Patents Assigned to C.G.R.S., Inc
  • Leak detection method for a primary containment system
    Patent number: 7461541
    Abstract: In one aspect the method provides for determining changes in helium concentration over time in the interstitial space between a primary vessel that is charged with helium and a secondary vessel. The expected concentration resulting from permeation is calculated and accounted for. In another aspect, air is circulated in the interstitial space. An abrupt change in measured concentrations may be used to determine an approximate leak location.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: December 9, 2008
    Assignee: C.G.R.S., Inc
    Inventors: Joby L. Adams, Eric L. Hick