Patents by Inventor Robert H. Roth

Robert H. Roth 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).

  • Segmented blade retainer
    Patent number: 4221542
    Abstract: A shrouded blade for insertion into an axial disk slot and having a radial spacer and a circumferential groove is provided with a segmented retainer bar which fits into the circumferential groove to axially retain the blade. The retainer bar includes flanges which extend radially inward on either side of the spacer such that the spacer provides positive placement for the retainer bar in both the radial and circumferential directions.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: September 9, 1980
    Assignee: General Electric Company
    Inventors: Ronald C. Acres, Robert D. Gravitt, Robert H. Roth