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:
Feb. 08, 2011
Filed:
Nov. 06, 2008
Applicant:
Jürgen Landgraf, Gutenberg, DE;
Inventor:
Jürgen Landgraf, Gutenberg, DE;
Assignee:
Brucker Daltonik GmbH, Bremen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); B01D 59/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for operating an ion mobility spectrometer that comprises a measuring tube, a substance collector and a membrane inlet, the measuring tube, the substance collector and the membrane inlet defining a closed internal gas circuit, comprising separating the closed internal gas circuit from an external sample gas flow through the membrane inlet, transferring circulating gas containing an analyte substance from the membrane inlet to the substance collector, the analyte substance accumulated in the substance collector, releasing the accumulated analyte substances, and transferring the released analyte substances to the measuring tube.