Plug unit and connection system for connecting capillary tubes, especially for high-performance liquid chromatography
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United States of America Patent
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Sep 20, 2016
Grant Date -
Mar 3, 2016
app pub date -
Nov 11, 2015
filing date -
May 22, 2009
priority date (Note) -
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Abstract
A plug unit for connecting capillary tubes includes a plug housing that has an axial borehole, a plug capillary tube that projects through the axial borehole, and a sealing element that surrounds the plug capillary tube. The front end of the plug capillary tube is sealed by an elastic and/or plastic deformation of the sealing element against the capillary tube receptacle opening of a bushing unit. A hollow cylindrical pressure piece is provided that surrounds the sealing element in an axial region facing away from the end surface of the plug capillary tube, and the pressure piece has a rearward end side that faces away from the end surface of the plug capillary tube and that can be loaded by the plug housing with an axial pressure force when the plug unit and bushing unit are connected.
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