Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate
2008-03-07
2010-12-14
Larkin, Daniel S (Department: 2856)
Measuring and testing
Vibration
By mechanical waves
C073S620000, C073S629000
Reexamination Certificate
active
07849747
ABSTRACT:
Ultrasonic detection of flaws in ceramic monoliths such as are commonly used in diesel particulate filters is made possible by beaming ultrasound into the monolith from an inlet or outlet face thereof and analyzing the reflected ultrasound from the same face. The monolith is preferably rotated during the scan, or the scan may be repeated from several rotational positions relative to the face of the monolith. Even small flaws which are hard to detect may be identified.
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Brooks & Kushman P.C.
Larkin Daniel S
Miller Rose M
Umicore AG & Co. KG
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