Thermal measuring and testing – Leak or flaw detection
Reexamination Certificate
2007-09-14
2011-12-06
Mui, Christine T (Department: 1774)
Thermal measuring and testing
Leak or flaw detection
C436S002000, C436S003000, C073S023200, C073S040700, C073S040000, C073S037000
Reexamination Certificate
active
08070355
ABSTRACT:
Disclosed are a method of detecting a leak of fluoroolefin compositions and sensors used therefor. In particular, the method is particularly useful for detecting a leak of a fluoroolefin refrigerant composition from a cooling system of an automotive vehicle. Such fluoroolefin refrigerant compositions have double bond structures which make them particularly well suited with sensing technologies, including: infrared sensors, UV sensors, NIR sensors, ion mobility or plasma chromatographs, gas chromatography, refractometry, mass spectroscopy, high temperature thick film sensors, thin film field effect sensors, pellistor sensors, Taguchi sensors and quartz microbalance sensors.
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Non-Final Office Action mailed Mar. 31, 2010, in co-pending U.S. Appl. No. 11/855,655.
Final Office Action mailed Sep. 10, 2010, in co-pending U.S. Appl. No. 11/855,655.
PCT International Search Report and Written Opinion, mailed Mar. 13, 2008.
Laubacher Daniel B.
Minor Barbara Haviland
Mouli Nandini C.
Steichen John Carl
E. I. du Pont de Nemours and Company
Mui Christine T
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