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Class Information
Number: 187/291
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 > Having means for final leveling
Description: Control* having means which (a) begins its operations when a relatively short vertical distance remains between the load-underlying support surface and a landing* at which it is stopping and (b) adjusts the regulating functioning of the control* to accurately align the landing* and load-underlying support surface when fully stopped.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7441631 |
Passive ultrasonic RFID elevator positioning reference system |
Oct. 28, 2008 |
| 7392885 |
Emergency escape apparatus for elevator |
Jul. 1, 2008 |
| 7287625 |
Forklift safety sensor and control system |
Oct. 30, 2007 |
| 7268514 |
Motor control for stopping a load and detecting mechanical brake slippage |
Sep. 11, 2007 |
| 7261185 |
Equipment for fine positioning of a car of a multi-stage car |
Aug. 28, 2007 |
| 7232011 |
Equipment for fine positioning of the cars of a multi-stage car for an elevator |
Jun. 19, 2007 |
| 7051842 |
Emergency moving device of an elevator |
May. 30, 2006 |
| 6464041 |
Emergency lifting or lowering device of an elevator |
Oct. 15, 2002 |
| 6311802 |
Velocity instruction generation apparatus for car of elevator system and velocity control method thereof |
Nov. 6, 2001 |
| 6283252 |
Leveling control device for elevator system |
Sep. 4, 2001 |
| 6206143 |
Elevator landing apparatus |
Mar. 27, 2001 |
| 6196355 |
Elevator rescue system |
Mar. 6, 2001 |
| 6164416 |
Procedure and apparatus for the deceleration of an elevator |
Dec. 26, 2000 |
| 6161652 |
Method and apparatus for controlling elevator cars in a common sling |
Dec. 19, 2000 |
| 6119816 |
Emergency stop releasing method for elevator |
Sep. 19, 2000 |
| 6082498 |
Normal thermal stopping device with non-critical vane spacing |
Jul. 4, 2000 |
| 5889238 |
Deceleration time for an elevator car |
Mar. 30, 1999 |
| 5869795 |
Elevator floor arrival correction control |
Feb. 9, 1999 |
| 5848671 |
Procedure for stopping an elevator at a landing |
Dec. 15, 1998 |
| 5831227 |
Differential magnetic alignment of an elevator and a landing |
Nov. 3, 1998 |
| 5777280 |
Calibration routine with adaptive load compensation |
Jul. 7, 1998 |
| 5686707 |
Elevator control system to land car at floor during abnormal conditions |
Nov. 11, 1997 |
| 5677519 |
Elevator leveling adjustment |
Oct. 14, 1997 |
| 5659159 |
Elevator level control system using elevator/landing gap as a reflection duct |
Aug. 19, 1997 |
| 5637841 |
Elevator system |
Jun. 10, 1997 |
| 5526902 |
Safety device for lifts stopped between floors |
Jun. 18, 1996 |
| 5421432 |
Method and apparatus for controlling and automatically correcting the command for deceleration/stoppage of the cage of a lift or a hoist in accordance with variations in the operating data of |
Jun. 6, 1995 |
| 5159162 |
Elevator leveling control device |
Oct. 27, 1992 |
| 5099957 |
Procedure and apparatus for controlling a hydraulic elevator during approach to a landing |
Mar. 31, 1992 |
| 5085294 |
Elevator control apparatus |
Feb. 4, 1992 |
| 4976338 |
Leveling control system for hydraulic elevator |
Dec. 11, 1990 |
| 4940117 |
Procedure for the tuning of the position controller of an elevator |
Jul. 10, 1990 |
| 4886413 |
Loader platform interface control and stop means |
Dec. 12, 1989 |
| 4785914 |
Elevator system leveling safeguard control and method |
Nov. 22, 1988 |
| 4750589 |
Elevator leveling control |
Jun. 14, 1988 |
| 4719994 |
Floor re-leveling apparatus for elevator |
Jan. 19, 1988 |
| 4674604 |
Elevator inner and outer door zone sensor arrangement |
Jun. 23, 1987 |
| 4520904 |
Elevator leveling signal error and correction |
Jun. 4, 1985 |
| 4518062 |
Procedure and measuring circuit for stopping an elevator |
May. 21, 1985 |
| 4494628 |
Elevator system |
Jan. 22, 1985 |
| 4493399 |
Elevator control system |
Jan. 15, 1985 |
| 4487293 |
Elevator/hatch controller platform leveling logic with safety features |
Dec. 11, 1984 |
| 4466510 |
Automatic floor-leveling means for a cable-suspended elevator |
Aug. 21, 1984 |
| 4463833 |
Elevator system |
Aug. 7, 1984 |
| 4452341 |
Load change responsive elevator speed control apparatus |
Jun. 5, 1984 |
| 4427095 |
Monitoring and controlling lift positions |
Jan. 24, 1984 |
| 4380049 |
Method and apparatus for stopping an elevator |
Apr. 12, 1983 |
| 4364453 |
Safety installation for elevators |
Dec. 21, 1982 |
| 4362224 |
Discrete position location sensor |
Dec. 7, 1982 |
| 4355704 |
Procedure for fine positioning an alternating current lift |
Oct. 26, 1982 |
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