Patents by Inventor Thomas E. Fewell

Thomas E. Fewell 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).

  • Patent number: 3999602
    Abstract: A tube-to-tube heat exchanger is disclosed with a thermally conductive matrix between and around the tubes to define annuli between the tubes and matrix. The annuli are filled to a level with a molten metal or alloy to provide a conductive heat transfer path from one tube through the matrix to the second tube. A matrix heat exchanger of this type is particularly useful for heat transfer between fluids which would react should one leak into the second.
    Type: Grant
    Filed: October 21, 1975
    Date of Patent: December 28, 1976
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Thomas E. Fewell, Charles T. Ward