Patents by Inventor Mark L. Pearson

Mark L. Pearson 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: 20090287380
    Abstract: A work machine includes a spreader configured for broadcast spreading of a material from the work machine; an input device configured to provide wind condition data; an orientation control device configured to determine an orientation of the work machine; and a controller coupled to the spreader, the input device and the GPS receiver. The controller is configured to execute program instructions to control the broadcast of the material from the work machine based on the wind condition data from the input device and based on the orientation of the work machine.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 19, 2009
    Inventors: Kirk J. Chervenka, Mark L. Pearson
  • Publication number: 20090042625
    Abstract: A combine is provided, with a harvested crop processing arrangement with an outlet for straw that is associated with an ejection drum and an endless conveyor arranged between the ejection drum and a straw chopper. In its rear region, the endless conveyor can be pivoted about a horizontal axis extending transverse to the direction of operation between a chopper position and a swath depositing position.
    Type: Application
    Filed: August 8, 2008
    Publication date: February 12, 2009
    Inventors: Chad A. Dow, Mark L. Pearson, Joel D. Ferris, Dirk Weichholdt, Rico Priesnitz, Fritz K. Lauer, Oliver Klein
  • Patent number: 7404761
    Abstract: A straw chopper for an agricultural harvesting unit includes a housing, and a rotor carried by the housing. The rotor includes a center chopping section and a pair of fans respectively positioned at longitudinally outboard ends of the center chopping section. Each fan includes a hub rotatable in a direction of rotation, and a plurality of fan blades connected with the hub at a plurality of angularly spaced locations about the hub. Each fan blade has a generally U-shaped portion with a rear wall and a pair of side walls extending from the rear wall in the direction of rotation.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: July 29, 2008
    Assignee: Deere & Company
    Inventors: Chad A. Dow, Mark L. Pearson
  • Patent number: 5468573
    Abstract: The electrolyte matrix and electrolyte reservoir plates in a molten carbonate fuel cell power plant stack are filled with electrolyte by applying a paste of dry electrolyte powder entrained in a dissipatable carrier to the reactant flow channels in the current collector plate. The stack plates are preformed and solidified to final operating condition so that they are self sustaining and can be disposed one atop the other to form the power plant stack. Packing the reactant flow channels with the electrolyte paste allows the use of thinner electrode plates, particularly on the anode side of the cells. The use of the packed electrolyte paste provides sufficient electrolyte to fill the matrix and to entrain excess electrolyte in the electrode plates, which also serve as excess electrolyte reservoirs. When the stack is heated up to operating temperatures, the electrolyte in the paste melts, the carrier vaporizes, or chemically decomposes, and the melted electrolyte is absorbed into the matrix and electrode plates.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: November 21, 1995
    Assignee: International Fuel Cells Corporation
    Inventors: Lawrance J. Bregoli, Mark L. Pearson
  • Patent number: 5466190
    Abstract: The cleaning assembly of the present invention is provided with a precleaner. The precleaner precleans and directs the chaff rich mixture from the separating assembly to the chaffer downstream from where the grain rich mixture from the threshing assembly is introduced to the chaffer. The precleaner is mounted to the chaffer and is provided with a step pan section and a louvered cleaning section for precleaning the chaff rich mixture.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: November 14, 1995
    Assignee: Deere & Company
    Inventors: David A. Skinner, Mark L. Pearson
  • Patent number: 4440179
    Abstract: In an axial flow rotary separator, a transition zone between the infeed section and threshing sections is modified to serve as a stone trap or arresting and ejecting device. Radially aligned inner and outer stone collars carried by the separator rotor and casing respectively, obtrude into the annular space between rotor and casing to define between them an annular slot or gate, decreasing or limiting the annular space so as to arrest the downstream passage of stones greater than a predetermined size. The inside surface of the casing immediately upstream of the stone collars is smooth and free of guide vanes to provide a track over which arrested stones may be propelled by conveyor flights of the rotor. A permanently open outlet in the stone track allows the rotor to eject stones tangentially and centrifugally into a stone sump connected to the casing. The stone sump is easily emptied by opening a door accessible from outside the combine body wall.
    Type: Grant
    Filed: October 18, 1982
    Date of Patent: April 3, 1984
    Assignee: Deere & Company
    Inventors: James H. Bassett, Timothy F. Christensen, Mark L. Pearson