Patents Assigned to Lars G. I. Hellgren
  • Patent number: 4550594
    Abstract: Separable column for chromatography consisting of surface grinded rings (5) piled inside a tube (6) which rings tighten against each other by a tightening assembly (7, 8, 9). The rings are to be packed with a chromatography gel and after a chromatography process with movable phase they are pressed out of the tube, separated and eluted. The invention also concerns an apparatus for chromatography consisting of the column and a detection and signal device (3, 4) in order to indicate the end position of the movable phase, and possibly an elution unit adapted to each separated ring.
    Type: Grant
    Filed: May 2, 1984
    Date of Patent: November 5, 1985
    Assignees: Lars G. I. Hellgren, Jan G. Vincent
    Inventor: Nils M. L. Engstrom