Patents by Inventor William D. Wendorf

William D. Wendorf 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).

  • Handling, including squaring, of conveyed shingled sheets
    Patent number: 4919414
    Abstract: A shingle handling and squaring device (18) is disposed between a sheet shingler (5) and stacker (9) and mounted above a stack infeed conveyor (19). The device includes a pair of side carriages (23,24), each of which carries a pair of freely rotatable longitudinally in-line tamping rollers or wheels (29-32), the peripheries of which are adapted to engage an edge of the traveling sheet material (6). The wheels are mounted for rotation about generally vertical but slightly inclined axes (48) and have tapered peripheries (51) so that the wheels nevertheless present truly vertical faces to the sheet material. The wheels are counterbalanced (56). In addition, when the stacker infeed nip roll (17) is raised by the entry of shingled sheets, a device (57-60) is provided to release the nip roll from the sheets to prevent binding.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: April 24, 1990
    Assignee: Marquip, Inc.
    Inventors: Carl R. Marschke, Richard H. Thomas, William D. Wendorf