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:
Mar. 10, 2015
Filed:
Feb. 17, 2011
Applicants:
Roland Van Driel, Kranenburg, DE;
Bruno Van Stuijvenberg, Emmerich, DE;
Inventors:
Roland Van Driel, Kranenburg, DE;
Bruno Van Stuijvenberg, Emmerich, DE;
Assignee:
Spectro Analytical Instruments GmbH, Kleve, DE;
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/30 (2006.01); G01N 21/67 (2006.01);
U.S. Cl.
CPC ...
G01N 21/67 (2013.01);
Abstract
A method of determining the carbon content of an iron alloy may include starting of the measurement of a sample in a spark spectrometer, creation of a plasma in a pre-sparking phase, detection and recording of an intensity signal for the carbon, calculation and cutting out of an unstable plasma phase, calculation of an excessive rise in the carbon signal, and calculation of the content of dissolved and undissolved carbon.