Patents by Inventor Irvan A. Groothuis

Irvan A. Groothuis 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).

  • Conveyor for a combine harvester
    Patent number: 4751811
    Abstract: This invention relates to a flexible endless conveyor for a harvester pickup apron made up of a number of side-by-side rubber belts. Each belt has an integrally molded series of main cleat attachments for rigid tines. Each tine is set astride a central cleat while the leading and trailing edges of the tines are held by undercuts in a pair of subcleats which are perpendicular to each main cleat. The subcleats prevent any debris from lodging under the body of the tine during crop harvesting.
    Type: Grant
    Filed: March 14, 1986
    Date of Patent: June 21, 1988
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Irvan A. Groothuis