Patent ID: 8632680
Filing Date: 2014-01-21
Classification: B01D,G01N

Abstract:
1. A chromatography column comprising a column tube with at least one tubing end piece, and at least one adjustable adapter assembly with an end sleeve attached to the tubing end piece by a thread arrangement, an end cap rotably attached to the end sleeve, and a plunger assembly with a plunger arranged at the end of a threaded plunger rod arranged with the threads engaged by said rotable end cap for enabling longitudinal movement of the plunger by turning the end cap, wherein the plunger rod comprises a longitudinal groove and the adaptor assembly comprises an anti-rotation plate with a protrusion that engages the longitudinal groove to prevent rotation of the plunger, wherein the anti-rotation plate is arranged in between the end sleeve and the tubing end piece, and wherein the anti-rotation plate is provided with a rotation lock structure arranged to prevent rotation of the same with respect to the tubing end piece.