Measuring and testing – With fluid pressure – Leakage
Patent
1984-07-31
1985-12-10
Swisher, S. Clement
Measuring and testing
With fluid pressure
Leakage
73 46, 73 491, G01M 320, G01M 322
Patent
active
045571392
ABSTRACT:
A leak detection apparatus for pipe couplings includes a sleeve for enclosing a small volume on the exterior of a pipe joint with a flow passage on the sleeve for communication with a detection instrument; the sleeve may be a stiff but deformable polyurethane tube having separable edges including reinforcing strips embedded in the sleeve adjacent the edges; the sleeve may also be a fluid impervious fabric web that is, in use, wrapped about a pipe joint. The detection method includes a delay time after the pipe coupling is pressurized. It is also possible to release the pressure prior to sampling, as for example due to safety considerations. The leak detection apparatus includes means for conversion of leaked gas concentration to leak rate.
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Author's Certificate 333,431, "Device for Tracing Leaks in Piping", Published on May 15, 1972. (Checking The Seal-Tightness of Construction), pp. 104-105.
Cantwell Thomas
Simon William
Young Bobby
Loomis International Inc.
Swisher S. Clement
Williams Hezron E.
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