Patents by Inventor Carl D. Roberts

Carl D. Roberts 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).

  • Blocked change gear transmission and improved blocker and jaw clutch assembly therefor
    Patent number: 4176736
    Abstract: An improved, blocked, change gear transmission having an input shaft normally driven by a one-way prime mover and an output shaft normally connected to a driven device is provided. The transmission utilizes at least one improved blocker and jaw clutch assembly which allows engagement of a selected ratio gear under static conditions, i.e., when the driven device is at rest and the blocked transmission is in neutral.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: December 4, 1979
    Assignee: Eaton Corporation
    Inventors: Elmer A. Richards, Carl D. Roberts