Patents by Inventor Donald K. Landphair
Donald K. Landphair 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: 11665990Abstract: A work vehicle includes a frame and a row unit that is attached to the frame. The row unit includes a gauge wheel and a ground engaging implement. The gauge wheel is configured to ride on the ground surface and maintain the ground engaging implement at a predetermined vertical position with respect to the ground surface. Furthermore, the work vehicle includes a ground support unit that supports the frame for movement across the ground surface. The ground support unit includes an outer face. The outer face includes a non-treaded side area that defines a lateral side of the outer face. The outer face includes a tread area that is spaced laterally from the lateral edge. The tread area includes a plurality of projections. The non-treaded side area is aligned along the travel direction with respect to the gauge wheel.Type: GrantFiled: August 7, 2018Date of Patent: June 6, 2023Assignee: DEERE & COMPANYInventors: Donald K. Landphair, Nathan A. Mariman
-
Patent number: 11490560Abstract: An agricultural implement for distributing fertilizer to a plurality of rows includes a fertilizer container, a plurality of fertilizer metering units, and a plurality of motors. The fertilizer containers are used for storing the fertilizer prior to the fertilizer being distributed to the soil. The plurality of fertilizer metering units each include a housing and a metering device positioned in the housing. The housing has an inlet configured to receive fertilizer from the fertilizer container and an outlet. The plurality of motors are each drivingly coupled to and configured to rotate at least one metering device to distribute fertilizer to a row of the plurality of rows.Type: GrantFiled: July 10, 2019Date of Patent: November 8, 2022Assignee: DEERE & COMPANYInventors: Cristian T. Prado, Brandon M. McDonald, Donald K. Landphair
-
Publication number: 20220174859Abstract: A row unit for a seeding machine includes a ground view sensor coupled to the frame. The ground view sensor is operable to sense the furrow and generate depth signals corresponding to actual sensed depth of the furrow. The row unit also includes a controller configured to receive the signals, and a downforce adjustment mechanism coupled to the frame and to the controller. The controller is configured to activate the downforce adjustment mechanism to adjust a downforce on the frame based on the signals received by the controller.Type: ApplicationFiled: December 14, 2021Publication date: June 9, 2022Inventors: Jason D. Walter, Michael E. Frasier, Lawrence D. Green, James Z. Liu, Donald K. Landphair
-
Patent number: 11202404Abstract: A row unit for a seeding machine includes a ground view sensor coupled to the frame. The ground view sensor is operable to sense the furrow and generate depth signals corresponding to actual sensed depth of the furrow. The row unit also includes a controller configured to receive the signals, and a downforce adjustment mechanism coupled to the frame and to the controller. The controller is configured to activate the downforce adjustment mechanism to adjust a downforce on the frame based on the signals received by the controller.Type: GrantFiled: March 5, 2019Date of Patent: December 21, 2021Assignee: DEERE & COMPANYInventors: Jason D. Walter, Michael E. Frasier, Lawrence D. Green, James Z. Liu, Donald K. Landphair
-
Publication number: 20210007274Abstract: An agricultural implement for distributing fertilizer to a plurality of rows includes a fertilizer container, a plurality of fertilizer metering units, and a plurality of motors. The fertilizer containers are used for storing the fertilizer prior to the fertilizer being distributed to the soil. The plurality of fertilizer metering units each include a housing and a metering device positioned in the housing. The housing has an inlet configured to receive fertilizer from the fertilizer container and an outlet. The plurality of motors are each drivingly coupled to and configured to rotate at least one metering device to distribute fertilizer to a row of the plurality of rows.Type: ApplicationFiled: July 10, 2019Publication date: January 14, 2021Inventors: Cristian T. Prado, Brandon M. McDonald, Donald K. Landphair
-
Publication number: 20200281111Abstract: A row unit for a seeding machine includes a ground view sensor coupled to the frame. The ground view sensor is operable to sense the furrow and generate depth signals corresponding to actual sensed depth of the furrow. The row unit also includes a controller configured to receive the signals, and a downforce adjustment mechanism coupled to the frame and to the controller. The controller is configured to activate the downforce adjustment mechanism to adjust a downforce on the frame based on the signals received by the controller.Type: ApplicationFiled: March 5, 2019Publication date: September 10, 2020Inventors: Jason D. Walter, Michael E. Frasier, Lawrence D. Green, James Z. Liu, Donald K. Landphair
-
Publication number: 20200045872Abstract: A work vehicle includes a frame and a row unit that is attached to the frame. The row unit includes a gauge wheel and a ground engaging implement. The gauge wheel is configured to ride on the ground surface and maintain the ground engaging implement at a predetermined vertical position with respect to the ground surface. Furthermore, the work vehicle includes a ground support unit that supports the frame for movement across the ground surface. The ground support unit includes an outer face. The outer face includes a non-treaded side area that defines a lateral side of the outer face. The outer face includes a tread area that is spaced laterally from the lateral edge. The tread area includes a plurality of projections. The non-treaded side area is aligned along the travel direction with respect to the gauge wheel.Type: ApplicationFiled: August 7, 2018Publication date: February 13, 2020Inventors: Donald K. Landphair, Nathan A. Mariman
-
Patent number: 10143128Abstract: A seeding machine includes a main frame, and a row unit coupled to the main frame. The row unit has a row unit frame, a gauge wheel coupled to the row unit frame, and a furrow opener coupled to the row unit frame, the furrow opener having a stationary or rotating surface that contacts and moves soil. The row unit also includes a furrow closer, the furrow closer having a stationary or rotating surface that contacts and presses soil. The seeding machine also includes a downforce adjustment system for adjusting an amount of downforce applied to the row unit, the downforce adjustment system including a moisture sensor, a controller configured to receive a signal from the moisture sensor, and an actuator configured to change the amount of downforce applied to the row unit based on the signal received by the controller.Type: GrantFiled: June 8, 2017Date of Patent: December 4, 2018Assignee: DEERE & COMPANYInventors: Donald K. Landphair, Michael E. Frasier, James Z. Liu, Jason D. Walter, Lawrence D. Green
-
Patent number: 9801332Abstract: A seeding machine includes a main frame and a row unit coupled to the main frame. The row unit includes a row unit frame, a gauge wheel coupled to the row unit frame, a furrow opener coupled to the row unit frame, the furrow opener having a stationary or rotating surface that contacts and moves soil, and a furrow closer coupled to the row unit frame, the furrow closer having a stationary or rotating surface that contacts and presses soil. The seeding machine also includes a seeding adjustment system including a soil removal device, a moisture sensor, a controller configured to receive a signal from the moisture sensor corresponding to the detected moisture level, and an actuator configured to change a position of the soil removal device based on the signal received by the controller.Type: GrantFiled: September 30, 2015Date of Patent: October 31, 2017Assignee: Deere & CompanyInventors: Donald K. Landphair, Lawrence D. Green
-
Publication number: 20170265377Abstract: A seeding machine includes a main frame, and a row unit coupled to the main frame. The row unit has a row unit frame, a gauge wheel coupled to the row unit frame, and a furrow opener coupled to the row unit frame, the furrow opener having a stationary or rotating surface that contacts and moves soil. The row unit also includes a furrow closer, the furrow closer having a stationary or rotating surface that contacts and presses soil. The seeding machine also includes a downforce adjustment system for adjusting an amount of downforce applied to the row unit, the downforce adjustment system including a moisture sensor, a controller configured to receive a signal from the moisture sensor, and an actuator configured to change the amount of downforce applied to the row unit based on the signal received by the controller.Type: ApplicationFiled: June 8, 2017Publication date: September 21, 2017Inventors: Donald K. Landphair, Michael E. Frasier, James Z. Liu, Jason D. Walter, Lawrence D. Green
-
Patent number: 9675004Abstract: A seeding machine includes a main frame, and a row unit coupled to the main frame. The row unit has a row unit frame, a gauge wheel coupled to the row unit frame, and a furrow opener coupled to the row unit frame, the furrow opener having a stationary or rotating surface that contacts and moves soil. The row unit also includes a furrow closer, the furrow closer having a stationary or rotating surface that contacts and presses soil. The seeding machine also includes a downforce adjustment system for adjusting an amount of downforce applied to the row unit, the downforce adjustment system including a moisture sensor, a controller configured to receive a signal from the moisture sensor, and an actuator configured to change the amount of downforce applied to the row unit based on the signal received by the controller.Type: GrantFiled: September 30, 2015Date of Patent: June 13, 2017Assignee: Deere & CompanyInventors: Donald K. Landphair, Michael E. Frasier, James Z. Liu, Jason D. Walter, Lawrence D. Green
-
Publication number: 20170086361Abstract: A seeding machine includes a main frame, and a row unit coupled to the main frame. The row unit has a row unit frame, a gauge wheel coupled to the row unit frame, and a furrow opener coupled to the row unit frame, the furrow opener having a stationary or rotating surface that contacts and moves soil. The row unit also includes a furrow closer, the furrow closer having a stationary or rotating surface that contacts and presses soil. The seeding machine also includes a downforce adjustment system for adjusting an amount of downforce applied to the row unit, the downforce adjustment system including a moisture sensor, a controller configured to receive a signal from the moisture sensor, and an actuator configured to change the amount of downforce applied to the row unit based on the signal received by the controller.Type: ApplicationFiled: September 30, 2015Publication date: March 30, 2017Inventors: Donald K. Landphair, Michael E. Frasier, James Z. Liu, Jason D. Walter, Lawrence D. Green
-
Publication number: 20170086359Abstract: A seeding machine includes a main frame and a row unit coupled to the main frame. The row unit includes a row unit frame, a gauge wheel coupled to the row unit frame, a furrow opener coupled to the row unit frame, the furrow opener having a stationary or rotating surface that contacts and moves soil, and a furrow closer coupled to the row unit frame, the furrow closer having a stationary or rotating surface that contacts and presses soil. The seeding machine also includes a seeding adjustment system including a soil removal device, a moisture sensor, a controller configured to receive a signal from the moisture sensor corresponding to the detected moisture level, and an actuator configured to change a position of the soil removal device based on the signal received by the controller.Type: ApplicationFiled: September 30, 2015Publication date: March 30, 2017Inventors: Donald K. Landphair, Lawrence D. Green
-
Patent number: 9043949Abstract: A system and method of calibrating a meter of a product distribution machine, such as an agricultural air seeder is shown. The system uses one or both of optical and mass flow sensors to measure the product flow rate. The sensors are used to measure mass flow rate during a calibration process while the machine is in use. To improve sensor accuracy during the calibration process, the meter speed is changed to change the product flow rate to a rate at which the sensor accuracy is increased.Type: GrantFiled: September 14, 2012Date of Patent: June 2, 2015Assignee: DEERE & COMPANYInventors: James Z. Liu, Donald K. Landphair
-
Patent number: 8948980Abstract: A seeding machine, such as a row crop planter, is described which is adapted to switch between two or more seed varieties as the machine traverses a field. The control system uses a programmed quantity of seed representing a number of seeds in the seed meter that need to be substantially consumed once the flow of a first seed variety is stopped before introducing a second seed variety to minimize seed mixing. The seed quantity can be determined by a calibration process or published from the manufacturer or third parties. The seed quantity can also be part of a seeding prescription that includes assignment of where each seed variety is to be planted in a field. The seed quantity and the distance traveled to empty the meter can be used to optimize the planting operation including the machine direction which can also be part of the prescription.Type: GrantFiled: December 14, 2012Date of Patent: February 3, 2015Assignee: Deere & CompanyInventors: Elijah B. Garner, Kelby J. Krueger, Donald K. Landphair, Charles T. Graham
-
Patent number: 8863676Abstract: A twin-row planter is shown configured to plant different varieties of seed. Each planting unit of the twin-row is separately controlled to turn on or off the seed meter of the planting unit. This enables operation of only one seed meter of the two planting units in each twin-row. With the planting units supplied with different varieties of seed, the variety being planted can be controlled by controlling the seed meters of the two planting units within the twin-row.Type: GrantFiled: July 12, 2012Date of Patent: October 21, 2014Assignee: Deere & CompanyInventors: Thomas C. Brockmann, James R. Peterson, Donald K. Landphair, David J. Rylander, Michael E. Frasier, Elijah B. Garner
-
Publication number: 20140165891Abstract: A seeding machine, such as a row crop planter, is described which is adapted to switch between two or more seed varieties as the machine traverses a field. The control system uses a programmed quantity of seed representing a number of seeds in the seed meter that need to be substantially consumed once the flow of a first seed variety is stopped before introducing a second seed variety to minimize seed mixing. The seed quantity can be determined by a calibration process or published from the manufacturer or third parties. The seed quantity can also be part of a seeding prescription that includes assignment of where each seed variety is to be planted in a field. The seed quantity and the distance traveled to empty the meter can be used to optimize the planting operation including the machine direction which can also be part of the prescription.Type: ApplicationFiled: December 14, 2012Publication date: June 19, 2014Applicant: DEERE & COMPANYInventors: ELIJAH B. GARNER, KELBY J. KRUEGER, DONALD K. LANDPHAIR, CHARLES T. GRAHAM
-
Patent number: 8695396Abstract: A product distribution apparatus, shown in the form of an agricultural air seeder is disclosed having sensors to measure the mass flow through the distribution system, sensors to weigh the tank and the product therein, and sensors to measure the quantity of product in the tank. The sensors are used to measure the change in the quantity of product in the tank during a calibration process where the apparatus is operated over an area and the number of rotations of the meter are recorded. The data is then used to determine a mass flow rate per revolution of the meter. A monitoring method is also disclosed in which an ‘area to empty’ and ‘product needed’ to complete a field or task is displayed to the operator.Type: GrantFiled: August 12, 2010Date of Patent: April 15, 2014Assignee: Deere & CompanyInventors: Donald K Landphair, James Z. Liu, Lawrence D. Green, James J. Phelan, Samuel Santiago
-
Publication number: 20140076217Abstract: A system and method of calibrating a meter of a product distribution machine, such as an agricultural air seeder is shown. The system uses one or both of optical and mass flow sensors to measure the product flow rate. The sensors are used to measure mass flow rate during a calibration process while the machine is in use. To improve sensor accuracy during the calibration process, the meter speed is changed to change the product flow rate to a rate at which the sensor accuracy is increased.Type: ApplicationFiled: September 14, 2012Publication date: March 20, 2014Inventors: JAMES Z. LIU, Donald K. Landphair
-
Publication number: 20140014013Abstract: A twin-row planter is shown configured to plant different varieties of seed. Each planting unit of the twin-row is separately controlled to turn on or off the seed meter of the planting unit. This enables operation of only one seed meter of the two planting units in each twin-row. With the planting units supplied with different varieties of seed, the variety being planted can be controlled by controlling the seed meters of the two planting units within the twin-row.Type: ApplicationFiled: July 12, 2012Publication date: January 16, 2014Inventors: THOMAS C. BROCKMANN, JAMES R. PETERSON, DONALD K. LANDPHAIR, DAVID J. RYLANDER, MICHAEL E. FRASIER, ELIJAH B. GARNER