Patents by Inventor Norman R. Bergland

Norman R. Bergland 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).

  • Seed tube for an agricultural seeding machine
    Patent number: 5533458
    Abstract: A hollow seed tube extending between a seed meter and a planting furrow is provided with a sensor aperture for receiving a seed sensor. The interior surface of the seed tube above the sensor aperture is provided with a ramp for directing the seed inwardly away from the sensor.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: July 9, 1996
    Assignee: Deere & Company
    Inventors: Norman R. Bergland, Donald R. Wisor, Netza Portillo