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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:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 6494296 |
Device for signaling movement of an elevator car during the evacuation of elevator passengers |
Dec. 17, 2002 |
| 6494295 |
Method and apparatus for compensating vibrations in elevator cars |
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 |
| 6401875 |
Absolute position sensing method and apparatus for synchronous elevator machines by detection stator iron saturation |
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 |
| 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 |
| 6328134 |
Group management and control system for elevators |
Dec. 11, 2001 |
| 6328136 |
Drive machine for elevators with drive sheave position detector |
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 |
| 6079521 |
Measuring elevator position with scanning laser beam |
Jun. 27, 2000 |
| 6073728 |
Method and apparatus to inspect hoisting ropes |
Jun. 13, 2000 |
| 5992574 |
Method and apparatus to inspect hoisting ropes |
Nov. 30, 1999 |
| 5979607 |
Multiple level building with an elevator system operable as a means of emergency egress and evacuation during a fire incident |
Nov. 9, 1999 |
| 5959266 |
Elevator speed control apparatus |
Sep. 28, 1999 |
| 5952627 |
Apparatus and method for detecting malfunction of hall fixtures in an elevator |
Sep. 14, 1999 |
| 5945644 |
Apparatus and method for controlling emergency operation in elevator system |
Aug. 31, 1999 |
| 5929400 |
Self commissioning controller for field-oriented elevator motor/drive system |
Jul. 27, 1999 |
| 5923004 |
Method for continuous learning by a neural network used in an elevator dispatching system |
Jul. 13, 1999 |
| 5909018 |
Automatic fine-tuning of rotor time constant and magnetizing current in field-oriented elevator motor drive |
Jun. 1, 1999 |
| 5896949 |
Apparatus and method for the damping of oscillations in an elevator car |
Apr. 27, 1999 |
| 5890564 |
Apparatus to inspect hoisting ropes |
Apr. 6, 1999 |
| 5886308 |
Rope speed monitoring assembly and method |
Mar. 23, 1999 |
| 5886307 |
Safety detection system for sliding doors |
Mar. 23, 1999 |
| 5883344 |
Automatic calibration of field-oriented elevator motor drive parameters using standstill motor measurements |
Mar. 16, 1999 |
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