The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 1981
Filed:
Jul. 29, 1980
Applicant:
Inventors:
Werner Gunkel, Rossdorf, DE;
Friedhelm Eisenbeiss, Griesheim, DE;
Assignee:
Merck Patent Gesellschaft mit beschrankter Haftung, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2101982 ; 210351 ;
Abstract
A chromatography column adapted for high pressure chromatography is characterized by a tubular membrane separating a glass tube from the pressurized area between the glass tube and a pressure tube adapted to receive a pressurizing fluid. Changing of the glass tube is facilitated by annular seals at each end of the glass tube against which an adjustable threaded plug, fitted in one of a pair of screw caps fitted on each end of the pressure tube, exerts sealing pressure.