Patent · US Active

Plug unit and connection system for connecting capillary tubes, especially for high-performance liquid chromatography

US11802855B2 · kind B2 · utility

0Cited by

31References

19Claims

0Family size

Assignee

Dionex Softron GmbH · DE

Inventors

Hermann Hochgraeber · Offenberg, DE
Adolf Satzinger · Olching, DE
Daniel BUERGER · Raisting, DE
Andreas Unger · Garching bei München, DE

Key dates

Filing date	Sep 18, 2019
Grant date	Oct 31, 2023
Priority date	—
Expiry date	May 26, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG01N2030/027
WIPO fieldMeasurement
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.