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:
Oct. 20, 2009
Filed:
Dec. 10, 2004
Gerald James Spencer, Abbeymead, GB;
Neil John Walker, Quedgley, GB;
John Mackay Scott, Chedworth, GB;
Gerald James Spencer, Abbeymead, GB;
Neil John Walker, Quedgley, GB;
John Mackay Scott, Chedworth, GB;
Pall Euroflow Limited, Stroud, Gloucestershire, GB;
Abstract
A method of operating chromatography column apparatus comprising a column tube () and first and second discrete end cell structures, associated with the respective ends of the column tube and positionable to close off the column tube and define therein a column space for retaining chromatography medium in use of the apparatus. The first end cell portion comprises a piston portion () fitting slidably in the column tube. The column tube and the second end cell structure are separated to provide an access spacing between them. The piston portion () of the first end cell structure is advanced through the column tube to expose it at the open second end of the column tube, for maintenance of the piston portion thus exposed. Corresponding chromatography apparatus is another aspect of the disclosure.