Patents by Inventor John L. Sims

John L. Sims 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).

  • Composite flapping flexure
    Patent number: 6708921
    Abstract: A composite flapping flexure is disclosed in which load carrying belts are located on the upper and lower surfaces of the flexure, and minor load carrying off-axis layers are located at the mid-plane of the flexure.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: March 23, 2004
    Assignee: Bell Helicopter Textron, Inc.
    Inventors: John L. Sims, Patrick R. Tisdale, Ernie A. Powell
  • Composite flapping flexure
    Publication number: 20020153450
    Abstract: A composite flapping flexure is disclosed in which load carrying belts are located on the upper and lower surfaces of the flexure, and minor load carrying off-axis layers are located at the mid-plane of the flexure.
    Type: Application
    Filed: April 10, 2002
    Publication date: October 24, 2002
    Inventors: John L. Sims, Patrick R. Tisdale, Emie A. Powell