Patent ID: 6885536
Filing Date: 2005-04-26
Classification: H01F,H02K

Abstract:
1. An apparatus comprising first and second sections supported for relative movement, said first section having a plurality of first portions which extend along respective different axes, and said second section having a plurality of approximately annular second portions which each extend around a respective said axis and which each have a respective said first portion extending movably therethrough, each said second portion and the first portion extending therethrough being a respective pair, wherein said portions of each said pair can each generate a respective magnetic field, the magnetic field generated by one of said portions of each said pair being a function of an electrical signal, the magnetic field generated by said second portion of each said pair being approximately annular, and interaction of magnetic fields generated by said portions of each said pair urging movement of the first portion thereof relative to the second portion thereof in a direction approximately along said axis associated with the first portion.