Patents by Inventor Raymond John Pethick

Raymond John Pethick 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).

  • Electromagnetic machines
    Patent number: 4118646
    Abstract: An electromagnetic machine having a salient pole rotor, impellor means for directing a flow of coolant gas through the machine, an electrically conductive winding carried on each salient pole of the rotor, and a heat pipe structure carried by each such winding positioned with the evaporator end of each heat pipe structure embedded within the associated winding the condenser end projecting out of the winding into the path of flow of the coolant gas and the portions of the heat pipe structure between the ends extending literally across a plurality of the conductors of the associated winding.
    Type: Grant
    Filed: June 17, 1977
    Date of Patent: October 3, 1978
    Assignee: Markon Engineering Company Limited
    Inventors: Francis William Fleming, Raymond John Pethick