Device for transporting particles of magnetic material

B - Operations – Transporting – 65 – G

Patent

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Details

B65G 54/02 (2006.01) B03C 1/12 (2006.01) E21B 7/18 (2006.01) E21B 21/00 (2006.01)

Patent

CA 2427090

A device for transporting particles of a magnetic material in a selected direction, the device comprising a support member having a support surface (21) for supporting the particles, the support surface extending in the selected direction, a magnet (28) arranged to generate a magnetic field retaining the magnetic particles on the support surface, the magnetic field having at least one region (32) of reduced field strength at the support surface relative to a field strength of the magnetic field at the support surface outside said region, and drive means (36) for moving each region of reduced field strength relative to the support surface in a direction having a component in the selected direction.

L'invention concerne un dispositif pour le transport, dans une direction voulue, de particules de matériau magnétique, comprenant un support à surface de soutien (21) pour le soutien des particules. La surface s'étend dans la direction voulue considérée. Le dispositif comprend en outre un aimant (28) produisant un champ magnétique qui retient les particules magnétiques sur la surface de soutien. Le champ magnétique présente au moins une zone (32) d'intensité de champ réduite au niveau de la surface de soutien, par rapport à l'intensité de champ au niveau de la surface de soutien mais en dehors de la zone en question, et le dispositif comprend enfin un système d'entraînement (36) qui permet de déplacer chaque zone à intensité de champ réduite, par rapport à la surface de soutien, selon une direction qui présente une composante dans la direction voulue précitée.

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