Method of testing for leaks in a closed fluid filled system and

Details Method of testing for leaks in a closed fluid filled system and Method of testing for leaks in a closed fluid filled system and

1994-02-07

1995-02-28

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

73 455, 337321, G01M 300, H01H 3740

Patent

active

053926374

ABSTRACT:
A method of testing for leaks in a closed fluid filled system and a system tested by such method are provided, the method comprising the steps of disposing the system in a chamber, disposing a fluid in the chamber under a pressure so that if a leak path of a certain size or larger exists in the system such fluid of the chamber will be forced through the leak path to change the fluid condition in the closed volume of the system, removing the system from the chamber after a certain period of time, then subjecting the system to a certain pressure and temperature condition so that an expandable part of the system will be in an adverse expanded position beyond its normal position for that certain pressure and temperature if the leak path of at least a certain size existed, and then detecting the adverse expanded position of the part of the system.

REFERENCES:
patent: 5303576 (1994-04-01), Erdelsky

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