Patents by Inventor John Pfaff
John Pfaff 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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Publication number: 20260035877Abstract: A power machine can include a frame, a lift arm, and one or more electrical devices for control of one or more work elements. An electrical tilt actuator can be secured to the lift arm to change an attitude of an implement carrier, an electrical lift actuator can be secured to the frame to raise and lower a lift arm, an electrical drive motor can be mounted to a track frame to move a track, or a battery assembly and electrical control module can be secured to the frame, including rearward of an operator station.Type: ApplicationFiled: October 15, 2025Publication date: February 5, 2026Inventors: Brent Durkin, John Pfaff, Dennis Agnew, Matthew Sagaser
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Patent number: 12529209Abstract: Disclosed embodiments include power machines having doors with a display that allows the display of information, such as gauges, user inputs, mapped obstacles, boundaries, etc., allowing the operator of the machine to see the displayed information closer to the line of sight with the work area.Type: GrantFiled: June 12, 2020Date of Patent: January 20, 2026Assignee: Doosan Bobcat North America, Inc.Inventors: John Pfaff, Dennis Agnew, Matthew Sagaser, Joel Honeyman
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Patent number: 12460371Abstract: A power machine can include a frame, a lift arm, and one or more electrical devices for control of one or more work elements. An electrical tilt actuator can be secured to the lift arm to change an attitude of an implement carrier, an electrical lift actuator can be secured to the frame to raise and lower a lift arm, an electrical drive motor can be mounted to a track frame to move a track, or a battery assembly and electrical control module can be secured to the frame, including rearward of an operator station.Type: GrantFiled: September 3, 2024Date of Patent: November 4, 2025Assignee: Doosan Bobcat North America, Inc.Inventors: Brent Durkin, John Pfaff, Dennis Agnew, Matthew Sagaser
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Publication number: 20250290270Abstract: A lift arm structure for a power machine can include a lift arm movably securable to a power machine frame, and an implement carrier movably secured to the lift arm. The implement carrier can include an engagement assembly that is movable relative to the implement carrier to selectively secure and release an implement relative to the implement carrier. An electrical attachment actuator can be configured to move the engagement assembly to selectively secure and release the implement relative to the implement carrier. A control system can be configured to electronically control movement of the electrical attachment actuator to move the engagement assembly based on determining an operational state of one or more of the engagement assembly or the implement.Type: ApplicationFiled: May 30, 2025Publication date: September 18, 2025Inventors: Brent Durkin, John Pfaff, Dennis Agnew, Matthew Sagaser
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Publication number: 20250263906Abstract: A power machine system includes a first power machine with a first work element, a first power source to power the first work element, a first user input device to control the first work element, and a first processing device. The first processing device cooperatively controls the first power machine and a second power machine to complete a task. The cooperative control includes controlling the first power machine via local control of the first work element by the first user input device of the first power machine, and controlling the second power machine via remote control of a second work element of the second power machine by the first user input device of the first power machine.Type: ApplicationFiled: May 2, 2025Publication date: August 21, 2025Inventors: John Pfaff, Matthew Sagaser
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Patent number: 12353205Abstract: A control system for remotely controlling a power machine is provided. The remote control system can include a hand-held remote control device configured to be in communication with a mobile device. The hand-held remote control device can include a plurality of operator input modules configured for manual actuation. The mobile device can be configured to be operatively connected to the power machine by a wireless communication system. The mobile device can be configured to receive an input from the hand-held remote control device, and output a command signal to a control system on the power machine based on the received input to command one or more functions of the power machine.Type: GrantFiled: August 11, 2022Date of Patent: July 8, 2025Assignee: Doosan Bobcat North America, Inc.Inventors: John Pfaff, Matti Maurice Kariluoma
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Publication number: 20250010804Abstract: Power machines and loaders having doors with an integrated display that allows the display of information, such as gauges, user inputs, mapped obstacles, boundaries, etc., that allows the operator of the machine to see the displayed information closer to the line of sight with the work area. The display can show augmented reality information about a worksite.Type: ApplicationFiled: September 17, 2024Publication date: January 9, 2025Inventors: John Pfaff, Dennis Agnew, Joel S. Honeyman, Matthew Sagaser
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Patent number: 12180672Abstract: A power machine can include a frame, a lift arm, and one or more electrical devices for control of one or more work elements. An electrical tilt actuator can be secured to the lift arm to change an attitude of an implement carrier, an electrical lift actuator can be secured to the frame to raise and lower a lift arm, an electrical drive motor can be mounted to a track frame to move a track, or a battery assembly and electrical control module can be secured to the frame, including rearward of an operator station.Type: GrantFiled: March 2, 2021Date of Patent: December 31, 2024Assignee: Doosan Bobcat North America, Inc.Inventors: Brent Durkin, John Pfaff, Dennis Agnew, Matthew Sagaser
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Publication number: 20240426075Abstract: A power machine can include a frame, a lift arm, and one or more electrical devices for control of one or more work elements. An electrical tilt actuator can be secured to the lift arm to change an attitude of an implement carrier, an electrical lift actuator can be secured to the frame to raise and lower a lift arm, an electrical drive motor can be mounted to a track frame to move a track, or a battery assembly and electrical control module can be secured to the frame, including rearward of an operator station.Type: ApplicationFiled: September 3, 2024Publication date: December 26, 2024Inventors: Brent Durkin, John Pfaff, Dennis Agnew, Matthew Sagaser
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Publication number: 20240416748Abstract: Disclosed embodiments include power machines or loaders, and systems used on loaders, configured to augment the control of the loader to accomplish repetitive tasks. Also disclosed are methods of learning a task for augmented control of a loader, and methods of controlling a loader to perform a learned task to provide augmented control of the loader.Type: ApplicationFiled: March 21, 2024Publication date: December 19, 2024Inventors: John Pfaff, John Hoaby
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Patent number: 12122302Abstract: Power machines and loaders having doors with an integrated display that allows the display of information, such as gauges, user inputs, mapped obstacles, boundaries, etc., that allows the operator of the machine to see the displayed information closer to the line of sight with the work area. The display can show augmented reality information about a worksite.Type: GrantFiled: March 24, 2023Date of Patent: October 22, 2024Assignee: Doosan Bobcat North America Inc.Inventors: John Pfaff, Dennis Agnew, Joel S. Honeyman, Matthew Sagaser
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Publication number: 20240068197Abstract: A loader can include a lift arm structure coupled to a frame. The lift arm structure can move between a fully-lowered position and a fully-raised position and can include a lift arm and a connecting link. A first end of the connecting link can be pivotally coupled to the frame at a first pivot point and the lift arm can be pivotally coupled to a second end of the connecting link a second pivot point. The lift arm structure can further include a lift actuator configured to pivot the lift arm about the second pivot point and an extension actuator configured to pivot the connecting link about the first pivot point. The extension and lift actuators can be controlled to move the lift arm along a variety of travel paths between any two points within a lift envelope of the lift arm structure.Type: ApplicationFiled: August 28, 2023Publication date: February 29, 2024Inventors: Brent Durkin, Michael Schmidt, David Glasser, Matthew Sagaser, John Pfaff, Dennis Agnew
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Publication number: 20240068199Abstract: A power machine can include a frame, a power source, one or more workgroup actuators, and one or more tractive assemblies secured to the multi-piece frame. The frame can include a base frame and a bridge frame. The bridge frame can support the one or more actuators and the one or more tractive assemblies relative to the base frame. The tractive assemblies can include one or more drive actuators that is supported by the bridge frame. The base frame can support the power source relative to the bridge frame.Type: ApplicationFiled: August 28, 2023Publication date: February 29, 2024Inventors: Brent Durkin, Michael Schmidt, David Glasser, Matthew Sagaser, John Pfaff, Dennis Agnew
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Publication number: 20230347833Abstract: Power machines and loaders having doors with an integrated display that allows the display of information, such as gauges, user inputs, mapped obstacles, boundaries, etc., that allows the operator of the machine to see the displayed information closer to the line of sight with the work area. The display can show augmented reality information about a worksite.Type: ApplicationFiled: March 24, 2023Publication date: November 2, 2023Inventors: John Pfaff, Dennis Agnew, Joel S. Honeyman
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Publication number: 20230279641Abstract: A control device for a power machine can be configured to receive a request to initiate a power burst mode for the power machine, wherein the power burst mode defines one or more operational parameters for increasing an amount of power used by at least one of the plurality of electrical actuator. The control device may receive data associated with one or more operational conditions of the power machine and assess a power burst constraint associated with the power burst mode. In response to the power burst constraint being satisfied, the control device may control power to at least one of the plurality of electrical actuators according to the one or more operational parameters of the power burst mode.Type: ApplicationFiled: February 14, 2023Publication date: September 7, 2023Inventors: Christopher Young, Joel Honeyman, John Pfaff
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Patent number: 11738643Abstract: Disclosed embodiments include power machines having doors with a display that allows the display of information, such as gauges, user inputs, mapped obstacles, boundaries, etc., allowing the operator of the machine to see the displayed information closer to the line of sight with the work area.Type: GrantFiled: February 27, 2020Date of Patent: August 29, 2023Assignee: Clark Equipment CompanyInventors: John Pfaff, Dennis Agnew, Matthew Sagaser, Joel Honeyman
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Publication number: 20230193592Abstract: A control system is provided for a first power machine having a first actuator and a second power machine having a second actuator. The first power machine includes a first user input device. Aa first user input corresponding to a power machine operation can be received via the first user input device and a control mode for controlling the execution of the power machine operation can be determined. Controlling the execution of the power machine operation can selectively include: in a local control mode, controlling the first actuator to execute the power machine operation with the first power machine; and in a remote control mode, controlling the second actuator to execute the power machine operation with the second power machine.Type: ApplicationFiled: December 22, 2022Publication date: June 22, 2023Inventors: John Pfaff, Matthew Sagaser
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Patent number: 11648887Abstract: Power machines and loaders having doors with an integrated display that allows the display of information, such as gauges, user inputs, mapped obstacles, boundaries, etc., that allows the operator of the machine to see the displayed information closer to the line of sight with the work area. The display can show augmented reality information about a worksite.Type: GrantFiled: November 12, 2020Date of Patent: May 16, 2023Assignee: CLARK EQUIPMENT COMPANYInventors: John Pfaff, Dennis Agnew, Joel S. Honeyman
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Publication number: 20230048274Abstract: A control system for remotely controlling a power machine is provided. The remote control system can include a hand-held remote control device configured to be in communication with a mobile device. The hand-held remote control device can include a plurality of operator input modules configured for manual actuation. The mobile device can be configured to be operatively connected to the power machine by a wireless communication system. The mobile device can be configured to receive an input from the hand-held remote control device, and output a command signal to a control system on the power machine based on the received input to command one or more functions of the power machine.Type: ApplicationFiled: August 11, 2022Publication date: February 16, 2023Inventors: John Pfaff, Matti Maurice Kariluoma
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Publication number: 20230017850Abstract: A retrofit kit for a power machine can include a detection module configured to be removably secured to the power machine to detect objects around the power machine. A control module can be configured to receive detected object data from the detection module and control the display module based on the detected object data to provide one or more indicators of an object detected by the detection module.Type: ApplicationFiled: July 19, 2022Publication date: January 19, 2023Inventors: Kyle Thorson, Brent Durkin, Daniel Wood, Sam Fehringer, John Pfaff