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:
Nov. 27, 2007
Filed:
Nov. 22, 2005
Kevin L. Linker, Albuquerque, NM (US);
Frank A. Bouchier, Albuquerque, NM (US);
Lisa Theisen, Albuquerque, NM (US);
Lester H. Arakaki, Edgewood, NM (US);
Kevin L. Linker, Albuquerque, NM (US);
Frank A. Bouchier, Albuquerque, NM (US);
Lisa Theisen, Albuquerque, NM (US);
Lester H. Arakaki, Edgewood, NM (US);
Sandia Corporation, Albuquerque, NM (US);
Abstract
A method and system for controllably releasing contaminants from a contaminated porous metallic mesh by thermally desorbing and releasing a selected subset of contaminants from a contaminated mesh by rapidly raising the mesh to a pre-determined temperature step or plateau that has been chosen beforehand to preferentially desorb a particular chemical specie of interest, but not others. By providing a sufficiently long delay or dwell period in-between heating pulses, and by selecting the optimum plateau temperatures, then different contaminant species can be controllably released in well-defined batches at different times to a chemical detector in gaseous communication with the mesh. For some detectors, such as an Ion Mobility Spectrometer (IMS), separating different species in time before they enter the IMS allows the detector to have an enhanced selectivity.