Patent ID: 6576124
Filing Date: 2003-06-10
Classification: B01D,G01N

Abstract:
A chromatography column comprising an end plate (5, 5â€²) having two sides with a central through hole, said end plate being joined to a valve block (19, 19â€²) with a central through hole (21, 21â€²); a net (129, 129â€², 229, 229â€²) with a central hole (130-130â€²â€³) with an inner circumference; and, a means for retaining a net (135, 135â€², 271, 271â€²) characterised in that said means for retaining a net (135, 135â€²) includes a sleeve having an inner end (143, 143â€²) which is integrally joinable to said net at said inner circumference of said central hole (130-130â€²â€³), a tubular portion that is adapted to pass through said through hole in said end plate, and an outer end adapted to co-operate with a retaining means (159, 159â€²) positioned on the side of the end plate opposite to the side facing the net wherein said retaining means (159, 159â€²) is free to rotate with respect to said valve block.