speed controller Jul. 18, 2000

1 2 3 4 5 6 7

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