Fluid leak detection process and installation
Method and automatic device for the testing of tight cavities
Device for testing filters, particularly sterile filters
Method and apparatus for electronic leak testing
Method for checking pipes or pipe networks for leaks Patent #: 4608857
ApplicationNo. 06/914925 filed on 10/03/1986
US Classes:73/49.2, Receptacle702/51, Leak detecting73/40Leakage
ExaminersPrimary: Levy, Stuart S.
Assistant: Williams, Hezron
Attorney, Agent or Firm
International ClassG01M 3/32 (20060101)
AbstractA method and apparatus for quickly determining leakage in pressurized fluid receptors. Pressure determinations are made substantially immediately following the completion of the filling of the item to be tested with the pressurized fluid without the need for a stabilization period. The complete decay curve is calculated from the pressure determinations. A time constant is determined from the curves defined when no leakage is present and is utilized in determining the leakage rate whenever the two curves defined by the pressure points provide different end pressure values. The determinations may be made by conventional microprocessor-based instrumentation to provide a substantial increase in the rate of conducting fluid leakage tests.