Device for testing pipes for interior leaks

Details Device for testing pipes for interior leaks Device for testing pipes for interior leaks

1994-05-06

1995-08-22

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

1510405, 2541346, G01M 328

Patent

active

054429510

ABSTRACT:
An arrangement for examining pipes for interior leaks, comprises two mirror-inverted sections, each having at least one clamping device and at least one pair of runners. A pneumatic pressure source is provided for inspection of the pipes, as well as a sealing arrangement and a control arrangement. Each section has an outer cylinder, at least one intermediate cylinder concentrically disposed in the outer cylinder and displaceable with respect thereto, and at least one inner cylinder concentrically disposed in the center cylinder and displaceable with respect thereto. The two inner cylinders of the two sections are connected with the pneumatic pressure source so that pneumatic energy for the internal-pressure test is also for used to move the two sections.

REFERENCES:
patent: 3224734 (1965-12-01), Hill
patent: 3322394 (1967-05-01), Gagne
patent: 4372161 (1983-02-01), de Buda et al.
patent: 4558751 (1985-12-01), Huffaker

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