Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Reexamination Certificate
2007-12-27
2011-10-04
Mai, Anh (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Magnet structure or material
C174S350000, C336S08400R, C336S08400R
Reexamination Certificate
active
08031039
ABSTRACT:
It is an object of the present invention to provide a separate type magnetic shield apparatus which has high access performance to a magnetically shielded space, in which magnetic shielding is very effectively achieved. In the separate type magnetic shield apparatus, first and second conductors10aand10bextending in the longitudinal axial line direction are provided on a curved magnetic shield outer side wall3of a first magnetic shield side wall body2A at up and down symmetrical positions relative to the longitudinal plane Hp passing through the longitudinal axial line of the cylindrical space S to cause current to flow therethrough; first and second conductors10cand10dextending in the longitudinal axial line direction, on the curved magnetic shield outer side wall3of the second magnetic shield side wall body2B, at up and down symmetrical positions relative to the horizontal plane Hp passing through the longitudinal axial line of the cylindrical space S to cause current to flow therethrough; and magnetic fluxes H coming horizontally to the first magnetic shield side wall body2A and to the second magnetic shield side wall body2B are deflected up and down by means of magnetic fields produced around the first and second conductors10a,10b,10cand10d, thereby preventing magnetic fluxes from flowing into the cylindrical space S.
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Sasada Ichiro
Takeda Toshikazu
Kyushu University, National University Corporation
Mai Anh
Musleh Mohamad
Nippon Steel Composite Co., Ltd.
Panitch Schwarze Belisario & Nadel LLP
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