Patents by Inventor Robert L. Roper

Robert L. Roper 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).

  • Protection of gas engine or turbine from damage by changes in operating characteristics
    Patent number: 4959896
    Abstract: Apparatus and method are provided to protect a gas engine or turbine used to generate electric power against damage that would otherwise result from changes in the operating characteristics of the engine, for example, changes caused by fluctuation in the heat content of the gaseous fuel. To effect such protection, the engine or turbine is controlled by adjusting the supply of fuel gas to the engine or turbine in response to changes in the output of the electric power generated.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: October 2, 1990
    Assignee: Oryx Energy Company
    Inventors: William D. Bolin, Robert L. Roper