Patents by Inventor Heinz Sprau

Heinz Sprau 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).

  • Patent number: 8029346
    Abstract: A combine (10) includes a support frame (12) that can be moved across a field in a forward operating direction and a grain tank (42) fastened to it. The grain tank (42) is provided with side walls (58) that can be moved by means of an adjusting drive (68) between a retracted position for operation on public roads and for the storage of the combine (10) and an extended position for the harvesting operation. Each side wall (58) is connected in the upward direction with a cover (84) that is a component of a ring-shaped grain tank extension. The grain tank extension can be moved between an extended position in which it forms a ring that enlarges the grain tank (42) in the upward direction, and a retracted position, in which it encloses the grain tank (42) in the upward direction.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: October 4, 2011
    Assignee: Deere & Company
    Inventor: Heinz Sprau
  • Publication number: 20090270149
    Abstract: A combine (10) includes a support frame (12) that can be moved across a field in a forward operating direction and a grain tank (42) fastened to it. The grain tank (42) is provided with side walls (58) that can be moved by means of an adjusting drive (68) between a retracted position for operation on public roads and for the storage of the combine (12) and an extended position for the harvesting operation. Each side wall (58) is connected in the upward direction with a cover (84) that is a component of a ring-shaped grain tank extension. The grain tank extension can be moved between an extended position in which it forms a ring that enlarges the grain tank (42) in the upward direction, and a retracted position, in which it encloses the grain tank (42) in the upward direction.
    Type: Application
    Filed: April 29, 2009
    Publication date: October 29, 2009
    Inventor: Heinz Sprau