Round profile multi-capillary assembly and method of making
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United States of America Patent
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Jan 16, 2001
Grant Date -
N/A
app pub date -
Nov 24, 1998
filing date -
Nov 24, 1998
priority date (Note) -
Expired
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Abstract
A multi-passage capillary arrangement can be formed from ductile glass material into an assembly that has an essentially round outer cross section and multiple capillary passages with diameters of 250 micrometers or less. The multiple capillary assembly provides multiple capillary sized passages of a regularly recurring shape in a single cohesive bundle. The round outer cross section facilitates the use of the multiple capillary by providing a suitable surface for connections. The multiple capillary arrangement can be made by a method that provides uniform or nearly uniform capillary passages throughout the arrangement. The capillaries are useful for chromatograph applications and as flow restrictors.
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