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. 26, 2010
Filed:
May. 12, 2006
Paul Grant Wynn, Broxted, GB;
Henry Paul Mcintyre, Watford, GB;
Paul Grant Wynn, Broxted, GB;
Henry Paul McIntyre, Watford, GB;
Smiths Detection - Watford Limited, Watford Herts, GB;
Abstract
An ion mobility spectrometer has a drift chamber () with an inlet () at one end by which a gas or vapor being analyzed is supplied to the chamber. After ionization, molecules are admitted through a gateand flow along a drift region () to a collector plate (). A drift gas is flowed through the drift region against the flow of ionized molecules and is circulated along a flow path () and (), which includes a chamber () including a dopant. The dopant is 2,4-pentanedione, which has been found to enhance the detection of a number of compounds especially toxic industrial chemicals and nitrogen compounds, such as those present in the breath of mammals.