Electrical generator or motor structure – Dynamoelectric – Linear
Patent
1997-05-06
1998-06-09
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Linear
74480R, 2481781, F16M 1112
Patent
active
057639663
ABSTRACT:
A linear motor system for providing XY motion comprises a first linear motor directed for effecting movement of a first element in a first of two orthogonal directions. There is a second linear motor directed for effecting movement of a second element in a second of the orthogonal directions. The motors are mounted on a base such that the elements are located and movable in a single plane in the respective orthogonal directions relative to each other over the base. A shuttle is reactive with the two elements such that movement of the elements effects XY movement of the shuttle. The elements and the shuttle are connected through a bearing force. The bearing force is created selectively by a vacuum attracting force cooperating with an air bearing repelling force, a magnetic attracting force cooperating with an air bearing repelling force, an air bearing repelling force in a first direction and an air bearing repelling force in an opposite direction, or a mechanical linkage. There is very fine movement in an XY direction which can be precisely controlled while angular movement of the shuttle is prevented.
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Jones Judson H.
Stephan Steven L.
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