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. 05, 2006
Filed:
Sep. 12, 2002
Applicant:
Cyrus M. Herring, Urbana, IL (US);
Inventor:
Cyrus M. Herring, Urbana, IL (US);
Assignee:
Caviton, Inc., Champaign, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 30/02 (2006.01); G01N 27/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
A gas detector especially adapted for use with gas chromatographs contains two capillary tubing electrodes through which a gas flows. The inner ends of the electrodes are coaxial and are separated by a gap. The outer end of one of the electrodes forms a gas inlet. The gas detector also contains a coaxial dielectric tube spaced apart from and surrounding the electrodes axially, a means for applying a sufficient voltage across the gap between the electrodes to create a discharge within the gas, and a means for measuring a change in properties of the gas as it passes through the gap between the electrodes.