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| Number | Title | Issue Date |
| 8157030 | Driving and steering of motor vehicles An arrangement and a method are disclosed for driving and steering an engine driven vehicle of the type m which left and right hand wheels 120L, 120R are respectively driven from the engine through left and right hand transmissions 122L, 122 | 04/17/2012 |
| 8146689 | All-terrain vehicle and suspension system therefor An all-terrain vehicle having a unique suspension system for enabling handicapped individuals or invalids to easily access the vehicle and be self-transportable over ground or an ice surface. ... | 04/03/2012 |
| 8104552 | Control system and vehicle incorporating same A vehicle including a linkage-based motion control system for varying a parameter (e.g., velocity) of the vehicle as a geometric relationship between a vehicle input (e.g., velocity control lever) and a vehicle output (e.g., drive train) is modified. In one embodime... | 01/31/2012 |
| 8100204 | Mounting of hydrostatic transmission for riding lawn mower A hydrostatic transmission including a pump and motor connected by supply and return lines. The hydrostatic transmission can be an integrated unit mountable to a vehicle frame as a unit. The motor portion of the transmission is configured to be at least partially re... | 01/24/2012 |
| 8096374 | Control system and vehicle incorporating same A vehicle including a linkage-based motion control system for varying a parameter (e.g., velocity) of the vehicle as a geometric relationship between a vehicle input (e.g., velocity control lever) and a vehicle output (e.g., drive train) is modified. In one embodime... | 01/17/2012 |
| 8047310 | Power vehicle incorporating velocity control system The present invention relates to powered vehicles (e.g., lawn mowers) and, more particularly, to a velocity control system for use with such a vehicle. In one embodiment, the vehicle includes a power source such as an internal combustion engine and one or more drive... | 11/01/2011 |
| 8028776 | Integrated hydrostatic transmission for left and right wheel drive A hydrostatic transmission mountable to a frame of a vehicle for driving a left side or right side drive wheel. A motor portion of the transmission can extend outwardly from the frame and a pump portion can extend upwardly from the frame. The motor portion can be co... | 10/04/2011 |
| 8025114 | Differential steering control for a continuously variable transmission machine A differential steering control system and method for a machine includes a motor for steering the machine in a leftwards or a rightwards direction, a continuously variable transmission for moving the machine in a forwards or a backwards direction, and a control unit... | 09/27/2011 |
| 8020648 | Windrower tractor with rear wheel suspension A tractor has front wheels mounted on the frame at fixed angles and a pair of rear wheels each mounted on a respective castor assembly. Each of the castor assemblies has a vertical pivot axis mounted in a swivel support of an axle of the frame and a bottom transvers... | 09/20/2011 |
| 7997360 | Vehicle steering arrangement and method Vehicles with open loop hydraulic steering systems may suffer from jerky steering due to the necessity to have safety valves in the open loop system to prevent uncontrolled vehicle movement. Traditional open loop steering arrangements allow steering by controlling f... | 08/16/2011 |
| 7942220 | Differential steering control for a continuously variable transmission machine A differential steering control system and method for a machine includes a motor for steering the machine in a leftwards or a rightwards direction, a continuously variable transmission for moving the machine in a forwards or a backwards direction, and a control unit... | 05/17/2011 |
| 7931099 | Hydraulic traveling vehicle and control method for hydraulic traveling vehicle With a hydraulic traveling vehicle, a controller is configured and arranged to switch a merging/diverging valve to a merging state when a working equipment is driven with the merging/diverging valve being in a diverging state and with turning of the hydraulic travel... | 04/26/2011 |
| 7913781 | Omni-directional vehicle with full circumferential revolvable hitch An omni-directional vehicle (ODV) with a circular frame revolvably coupled to an appendage ring using a full circumferential coupling assembly. The appendage ring serves as a point of attachment for a push bar, trailer, tool, vehicle chassis, or other device. Two in... | 03/29/2011 |
| 7900722 | Electrically driven industrial vehicle A shovel loader (1) has a vehicle body frame (9), a travel device (5), a loader device (20), and a drive power generation section for generating drive power for making the travel device (5) travel. The vehicle body frame (9)... | 03/08/2011 |
| 7874385 | Self-moving car for the moving of trailer machines and of static machines or the like A self-moving car (1) for the moving of trailer machines (100), comprising a main chassis (2); wheels (4′, 4″) engaged with the chassis (2); a generating and feeding unit (5) and movable means (20) for coupling th... | 01/25/2011 |
| 7841429 | Hydraulic transaxle A hydraulic transaxle comprises: a housing having a fluid sump therein, the housing including mutually joined housing parts; a pair of first wheels disposed at one of front and rear portions of the vehicle; an axle disposed in the housing; a center section disposed ... | 11/30/2010 |
| 7793742 | Off road vehicle apparatus and method A ground engaged vehicle includes a front portion and a rear portion joined by an articulation. The articulation rotates around a longitudinal axis. An engine drives a hydrostatic pump which drives four hydrostatic motors, each of the hydrostatic motors in operative... | 09/14/2010 |
| 7762361 | Omni-directional aircraft and ordinance handling vehicle A powered omni-directional aircraft and ordinance handling vehicle which, in one embodiment, includes a circular frame and two drive wheels capable of independent powered forward and rearward rotation about a horizontal axis. The drive wheels are adapted to allow th... | 07/27/2010 |
| 7748480 | Control system having return-to-neutral biasing mechanism and vehicle incorporating same A control system for use with a ground maintenance vehicle such as a lawn mower. The control system may include one or more control handles movable between a neutral position and at least a first drive or reverse position. The system may further include a biasing me... | 07/06/2010 |
| 7740091 | Drive wheel steering system for lawnmower A drive wheel steering system for a lawnmower has a handle bar assembly that is pivotal about a vertical axis to provide directional control of the mower and rotatable about a horizontal axis to provide speed control of the mower. A control bar is operable to set a ... | 06/22/2010 |
| 7721830 | Tractor with automatic steering arrangement A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. It can be driven cab forward in a working mode with a header on the forward end. It is rotated to engine forward in the transport position for more stable higher speed travel.... | 05/25/2010 |
| 7721828 | Steering adjustment screw retainer A retaining strip arranged to impede the rotation of a stop screw is disclosed. The retaining strip connects with the stop screw on both sides of an attachment bracket. The retaining strip is stretched over the bracket and applies a pressure to the screw that serves... | 05/25/2010 |
| 7721829 | Traveling robot A traveling robot includes a main body frame having a front wheel supported in a front portion thereof in a traveling direction, a first traveling part having a first driving wheel to drive in the traveling direction, a first rear wheel disposed in a rear side of th... | 05/25/2010 |
| 7712555 | Steerable series two speed motor configuration A hydraulic system includes first and second pumps, first and second motors, and three valves for selectively creating combined and basic hydraulic flow. The arrangement of valves permits combined flow to be provided to both motors in series to cause high speed oper... | 05/11/2010 |
| 7686108 | Electrically released parking brake for zero turn radius mower The parking brakes at the drive wheels of a zero turning radius mower are automatically set when a pair of drive levers used for determining speed, steering and forward or reverse travel are placed in their neutral positions and swung outwardly to widespread, operat... | 03/30/2010 |
| 7621354 | Drive system for a tracked vehicle A drive system for a tracked vehicle having an internal combustion engine with a crankshaft aligned transversely to a direction of travel includes a steering drive; a differential transmission having traction drive elements, steering drive elements, and a pair of dr... | 11/24/2009 |
| 7617890 | Steering mechanism for self-propelled mower A steering mechanism for a wheel of a self-propelled vehicle includes a wheel spindle on which the wheel is rotatably mounted, a steering motor turning a steering tube defining a generally vertical steer axis, a propulsion drive motor turning a propulsion drive shaf... | 11/17/2009 |
| 7597160 | Four wheel drive system A four wheel drive system for bilaterally symmetric vehicles is characterized by separate drive systems for the front and rear wheels. Each drive system is operable to independently drive each wheel. The rear wheels of the vehicle are steering wheels which are conne... | 10/06/2009 |
| 7581603 | Omni-directional aircraft and ordinance handling vehicle A powered omni-directional aircraft and ordinance handling vehicle which, in one embodiment, includes a circular frame and two drive wheels capable of independent powered forward and rearward rotation about a horizontal axis. The drive wheels are adapted to allow th... | 09/01/2009 |
| 7578362 | Vehicles with dual path hydromechanical transmissions A vehicle having a frame with an engine mounted thereon. The engine has an output shaft that is connected to the input shaft of at least one hydromechanical transmission with a drive belt. A second hydromechanical transmission can then be used in association with th... | 08/25/2009 |
| 7523795 | Walk-behind lawn mower A walk-behind lawn mower includes at least one of: (a) a latch assembly for receiving a folded-up sulky for storage during transport and the like; (b) inboard mounted control rods extending downwardly from a handle control assembly area of the mower, so that actuato... | 04/28/2009 |
| 7520346 | Hydraulic power unit A compact dual hydraulic pump unit having a low profile configuration. The inlet and outlet ports of the pumps may be located on opposite transverse sides of the unit for easy connection to adjacent motors coupled to the drive wheels of a vehicle. ... | 04/21/2009 |
| 7510035 | Hydraulic transaxle A hydraulic transaxle comprises: a housing having a fluid sump therein, the housing including mutually joined housing parts; a pair of first wheels disposed at one of front and rear portions of the vehicle; an axle disposed in the housing; a center section disposed ... | 03/31/2009 |
| 7467677 | Control mechanism for zero turning radius mower A mechanism for controlling the movement of a zero turning radius power mower includes a single control arm movable in a forward direction and a rearward direction, and pivotable in a clockwise direction and in a counterclockwise direction. The control arm is connec... | 12/23/2008 |
| 7455130 | Vehicle having twin transmissions for driving respective wheels A vehicle comprises a vehicle frame, a prime mover mounted on the vehicle frame, a laterally turnable wheel disposed at one side of the vehicle frame, a pair of drive wheels disposed at the other side of the vehicle frame, a steering operation device, a traveling op... | 11/25/2008 |
| 7360613 | Transmission for speed changing and steering of a vehicle A transmission for speed changing and steering of a vehicle comprises a first HST and a first differential for speed changing and a second HST and a second differential for steering. The first HST is a combination of a hydraulic pump and motor. The pump is driven by... | 04/22/2008 |
| 7357595 | Pavement removal machine Portland Cement Concrete with steel reinforcement mats or rods used in airport runways, highways, and other objects need to have the cement broken up for recycling or disposal and the steel mat reused or the steel recycled. The pavement removal machine lifts the con... | 04/15/2008 |
| 7357214 | Four-wheel drive combine with slip control An agricultural combine has a variable displacement pump connected to four drive motors that drive four wheels. An electronic controller monitors the speed of each wheel and reduces the torque of the motor that drives the wheel when the wheel slips. The controller r... | 04/15/2008 |
| 7357375 | Deployment and recovery system for self deployed multi-function imaging sensors The invention enables the routine remote deployment of multi-function sensors from unmanned air ground platforms, such that a special assembly containing one sensor can be mounted and operated by remote control. The invention includes a circular frame with attached ... | 04/15/2008 |
| 7353651 | De-stroking dual hydrostatic pump A zero turning radius mower has a dual hydrostatic pump with right and left pump arms. A linkage between the pump arms and a pair of control levers destrokes both sides of the pump simultaneously if engine speed drops below a specified value. The linkage allows each... | 04/08/2008 |
