Electricity: electrical systems and devices – Demagnetizing systems and processes
Reexamination Certificate
2008-05-27
2008-05-27
Leja, Ronald W (Department: 2836)
Electricity: electrical systems and devices
Demagnetizing systems and processes
Reexamination Certificate
active
07379287
ABSTRACT:
A canceling exciting coil is supported by a coil supporting member of electrically insulating material fitted to an arch core. A canceling current Ic of opposite phase to a main current I flowing in the magnetic field generation circuit of the exciting coil by means of an exciting circuit is made to flow in a canceling magnetic field generation circuit provided with a canceling exciting coil, and generates canceling flux Mc. The idle component of the AC voltage generated in the canceling exciting coil is minimized by changing the number of turns n, coil inner area, and winding distribution of the canceling exciting coil, and adjusting canceling current Ic.
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English Language Abstract of JP2001-5315.
Greenblum & Bernstein P.L.C.
Leja Ronald W
Matsushita Electric - Industrial Co., Ltd.
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