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7631731 Elevator  
The present invention relates to an elevator and a method for measuring the load in an elevator, in which the elevator car is suspended on hoisting ropes with at least one upward-directed diverting...
7617912 Method and apparatus for operating an elevator system  
A method of operating an elevator system with a drum for taking up a suspension device, a drive unit for driving the drum, and a control unit for controlling the drive unit, includes operating the...
7614481 Elevator apparatus including a safety control portion that detects an abnormality  
In an elevator apparatus, a car is mounted with an safety device for bringing the car to an emergency stop. A drive unit for raising and lowering the car is controlled by a drive control portion. A...
7614482 Elevator rope slip detector and elevator system  
In an elevator apparatus, a pulley is provided in a hoistway. A rope that moves together with the movement of a car is wound around the pulley. Further, the pulley is provided with a pulley sensor...
7604096 Operation device for elevator  
An operating apparatus for an elevator is equipped with a landing chair having a storable seat portion and provided at a landing, a landing chair displacement device for displacing the seat...
7588127 Elevator rail joint detector and elevator system  
In an elevator apparatus, a guide rail has a plurality of unit rails that are vertically connected to each other. A car is provided with a rail joint detecting device mounted on the car, for...
7581621 Method and apparatus for controlling advance opening of doors in an elevator  
A method and an apparatus controls advance opening of doors in a double-deck elevator, in which elevator a car frame supporting the elevator cars is moved by means of a set of hoisting ropes by a...
7578373 Elevator rope slip detector and elevator system  
In an elevator apparatus, a pulley is provided in a hoistway. A rope that moves together with the movement of a car is wound around the pulley. Further, the pulley is provided with a pulley sensor...
7575102 Safety device of elevator and its operation testing method  
In an elevator safety device, a brake device puts brakes to brake a car through an operation of a safety relay main contact provided to a safety circuit. When the car stops during normal...
7577495 Speed monitoring method in an automation system for a conveyor installation  
The invention relates to a speed monitoring method in a automation system for a conveyor installation, particularly for a pit. A speed monitoring method is provided that eliminates the need for...
7571791 Device and method for self-aligning position reference system  
A positioning system for a moveable platform comprising at least one active array comprised of at least one light emitting element for transmitting a binary encoded identification, where the...
7546907 Method for operating an elevator installation  
A method for the operation of an elevator installation, wherein the operating parameters for achieving a desired performance are determined by simulation of the operation of the elevator...
7540356 Method and apparatus to prevent or minimize the entrapment of passengers in elevators during a power failure  
The invention provides a system and method for handling power outages in a multiple car elevator system in a building having a plurality of floors. The system includes an energy calculator...
7503432 Elevator control using clock signal  
An elevator control device has: a processing portion for controlling an operation of an elevator based on a clock signal; and a detection portion for comparing the number of edges of the clock...
7500650 Safety circuit for lift doors  
An improved lift system door control or safety circuit utilizes locking devices for the lift shaft doors and lock sensors to monitor the status of the locking devices. The lock sensors are coupled...
7497303 Method for setting the parameters of motor control systems of hoisting equipment  
A method for setting the parameters of electronic motor controls of hoisting equipment with a control mechanism ( 10 ) for the hoisting equipment with at least one hoisting switch ( 5 ), one...
7497304 Device for detecting failure in driving power supply for elevator, and method for detecting failure in driving power supply for elevator  
In a feeder circuit for operating a safety device of an elevator, a charging capacitor for actuating an actuator through discharge is employed. A failure detecting device for detecting the presence...
7493834 Load cell for elevators and similar  
The Invention relates to a load cell which is designed to be coupled a flat belt-or similar-type elements for lifting elevators or similar. The inventive cell comprises a cell body ( 1 ) and a...
7484598 Positioning method in an elevator system  
The present invention presents a method and a system for the positioning of the elevator car and the door of the elevator in the condition monitoring system. In the method the accelerations of the...
7434666 Method and system for measuring the stopping accuracy of an elevator car  
The invention relates to a condition monitoring method and a corresponding system for measuring the stopping accuracy of an elevator car. In the invention, a door zone is defined for each floor, a...
7431130 Group controller of elevators  
In an elevator group supervisory control apparatus, an estimation processing unit determines an estimated in-cage load in departing from a departure floor and estimates at least one of speed,...
7424934 Method for vibration damping at an elevator car  
A method for designing a regulator uses a predetermined overall model of an elevator car with known structure. The model parameters are known to greater or lesser extent or estimations are present,...
7398864 Elevator controller  
In an elevator control apparatus, a power supply voltage monitoring circuit monitors a power supply voltage supplied to a processing portion. A voltage monitoring soundness checking function...
7353916 Elevator supervision  
A method and system for supervising the safety of an elevator having a car driven by a drive within a hoistway wherein a travel parameter (X ABS ,X″ Acc ,X′ IGB ) of the car is sensed and...
7350625 Shaft door monitoring system for an elevator installation  
A shaft monitoring system for an elevator installation includes a contactless sensor enabling recognition from the elevator car whether a shaft door lock and a shaft door leaf are in a correct...
7350883 Detecting elevator brake and other dragging by monitoring motor current  
Elevator brake or other drag is checked by establishing ( 10 - 13 ) baseline motor currents at plural determined positions as the car is moved up and down both empty and with full load. In a normal...
7350624 Safety system for an elevator structure  
Safety system of an elevator installation, with a control unit, a bus node, a safety element and a bus, which enables a communication between the control unit and the bus node. The bus node...
7350626 Power-on-reset of elevator controllers  
An elevator ( 9 ) includes remote elevator monitoring equipment ( 10 ) connected by a communication linkage ( 12 ) to a central elevator monitoring and control station ( 11 ). Main, drive, and door...
7325657 Elevator installation and monitoring system for an elevator installation  
An elevator installation with an elevator car moveable in an elevator hoistway by means a drive unit is controlled by a control unit. Sensors monitor the status of the elevator installation and are...
7267203 Elevator including operation, atmospheric pressure and rescue control  
In an elevator system having an elevator control unit and an atmospheric pressure control unit, an elevator operation state monitor monitors the operation state of the elevator control unit, and an...
7252180 Situation-dependent reaction in the case of a fault in the region of a door of an elevator system  
An elevator system includes an elevator car having a car door, a drive unit for moving the elevator car along an elevator shaft wall provided with shaft doors and a controller for controlling...
7237656 Elevator load weighing device  
An improved measuring device for measuring the load of an elevator including a car suspended by a tension member within a hoistway, a termination ( 36 ) at one end of the tension member ( 28 ), a...
7228943 Elevator apparatus with position correction for overspeed detection  
An elevator apparatus has a criterion (overspeed levels) that changes in accordance with an operational condition of a car. The elevator apparatus also has a position information correcting means...
7222698 Elevator arrangement  
The present invention relates to a method and a system for testing the condition of the brakes of an elevator. In the method, a test weight is set to apply to the drive machine of the elevator, by...
7140470 Safety system for monitoring the state of elevator landing doors  
To render the elevator landing doors fitted with an elevator control unit ( 5 ) safe, this system comprises: elevator landing door surveillance units ( 10 ), installed on each elevator landing...
7123030 Method and apparatus for detecting elevator rope degradation using electrical resistance  
A method and system for detecting or measuring defects in an elevator rope having electrically conductive tension members, whereby measured electrical resistance in the tension members is...
7073633 Device and method for remote maintenance of an elevator  
A device for remote maintenance and monitoring of an elevator installation has at least one input for the detection of first signals from an elevator control and/or from a sensor, at least one...
7017714 Double deck elevator  
There is provided a double-deck elevator which does not cause any impacts or vibrations on each cage when adjusting the spacing in the vertical direction between upper and lower cages. Loads on an...
7014013 Guiding devices of elevator  
A device, which is provided at a car, for guiding the car along guide rails, the device comprises, a non-contact type of actuator configured to generate a magnetic force which keeps the actuator...
7004289 Elevator performance measuring device and method  
The elevator performance meter is an embedded processor device specifically designed to measure the variations in velocity, acceleration, jerk and run duration as an elevator ascends and descends...
6988594 Elevator door monitoring system  
A monitoring system for monitoring doors such as a shaft or cabin door, of a lift installation includes a sensor element associated with the doors for monitoring the state or position of the door....
6962240 Information display system with occupancy detector  
A system for displaying content includes a display visible to viewers present in a viewing zone and an occupancy detector for providing occupancy data indicative of how many viewers are present in...
6886666 Elevator load bearing assembly having a detectable element that is indicative of local strain  
A load bearing member, such as a polymer cord reinforced belt, includes at least one element of a different material having a characteristic that distinguishes it from the polymer fibers that make...
6854565 Method for monitoring the door mechanism of an elevator  
The invention relates to a method for monitoring the condition of the door of an elevator and determining its need for maintenance, the door comprising a door mechanism, door panels and a door...
6809650 Method and device for determining the state of a rail stretch  
A method and a device for determining the state of a rail stretch utilize a receiver that is moved along the rail stretch to receive radio signals transmitted by at least three transmitters mounted...
6801792 Method for communication with a transportation system  
A method for communication with a transportation system utilizes a human-machine interface with a control unit that constantly checks for the presence of contactlessly communicating information...
6786304 Guide for elevator  
A guide device for an elevator in which a pair of corresponding actuators are controlled by controllers in accordance with information from acceleration sensors, and the force with which guide...
6772862 Transportation system operation using identification codes  
A system for transporting persons/goods in elevator installations and/or on escalators includes a control device and a computer program product for commanding the system. At least one person/goods...
6763917 Elevator vibration reduction apparatus including a dead band filter  
A vibration reduction apparatus for an elevator includes acceleration sensors for detecting vibrations of a elevator car, controllers for calculating forces to be applied to the elevator car, based...
6684981 Elevator load bearing assembly having a ferromagnetic element that provides an indication of local strain  
An elevator load bearing assembly, such as a polymer cord, reinforced belt, includes at least one element of a ferromagnetic material associated with each cord that comprises one or more...
Matches 1 - 50 out of 215 1 2 3 4 5 >