Measuring and testing – With fluid pressure – Leakage
Patent
1993-11-18
1994-12-27
Williams, Hezron E.
Measuring and testing
With fluid pressure
Leakage
G01M 320
Patent
active
053754565
ABSTRACT:
An apparatus 10 for testing seal integrity includes a test chamber 24 for receiving a sealed article 12 containing a tracer fluid, a reservoir chamber 44, and an analysis instrument 20 for detecting the presence of tracer fluid leaked from the article 12. A reservoir valve 64 in a conduit 58 coupled between the reservoir chamber 44 and the analysis instrument 20 has an open position for enabling a vacuum to be created in the reservoir chamber 44 using the analysis instrument 20. When closed, the reservoir valve 64 blocks fluid communication between the reservoir chamber 44 and the analysis instrument 20 to isolate the vacuum in the reservoir chamber 44. A valve 48 in a conduit 38 coupled between the test chamber 24 and the reservoir chamber 44 has a closed position for blocking fluid communication between the test chamber and the reservoir chamber. This prevents a pressure change in the test chamber 24 during creation of the vacuum in the reservoir chamber 44. The valve 48 has an open position for enabling the isolated vacuum in the evacuated reservoir chamber 44 to be applied to the article 12 in the test chamber 24 to draw the tracer fluid out of the article 12 through any leakage paths. The contents of the test chamber, including any leaked tracer fluid, are then conveyed to the analysis instrument.
REFERENCES:
patent: 4419882 (1983-12-01), Ishii et al.
patent: 4492110 (1985-09-01), Bergquist
patent: 4499752 (1985-02-01), Fruzzetti et al.
patent: 4920785 (1990-05-01), Etess
Roskos Joseph W.
TRW Vehicle Safety Systems Inc.
Williams Hezron E.
LandOfFree
Leak testing apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Leak testing apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Leak testing apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-910897