Electrical generator or motor structure – Dynamoelectric – Linear
Reexamination Certificate
2005-06-07
2005-06-07
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Linear
C355S053000
Reexamination Certificate
active
06903468
ABSTRACT:
Disclosed is a stage device by which high precision motion and high speed motion can be accomplished simultaneously. The stage device includes a stage, a repulsive magnet unit for accelerating and/or decelerating the stage with respect to a movement direction, and a magnetic driving system for controlling the position of the stage. The repulsive force generator has (i) a repulsive stator, as a set magnet, including a plurality of magnets disposed along a direction orthogonal or substantially orthogonal to the movement direction, with a spacing therebetween while different poles of them are opposed to each other, and (ii) a repulsive movable element, as an insert magnet, to be mountably and demountably inserted into the spacing and being disposed in relation to the repulsive stator so that the same poles are opposed to each other.
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Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Jones Judson H.
Schuberg Darren
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