Direct drive rotational motor with axial vacuum
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United States of America Patent
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Jul 13, 1999
Grant Date -
N/A
app pub date -
Feb 7, 1997
filing date -
Feb 7, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotational support assembly for holding and rotating an article. The assembly includes a support member for holding the article and a drive mechanism for rotating the support member. A drive shaft couples the drive mechanism directly to the support member. The assembly also includes a vacuum system including at least one passageway formed in the support member and the drive shaft. The passageway extends between an inlet in the shaft for coupling the passageway to a vacuum source and an outlet opening connected to the surface of the support member for holding the article against the support member by a vacuum.
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