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Class Information
Number: 187/248
Name: Elevator, industrial lift truck, or stationary lift for vehicle > Having computer control of elevator > Includes redundant circuitry
Description: Subject matter also having a secondary central processing unit, components of the control*, or means for carrying electric current therebetween which assumes the function of its equivalent in response to the failure of either the primary central processing unit, components of the control*, or means for carrying electric current therebetween.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7438158 |
Safety monitoring device with instantaneous speed determination for a lift car |
Oct. 21, 2008 |
| 7237653 |
Elevator controller |
Jul. 3, 2007 |
| 6173814 |
Electronic safety system for elevators having a dual redundant safety bus |
Jan. 16, 2001 |
| 5936211 |
Elevator control system |
Aug. 10, 1999 |
| 5884729 |
Apparatus and method for controlling a plurality of elevator cars |
Mar. 23, 1999 |
| 5638295 |
Transfer switch system with subnetwork |
Jun. 10, 1997 |
| 5387769 |
Local area network between an elevator system building controller, group controller and car controller, using redundant communication links |
Feb. 7, 1995 |
| 5360952 |
Local area network eleveator communications network |
Nov. 1, 1994 |
| 5298696 |
Elevator car assignment using a plurality of calculations |
Mar. 29, 1994 |
| 4719993 |
Control apparatus for elevator |
Jan. 19, 1988 |
| 4567560 |
Multiprocessor supervisory control for an elevator system |
Jan. 28, 1986 |
| 4473135 |
Apparatus for controlling an elevator |
Sep. 25, 1984 |
| 4350225 |
Elevator control system |
Sep. 21, 1982 |
| 4345670 |
Elevator control system |
Aug. 24, 1982 |
| 4326606 |
Apparatus for controlling rescue operation of an elevator |
Apr. 27, 1982 |
| 4308935 |
Autonomous elevator cab operation |
Jan. 5, 1982 |
| 4210226 |
Elevator control apparatus |
Jul. 1, 1980 |
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