Hydrostatic line testing and method

Details Hydrostatic line testing and method Hydrostatic line testing and method

1989-11-28

1991-11-19

Noland, Tom

Measuring and testing

With fluid pressure

Leakage

73 40, 340605, G01F 2314

Patent

active

050656163

ABSTRACT:
Apparatus for, and method of, hydrostatically testing whether a line filled with a liquid, such as gasoline, is leaking comprising mechanism for closing one end of the line to be tested and an upstanding cylinder having its upper end coupled to the opposite end of the line to be tested. The cylinder is transparent and filled at its upper end with a liquid identical to the liquid in the line being tested and at its lower end, a second liquid of a substantially heavier density so that the liquids do not mix. Mechanism is provided for applying pressure to the heavier density liquid to force the liquid in the upper end of the cylinder into the line. The cylinder is transparent and includes graduations thereon so that the user can visualize whether or not the junction is moving.

REFERENCES:
patent: 1783412 (1930-12-01), Crowe
patent: 2353275 (1944-07-01), St. Clair
patent: 2539843 (1951-01-01), Kerr
patent: 3910102 (1974-05-01), McLean
patent: 4571987 (1986-02-01), Horner
patent: 4796469 (1989-01-01), Brown et al.
patent: 4945757 (1990-08-01), Schuster

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