Patent ID: 7193495

Claim:
A magnetically influenced device, comprising: a first, external tubular body comprising an anisotropic magnetisable material; a second, internal tubular body comprising the anisotropic magnetisable; an additional tubular body which provides an external core which is mounted outside of and concentric with the first, external tubular body along a common axis; at least one first electrical conductor wound round the tubular bodies for at least one turn to form a first main winding; and at least one second electrical conductor mounted in a gap between the first and the second bodies and wound around the common axis for at least one turn to forms a control winding, wherein the tubular bodies each provide a closed magnetic circuit, wherein a winding axis for the turn in the main winding-is at right angles to a winding, axis for the turn in the control winding, wherein orthogonal magnetic fields are generated in at least one of the first body and the second body when the first main winding and the control winding are excited, and wherein a characteristic of the anisotropic magnetisable material relative to the field in the main winding is controlled by means of a field in the control winding.