Patents Examined by James A. Lasson
  • Rotary heat engine
    Patent number: 5325671
    Abstract: Engine energized by an external heat source and cooled by an external cooling source, driven by a closed body of gas contained in chambers of variable volume and passages connected thereto, and operating on a Carnot cycle. The apparatus of the engine also has heat pump capabilities.
    Type: Grant
    Filed: September 11, 1992
    Date of Patent: July 5, 1994
    Inventor: Daniel E. Boehling