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:
Jul. 15, 2014
Filed:
Apr. 16, 2012
Applicants:
Ted J. Amundsen, Melbourne, FL (US);
David C. Hahn, Rockledge, FL (US);
Inventors:
Ted J. Amundsen, Melbourne, FL (US);
David C. Hahn, Rockledge, FL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/35 (2014.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for detecting the presence and concentration of organic and inorganic acids by their infrared absorption characteristics in a refrigeration unit while running. Acids of interest, such of those formed upon decomposition of refrigerant or refrigerant oil, are volatilized and subjected to infrared radiation. Optical filtering is used to limit the infrared radiation to relevant wavelengths. Organic acids are detected by the absorbance of energy between 4-6 microns while inorganic acids are detected by the absorbance of energy between 2-4 microns.