Patents by Inventor Michael A. Derry

Michael A. Derry 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).

  • Drive assembly for universal joint
    Patent number: 5073144
    Abstract: A drive assembly for a universal joint of the tripot type comprises a drive block and bearing rollers which are retained by two cage pieces which are mounted on the respective opposite driving sides of the drive block so that the bearing rollers on each driving side are retained by a single cage piece. The cage pieces are retained on the drive block by fastening the cage pieces to each other or to the drive block.
    Type: Grant
    Filed: July 3, 1990
    Date of Patent: December 17, 1991
    Assignee: General Motors Corporation
    Inventors: Paul R. Stenglein, Robert C. Farrell, Michael A. Derry