Switching valve for liquid chromatography
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United States of America Patent
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Mar 29, 2016
Issued Date -
N/A
app pub date -
Aug 7, 2013
filing date -
Aug 10, 2012
priority date (Note) -
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Abstract
A switching valve includes a stator and a rotor. The stator includes multiple connection ports. The rotor having predetermined switching positions and interacts with the stator to form a fluidic connection or a fluidic disconnection of predetermined connection ports. The rotor being mounted rotatably via a bearing and pressing device, where the bearing and pressing device is arranged in the housing and loaded with a predefined pressing force in a direction of the stator. The bearing and pressing device includes a spring unit, being supported against a receiving part mounted to rotate about a rotor axis. The receiving part is coupled rotationally conjointly to the rotor and has a drive region which faces away from the stator and is coupled to an output of a drive device.
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