Vacuum centrifuge with magnetic drive
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United States of America Patent
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-
Oct 7, 1980
Grant Date -
N/A
app pub date -
May 9, 1979
filing date -
May 9, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A high speed centrifugal concentrator includes a vacuum chamber within which a centrifuge rotor is rotatably mounted for spinning a plurality of vials containing biological solutions or the like at high speed while subjecting the solution to a vacuum condition for concentrating and evaporating the latter. The vacuum chamber has a hinged cover and is completely enclosed to maintain the vacuum condition therein and the centrifuge rotor is driven by an electric motor located outside of said closed vacuum chamber and remote therefrom. The electrical circuit for driving the motor includes dynamic braking means for braking the motor in response to manual operation of a selector switch, or to the raising of the vacuum chamber cover from closed position.
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