Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Reexamination Certificate
2005-03-03
2008-12-30
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
C073S583000, C073S587000
Reexamination Certificate
active
07469595
ABSTRACT:
A device for use in detecting structural damage includes at least one piezoelectric wafer that has a sensor, and an actuator in-plane with the sensor. At least one of the sensor and the actuator at least partially surrounds the other of the sensor and the actuator such that the piezoelectric wafer provides radial detection of structural occurrences in a material.
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Dunn Christopher T.
Jugenheimer Kristin A.
Kessler Seth S.
Size Aaron B.
Lefkowitz Edward
Metis Design Corporation
Mintz Levin Cohn Ferris Glovsky and Popeo P.C.
Patel Punam
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