Patent · US Active

Chromatography column method of variable speed operation

US8845903B2 · kind B2 · utility

0Cited by
9References
11Claims
0Family size

Inventors

Key dates

Filing dateOct 7, 2008
Grant dateSep 30, 2014
Priority date—
Expiry dateJul 2, 2032

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2030/565
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A chromatography column is normally filled with a slurry of media for operation. A piston normally compacts the slurry in the column. The piston moves through a cavity in communication with both a slurry inlet and slurry ports which are in communication with the interior of the chromatography column. A controller is configured to automatically adjust piston speeds along elevation zones of operation. Furthermore, presetting specific speeds less the maximum speed can be accomplished with the controller. A pressure sensor may also be employed to assist in switching speed of operation of the piston under particular pressure events.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.