Patents by Inventor Douglas A. Brosseau

Douglas A. Brosseau has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Low-melting point inorganic nitrate salt heat transfer fluid
    Patent number: 7588694
    Abstract: A low-melting point, heat transfer fluid made of a mixture of four inorganic nitrate salts: 9-18 wt % NaNO3, 40-52 wt % KNO3, 13-21 wt % LiNO3, and 20-27 wt % Ca(NO3)2. These compositions can have liquidus temperatures less than 100 C; thermal stability limits greater than 500 C; and viscosity in the range of 5-6 cP at 300 C; and 2-3 cP at 400 C.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: September 15, 2009
    Assignee: Sandia Corporation
    Inventors: Robert W. Bradshaw, Douglas A. Brosseau