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Class 187/277 - With specific electrical component


Subclass of Class 187 - Elevator, industrial lift truck, or stationary lift for vehicle
Definition: Subject matter wherein the control* is provided with
No. of applications: 28
Last issue date: 01/12/2012


Application No.Application TitleIssue Date
20120006628ELEVATOR SYSTEM
An elevator system in which a controller monitors whether or not a speed of an ascending/descending body reaches a preset overspeed. At a time of maintenance work, a stopper is interposed between a buffer and the ascending/descending body to limit a lowered position of ...
01/12/2012
20110048861HOIST POSITIONING SYSTEM AND METHOD
A hoist positioning system includes an accelerometer attached to a hoist, a control unit for processing signals from the accelerometer and comparing the processed signals with reference data to determine a position of the hoist, a drive system for moving the hoist up an...
03/03/2011
20100300815MOVEMENT CONTROL OF AN ELEVATOR SYSTEM
A determination of the loading state of an elevator system and also a method for determining the loading state of an elevator system is described. The elevator system includes an elevator car and also a motor drive for moving the elevator car. The loading state of the e...
12/02/2010
20100219022ELECTRIC MOTOR DRIVE
The invention relates to a switch arrangement of an electric motor drive (1). The electric motor drive comprises safety switches (3) determined by the safety of the drive, a controlled mechanical brake (4), a power supply circuit (5) of the b...
09/02/2010
20100072001THERMOELECTRIC TEMPERATURE CONTROL WITH CONVECTIVE AIR FLOW FOR COOLING ELEVATOR COMPONENTS
Components of an elevator system are cooled using natural convective airflow in conjunction with thermoelectric heating and cooling. Rising air within the hoistway is funneled into a cold air duct (20) and a warm air duct (22). As air flows vertically upwa...
03/25/2010
20090255763Detection Platforms
Platforms for detecting, identifying and/or designating objects. Platforms according to one embodiment of the invention include an extendable mast connected to a skid via a linkage that allows pivoting of the mast with respect to the skid, and preferably does not permit...
10/15/2009
20090101449Elevator Drive
Disclosed are an elevator drive, a clamping arrangement for an elevator machine, a braking mechanism for an elevator system, and a rotor fixture for an elevator machine. The inventive elevator drive is subdivided into a number of segments, to each of which a converter i...
04/23/2009
20090000877Managing an Encoder Malfunction in an Elevator Drive System
An encoder failure in an elevator drive system is detected and managed. A velocity of the elevator drive system is provided by an encoder signal (60) and compared with a minimum velocity threshold (62). An encoder fault timer is incremented when the veloci...
01/01/2009
20080185232LIFT AND METHOD OF MONITORING A LIFT
A lift drive unit has at least one monitoring device for monitoring unallowed raising of a lift cage. The drive unit has a motor unit and a deflecting unit. If a counterweight supported by the deflecting unit, for example rests on a shaft pit buffer, the deflecting unit...
08/07/2008
20070295563Elevator Operation Control Device
An elevator operation control device has a component temperature detecting portion for detecting a temperature of a drive device, and a component-protective operation control portion for restraining an elevator from operating in accordance with the temperature detected ...
12/27/2007
20070227827Emergency Device For The Raising Or Lowering Of Elevators Trapped Between Floors
The invention relates to an emergency device for the raising or lowering of elevators trapped between floors comprising a first geared motor (1) transmitting a rotational movement to the output shaft of the traction machine (3) of the car of the elevator i...
10/04/2007
20070199770ELEVATOR INSTALLATION WITH A LINEAR DRIVE SYSTEM AND LINEAR DRIVE SYSTEM FOR SUCH AN ELEVATOR INSTALLATION
An elevator installation has an elevator car and a permanent magnet linear drive system with a stationary part and a movable part, which moves along the stationary part when the permanent magnet linear drive system is controlled in a drive mode. The elevator car is arra...
08/30/2007
20070131485Control structure of ball screw type elevator
The rolling friction force of ball screw is much small than the sliding friction force of it. Using ball screw as the transmission mechanism for elevator, so as to find the differences of friction forces between rolling motion and sliding motion. Besides, the current of...
06/14/2007
20070056804Lifting device especially a lift or a lifting platform
The invention relates to a lifting device, especially a lift or a lifting platform, comprising a displacement unit (1, 6, 7, 8) for at least partially displacing a load in a vertical manner. The displacement device (1, 6, 7, 8) comprises at least one first...
03/15/2007
20070039783Tapered coupler for coupling a motor to a hoist machine
There is disclosed a coupling arrangement for coupling a motor to a hoist machine. The coupling arrangement comprises a first drum flange comprising an outer body having a first end and a second end, and an inner wall surface defining a cavity of substantially circular ...
02/22/2007
20060249333Elevator system
An elevator system (20) including: an elevator car assembly (2); and a cable (7) interconnecting the assembly (2) with a counterweight (8), wherein the cable (7) is coupled to the assembly (2) at a lower region (23...
11/09/2006
20050269162Elevator device
An elevator comprises a car (3) placed in a elevator shaft (15) so as to move vertically along a pair of car guide rails (2a, 2b), and a counterweight (10) placed in the elevator shaft (15) so as to move vertically...
12/08/2005
20050241883System and method for detecting motor run condition
A motor control system for detecting motor run condition comprises power switches for connection to an AC line for controlling application of AC power to the motor. An input receives a motor start command. A controller is connected to the input and controls operation of...
11/03/2005
20050230191Safety monitoring device for a lift car
The invention relates to a safety monitoring device for a lift car which can be moved in a lift shaft by means of a traction drive via a lift control system and whose instantaneous position can be registered by means of a position registering device which supplies two p...
10/20/2005
20050224296Energy efficient variable speed drive for elevator systems
An improved system of variable speed drives that enhances the energy efficiency of an elevator system by enabling power transfer between the variable speed drives of two or more elevators via a common DC bus. Any combination of regenerative and non-regenerative variable...
10/13/2005
20050217945Elevator control device
An elevator control device for controllably driving multiple traction units includes position sensors and current supplies. Each of the current supplies includes a position controller for generating a speed command for the corresponding traction unit based on input diff...
10/06/2005
20050217946Elevator group control method
The invention concerns a method for controlling the elevators in an elevator group when destination floor call input is used and the traffic within the elevator group is to be optimized. According to the inventive concept of the method, based on traffic intensity, a cos...
10/06/2005
20050189179Boom lift vehicle and method of controlling lifting functions
A boom lift vehicle includes a tower boom pivotally coupled at one end to a vehicle base for tower lift function and rotatable relative to the vehicle base for swing function. A main boom is pivotally coupled to an opposite end of the tower boom for main lift function. ...
09/01/2005
20050173197Method for energy storage for DC motor powered load hoisting machinery
A method for energy storage and recovery for load hoisting equipment driven by a diode controlled DC motor and having an inverter controlling an induction motor which drives a flywheel whereby, utilizing rest power such as reverse power from the DC motor when lowering a...
08/11/2005
20050173198Energy storage method for load hoisting machinery
A method for energy storage and recovery for load hoisting equipment powered by an induction hoist motor controlled by a first inverter and having a dual inverter controlling a capacitor utilizing rest power such as reverse power generated from the motor when lowering a...
08/11/2005
20050087400Electric motor, elevator with a car movable by an electric motor, and elevator with a car and with an electric motor for movement of a guide element relative to the car
An electric motor includes a primary part for producing a traveling magnetic field and a secondary part for providing a static magnetic field, wherein the secondary part and the primary part are movable relative to one another under an effect of the travelling magnetic ...
04/28/2005
20050045429Coordinated lift system with user selectable RF channels
A coordinated lift system with user selectable RF channels coordinates the raising and lowering of a vehicle relative to a surface by using wireless communications. The lift system includes at least two lift mechanisms each having support frame, including a post, a carr...
03/03/2005
20050000754System of enhancing air quality used for buildings
A system of enhancing air quality for buildings is proposed. The system includes a multi level building having a hoistway vertically extending through at least two levels of the building, for receiving a car vertically moving therein.. The system further includes at lea...
01/06/2005
 
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