The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2001
Filed:
Nov. 24, 1998
Roy V. Semerdjian, Sacramento, CA (US);
David A. Le Febre, Camino, CA (US);
UOP LLC, Des Plaines, IL (US);
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.