Measuring and testing – With fluid pressure – Clamp – plug – or sealing feature
Patent
1992-06-18
1994-02-22
Williams, Hezron E.
Measuring and testing
With fluid pressure
Clamp, plug, or sealing feature
138 943, G01M 304
Patent
active
052877302
ABSTRACT:
An apparatus for testing a network of plumbing pipes for leaks comprises a pair of housings and a slidable test plate. The test plate is interposed between the housings to block fluid flow through the housings when inspecting the pipe network for leaks. After testing is complete, the test plate is removed from the housings and the housings remain fixed as a permanent part of the pipe network.
REFERENCES:
patent: 3051201 (1962-08-01), Wilson
patent: 3319661 (1967-05-01), Shindler
patent: 3860038 (1975-01-01), Forni
patent: 4194721 (1980-03-01), Nachtigahl
patent: 4271870 (1981-06-01), Butler et al.
patent: 4343332 (1982-08-01), Williams, 3rd et al.
patent: 4765361 (1988-08-01), Clifford
Roskos Joseph W.
Securus Inc.
Williams Hezron E.
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