The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2007
Filed:
Jun. 19, 2002
Fabrizio Donazzi, Milan, IT;
Paolo Maioli, Crema, IT;
Yuri A. Dubitsky, Milan, IT;
Vladimir I. Petinov, Moscow, RU;
Robert S. Kasimov, Moscow, RU;
Fabrizio Donazzi, Milan, IT;
Paolo Maioli, Crema, IT;
Yuri A. Dubitsky, Milan, IT;
Vladimir I. Petinov, Moscow, RU;
Robert S. Kasimov, Moscow, RU;
Pirelli & C. S.p.A., Milan, IT;
Abstract
A method for shielding the magnetic field generated by an electrical power transmission line having at least one electrical cable. A magnetic shield is provided in a position radially external to at least one electrical cable. The magnetic shield has at least one pair of shielding layers made from different ferromagnetic materials, radially superimposed and having their maximum relative magnetic permeability increasing in a radial direction from the inside toward the outside of the magnetic shield. An electrical power transmission line provided with multiple-layer magnetic shield and a multiple-layer magnetic shield.