Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2007-04-24
2010-12-14
Patidar, Jay M (Department: 2858)
Electricity: measuring and testing
Magnetic
Displacement
C324S207170
Reexamination Certificate
active
07852069
ABSTRACT:
An angle detector including an annular stator board (1); a plurality of stators (5) provided on the annular stator board (1) independently of one another and forming slots (10) at constant or various intervals; a magnetic core (11) formed on surfaces of the stators (5); stator windings (4) formed around the magnetic cores (11) and composed of excitation windings (4a) and output windings (4b); a magnetic flux return path plateau (12) provided on each of the surfaces of the stators (5) and provided inward or outward of the stator windings (4); an annular rotor board (6) provided on the magnetic flux return path plateaus (12); and a gap forming board (13) provided on an inner surface (6a) of the annular rotor board (6) and having a board inner surface (13a) whose protrusion state changes according to a waveform. The annular rotor board rotates to cause changes in a gap (14) between each of the magnetic cores (11) and the board inner surface (13a) of the gap forming board (13).
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International Search Report issued May 22, 2007 in the International (PCT) Application of which the present application is the U.S. National Stage.
Kikuchi Yoshimi
Kitazawa Kanji
Kubota Yonezo
Mimura Hisashi
Okada Masahito
Patidar Jay M
Tamagawa Seiki Kabushiki Kaisha
Wenderoth , Lind & Ponack, L.L.P.
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