Patent ID: 7623013
Filing Date: 2009-11-24
Classification: A63H,H02K,Y10S

Abstract:
1. An electromagnetic moving system comprised of a stator, at least one moving body and a controller, wherein: (i) said stator comprised of a circuit board with at least two layers of electrically connected coil windings spaced apart in a series way and made as spirals with a center and a peripheral points; (ii) each of said spirals has a magnetic axis substantially perpendicular to the plane of the corresponding coil winding; (iii) said spirals of one layer are shifted in respect to said spirals of the adjacent layer along the line connecting said center points in such a way thus the center points of said spirals of said one layer in transparent view are located between two nearest spirals of the adjacent layer; (iv) each of said spirals of one layer in transparent view at least partially overlaps two nearest spirals of the adjacent layer; (v) each of said magnetic axes of said coil windings of one layer has an opposite direction in respect to the magnetic axis direction of two nearest coil windings of the adjacent layer when powered; (vi) each of said center and a peripheral points of spirals of one layer is electrically connected through said circuit board by internal via's with each of said peripheral and center points of spirals of the adjacent layer correspondingly; (vii) said moving body is comprised of at least one permanent magnet such as to cause interaction with said stator when it is powered, thus creating a force tending to propel said moving body along said line connecting said center points.