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).

  • Patent number: 9750192
    Abstract: An integrated fan and axle arrangement for an agricultural machine having a an impeller may include a front axle assembly and a fan housing. The front axle assembly supports one or more front wheels of the agricultural vehicle. The impeller rotates within the fan housing to provide an air flow within the agricultural vehicle. A laterally extending portion of the fan housing may form part of the front axle assembly, such that the laterally extending portion of the fan housing may provide structural rigidity to the front axle assembly for the support of the one or more front wheels.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: September 5, 2017
    Assignee: Deere & Company
    Inventors: Ryan P. Mackin, Justin C. Freehill, Mark L. Pearson, Jared R. Suster
  • Patent number: 9622409
    Abstract: A reciprocating knife assembly of an agricultural implement includes first and second elongate reciprocating knives disposed along a leading edge of an agricultural implement, the reciprocating knives being disposed end to end and extending colinearly for simultaneous reciprocation in opposite directions, the first and second reciprocating knives being supported for sliding movement on the agricultural implement in a lateral direction generally perpendicular to the direction of travel of the agricultural implement as it travels through an agricultural field harvesting crop, a first bell crank coupled to the first reciprocating knife to reciprocate said knife, a second bell crank coupled to the second reciprocating knife to reciprocate the second reciprocating knife, and a common drive coupled to the first and second bell cranks to drive both the first and second bell cranks in opposite directions simultaneously.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: April 18, 2017
    Assignee: Deere & Company
    Inventors: Bruce Alan Coers, Daniel James Burke, Ryan Patrick Mackin, James Kelley Adamson, Mark L. Pearson
  • Publication number: 20160057928
    Abstract: An integrated fan and axle arrangement for an agricultural machine having a an impeller may include a front axle assembly and a fan housing. The front axle assembly supports one or more front wheels of the agricultural vehicle. The impeller rotates within the fan housing to provide an air flow within the agricultural vehicle. A laterally extending portion of the fan housing may form part of the front axle assembly, such that the laterally extending portion of the fan housing may provide structural rigidity to the front axle assembly for the support of the one or more front wheels.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 3, 2016
    Inventors: RYAN P. MACKIN, JUSTIN C. FREEHILL, MARK L. PEARSON, JARED R. SUSTER
  • Publication number: 20150230408
    Abstract: A residue chopping and distribution arrangement (48) for a combine harvester (10) comprises a first straw chopper (50) and a second straw chopper (52) arranged side by side and expelling the chopped straw laterally. A first chaff spreader (106) located in front of the first straw chopper (50) is driven by a first drive shaft (68) that also drives a first rotor (66) of the first straw chopper (50). A second chaff spreader (108) located in front of the second straw chopper (52) is driven by a second drive shaft (100) that also drives a second rotor (92) of the second straw chopper (52).
    Type: Application
    Filed: February 14, 2014
    Publication date: August 20, 2015
    Inventors: NORBERT POHLMANN, MARK L. PEARSON, JOEL D. FERRIS
  • Publication number: 20150087366
    Abstract: A frame for reciprocating sieve assembly comprises a first side member (300, 308) that is elongate and extends longitudinally; a second side member (302, 310) that is elongate and extends longitudinally; a third side member (304, 312) that is elongate and extends transversely; a fourth side member (306, 314) that is elongate and extends transversely; a first hanger mount (206L, 210L) coupled to and extending between the first side member and the third side member; a second hanger mount (208L, 212L) coupled to and extending between the first side member and the fourth side member; a third hanger mount (206R, 210R) coupled to and extending between the second side member and the third side member; and a fourth hanger mount (208R, 212R) coupled to and extending between the second side member and the fourth side member; wherein the first side member, the second side member, the third side member, and the fourth side member are comprised essentially of an aluminum alloy; and wherein the first hanger mount, the seco
    Type: Application
    Filed: September 20, 2013
    Publication date: March 26, 2015
    Inventors: MARK L. PEARSON, JEFFREY R. WALTER, JAMES K. ADAMSON
  • Publication number: 20150087364
    Abstract: A sieve frame (118, 122) comprises two elongate members (300, 302, 308, 310) that are extruded.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 26, 2015
    Applicant: DEERE & COMPANY
    Inventors: JAMES K. ADAMSON, MARK L. PEARSON, JEFFREY R. WALTER
  • Publication number: 20120047867
    Abstract: A flexible reel (100) for an agricultural harvesting head (115) includes a plurality of reel sections (102, 104, 106) coupled together with flexible joints (210), wherein bats (206, 218) mounted on one reel section (102, 104, 106) overlap and interleave with the bats (206, 218) of an adjacent reel section (102, 104, 106).
    Type: Application
    Filed: August 31, 2010
    Publication date: March 1, 2012
    Inventors: Bruce Alan Coers, James K. Adamson, Mark L. Pearson, Janet R. Willett
  • Patent number: 8118651
    Abstract: A crop residue chopping and distributing arrangement has a straw chopper (60) and at least one impeller blower (100) arranged downstream of straw chopper (60), the impeller blower comprising throw paddles (102, 102?) that can be set in rotation about an axis of rotation (108). The throw paddles (102, 102?) extend in the axial direction only over a part of the axial dimension of impeller blower (100). Adjacent throw paddles (102, 102?) that are offset angularly in the circumferential direction are respectively arranged offset in the axial direction.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: February 21, 2012
    Assignee: Deere & Company
    Inventors: Dirk Weichholdt, Oliver Klein, Mark L. Pearson
  • Patent number: 8062109
    Abstract: A combine harvester includes a dust suppressor arrangement including an air duct arrangement which is coupled between an enclosed zone, extending rearwardly from the discharge end of the feederhouse and above a transverse crop conveying arrangement, and a cleaner fan arrangement so that the fan arrangement draws dust-laden air through the duct arrangement from the zone and discharges the dust-laden air into the chaffer and sieve arrangement of the crop cleaning arrangement.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: November 22, 2011
    Assignee: Deere & Company
    Inventors: Mark L. Pearson, Ryan P Mackin
  • Patent number: 7950989
    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: Grant
    Filed: August 8, 2008
    Date of Patent: May 31, 2011
    Assignee: Deere & Company
    Inventors: Chad A. Dow, Mark L. Pearson, Joel D. Ferris, Dirk Weichholdt, Rico Priesnitz, Fritz K. Lauer, Oliver Klein
  • Publication number: 20110099964
    Abstract: A reciprocating knife assembly of an agricultural implement includes first and second elongate reciprocating knives disposed along a leading edge of an agricultural implement, the reciprocating knives being disposed end to end and extending colinearly for simultaneous reciprocation in opposite directions, the first and second reciprocating knives being supported for sliding movement on the agricultural implement in a lateral direction generally perpendicular to the direction of travel of the agricultural implement as it travels through an agricultural field harvesting crop, a first bell crank coupled to the first reciprocating knife to reciprocate said knife, a second bell crank coupled to the second reciprocating knife to reciprocate the second reciprocating knife, and a common drive coupled to the first and second bell cranks to drive both the first and second bell cranks in opposite directions simultaneously.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 5, 2011
    Inventors: Bruce Alan Coers, Daniel James Burke, Ryan Patrick MacKin, James Kelley Adamson, Mark L. Pearson
  • Publication number: 20110045884
    Abstract: The invention relates to a crop residue chopping and distributing arrangement with a straw chopper (60) and at least one impeller blower (100) arranged downstream of straw chopper (60), the impeller blower comprising throw paddles (102, 102?) that can be set in rotation about an axis of rotation (108). The throw paddles (102, 102?) extend in the axial direction only over a part of the axial dimension of impeller blower (100). Adjacent throw paddles (102, 102?) that are offset angularly in the circumferential direction are respectively arranged offset in the axial direction.
    Type: Application
    Filed: July 21, 2010
    Publication date: February 24, 2011
    Inventors: Dirk Weichholdt, Oliver Klein, Mark L. Pearson
  • 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