Centrifuge having face seal
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United States of America Patent
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-
Oct 18, 2011
Grant Date -
Mar 25, 2010
app pub date -
Sep 24, 2009
filing date -
Sep 25, 2008
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A centrifuge includes a rotor, a rotation shaft which has a through-hole communicated with an interior of the rotor, a face seal which slidingly contacts an end of the rotation shaft and has a path communicated with the through-hole of the rotation shaft, a wall member which accommodates the face seal, a sample transfer unit which transfers a sample through the rotor, and a coolant circulation unit which circulates a coolant to the wall member. The sample transfer unit transfers the sample by pressure so that a pressure of the sample flowing through a portion where the rotation shaft and the face seal slidingly contact with each other is higher than a pressure of the coolant flowing through the wall member.
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