Patents Assigned to William Armstrong
  • Liquid/vapor cycle
    Patent number: 6098404
    Abstract: An engine is provided including a heat exchanger capable of providing a first temperature and a second temperature, wherein the first temperature and the second temperature are different so as to define a temperature differential. A component of the engine includes a chamber with liquid/vapor therein. In use, the heat exchanger is capable of subjecting the chamber to the first temperature source and the second temperature source in a reciprocating manner for affording a change in pressure which may be harnessed as work output.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: August 8, 2000
    Assignee: William Armstrong
    Inventor: William Armstrong