Patents by Inventor Donald B. Chouinard

Donald B. Chouinard 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).

  • Gas turbine
    Patent number: 4038815
    Abstract: A gas turbine includes a rotatable unit having a compression component and an expansion component, and a toroidal combustion chamber between the compression and expansion components. The gas turbine has a gas flow path serially through the compression component, the combustion chamber and the expansion component. A first bearing assembly is positioned on the side of the compression component remote from the combustion chamber and a second bearing assembly is positioned on the side of the expansion component remote from the combustion chamber so that the rotatable unit is unsupported between the compression and expansion components and no bearing structures are in the vicinity of the combustion chamber.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: August 2, 1977
    Assignee: Northern Research and Engineering Corporation
    Inventors: Arnold M. Heitmann, Walter L. Brassert, Donald B. Chouinard