Patent ID: 7582998

Claim:
An apparatus for the generation of a unidirectional electrical signal, comprising: first and second, opposed, spaced apart, generally parallel, rotor discs oriented generally perpendicular to a center axis of the rotor discs, and mutually defining a gap therebetween, the first rotor disc carrying a first plurality of equiangularly, circumferentially spaced apart bar magnets, and the second rotor disc carrying a second plurality of equiangularly, circumferentially spaced apart bar magnets, respective ones of the second plurality of bar magnets being magnetically aligned with respective ones of the first plurality of bar magnets to provide a generally uniform magnetic field extending across the gap from the first rotor disc to the second rotor disc and circumferentially distributed about the center axis; means for rotating the magnetic field about the center axis; and stationary electrical conducting means extending through the center axis of one of the first or second rotor discs and exiting through the circumferentially distributed magnetic field and between the first and second rotor discs, whereby the magnetic field cuts across the electrical conducting means in a uniform direction when the magnetic field is rotated about the center axis, thereby inducing a unidirectional electric signal in the conducting means.