Patent ID: 9593519
Date: 2017-03-14
CPC Classifications: E05D,E05F,E05Y

Claim:
1. Magnetic levitation system for a sliding door or sliding window, comprising: a movable module for a lower part of a sliding door or window, the sliding door or window having a movable frame slidable within a fixed frame, the movable module comprising at least one permanent magnet and the movable frame of the door or window; a plurality of fixed modules for the fixed frame, each of the plurality of fixed modules comprising one or more electromagnets for producing a variable magnetic field repulsive of the magnetic field of said magnets of the movable module; at least a clearance sensor, inserted in each fixed module and placed between the movable frame and the fixed frame; at least two electric connectors; at least one electronic control system; and a control unit designed to maintain a predefined clearance between the movable frame and the fixed frame by controlling the power supplied to the two or more electromagnets; wherein the distance between a fixed module and the movable module varies between 1 mm and 10 mm; and wherein the control unit is configured to activate and deactivate the plurality of electromagnets of the plurality of fixed modules on a module by module basis.