Patents by Inventor Nathaniel S. Doy
Nathaniel S. Doy 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: 20210285468Abstract: A milling machine may have a frame, ground engaging tracks that support the frame, and an actuator that adjusts a height of the frame relative to the track. The milling machine may have a control valve that selectively controls a flow of fluid into or out of the actuator based on the current supplied to the control valve. The milling machine may have a controller that determines the amount of current required to operate the actuator at a nominal actuator velocity and supplies that current to the control valve. The controller determines a measured actuator velocity based on a time required to extend or retract the actuator by a predetermined length, and adjusts the amount of current based on the measured and nominal actuator velocities. The controller also supplies the adjusted amount of current to the control valve to adjust the height of the frame relative to the track.Type: ApplicationFiled: March 12, 2020Publication date: September 16, 2021Applicant: CATERPILLAR PAVING PRODUCTS INC.Inventors: Nathaniel S. DOY, Hyppolite KUISSI, JR., Lee M. HOGAN
-
Publication number: 20210283971Abstract: A milling machine has a frame, ground engaging tracks that support the frame, a first actuator connecting the frame to a first track of the ground engaging tracks and a second actuator connecting the frame to a second track from the ground engaging tracks. The milling machine has an orientation sensor that determines an orientation of the frame. The milling machine has a controller that operates the first and second actuators to raise or lower the frame. The controller determines the frame orientation using the orientation sensor. The controller also determines a velocity error between actuator velocities of the first and second actuators based on the frame orientation and a target orientation of the frame. The controller determines a control parameter for the second actuator based on the velocity error and operates the second actuator using the determined control parameter.Type: ApplicationFiled: March 12, 2020Publication date: September 16, 2021Applicant: CATERPILLAR PAVING PRODUCTS INC.Inventors: Nathaniel S. DOY, Hyppolite KUISSI, Lee M. HOGAN
-
Patent number: 11041276Abstract: An implement with a ground-engaging tool may include a frame supported above a surface of a ground by a ground-engaging portion and a suspension, a tool supported by and adjustable relative to the frame and configured for working the ground, a housing arranged around portions of the tool and secured to the frame, and a monitor system configured for identifying an exposed condition of the tool. A method of managing an exposed condition of a ground-engaging tool and a method of operating an implement with a ground-engaging tool are also described.Type: GrantFiled: March 27, 2019Date of Patent: June 22, 2021Assignee: Caterpillar Paving Products Inc.Inventors: Nathaniel S. Doy, Lee M. Hogan, Jason W. Muir, Hyppolite Kuissi, Jacob M. Saari
-
Patent number: 10960938Abstract: A mobile machine having a machine frame with a lateral outer wall, an operator station having an outer side edge, an actuating system configured to move the operator station between a retracted position and a fully extended position that is laterally outward of the retracted position, wherein in the fully extended position, the outer side edge is a first distance outward of the lateral outer wall, a moveable component moveable between a first position and a second position, a sensor configured to send a signal indicative of the moveable component being in the first position, and a controller configured to limit the distance the operator station may move laterally outward of the retracted position to a second distance in response to receiving the signal from the sensor, wherein the second distance is less than the first distance.Type: GrantFiled: March 4, 2020Date of Patent: March 30, 2021Assignee: Caterpillar Paving Products Inc.Inventors: Nathaniel S. Doy, Lee M. Hogan, Nicholas B. Johnson
-
Patent number: 10876260Abstract: An implement with a ground-engaging tool may include a frame supported above a surface of a ground by a ground-engaging portion and a suspension and a tool supported by and adjustable relative to the frame and configured for working the ground. The implement may also include a plurality of ground sensors configured for capturing distance measurements to determine the position of the frame relative to the surface and a control and monitor system configured for establishing a nominal scratch position of the tool relative to the surface based on the distance measurements. A method of controlling a rotor tool depth of a milling machine and a method of operating a milling machine are also described.Type: GrantFiled: March 27, 2019Date of Patent: December 29, 2020Assignee: Caterpillar Paving Products Inc.Inventors: Jason W. Muir, Nathaniel S. Doy, Lee M. Hogan, Matthew-David S. Frantz, Brian J. Schlenker, Derek P. Nieuwsma
-
Patent number: 10844557Abstract: An implement with a ground-engaging tool may include a frame, a ground-engaging portion for supporting the frame on a surface of ground, and a suspension system coupling the ground-engaging portion to the frame and for adjusting the frame relative to the ground-engaging portion. The implement may also include a tool supported by and adjustable relative to the frame and configured for working the ground. The implement may also include a control and monitor system configured for establishing a nominal position of the tool relative to the surface and for establishing an actual position of the tool relative to the surface based on an offset adjustment. A method of determining a rotor tool depth of a milling machine and a method of operating a milling machine may also be provided.Type: GrantFiled: March 27, 2019Date of Patent: November 24, 2020Assignee: Caterpillar Paving Products Inc.Inventors: Nathaniel S. Doy, Lee M. Hogan, Jason W. Muir, Hyppolite Kuissi, Matthew-David S. Frantz
-
Patent number: 10845889Abstract: A method for enabling use of a plurality of common keypads on a working machine is disclosed. The method can comprise: providing a controller, a plurality of displays and the plurality of common keypads for use with the plurality of displays on the working machine, the plurality of common keypads having a same hardware configuration and a same firmware configuration as one another; communicating between the controller, the plurality of common keypads and the plurality of displays using a common data link; and associating over the common data link, a one of the plurality of displays with at least one of the plurality of common keypads.Type: GrantFiled: January 24, 2019Date of Patent: November 24, 2020Assignee: Caterpillar Inc.Inventors: Lee M. Hogan, Nathaniel S. Doy
-
Publication number: 20200308781Abstract: An implement with a ground-engaging tool may include a frame, a ground-engaging portion for supporting the frame on a surface of ground, and a suspension system coupling the ground-engaging portion to the frame and for adjusting the frame relative to the ground-engaging portion. The implement may also include a tool supported by and adjustable relative to the frame and configured for working the ground. The implement may also include a control and monitor system configured for establishing a nominal position of the tool relative to the surface and for establishing an actual position of the tool relative to the surface based on an offset adjustment. A method of determining a rotor tool depth of a milling machine and a method of operating a milling machine may also be provided.Type: ApplicationFiled: March 27, 2019Publication date: October 1, 2020Applicant: Caterpillar Paving Products Inc.Inventors: Nathaniel S. Doy, Lee M. Hogan, Jason W. Muir, Hyppolite Kuissi, Matthew-David S. Frantz
-
Publication number: 20200308782Abstract: An implement with a ground-engaging tool may include a frame supported above a surface of a ground by a ground-engaging portion and a suspension, a tool supported by and adjustable relative to the frame and configured for working the ground, a housing arranged around portions of the tool and secured to the frame, and a monitor system configured for identifying an exposed condition of the tool. A method of managing an exposed condition of a ground-engaging tool and a method of operating an implement with a ground-engaging tool are also described.Type: ApplicationFiled: March 27, 2019Publication date: October 1, 2020Applicant: Caterpillar Paving Products Inc.Inventors: Nathaniel S. Doy, Lee M. Hogan, Jason W. Muir, Hyppolite Kuissi, Jacob M. Saari
-
Publication number: 20200308783Abstract: An implement with a ground-engaging tool may include a frame supported above a surface of a ground by a ground-engaging portion and a suspension and a tool supported by and adjustable relative to the frame and configured for working the ground. The implement may also include a plurality of ground sensors configured for capturing distance measurements to determine the position of the frame relative to the surface and a control and monitor system configured for establishing a nominal scratch position of the tool relative to the surface based on the distance measurements. A method of controlling a rotor tool depth of a milling machine and a method of operating a milling machine are also described.Type: ApplicationFiled: March 27, 2019Publication date: October 1, 2020Applicant: Caterpillar Paving Products Inc.Inventors: Jason W. Muir, Nathaniel S. Doy, Lee M. Hogan, Matthew-David S. Frantz, Brian J. Schlenker, Derek P. Nieuwsma
-
Publication number: 20200256462Abstract: A rotary mixer can include a frame, a rotor attached to the frame, four wheels attached to the frame for moving the rotary mixer, and a drive system for driving the four wheels, the drive system can include four independent hydrostatic drive loops, each of the independent hydrostatic drive loops associated with one of the wheels such that each one of the independent hydrostatic drive loops independently drives one of the four wheels; wherein the drive system includes a pressure balance mode of operation for relatively good traction ground or road conditions, and a wheel speed synchronization mode of operation for relatively poor traction ground or road conditions.Type: ApplicationFiled: February 11, 2019Publication date: August 13, 2020Applicant: Caterpillar Paving Products Inc.Inventors: Thomas J. Olson, Corwin E. Storer, Ryan A. Enot, Matthew-David S. Frantz, Derek P. Nieuwsma, Rustin G. Metzger, Nathaniel S. Doy
-
Publication number: 20200248763Abstract: A rotor assembly for a rotary mixer is disclosed.Type: ApplicationFiled: February 1, 2019Publication date: August 6, 2020Applicant: Caterpillar Paving Products Inc.Inventors: Brian J. Schlenker, Jason W. Muir, Ryan A. Enot, Jacob M. Saari, Derek Nieuwsma, Nathaniel S. Doy, Lee M. Hogan
-
Publication number: 20200241653Abstract: A method for enabling use of a plurality of common keypads on a working machine is disclosed. The method can comprise: providing a controller, a plurality of displays and the plurality of common keypads for use with the plurality of displays on the working machine, the plurality of common keypads having a same hardware configuration and a same firmware configuration as one another; communicating between the controller, the plurality of common keypads and the plurality of displays using a common data link; and associating over the common data link, a one of the plurality of displays with at least one of the plurality of common keypads.Type: ApplicationFiled: January 24, 2019Publication date: July 30, 2020Applicant: Caterpillar Inc.Inventors: Lee M. Hogan, Nathaniel S. Doy
-
Publication number: 20200198709Abstract: A mobile machine having a machine frame with a lateral outer wall, an operator station having an outer side edge, an actuating system configured to move the operator station between a retracted position and a fully extended position that is laterally outward of the retracted position, wherein in the fully extended position, the outer side edge is a first distance outward of the lateral outer wall, a moveable component moveable between a first position and a second position, a sensor configured to send a signal indicative of the moveable component being in the first position, and a controller configured to limit the distance the operator station may move laterally outward of the retracted position to a second distance in response to receiving the signal from the sensor, wherein the second distance is less than the first distance.Type: ApplicationFiled: March 4, 2020Publication date: June 25, 2020Applicant: Caterpillar Paving Products Inc.Inventors: Nathaniel S. Doy, Lee M. Hogan, Nicholas B. Johnson
-
Patent number: 9388551Abstract: A control system for a machine equipped with a ripping tool. The control system includes a first operator input for generating a ripping control signal that initiates an auto-ripping mode. A second operator input is provided for generating a speed select signal for changing the transmission output speed of the machine to a selected transmission output speed. The system further includes a controller with a memory. The controller is linked to the first and second operator inputs. The controller is programmed to receive a ripping control signal from the first operator input and to activate the auto-ripping mode or auto-ripping mode and deactivate the auto-shift mode. The controller is also programmed to receive a speed select signal from the second operator input and to deactivate the auto-ripping mode and adjust the power source to the selected transmission output speed.Type: GrantFiled: February 26, 2014Date of Patent: July 12, 2016Assignee: Caterpillar Inc.Inventors: Joseph L. Faivre, Matthew A. Johnson, Nathaniel S. Doy
-
Publication number: 20150240452Abstract: A control system for a machine equipped with a ripping tool. The control system includes a first operator input for generating a ripping control signal that initiates an auto-ripping mode. A second operator input is provided for generating a speed select signal for changing the transmission output speed of the machine to a selected transmission output speed. The system further includes a controller with a memory. The controller is linked to the first and second operator inputs. The controller is programmed to receive a ripping control signal from the first operator input and to activate the auto-ripping mode or auto-ripping mode and deactivate the auto-shift mode. The controller is also programmed to receive a speed select signal from the second operator input and to deactivate the auto-ripping mode and adjust the power source to the selected transmission output speed.Type: ApplicationFiled: February 26, 2014Publication date: August 27, 2015Applicant: Caterpillar Inc.Inventors: Joseph L. Faivre, Matthew A. Johnson, Nathaniel S. Doy
-
Publication number: 20110153170Abstract: The disclosure describes, in one aspect, an implement control system including a controller operatively connected to an implement. The controller is adapted to receive a first signal and a second signal from a system in operative communication with the implement. The first signal is indicative of a desired load control condition and the second signal is indicative of a desired grade control condition. The controller is further adapted to determine a first target position having a first comparable characteristic associated with the first signal and to determine a second target position having a second comparable characteristic associated with the second signal. The controller is also adapted to generate a control signal to move the implement to the first target position or to the second target position based in part on the first comparable characteristic and the second comparable characteristic.Type: ApplicationFiled: December 23, 2009Publication date: June 23, 2011Applicant: Caterpillar Inc.Inventors: Eric J. Dishman, Erik J. Eddington, Steven R. Krause, Wayne A. Lamb, Ryan A. Kingdon, Nathaniel S. Doy