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).
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Patent number: 9750192Abstract: 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: GrantFiled: August 29, 2014Date of Patent: September 5, 2017Assignee: Deere & CompanyInventors: Ryan P. Mackin, Justin C. Freehill, Mark L. Pearson, Jared R. Suster
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Patent number: 9622409Abstract: 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: GrantFiled: October 29, 2009Date of Patent: April 18, 2017Assignee: Deere & CompanyInventors: Bruce Alan Coers, Daniel James Burke, Ryan Patrick Mackin, James Kelley Adamson, Mark L. Pearson
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Publication number: 20160057928Abstract: 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: ApplicationFiled: August 29, 2014Publication date: March 3, 2016Inventors: RYAN P. MACKIN, JUSTIN C. FREEHILL, MARK L. PEARSON, JARED R. SUSTER
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Publication number: 20150230408Abstract: 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: ApplicationFiled: February 14, 2014Publication date: August 20, 2015Inventors: NORBERT POHLMANN, MARK L. PEARSON, JOEL D. FERRIS
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Publication number: 20150087366Abstract: 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 secoType: ApplicationFiled: September 20, 2013Publication date: March 26, 2015Inventors: MARK L. PEARSON, JEFFREY R. WALTER, JAMES K. ADAMSON
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Publication number: 20150087364Abstract: A sieve frame (118, 122) comprises two elongate members (300, 302, 308, 310) that are extruded.Type: ApplicationFiled: September 20, 2013Publication date: March 26, 2015Applicant: DEERE & COMPANYInventors: JAMES K. ADAMSON, MARK L. PEARSON, JEFFREY R. WALTER
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Publication number: 20120047867Abstract: 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: ApplicationFiled: August 31, 2010Publication date: March 1, 2012Inventors: Bruce Alan Coers, James K. Adamson, Mark L. Pearson, Janet R. Willett
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Patent number: 8118651Abstract: 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: GrantFiled: July 21, 2010Date of Patent: February 21, 2012Assignee: Deere & CompanyInventors: Dirk Weichholdt, Oliver Klein, Mark L. Pearson
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Patent number: 8062109Abstract: 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: GrantFiled: August 27, 2010Date of Patent: November 22, 2011Assignee: Deere & CompanyInventors: Mark L. Pearson, Ryan P Mackin
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Patent number: 7950989Abstract: 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: GrantFiled: August 8, 2008Date of Patent: May 31, 2011Assignee: Deere & CompanyInventors: Chad A. Dow, Mark L. Pearson, Joel D. Ferris, Dirk Weichholdt, Rico Priesnitz, Fritz K. Lauer, Oliver Klein
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Publication number: 20110099964Abstract: 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: ApplicationFiled: October 29, 2009Publication date: May 5, 2011Inventors: Bruce Alan Coers, Daniel James Burke, Ryan Patrick MacKin, James Kelley Adamson, Mark L. Pearson
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Publication number: 20110045884Abstract: 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: ApplicationFiled: July 21, 2010Publication date: February 24, 2011Inventors: Dirk Weichholdt, Oliver Klein, Mark L. Pearson
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Publication number: 20090287380Abstract: 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: ApplicationFiled: May 15, 2008Publication date: November 19, 2009Inventors: Kirk J. Chervenka, Mark L. Pearson
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Publication number: 20090042625Abstract: 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: ApplicationFiled: August 8, 2008Publication date: February 12, 2009Inventors: Chad A. Dow, Mark L. Pearson, Joel D. Ferris, Dirk Weichholdt, Rico Priesnitz, Fritz K. Lauer, Oliver Klein
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Patent number: 7404761Abstract: 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: GrantFiled: July 29, 2005Date of Patent: July 29, 2008Assignee: Deere & CompanyInventors: Chad A. Dow, Mark L. Pearson
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Patent number: 5468573Abstract: 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: GrantFiled: June 23, 1994Date of Patent: November 21, 1995Assignee: International Fuel Cells CorporationInventors: Lawrance J. Bregoli, Mark L. Pearson
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Patent number: 5466190Abstract: 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: GrantFiled: July 25, 1994Date of Patent: November 14, 1995Assignee: Deere & CompanyInventors: David A. Skinner, Mark L. Pearson
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Patent number: 4440179Abstract: 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: GrantFiled: October 18, 1982Date of Patent: April 3, 1984Assignee: Deere & CompanyInventors: James H. Bassett, Timothy F. Christensen, Mark L. Pearson