Leak detection aid

Details Leak detection aid Leak detection aid

1989-02-15

1989-12-26

Chapman, John

Measuring and testing

With fluid pressure

Leakage

73 46, 73 498, 277 2, G01M 322

Patent

active

048889792

ABSTRACT:
A leak detection apparatus and method for detecting leaks across an O-ring sealing a flanged surface to a mating surface is an improvement in a flanged surface comprising a shallow groove following O-ring in communication with an entrance and exit port intersecting the shallow groove for injecting and withdrawing, respectively, a leak detection fluid, such as helium. A small quantity of helium injected into the entrance port will flow to the shallow groove, past the O-ring and to the exit port.

REFERENCES:
patent: Re30311 (1980-06-01), Chaplin et al.
patent: 3895735 (1975-07-01), Clay
patent: 3949598 (1976-04-01), Bergstrand
patent: 4410186 (1983-10-01), Pierce, Jr.
patent: 4420970 (1983-12-01), Organi
patent: 4723441 (1988-02-01), Sweeney

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