Pipe joint seal tester

Details Pipe joint seal tester Pipe joint seal tester

1992-05-29

1994-06-28

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

73 491, 73 498, 138 90, G01M 328

Patent

active

053236416

ABSTRACT:
A mobile apparatus for testing the integrity of a joint between two sections of concrete pipe in a test-as-you-go method of assembling concrete pipe sections to form a continuous pipe. The apparatus includes a wheel mounted frame which carries a flexible seal used to cover the interior of the entire pipe joint to form a substantially closed annular space. That space and a connected tank provide a substantially known volume for measurement purposes. The pressure in the known volume is monitored over a set period of time to determine the integrity of the pipe joint. The apparatus is moved along the interior of the pipe to test each joint after it is assembled. A method of testing the pipe joints is also disclosed.

REFERENCES:
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patent: 1931502 (1933-10-01), Markle et al.
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patent: 3018657 (1962-01-01), Yevick
patent: 3338088 (1967-08-01), Smith et al.
patent: 3779068 (1973-12-01), Forsythe
patent: 3913382 (1975-10-01), Kurose et al.
patent: 4070904 (1978-01-01), VanderLans
patent: 4763511 (1988-08-01), Mathison et al.

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