Patents by Inventor Joel P. Johnston

Joel P. Johnston 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).

  • Continuous fiber composite power transfer structures
    Patent number: 11473663
    Abstract: A gear includes a steel rim having an inner circumferential surface a composite gear body attached thereto. The composite gear body includes an opening in a central region thereof. A first continuous fiber composite layer extends from a first point on an outer circumferential edge of the composite gear body to a second point on the outer circumferential edge. A second continuous fiber layer extends from the first point to the second point. The composite gear body also includes a filler layer disposed between the first and second continuous fiber layers, the filler layer extending within an inner region of the composite gear body. The inner region extends radially between the opening and a boundary inward of the inner circumferential surface such that the composite gear body is thicker within the inner region.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: October 18, 2022
    Assignee: United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Gary D. Roberts, Robert F. Handschuh, Kelsen E. LaBerge, Joel P. Johnston, Sandi G. Miller