Patent ID: 7351332
Filing Date: 2008-04-01
Classification: B01D,G01N,Y10T

Abstract:
1. A chromatography cartridge comprising: a tubular housing having a first open end, a second open end, an outer surface, and an inner surface, the tubular housing defining an interior volume; a first plug including an annular groove adapted to receive the first open end of the tubular housing, a first portion of the first plug positioned through the first open end and into the interior volume and having an outer circumferential surface, a substantial portion of the outer circumferential surface having a length greater than the thickness of the tubular housing and being fused to the inner surface of the tubular housing, and a second portion of the first plug positioned outside the interior volume and extending toward the second open end, the second portion of the first plug extending along and overlapping a portion of the outer surface of the tubular housing; a first frit positioned in the interior volume, the first frit having a first surface oriented substantially parallel to a lateral surface of the first portion of the first plug, the first surface of the first frit being in contact with the lateral surface of the first portion of the first plug; a first opening extending through the first plug, the first opening being in fluid communication with the interior volume, the first plug including a protruding extension through which the first opening extends; a second plug including an annular groove adapted to receive the second open end of the tubular housing, a first portion of the second plug positioned through the second open end and into the interior volume, and having an outer circumferential surface, a substantial portion of the outer circumferential surface having a length greater than the thickness of the tubular housing and being fused to the inner surface of the tubular housing, and a second portion of the second plug positioned outside of the interior volume and extending toward the first open end, the second portion of the second plug extending along and overlapping a portion of the outer surface of the tubular housing; a second opening extending through the second plug, the second opening being in fluid communication with the interior volume; and a second frit positioned in the interior volume, the second frit having a first surface oriented substantially parallel to a lateral surface of the first portion of the second plug, the first surface of the second frit being in contact with the lateral surface of the first portion of the second plug.