Patents by Inventor Thomas M. Duenwald

Thomas M. Duenwald 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).

  • Publication number: 20100037577
    Abstract: An oversleeve for preventing crop material from wrapping around an agricultural implement shaft. The oversleeve is disposed over the implement shaft and affixed to a stripper pan so it does not rotate with the shaft. The oversleeve is preferably made of a polymer composite material. Removal of dirt between the shaft and oversleeve is effected by a helical groove arranged so the dirt is driven to the ends of the oversleeve.
    Type: Application
    Filed: August 18, 2008
    Publication date: February 18, 2010
    Inventors: Philip J. Egging, Eric T. Woodford, Thomas M. Duenwald, Lisle J. Dunham, Calvin D. Meinders
  • Publication number: 20080282647
    Abstract: Large cylindrical bales of hay, straw, or other forage or fodder are usually wrapped with a filament-type product, typically twine, or a sheet-type product, typically netwrap material, after a bale has reached a predetermined size. A method and apparatus are disclosed that permits the bale to continue to form during part of the wrapping process. A delay occurs between the initiation of the wrapping step and the alarm for the operator to stop the forward movement of the baler. By inserting the wrap material to an entry throat of the baler, new crop material may be added to the bale while the leading edge of the wrap material travels around the bale. The operator is notified only when the feed of additional crop material needs to be stopped for the wrapping operation to conclude. The present invention is applicable to the use of sheet or filament wrapping materials for binding round bales.
    Type: Application
    Filed: July 11, 2008
    Publication date: November 20, 2008
    Inventors: William A. Hood, Thomas R. Walmsley, Calvin D. Meinders, Jerry E. Bandstra, Thomas M. Duenwald, Shane A. Bollinger
  • Patent number: 7409814
    Abstract: Large cylindrical bales of hay, straw, or other forage or fodder are usually wrapped with a filament-type product, typically twine, or a sheet-type product, typically netwrap material, after a bale has reached a predetermined size. A method and apparatus are disclosed that permits the bale to continue to form during part of the wrapping process. A delay occurs between the initiation of the wrapping step and the alarm for the operator to stop the forward movement of the baler. By inserting the wrap material to an entry throat of the baler, new crop material may be added to the bale while the leading edge of the wrap material travels around the bale. The operator is notified only when the feed of additional crop material needs to be stopped for the wrapping operation to conclude. The present invention is applicable to the use of sheet or filament wrapping materials for binding round bales.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: August 12, 2008
    Assignee: Vermeer Manufacturing Company
    Inventors: William A. Hood, Thomas R. Walmsley, Calvin D. Meinders, Jerry E. Bandstra, Thomas M. Duenwald, Shane A. Bollinger