Patent application number | Description | Published |
20080283341 | ELEVATOR SYSTEM - The invention relates to an elevator system and a method for reducing total power in an elevator system. According to the invention, the elevator system comprises at least one elevator without counterweight for moving people and/or goods, which elevator without counterweight comprises a power converter unit, an elevator motor, a traction sheave, a set of hoisting ropes and an elevator car, and which elevator system comprises means for storing mechanical energy and discharging an energy storage. | 11-20-2008 |
20080296097 | GUIDE-RAIL BRAKE - Guide-rail brake ( | 12-04-2008 |
20090120725 | Elevator arrangement - The present invention discloses an arrangement and a method for controlling the power supply of the load of an elevator system. The arrangement comprises at least a monitoring unit ( | 05-14-2009 |
20090133965 | METHOD AND SYSTEM FOR DETECTING AND STOPPING UNCONTROLLED MOVEMENT OF AN ELEVATOR CAR IN AN ELEVATOR - Method and system for detecting and stopping uncontrolled movement of the car ( | 05-28-2009 |
20090167218 | METHOD AND APPARATUS FOR BRAKING A MOTOR - The invention relates to a method and an arrangement for braking a synchronous motor ( | 07-02-2009 |
20090178889 | ELEVATOR SYSTEM - The invention relates to a safety arrangement of an elevator system and to a method for ensuring safety in an elevator system. The safety arrangement comprises at least one mechanical stopping appliance and the control of the safety arrangement comprises at least one limit value that sets the speed, deceleration or permitted vertical distance from the door zone of the elevator car. In the method for ensuring safety in an elevator system at least one mechanical stopping appliance is fitted to the safety arrangement of the elevator system and at least one limit value that sets the speed, deceleration or permitted vertical distance from the door zone of the elevator car is set for the control of the safety arrangement. | 07-16-2009 |
20090321192 | ELEVATOR SAFETY DEVICE - The invention relates to an elevator safety arrangement and a method for implementing safety spaces in an elevator shaft. The safety arrangement of the invention comprises a mechanical safety device which can be set to a working position to ensure a sufficient safety space in the elevator shaft and an electric safety system for identifying the operating state of the mechanical safety device. According to the method of the invention, detectors comprised in the electric safety system are read by an electric safety controller and, when a functional deviation is detected, one or more stopping devices are actuated to bring the elevator system into a safe operating state. | 12-31-2009 |
20100066248 | CONTROL OF THE LIGHTING OF AN ELEVATOR CAR - The invention relates to a control ( | 03-18-2010 |
20100219022 | ELECTRIC MOTOR DRIVE - The invention relates to a switch arrangement of an electric motor drive ( | 09-02-2010 |
20110114422 | ELEVATOR SAFETY ARRANGEMENT HAVING SAFETY SPACES - An elevator safety arrangement and a method for implementing safety spaces in an elevator has a mechanical safety device which can be set to a working position to ensure a sufficient safety space in the elevator shaft and an electric safety system for identifying the operating state of the mechanical safety device. An electric safety controller comprises means for measuring the total resistance of a series circuit. The method includes reading the number of landing doors open by means of detectors fitted in conjunction with the landing doors, reading the number of elevator car doors open by means of detectors fitted in conjunction with the elevator car doors, and reading the position of a mechanical safety device by means of detectors fitted in conjunction with the mechanical safety device. If it is established that number of landing doors open is greater than the number of elevator car doors open, then setting the safety system into a ‘person in shaft’ state and preventing operation of the elevator. If it is established during the ‘person in shaft’ state of the safety system that the number of landing doors open is equal to the number of elevator car doors open and that the mechanical safety device has been set to a working position, then allowing maintenance operation. | 05-19-2011 |