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Class Information
Number: 187/391
Name: Elevator, industrial lift truck, or stationary lift for vehicle > With monitoring, signalling, and indicating means
Description: Subject matter provided with means which senses or keeps track of a physical condition important to the operation of the elevator and transmits notice of a change in this condition to a communication device designed to inform either an individual or a central processor of the change.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5557546 |
Data acquisition system for the analysis of elevator trouble |
Sep. 17, 1996 |
| 5551532 |
Method for transmitting messages in an elevator communications system |
Sep. 3, 1996 |
| 5551533 |
Audio direction and information for elevator passengers |
Sep. 3, 1996 |
| 5549179 |
Cost effective control of the main switches of an elevator drive motor |
Aug. 27, 1996 |
| 5544721 |
Method and apparatus for adjusting an elevator car based on stored horizontal displacement and acceleration information |
Aug. 13, 1996 |
| 5529147 |
Apparatus for controlling elevator cars based on car delay |
Jun. 25, 1996 |
| 5524730 |
Method and apparatus for storing sensed elevator horizontal displacement and acceleration signals |
Jun. 11, 1996 |
| 5522480 |
Measurement pick-up to detect physical characteristics of a lift for people or freight |
Jun. 4, 1996 |
| 5445245 |
System for remote control of elevator equipment |
Aug. 29, 1995 |
| 5443142 |
Elevator door tampering protection system |
Aug. 22, 1995 |
| 5431252 |
Method for digital recording and graphic presentation of the combined performances of elevator cars |
Jul. 11, 1995 |
| 5427207 |
Apparatus for rescuing passengers in a malfunctioning elevator |
Jun. 27, 1995 |
| 5421433 |
Elevator load-weighing at car hitch |
Jun. 6, 1995 |
| 5419414 |
Elevator system with multiple cars in the same hoistway |
May. 30, 1995 |
| 5402861 |
Elevator passenger car and device for evaluating feel of ride in elevator |
Apr. 4, 1995 |
| 5388052 |
Method of operating an induction motor |
Feb. 7, 1995 |
| 5383535 |
Signal transmitting apparatus of elevator |
Jan. 24, 1995 |
| 5373123 |
Electromagnetic gaging of elevator rails and other structures |
Dec. 13, 1994 |
| 5360952 |
Local area network eleveator communications network |
Nov. 1, 1994 |
| 5325022 |
Single, bi-color elevator hall enunciator lantern |
Jun. 28, 1994 |
| 5307903 |
Method and system of controlling elevators and method and apparatus of inputting requests to the control system |
May. 3, 1994 |
| 5306878 |
Method and apparatus for elevator group control with learning based on group control performance |
Apr. 26, 1994 |
| 5306882 |
Measuring elevator hoistway position using audible signals |
Apr. 26, 1994 |
| 5298695 |
Elevator system with varying motion profiles and parameters based on crowd related predictions |
Mar. 29, 1994 |
| 5298697 |
Apparatus and methods for detecting number of people waiting in an elevator hall using plural image processing means with overlapping fields of view |
Mar. 29, 1994 |
| 5286930 |
Variable elevator door dwell time based upon time of notification of assigned car |
Feb. 15, 1994 |
| 5283400 |
Elevator shaftway intrusion device |
Feb. 1, 1994 |
| 5257176 |
Control operation specification setting apparatus for an elevator |
Oct. 26, 1993 |
| 5250766 |
Elevator control apparatus using neural network to predict car direction reversal floor |
Oct. 5, 1993 |
| 5235143 |
Elevator system having dynamically variable door dwell time based upon average waiting time |
Aug. 10, 1993 |
| 5229559 |
Defining the traffic mode of an elevator, based on traffic statistical data and traffic type definitions |
Jul. 20, 1993 |
| 5223680 |
Measuring elevator car position using ultrasound |
Jun. 29, 1993 |
| 5157228 |
Adjusting technique for a digital elevator drive system |
Oct. 20, 1992 |
| 5131508 |
Apparatus for monitoring elevator cages for crime prevention |
Jul. 21, 1992 |
| 5086450 |
Emergency intercommunication system for elevator |
Feb. 4, 1992 |
| 5064026 |
Elevator monitor apparatus |
Nov. 12, 1991 |
| 5042620 |
Elevator control system |
Aug. 27, 1991 |
| 5025895 |
Elevator car top intrusion device |
Jun. 25, 1991 |
| 5027299 |
Elevator testing apparatus |
Jun. 25, 1991 |
| 5023409 |
Elevator control safety device |
Jun. 11, 1991 |
| 5010472 |
Customer participatory elevator control system |
Apr. 23, 1991 |
| 5007506 |
Elevator remote-control method |
Apr. 16, 1991 |
| 5004076 |
Apparatus for controlling an electric elevator |
Apr. 2, 1991 |
| 4979593 |
Elevator controller |
Dec. 25, 1990 |
| 4958707 |
Elevator control system |
Sep. 25, 1990 |
| 4951786 |
Load distribution detecting system for elevator |
Aug. 28, 1990 |
| 4919236 |
Screw lift |
Apr. 24, 1990 |
| 4874063 |
Portable elevator traffic pattern monitoring system |
Oct. 17, 1989 |
| 4872532 |
Signal transmission method and system in elevator equipment |
Oct. 10, 1989 |
| 4832157 |
Displaying device for elevator |
May. 23, 1989 |
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