Patents by Inventor Gerald Wiertsema

Gerald Wiertsema 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).

  • Trailer tailgate
    Patent number: 7150487
    Abstract: A wedge-shaped trailer tailgate providing a loading ramp and a planar surface in combination with the trailer deck when the tailgate is in its transport position. A planar deck is better for cargo hauling, but also provides little wind resistance for improved hauling efficiency. The wedge shape with elastic bumpers attached provides for support on loading heavy objects such as motorcycles. Taillights are recessed into the thick end of the wedge-shaped trailer tailgate so they face backward when the tailgate is in its transport position and are shielded under the trailer deck when the tailgate is in its loading-ramp position.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: December 19, 2006
    Assignee: Midwest Industries, Inc.
    Inventors: Jon W. Devitt, Gerald Wiertsema
  • Trailer Tailgate
    Publication number: 20060125271
    Abstract: A wedge-shaped trailer tailgate providing a loading ramp and a planar surface in combination with the trailer deck when the tailgate is in its transport position. A planar deck is better for cargo hauling, but also provides little wind resistance for improved hauling efficiency. The wedge shape with elastic bumpers attached provides for support on loading heavy objects such as motorcycles. Taillights are recessed into the thick end of the wedge-shaped trailer tailgate so they face backward when the tailgate is in its transport position and are shielded under the trailer deck when the tailgate is in its loading-ramp position.
    Type: Application
    Filed: January 31, 2006
    Publication date: June 15, 2006
    Inventors: Jon Devitt, Gerald Wiertsema
  • Trailer tailgate
    Publication number: 20050280274
    Abstract: A wedge-shaped trailer tailgate providing a loading ramp and a planar surface in combination with the trailer deck when the tailgate is in its transport position. A planar deck is better for cargo hauling, but also provides little wind resistance for improved hauling efficiency. The wedge shape with elastic bumpers attached provides for support on loading heavy objects such as motorcycles. Taillights are recessed into the thick end of the wedge-shaped trailer tailgate so they face backward when the tailgate is in its transport position and are shielded under the trailer deck when the tailgate is in its loading-ramp position.
    Type: Application
    Filed: June 16, 2004
    Publication date: December 22, 2005
    Inventors: Jon Devitt, Gerald Wiertsema