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:
Sep. 27, 2005
Filed:
Jul. 22, 2003
Applicant:
Jochen Franzen, Bremen, DE;
Inventor:
Jochen Franzen, Bremen, DE;
Assignee:
Brunker Daltonik GmbH, Bremen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J049/00 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to the feeding of analyte ions, generated at atmospheric pressure, efficiently into the mass spectrometer. The invention provides a lengthy ion mobility drift tube with a focusing electric field inside to guide the ions from an ionization cloud generated at atmospheric pressure towards the entrance opening of the mass spectrometer, and to dry droplets which might occur in the ionization cloud by a hot drying gas flowing through the ion mobility drift tube towards the ionization cloud.