Appeal No. 1997-4043 Page 4
Application No. 08/124,332
The invention enables immersion UT to be used on pieces
having surfaces that may be damaged by immersion. Initially,
a cover plate is placed face-to-face with the processing
surface of a piece. The perimeter of the processing surface
is then sealed to the cover plate to form an acoustically
reflective cavity therebetween. Because the perimeter of the
cover plate is sealed to the processing surface, the component
can be immersed for testing, without the processing surface
contacting and being damaged by the immersion fluid. During
testing, ultrasonic waves enter the component, are reflected
from the acoustically reflective cavity, and are collected to
generate an ultrasonic image of the component.
Claim 7, which is representative for our purposes,
follows:
7. A cover plate for attachment to a
processing component for protecting a processing
surface thereof during immersion ultrasonic testing,
comprising
a front face,
a back face, and
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