Patents by Inventor Mark D. Mathis

Mark D. Mathis 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: 6330767
    Abstract: An apparatus for efficiently removing grain from a grain storage device, which uses a plurality of augers. An unloading auger is used to begin removal of grain from a grain storage device. As the amount of grain decreases, a proximity sensor sends an activation signal to a cross auger that rests horizontally on the bottom of the grain storage device. The cross auger will pull the remaining grain to the entry point of an unloading auger. The unloading auger then removes the grain from the grain storage device.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: December 18, 2001
    Assignee: Gary W. Clem, Inc.
    Inventors: Brian W. Carr, Donald F. Handorf, Scott Sporrer, Ryan D. Jensen, Nick Merfeld, Mark D. Mathis
  • Patent number: 5664402
    Abstract: The seed packaging machine of this invention is mounted on a conventional plot combine. The harvested seed is blown to a receiving compartment where the seed is weighed and tested for moisture. A bag roll comprising a plurality of bag portions is fed through power rolls to a seed deposit station. A blower blows open the endmost bag and the seed is deposited in the bag portion. A sealing pressure bar is pivoted toward a thermal bar with the top of the bag portion therebetween to seal the bag. The bag is then released to drop into a storage bin. Bar codes are imposed on the bags and are scanned as they approach the deposit station. A computer is connected to all operating components to coordinate the sequential operation thereof. The range and row numbers of the harvested field are imposed on the computer memory, and the computer associates each bag containing harvested seed with the range and row from which the seed was harvested. The bags are perforated to facilitate subsequent drying of the seed.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: September 9, 1997
    Assignee: Gary W. Clem, Inc.
    Inventors: Arlan W. Sandvik, Brian W. Carr, Peter B. Moore, Donald F. Handorf, Kevin J. Alphs, Mark D. Mathis