Patent ID: 6963261

Claim:
Magnetic module ( 1 ) characterised in that it has at least one axially extending head ( 3 ) equipped with a system for enabling a magnetic force for anchoring said magnetic module ( 1 ) to a ferromagnetic surface, said at least one head ( 3 ) comprising:—a multipolar magnetic stator ( 9 ) coaxial to the head ( 3 ), said magnetic stator ( 9 ) having a magnetically enabled multipolar statoric surface ( 21 ) for magnetic anchoring to said ferromagnetic surface, said statoric surface ( 21 ) being formed by an arrangement of magnetically induced magnetic poles that alternately have a magnetic polarity of opposite sign; —a multipolar magnetic rotor ( 11 ) coaxial to the multipolar magnetic stator ( 9 ), said magnetic rotor ( 11 ) having a multipolar rotoric surface ( 33 ) opposite to the multipolar statoric surface ( 21 ) and formed by an arrangement of magnetic poles that alternately have a magnetic polarity of opposite sign; said arrangement of poles of the multipolar rotoric surface ( 33 ) being specular to that of the multipolar statoric surface ( 21 ); said magnetic rotor ( 11 ) being revolving around the axis of the head ( 3 ) between a position that fully enables said multipolar statoric surface ( 21 ), in which every magnetic pole of the multipolar statoric surface ( 21 ) is faced to a corresponding magnetic pole of identical sign of the multipolar rotoric surface ( 33 ) so that the magnetic flux generated by the magnetic stator ( 9 ) and magnetic rotor ( 11 ) are added together and short-circuited through said ferromagnetic surface, and a fully-disabled position of said multipolar statoric surface ( 21 ), in which every magnetic pole of the multipolar statoric surface ( 21 ) is faced to a corresponding magnetic pole of opposite sign of the multipolar rotoric surface ( 33 ) so that the magnetic flux generated by the magnetic stator ( 9 ) is entirely short-circuited by the magnetic rotor ( 11 ).