178 patents
Page 4 of 9
Utility
Hydraulic Leveling Circuit for Power Machines
4 Aug 22
A hydraulic assembly for an extendable lift arm assembly can include an extension cylinder, a leveling cylinder, a main control valve, a flow combiner/divider, and one or more flow-blocking arrangements.
Kevin Zent, David Glasser, Scott LaCoe, Daniel Krieger, Matthew Kaldor
Filed: 9 Nov 21
Utility
Localized Navigation System Controller for Power Machine
21 Jul 22
Disclosed are power machines and systems configured to provide autonomous or augmented control of the machines in a localized positioning environment in which GPS navigation is not available.
Yizhe Chang, Robert J. Gonzlez, Jingnan Shi, Sirapatsorn Pongpiriyakarn, Felipe Borja, Chi-yen Lee, Maxwell Maleno
Filed: 6 May 20
Utility
Externally regulated control for drive pump
19 Jul 22
A control system is provided for a power machine that includes a hydraulic charge circuit with a hydraulic charge pump, and a variable displacement drive pump.
Douglas Kallas, Charles Young, Sloan Balo
Filed: 21 Dec 20
Utility
Systems and methods for bypass of hydraulic charge circuits
12 Jul 22
A control system for a hydrostatic drive system can include a hydraulic charge pump circuit having a hydraulic load and a tank.
Douglas Kallas, Charles Young
Filed: 21 Dec 20
Utility
Track assembly for power machine
12 Jul 22
Track assemblies (242; 300) for power machines (100; 200) include a track frame (243; 302), including a primary portion (304) and a second portion (306) moveable with respect to the primary portion.
Craig R. Roske, Scott J. LaCoe
Filed: 23 Sep 20
Utility
Sweeper Implement
23 Jun 22
Disclosed embodiments include implements with a linkage and suspension configured to provide downward pressure on tool to allow it to maintain a desired level of contact with a work surface.
John G. Liebl, Kyle R. Lundeen
Filed: 20 Apr 20
Utility
Immobilization of Electrohydraulic Power Machine
23 Jun 22
Power machines having an electric power source and a controller configured to provide improved immobilization of power machine functions when an operator is not present or properly positioned within an operator station or compartment of the power machine.
Bohuslav Vasicek, Vaclav Schornik
Filed: 25 Mar 20
Utility
Frame access aperture
7 Jun 22
Power machine frames, and corresponding power machines such as skid steer loaders, have fully arcuate access aperture features formed in a first frame panel providing access to a volume internal to the first frame panel or otherwise positioned interior to the frame.
Brent Durkin, Michael J. Schmidt
Filed: 30 Aug 19
Utility
Power lift
24 May 22
Power machines and control systems used thereon include a lift cylinder, a tilt cylinder, and a slave cylinder mechanically connected to assist the lift cylinder with raising a boom.
Nicolas Gales
Filed: 29 Aug 17
Utility
Fuel recirculation method and valve
17 May 22
Fuel recirculation methods, fuel supply circuits and fuel recirculation valves for selectively mixing hot return fuel from a diesel engine with fuel from a tank before providing it to back to the engine.
Shaun Riveland, Ryan Wenz, Brandon Kisse, Justin Muscha
Filed: 15 Dec 16
Utility
CAN bus terminating resistor arrangement
26 Apr 22
A mobile power source includes an electrical generator, a controller, a resistor, and a user-activated switch positioned on a control panel of the electrical generator, the user-activated switch is configured to move between at least a first position and a second position.
Nicholas Harknett, Sean Herman
Filed: 10 Mar 21
Utility
Traction control for steering articulated power machine
19 Apr 22
Disclosed embodiments include steering circuits utilizing a controllable cross-feed loop between left and right drive motor sides of an articulated power machine to reduce skidding caused by a turning operation in which an articulation actuator changes an articulation joint angle between a front frame member and a rear frame member of the power machine.
Kevin J. Zent, Daniel J. Krieger
Filed: 24 Feb 20
Utility
Object detection external to vehicle
22 Mar 22
Disclosed embodiments include power machines such as loaders, and systems used on power machines, configured to detect the presence of an object in a zone adjacent the rear or sides of the power machine and to responsively control the power machine to stop or slow work functions.
John Pfaff
Filed: 6 Aug 19
Utility
Windows for loader cab
1 Mar 22
A cab for a power machine having a side window and a rear window each hingedly connected to the same one of a right rear cab frame post and a left rear cab frame post such that when the side window and rear window are both opened by latches to rotate outward relative to the same rear post an airflow path is created diagonally across the operator between a front corner of the cab and an opposite rear corner of the cab.
Mark W. Binstock
Filed: 27 Feb 20
Utility
Rigid track mount
1 Mar 22
Disclosed embodiments include track mounts configured to secure a track assembly to a frame of a power machine, and power machines including the same.
Cameron Hanson
Filed: 16 Oct 19
Utility
Assist Mechanism for Moving Cab on Power Machine
24 Feb 22
A power machine having a frame and a cab pivotally attached to the frame at a first cab pivot, such that the cab pivots about a first transverse axis from an operational position to a service position, includes a link mechanism and a first spring.
Benjamin Storhaug, Daniel J. Krieger
Filed: 19 Aug 21
Utility
Hydraulic coupling
22 Feb 22
Disclosed embodiments include power machines, implement coupling systems and methods in which hydraulic or electric coupling between an implement and the power machine is made automatically using an existing actuator, for example a tilt actuator, of the power machine.
Dennis Agnew, Brent C. Durkin, Caren A. Loebs, Daniel J. Krieger
Filed: 17 Jun 19
Utility
Baffles for mower deck
1 Feb 22
A mower deck includes a top deck, a front wall, a rear wall opposite the front wall and a first side wall.
Randy Hilgart, Mark J. Wegner, Jeff Zur, Anthony S. Weber
Filed: 26 Oct 18
Utility
Mechanical Self-leveling Lift Arm Structure for Power Machine
27 Jan 22
A lift arm structure for a power machine with a frame can include a multi-bar linkage that is pivotally secured to the frame and a leveling link that is pivotally secured to the multi-bar linkage.
Daniel J. Krieger
Filed: 12 Oct 21
Utility
Post driving implement
28 Dec 21
Disclosed embodiments include post driving implements which attach to a power machine such as a loader in order to pick up posts of various sizes and materials and/or to drive the posts into the ground.
Cody Erhardt, Brian Dehnert, Patrick Link
Filed: 12 Mar 20