Patents by Inventor Fred Harris

Fred Harris 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).

  • Granulator
    Patent number: 4114817
    Abstract: An improved granulator is disclosed having housing defining a granulation zone. A screen is attached to the housing within this zone and a contactor device moves repeatedly toward the screen to force material through the screen. A retractor device moves the screen and contactor apart when a predetermined force is reached therebetween. A shear pin sprocket drive connection can be employed to inactivate the contactor when a predetermined force is applied thereto.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: September 19, 1978
    Assignee: Olin Corporation
    Inventor: Fred A. Harris