A mobile device for traversing a ferromagnetic surface. The device includes a frame and at least one surface contacting device attached to the frame. The device also includes a Halbach magnet array attached to the frame, wherein the Halbach magnet array provides a magnetic force to maintain the surface...http://www.google.fr/patents/US20050005812?utm_source=gb-gplus-shareBrevet US20050005812 - Robotic apparatuses, systems and methods
Numéro de demande: 10/912,437 Numéro de publication: US 2005/0005812 A1 Date de dépôt: 5 août 2004 Brevet délivré: US7099746 ( Date de délivrance 29 août 2006)
