Liquid purification or separation – With means to add treating material – Chromatography
Reexamination Certificate
2006-03-07
2006-03-07
Therkorn, Ernest G. (Department: 1723)
Liquid purification or separation
With means to add treating material
Chromatography
C210S656000
Reexamination Certificate
active
07008532
ABSTRACT:
A chromatographic device comprises a chromatographic tube, a chromatographic medium, a piston assembly, an elongate rod, and a threaded member. The piston assembly is within the tube and is positioned generally between a first end of the tube and the chromatographic medium. The chromatographic medium is generally between the piston assembly and a second end of the tube. The elongate rod extends partially into the chromatographic tube such that the piston assembly is between the elongate rod and the second end of the chromatographic tube. The elongate rod has a threaded outer surface. The threaded member is threaded to the threaded outer surface of the elongate rod. The treaded member is operatively secured to the chromatographic tube.
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Laub Charles F.
Shalon Yehuda
Alltech Associates Inc.
Bunch William D.
Therkorn Ernest G.
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