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. 20, 2016
Filed:
Aug. 27, 2010
David Rafferty, Webster, TX (US);
James Wylde, Oak Leaf, TX (US);
Michael Spencer, Manvel, TX (US);
Pedro Ojeda, Pflugerville, TX (US);
David Rafferty, Webster, TX (US);
James Wylde, Oak Leaf, TX (US);
Michael Spencer, Manvel, TX (US);
Pedro Ojeda, Pflugerville, TX (US);
1ST DETECT CORPORATION, Austin, TX (US);
Abstract
A chemical analysis system is disclosed wherein, in evacuating a preconcentrator housing () prior to desorption, a pump system () reduces an internal pressure of the preconcentrator housing to a level substantially equal to an internal pressure of a chemical analyzer such that flow restrictors and/or membranes () between the chemical analyzer () and the preconcentrator housing () may be omitted. The chemical analysis system includes a chemical analyzer (), a preconcentrator housing () coupled to the chemical analyzer, the preconcentrator housing enclosing a temperature control element () and a sorbent material (), the temperature control element configured to heat the sorbent material to adsorb or desorb a chemical of interest; and a pump system () coupled to the preconcentrator housing and the chemical analyzer, the pump system configured to evacuate the preconcentrator housing prior to desorption of the chemical of interest.