Patents by Inventor Roger Eugene Ramsey

Roger Eugene Ramsey 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).

  • Reusable upper stage rocket with aerospike engine
    Patent number: 11933249
    Abstract: Systems and methods for a fully reusable upper stage for a multi-stage launch vehicle are provided. The reusable upper stage uses an aerospike engine for main propulsion and for vertical landing. A heat shield can include a plurality of scarfed nozzles embedded radially around a semi-spherical surface of the heat shield, wherein inboard surfaces of the plurality of scarfed nozzles collectively define an aerospike contour. The heat shield can be actively cooled to dissipate heat encountered during reentry of the upper stage.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: March 19, 2024
    Assignee: Blue Origin, LLC
    Inventors: James R. French, Roger Eugene Ramsey, Adam Wuerl
  • REUSABLE UPPER STAGE ROCKET WITH AEROSPIKE ENGINE
    Publication number: 20230211900
    Abstract: Systems and methods for a fully reusable upper stage for a multi-stage launch vehicle are provided. The reusable upper stage uses an aerospike engine for main propulsion and for vertical landing. A heat shield can include a plurality of scarfed nozzles embedded radially around a semi-spherical surface of the heat shield, wherein inboard surfaces of the plurality of scarfed nozzles collectively define an aerospike contour. The heat shield can be actively cooled to dissipate heat encountered during reentry of the upper stage.
    Type: Application
    Filed: July 8, 2022
    Publication date: July 6, 2023
    Inventors: James R. French, Roger Eugene Ramsey, Adam Wuerl