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:
Jun. 10, 2014
Filed:
Sep. 28, 2011
Applicants:
Gregg A. Swayze, Littleton, CO (US);
Heather A. Lowers, Golden, CO (US);
Roger N. Clark, Lakewood, CO (US);
Inventors:
Gregg A. Swayze, Littleton, CO (US);
Heather A. Lowers, Golden, CO (US);
Roger N. Clark, Lakewood, CO (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 31/00 (2006.01); C04B 14/20 (2006.01); C04B 14/38 (2006.01);
U.S. Cl.
CPC ...
C04B 14/20 (2013.01); C04B 14/202 (2013.01); C04B 14/38 (2013.01);
Abstract
A method for identifying the source of vermiculite insulation in situ using a portable spectrometer with a light-emitting contact probe and a personal computer. Identification is accomplished using NIR reflectance spectroscopy and absorption band depth ratios to differentiate between vermiculite sources and to test for the presence of amphibole, talc, or serpentine contaminants in vermiculite insulation.