Thermal measuring and testing – Leak or flaw detection – With heating or cooling of specimen for test
Reexamination Certificate
2006-11-06
2009-06-30
Assouad, Patrick J (Department: 2862)
Thermal measuring and testing
Leak or flaw detection
With heating or cooling of specimen for test
C374S030000, C374S112000, C250S341100, C250S341600
Reexamination Certificate
active
07553070
ABSTRACT:
First and second thermal sensors measure the respective temperatures of portions of a surface of a structure such as an aircraft component. An alert signal is emitted if the temperatures of the surface portions are substantially different. An energy source causes heat flow within the structure. Subsurface irregularities such as disbanded areas between composite layers and foreign materials obstruct heat flow within the structure and cause proximate surface portions to exhibit different temperatures. A non-alert signal may be emitted if the temperatures of proximate surface portions are essentially the same.
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PCT/US2007,021753, International Search Report dated Jun. 2, 2008.
Kollgaard Jeffrey R.
Thompson Jeffrey G.
Uyehara Clyde T.
Adams Bret
Alston & Bird LLP
Assouad Patrick J
The Boeing Company
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