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:
Jun. 21, 1983
Filed:
May. 13, 1981
Bengt G Falk, Upsala, SE;
Pharmacia Fine Chemicals AB, Upsala, SE;
Abstract
A method and a device for applying a sample solution to a liquid chromatographic column. The device comprises a container of uniform cross section and a piston slidably arranged in said container and sealingly contacting the container wall so as to divide the container into a driving solution chamber and a sample solution chamber. The piston is arranged to be displaced towards the sample solution chamber when driving solution is pumped into the driving solution chamber while expelling sample solution from the sample solution chamber in an amount proportional to the amount of driving solution pumped into the driving solution chamber. When all sample solution has been expelled from the sample solution chamber the driving solution chamber is automatically put into communication with the outlet of the container.