Patents by Inventor Hans O. Sall

Hans O. Sall 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: 4361222
    Abstract: An apparatus for feeding long tree parts piled with approximate parallelism to a processing machine having an infeed spaced from the pile for receiving the parts endwise, has an arm which is positioned at a level above the pile and so as to span the space from the pile to the machine when positioned in alignment with the parts, this arm carrying a traveling series of grapples running longitudinally along the arm, actuating devices causing the grapples to clamp the parts sequentially and pull them endwise to the infeed of the machine.
    Type: Grant
    Filed: November 25, 1980
    Date of Patent: November 30, 1982
    Assignee: The Swedish University of Agricultural Sciences
    Inventor: Hans O. Sall