Leak detector

Details Leak detector Leak detector

1982-03-10

1984-06-12

Goldberg, Gerald

Measuring and testing

With fluid pressure

Leakage

73 491, G01M 306

Patent

active

044533993

ABSTRACT:
A leak detecting method utilizes a pressure vessel for holding gas under ssure and a transparent chamber partly filled with liquid. A conduit defines a gas pathway from the vessel to a location within the chamber which is beneath the surface of the liquid. A fitting is provided for connection to a system which is to be tested and a further conduit connects the fitting through a first valve to a location within the liquid chamber, and through a second valve with the interior of the vessel. The fitting is connected to a system to be tested, and the first valve is closed. The system is pressurized to fill the conduit means and allow gas entering the conduit means to pass through the second valve into the interior of the vessel. The second valve is enclosed, thus isolating the vessel from the system. After a pause to allow leakage in the system to lower the pressure, the first valve is open and if gas bubbles in the liquid, then leakage has occurred.

REFERENCES:
patent: 3103910 (1963-09-01), Smith et al.
patent: 3177702 (1965-04-01), Andersson
patent: 3221540 (1965-12-01), Kilbourn
patent: 4320653 (1982-03-01), Bernhardt

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