Patents by Inventor Carroll D. Hall

Carroll D. Hall 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).

  • Modified rankine cycle engine apparatus
    Patent number: 4051680
    Abstract: A modified Rankine cycle steam engine apparatus employs a jet pump to withdraw cooled steam from an adiabatic expansion engine and return the steam to a boiler for reheating. The jet pump draws the expanded, spent steam from the expansion engine into a throttled flow of steam passing through the jet pump from two tap-off points in the boiler.
    Type: Grant
    Filed: December 26, 1973
    Date of Patent: October 4, 1977
    Inventor: Carroll D. Hall