Patents by Inventor JOHN MAHRENHOLZ
JOHN MAHRENHOLZ 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: 11299866Abstract: A dozer blade attachment control system for a work machine comprises a dozer blade attachment coupled to the attachment coupler, a hydraulic circuit, and an electronic controller. The hydraulic circuit comprises a hydraulic pump, a diverter valve operable in a first position and second position, and a pressure compensated directional control valve. The electronic controller is communicatively coupled to the hydraulic circuit. The electronic circuit may modify the hydraulic circuit to one or more of a first configuration with the diverter valve in the first position for tilt, a second configuration with the diverter valve in the second position for angling, and a third configuration with the diverter valve in the second position and the pressure compensated directional control valve creating a shuttle flow path from a higher and a lower side of the hydraulic circuit for simultaneously tilting and angling.Type: GrantFiled: September 24, 2019Date of Patent: April 12, 2022Assignee: Deere & CompanyInventor: John Mahrenholz
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Patent number: 11286641Abstract: An attachment-configurable control system and method for a work machine, the work machine comprising a frame and a ground-engaging mechanism; a boom assembly coupled to the frame and moveable relative to the frame by a pair of first hydraulic cylinders, and an attachment coupler coupled to a distal section of the boom arms, the attachment coupler moveable relative to the frame by a pair of second hydraulic cylinders; an operator cab coupled to the frame, the operator cab comprising a joystick configured to move in at least a first direction, and at least a second direction wherein the second direction is transverse to the first direction; and a controller enabling an operator to command movement of a first attachment coupled to the boom assembly using a first movement command configuration a second attachment coupled to the boom assembly using a second movement command configuration.Type: GrantFiled: December 7, 2018Date of Patent: March 29, 2022Assignee: Deere & CompanyInventors: John Mahrenholz, Brett Graham, Alex Vandegrift, Nicholas Rokusek, Christopher Meyer
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Patent number: 11028557Abstract: A work vehicle comprising a work vehicle control comprising a standard configuration and an updated configuration. A controller is configured to receive a geospatial positioning signal, a boom position signal, an attachment position signal, and an operator input. The controller is configured to reference a memory device and change the work vehicle control between the standard configuration and the updated configuration. The controller is configured to control an elevation of the attachment according to a grade command.Type: GrantFiled: December 7, 2018Date of Patent: June 8, 2021Assignee: DEERE & COMPANYInventors: John Mahrenholz, Brett Graham, Alex Vandegrift, Nicholas Rokusek, Christopher Meyer, Walter Henson, II, Lance R. Sherlock
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Patent number: 10995471Abstract: A work vehicle comprising a frame supported by a ground engaging device. A boom assembly is coupled to the frame. A boom cylinder is coupled to the frame and the boom assembly. An attachment coupler is coupled to a distal portion of the boom assembly. At least one tilt cylinder is coupled to the boom assembly and the attachment coupler. An attachment is coupled to the attachment coupler. The attachment comprises an attachment frame coupled to the attachment coupler. The attachment frame has a lower portion and an upper portion. A joint is coupled to the lower portion of the attachment frame and a blade. The joint has an upper surface and a lower surface positioned a distance from the surface. An angle cylinder is coupled to the lower portion of the attachment frame and a dozer blade. A portion of the angle cylinder is positioned below the upper surface.Type: GrantFiled: February 21, 2019Date of Patent: May 4, 2021Assignee: DEERE & COMPANYInventors: Brett Graham, Nilesh Kumbhar, Nicholas Rokusek, John Mahrenholz, Michael Tigges, Walter Henson, II
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Patent number: 10988913Abstract: A work vehicle comprising a frame supported by a ground engaging device. A boom assembly is coupled to the frame. A boom cylinder is coupled to the frame and the boom assembly. An attachment coupler is coupled to a distal portion of the boom assembly. At least one tilt cylinder is coupled to the boom assembly and the attachment coupler. An attachment is coupled to the attachment coupler. The attachment comprises an attachment frame coupled to the attachment coupler. The attachment frame has a lower portion and an upper portion. A joint is coupled to the lower portion of the attachment frame and a blade. The joint has an upper surface and a lower surface positioned a distance from the surface. An angle cylinder is coupled to the lower portion of the attachment frame and a blade. A portion of the angle cylinder is positioned below the upper surface.Type: GrantFiled: February 21, 2019Date of Patent: April 27, 2021Assignee: DEERE & COMPANYInventors: Brett Graham, Nilesh Kumbhar, Nicholas Rokusek, John Mahrenholz, Michael Tigges
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Patent number: 10975547Abstract: A work vehicle is disclosed. The work vehicle comprises an attachment comprising a cutting edge. The attachment is configured to move from an operating position to a dump position. An operator input device is configured to receive a grade command. A grade control system is communicatively coupled to an operator input device and configured to receive the grade command and define a cutting plane. A controller is configured to receive a boom position signal, an attachment position signal, and the grade command. The controller is configured to maintain the cutting edge on the cutting plane in both the operating position and the dump position.Type: GrantFiled: December 7, 2018Date of Patent: April 13, 2021Assignee: Deere & CompanyInventor: John Mahrenholz
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Publication number: 20210087782Abstract: A dozer blade attachment control system for a work machine comprises a dozer blade attachment coupled to the attachment coupler, a hydraulic circuit, and an electronic controller. The hydraulic circuit comprises a hydraulic pump, a diverter valve operable in a first position and second position, and a pressure compensated directional control valve. The electronic controller is communicatively coupled to the hydraulic circuit. The electronic circuit may modify the hydraulic circuit to one or more of a first configuration with the diverter valve in the first position for tilt, a second configuration with the diverter valve in the second position for angling, and a third configuration with the diverter valve in the second position and the pressure compensated directional control valve creating a shuttle flow path from a higher and a lower side of the hydraulic circuit for simultaneously tilting and angling.Type: ApplicationFiled: September 24, 2019Publication date: March 25, 2021Inventor: JOHN MAHRENHOLZ
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Publication number: 20200270843Abstract: A work vehicle comprising a frame supported by a ground engaging device. A boom assembly is coupled to the frame. A boom cylinder is coupled to the frame and the boom assembly. An attachment coupler is coupled to a distal portion of the boom assembly. At least one tilt cylinder is coupled to the boom assembly and the attachment coupler. An attachment is coupled to the attachment coupler. The attachment comprises an attachment frame coupled to the attachment coupler. The attachment frame has a lower portion and an upper portion. A joint is coupled to the lower portion of the attachment frame and a blade. The joint has an upper surface and a lower surface positioned a distance from the surface. An angle cylinder is coupled to the lower portion of the attachment frame and a dozer blade. A portion of the angle cylinder is positioned below the upper surface.Type: ApplicationFiled: February 21, 2019Publication date: August 27, 2020Inventors: BRETT GRAHAM, NILESH KUMBHAR, NICHOLAS ROKUSEK, JOHN MAHRENHOLZ, MICHAEL TIGGES, WALTER HENSON, II
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Publication number: 20200270842Abstract: A work vehicle comprising a frame supported by a ground engaging device. A boom assembly is coupled to the frame. A boom cylinder is coupled to the frame and the boom assembly. An attachment coupler is coupled to a distal portion of the boom assembly. At least one tilt cylinder is coupled to the boom assembly and the attachment coupler. An attachment is coupled to the attachment coupler. The attachment comprises an attachment frame coupled to the attachment coupler. The attachment frame has a lower portion and an upper portion. A joint is coupled to the lower portion of the attachment frame and a blade. The joint has an upper surface and a lower surface positioned a distance from the surface. An angle cylinder is coupled to the lower portion of the attachment frame and a blade. A portion of the angle cylinder is positioned below the upper surface.Type: ApplicationFiled: February 21, 2019Publication date: August 27, 2020Inventors: BRETT GRAHAM, NILESH KUMBHAR, NICHOLAS ROKUSEK, JOHN MAHRENHOLZ, MICHAEL TIGGES
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Publication number: 20200181869Abstract: A work vehicle comprises a frame. At least one ground engaging device is coupled to the frame and configured to support the frame above a surface. A boom assembly is coupled to the frame and configured to move from a lowered position to a raised position. An attachment coupler is coupled to a distal portion of the boom assembly. At least one tilt cylinder coupled to the boom assembly and the attachment coupler. A boom lock is coupled to at least one of the frame and the boom assembly. The boom lock is configured to move from an unlocked position where the boom assembly is movable to a locked position where the boom assembly is locked to the frame in the lowered position.Type: ApplicationFiled: December 7, 2018Publication date: June 11, 2020Inventors: BRETT GRAHAM, ALEX VANDEGRIFT, CHRISTOPHER MEYER, JOHN MAHRENHOLZ, NILESH T KUMBHAR, JOHN S FOLTZ
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Publication number: 20200181874Abstract: A work vehicle is disclosed. The work vehicle comprises an attachment comprising a cutting edge. The attachment is configured to move from an operating position to a dump position. An operator input device is configured to receive a grade command. A grade control system is communicatively coupled to an operator input device and configured to receive the grade command and define a cutting plane. A controller is configured to receive a boom position signal, an attachment position signal, and the grade command. The controller is configured to maintain the cutting edge on the cutting plane in both the operating position and the dump position.Type: ApplicationFiled: December 7, 2018Publication date: June 11, 2020Inventor: JOHN MAHRENHOLZ
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Publication number: 20200181878Abstract: A work vehicle comprising a work vehicle control comprising a standard configuration and an updated configuration. A controller is configured to receive a geospatial positioning signal, a boom position signal, an attachment position signal, and an operator input. The controller is configured to reference a memory device and change the work vehicle control between the standard configuration and the updated configuration. The controller is configured to control an elevation of the attachment according to a grade command.Type: ApplicationFiled: December 7, 2018Publication date: June 11, 2020Inventors: JOHN MAHRENHOLZ, BRETT GRAHAM, ALEX VANDEGRIFT, NICHOLAS ROKUSEK, CHRISTOPHER MEYER, WALTER HENSON, II, LANCE R. SHERLOCK
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Publication number: 20200181876Abstract: An attachment-configurable control system and method for a work machine, the work machine comprising a frame and a ground-engaging mechanism; a boom assembly coupled to the frame and moveable relative to the frame by a pair of first hydraulic cylinders, and an attachment coupler coupled to a distal section of the boom arms, the attachment coupler moveable relative to the frame by a pair of second hydraulic cylinders; an operator cab coupled to the frame, the operator cab comprising a joystick configured to move in at least a first direction, and at least a second direction wherein the second direction is transverse to the first direction; and a controller enabling an operator to command movement of a first attachment coupled to the boom assembly using a first movement command configuration a second attachment coupled to the boom assembly using a second movement command configuration.Type: ApplicationFiled: December 7, 2018Publication date: June 11, 2020Inventors: JOHN MAHRENHOLZ, BRETT GRAHAM, ALEX VANDEGRIFT, NICHOLAS ROKUSEK, CHRISTOPHER MEYER
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Publication number: 20200181880Abstract: An attachment-configurable control system and method for a work machine, the work machine comprising a frame and a ground-engaging mechanism; a boom assembly coupled to the frame and moveable relative to the frame by a pair of first hydraulic cylinders, and an attachment coupler coupled to a distal section of the boom arms, the attachment coupler moveable relative to the frame by a pair of second hydraulic cylinders; an operator cab coupled to the frame, the operator cab comprising a joystick configured to move in at least a first direction wherein the first direction, and at least a second direction wherein the second direction is transverse to the first direction; and a controller enabling an operator to command movement of the attachment coupled to the boom assembly using a first movement command configuration a second movement command configuration.Type: ApplicationFiled: December 7, 2018Publication date: June 11, 2020Inventors: CHRISTOPHER MEYER, BRETT GRAHAM, DEAN TREANOR, JOHN MAHRENHOLZ, ALEX VANDERGRIFT, LANCE R. SHERLOCK, WALTER HENSON II
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Patent number: D887454Type: GrantFiled: March 11, 2019Date of Patent: June 16, 2020Assignee: DEERE & COMPANYInventors: Brett Graham, Nilesh Kumbhar, Nicholas Rokusek, John Mahrenholz, Michael Tigges