Patents by Inventor Helmut Spanlang

Helmut Spanlang 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).

  • Combine harvester
    Patent number: 4774968
    Abstract: A combine harvester is provided which comprises a housing (1) and a concave (3), which is adjustably mounted in the housing below a threshing drum (2). To permit a simple change of the mesh size of the concave, the concave (3) consists of a frame (9), which is movably mounted in the housing, and a replaceable insert (10), which is adapted to be slidably extracted from and inserted into the frame (9) through a lateral opening (13) of the housing in a direction which is parallel to the axis of the threshing drum (2).
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: October 4, 1988
    Inventor: Helmut Spanlang