Measuring and testing – With fluid pressure – Leakage
Patent
1987-03-23
1989-03-21
Tokar, Michael J.
Measuring and testing
With fluid pressure
Leakage
G01M 320
Patent
active
048132683
ABSTRACT:
A leakage detection apparatus for drum wheels having a pair of plates which sealingly engage the wheel to define an inner first chamber under vacuum, a reciprocating container enveloping the engaged plates and wheel to define an annular helium chamber sharing the wheel as a common wall with the inner first chamber, a probe gas introduced into the annular helium chamber, and a mass spectrometer, in gaseous communication with said inner first chamber scanning for a trace of the probe gas indicating the presence of a leak path in the structual integrity of the wheel. A method of use is also disclosed.
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Superior Industries International Inc.
Tokar Michael J.
Williams Hezron E.
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