Patents Represented by Attorney, Agent or Law Firm Dahl & Osterloth
  • Method and apparatus for removing non-condensible gas from a working fluid in a binary power system
    Patent number: 6497748
    Abstract: Apparatus for removing non-condensible gas from a working fluid utilized in a thermodynamic system comprises a membrane having an upstream side operatively connected to the thermodynamic system so that the upstream side of the membrane receives a portion of the working fluid. The first membrane separates the non-condensible gas from the working fluid. A pump operatively associated with the membrane causes the portion of the working fluid to contact the membrane and to be returned to the thermodynamic system.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: December 24, 2002
    Assignee: Bechtel BWXT Idaho, LLC
    Inventors: Charles M. Mohr, Gregory L. Mines, K. Kit Bloomfield
  • Ambient methods and apparatus for rapid laser trace constituent analysis
    Patent number: 6407811
    Abstract: A method and apparatus are disclosed for measuring trace amounts of constituents in samples by using laser induced breakdown spectroscopy and laser induced fluorescence under ambient conditions. The laser induced fluorescence is performed at a selected wavelength corresponding to an absorption state of a selected trace constituent. The intensity value of the emission decay signal which is generated by the trace constituent is compared to calibrated emission intensity decay values to determine the amount of trace constituent present.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: June 18, 2002
    Assignee: Bechtel BWXT Idano, LLC
    Inventors: Stuart C. Snyder, Judy K. Partin, Jon D. Grandy, Charles L. Jeffery