Patent ID: 6832449
Filing Date: 2004-12-21
Classification: E05D,E05F,F16C,H02K

Abstract:
A door suspension system comprising:at least one rail support adapted to be attached to a door frame above a doorway opening; an elongated rail mounted on said at least one rail support; at least two brackets each having a connector attached to a respective support block, each said support block having a opening formed therein receiving at least a portion of said rail; a support piece attached to said connectors and provided with connection means adapted to be attached to a door for suspending the door in the doorway opening; and an elongated magnetic way attached to one of said at least one rail support and said support piece and a primary of a linear motor attached to the other one of said at least one rail support and said support piece, said magnetic way and said linear motor primary being positioned to generate an attraction force therebetween whereby when a door is attached to and suspended by said connection means, said attraction force adapted to cancel at least partially a weight of the door.