Patents by Inventor Roger P. Lesher

Roger P. Lesher 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).

  • Arcuate spring
    Patent number: 5052664
    Abstract: An arcuate spring having a plurality of helical coils which are configured and dimensioned to provide an arcuate shape to the spring and being substantially free of internal stressses which would tend to urge the coils into linear alignment. The spring is designed to function under load conditions while maintaining its natural arcuate shape. The spring is adapted for use in a channel having an arcuate shape approximately matching that of the spring itself, for providing resilient force in a direction tangential to the arcuate centerline of the spring at its contact ends.
    Type: Grant
    Filed: November 1, 1989
    Date of Patent: October 1, 1991
    Assignee: Barnes Group Inc.
    Inventors: Roger P. Lesher, John J. Starzec