Patents by Inventor Adrianus Petrus Dirne

Adrianus Petrus Dirne 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).

  • Hot-gas machine comprising a heat transfer device
    Patent number: 3950947
    Abstract: A hot-gas engine including a heater and a source of heat in combination with a switching device for conveying heat from the heat source to heater, the device including a pair of spaced heat pipes with third intermediate heat pipe and means for introducing inert gas into said third heat pipe and removing said gas to vary the vaporization point therein and the rate of heat transfer therethrough.
    Type: Grant
    Filed: October 25, 1974
    Date of Patent: April 20, 1976
    Assignee: U.S. Philips Corporation
    Inventors: Adrianus Petrus Dirne, George Albert Apolonia Asselman, Herman Henricus Maria Van Der
  • Heating device
    Patent number: 3943964
    Abstract: A heating device formed as a double-wall tubular heat pipe with a closed annular space between outer and inner walls containing a vaporizable liquid heat-transporting medium, and a cylindrical bore defined within said inner tube as the heating space for objects to be heated, said annular space having end walls closing its ends, and means for transmitting heat through one of said end walls into said space.
    Type: Grant
    Filed: December 19, 1974
    Date of Patent: March 16, 1976
    Assignee: U.S. Philips Corporation
    Inventors: George Albert Apolonia Asselman, Adrianus Petrus Dirne, Petrus Helena Gerardus Maria Vromans