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:
Apr. 01, 2014
Filed:
Sep. 12, 2011
Applicants:
Vince B. Hadley, Bartlesville, OK (US);
Rodney Wayne Dilbeck, Bartlesville, OK (US);
Inventors:
Vince B. Hadley, Bartlesville, OK (US);
Rodney Wayne Dilbeck, Bartlesville, OK (US);
Assignee:
ABB Inc., Cary, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 30/00 (2006.01); G01N 30/06 (2006.01); G01N 30/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
A gas chromatograph operable to analyze a sample gas comprising a carrier gas and components. The gas chromatograph includes a bridge circuit with a sample sensor connected therein. A servo amplifier is connected to the bridge circuit and is operable to maintain the sample sensor at a constant temperature. An output of the servo amplifier is digitized and is used to quantify the components in the sample gas.