Granted Patent
Utility
US 5,140,264 · App. 07/720,038
Method for non-destructively assessing the condition of a turbine blade using eddy current probes inserted within cooling holes
Inventors:
Michael J. Metala, C. Gerard Beck
Patented Case
View Patent ↗
Granted: Aug 18, 1992
Filed: Jun 24, 1991
Inventors
Michael J. Metala
C. Gerard Beck
Assignee (at issue)
Westinghouse Electric Company LLC
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.