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Kubota Corporation Patents
Assignee:
Kubota Corporation
Address:
Osaka, JP
No. of patents:
369
Patents:


1 2 3 4 5 6 7 8


Patent Number Title Of Patent Date Issued
6962131 Water cooling device of vertical multi-cylinder engine November 8, 2005
A water cooling device of a vertical multi-cylinder engine includes a cylinder block (1) one side wall of which is provided with a side water passage (3) running along a longitudinal direction of the cylinder block (1). The cylinder block (1) has an interior area provided with a cylinder
6959780 Vibration damping system for an engine mounted on a vehicle November 1, 2005
A vibration damping system for an engine mounted on a vehicle has mounting elements attached to frames of the vehicle, through which elements the engine is mounted on the frames, a damping weight provided outwardly of the engine, and a weight support unit fixed at one end thereof to the
6957639 Inclined engine October 25, 2005
In an inclined engine where a cylinder (2) projects from a crank case (1) obliquely and upwardly, when seen in a direction parallel to a center axis (3) of a crank shaft (10), under a specific observation condition in which the cylinder projecting direction is deemed as an upper right si
6955628 Change-speed system for utility vehicle October 18, 2005
A change-speed system for a utility vehicle includes a gear change-speed device operated for change speed in response to an operation of an actuator, a hydraulic clutch for selectively engaging/disengaging power transmission to the gear change-speed device, a current-controlled valve
6931827 Grass collecting apparatus and a lawn mower having such a grass collecting apparatus August 23, 2005
A grass collecting apparatus for directing grass clippings cut by a mower unit to a grass catcher. The apparatus includes a grass collecting duct for guiding the grass clippings from the mower unit to the grass catcher, the duct having an outlet portion leading to the grass catcher defin
6921517 Process and apparatus for the pyrolysis of hydrocarbon gas July 26, 2005
A hydrocarbon gas to be decomposed, optionally mixed with water vapor, is allowed to flow through the gap between various porous tubes 4 constituting a group of porous tubes provided extending vertically in a decomposition reaction column 1 while air or oxygen is jetted homogeneously
6901909 Centrifugal governor for horizontal diesel engines June 7, 2005
The centrifugal governor ensures that the governor lever (3) can apply a synthesized tensile force (STF) of the tensile forces (GS) of the main spring (4) and the tensile force (IS) of the idling spring (5) to the fuel adjuster (2) of the fuel pump (1) so as to increase the supply of fue
6899076 Swirl chamber used in association with a combustion chamber for diesel engines May 31, 2005
A swirl chamber used in association with a combustion chamber for diesel engines, includes a pair of sub-nozzle holes on the opposite sides of a main nozzle hole to supply a secondary air into the swirl chamber, the sub-nozzle holes being positioned such that the secondary air ejected
6890042 Crawler traveling apparatus May 10, 2005
A crawler traveling apparatus includes a rubber crawler belt having a plurality of driving projections formed with a predetermined peripheral pitch on an inner peripheral face of the belt, a drive wheel rotatable when engaged with the driving projections of the crawler belt for driving
6889569 Change speed apparatus for a working vehicle that engages in an operation while moving forward a May 10, 2005
A change speed apparatus for a working vehicle includes a first shaft for receiving driving torque from an engine, a second shaft for transmitting the driving torque to a rear wheel differential, a change speed mechanism for changing speed of the driving torque received from the first sh
6887182 Change-speed control system for utility vehicle having stepless change-speed apparatus for speed May 3, 2005
A change-speed control system is provided for a utility vehicle having a stepless change-speed apparatus for speed-changing an engine output and transmitting the speed-changed output to a traveling unit. The system includes an engine speed governor for adjusting speed of the engine, an
6886277 Small swivel type working vehicle May 3, 2005
A small swivel type working vehicle includes a running device (4), a swivel base (2) mounted on the running device (4) to be swivelable about a vertical swivel axis (X), a driver's seat (5) mounted on the swivel base (2), a control box (6) mounted upright on a top surface of the swivel b
6879261 Operator presence sensing apparatus for a seat of a vehicle April 12, 2005
An operator presence sensing apparatus for a seat of a vehicle includes a base member (7, 8) for supporting the seat (6), and a relay member (9) extending vertically between the base member and the seat. The seat is oscillatable about a pivot axis (X) extending in a transverse direction
6877302 Mid-mount mower April 12, 2005
A mid-mount mower including a body frame supported above the ground by front wheels and rear wheels, and a mower unit vertically movably suspended from the body frame between the front wheels and rear wheels. The mower unit includes a mower deck having a top board, and a front wall,
6874319 Hydrostatic transmission apparatus April 5, 2005
A hydrostatic continuously variable transmission device includes: a variable displacement type hydraulic pump; a variable displacement type first hydraulic motor operated by a hydraulic oil from the hydraulic pump; a fixed displacement type second hydraulic motor operated by the hydrauli
6874305 Lawn mower having selectively drivable wheels April 5, 2005
A lawn mower having selectively drivable wheels, includes dirigible front drive wheels, a pair of right and left rear drive wheels, a body frame, an engine supported by the body frame, a mower unit vertically movably supported by the body frame forwardly of the rear drive wheels, a chang
6872043 Swivel type working vehicle March 29, 2005
A swivel type working vehicle includes a running device (30), a swivel base (32) mounted on the running device to be swivelable about a vertical swivel axis (31), a swing bracket (5) supported to be swingable about a vertical axis by a flange unit (4) disposed at a front end of the swive
6871575 Hydraulic control apparatus for controlling hydraulic cylinder for implement March 29, 2005
A hydraulic control apparatus for controlling a hydraulic cylinder for an implement selectively mounted to a work vehicle. The apparatus includes a hydraulic power source, a four-position changeover control valve disposed between the hydraulic cylinder and the hydraulic power source, and
6854483 Manual control mechanism for lift unit February 15, 2005
A manual control mechanism for a lift unit having a lift arm and a hydraulic cylinder for lifting the lift arm up and down. The mechanism includes a control valve configured as a three-position switchover valve for selectively providing lowering, neutral and elevating conditions acco
6854249 Lawn mower February 15, 2005
A lawn mower comprises a blade drive shaft with a blade rotatably mounted inside a mower deck supported by a vehicle body, a blower unit including a cylindrical blower housing connected to a grass clippings discharging section provided in a side end region of the mower deck, a vertical d
6851328 Control apparatus for transmission February 8, 2005
A transmission control apparatus includes transmission lines disposed between a pair of transmission shafts and a hydraulic multiple disc transmission clutch disposed on one side of the transmission lines. Power from an engine is transmitted via one of the transmission lines to a tra
6849028 Propelling transmission control apparatus for a working vehicle having a hydrostatic stepless tr February 1, 2005
A propelling transmission control apparatus for a working vehicle having a hydrostatic stepless transmission comprises a variable displacement type hydraulic pump (35), a change speed control mechanism (80) for converting a displacement of a control device (55) to a control displacement
6848246 Mower unit attachable to a vehicle body February 1, 2005
A mower unit attachable to a vehicle body includes a mower deck. The mower deck defines a grass discharge opening at an opposite side of one side wall, and has a plurality of rotary blades juxtaposed inside the mower deck to be rotatable about vertical axes. All of the rotary blades are
6840029 Lawn mower having a displaceable grass catcher January 11, 2005
A lawn mower for transmitting grass clippings cut by a mower unit (4) to a grass catcher (32) through a grass collecting duct (31). The lawn mower includes a body frame (1), and a bracket unit (39) attached to a rear of the body frame (1). A gate frame (40) is provided for supporting the
6837324 Engine enclosure January 4, 2005
An engine enclosure for use on a vehicle having a cooling system for a vertical shaft type engine with a cooling air intake fan disposed above the engine. The engine enclosure comprises an upper hood for covering the engine from above, the upper hood having an upper surface and right and
6821006 Headlight assembly for a working vehicle November 23, 2004
A headlight assembly for a working vehicle includes a body (16) having a front frame (19), and side frames (20) bent and extending rearward from opposite ends of the front frame, and light source units mounted in a pair of right and left openings (21) formed in the body. The body (16) is
6820403 Lawn mower rear drive November 23, 2004
A lawn mower includes front wheels (2), a pair of right and left rear drive wheels (3), a body frame (1), a mower unit (4) supported by the body frame (1) forwardly of the rear drive wheels (3), a grass catcher 32 attached to a rear end of the body frame (1), an engine (7) mounted on the
6780148 Decanter type centrifugal separator with restriction effected discharge route August 24, 2004
A decanter type centrifugal separator capable of discharging sludge directly from a portion of the sludge with least moisture content in a bowl so as to lower a moisture content and increase a separation efficiency, wherein a screw conveyor rotated with a difference in speed provided
6772544 Wheeled work vehicle August 10, 2004
A wheeled work vehicle includes a lower structure (4) supported on the ground by front wheels (2) and rear wheels (3), a swivel base (6) mounted on the lower structure to be swivellable about a swivel shaft disposed between the front wheels and the rear wheels, an operator's seat (7) and
6769860 Tractor with a front loader and a backhoe attachable thereto August 3, 2004
A tractor has a vehicle frame with a pair of right and left elongate frame members spaced from each other and extending in a longitudinal direction and interconnected in intermediate positions by a cross member, an engine supported by the elongate frame members in a front region of the v
6752228 Tractor with a cab June 22, 2004
A tractor with a cab disposed rearwardly of a hood, the cab being mounted on a tractor body (T) including a body forming unit, the cab including a bottom wall defining left and right footrests. The cab has a total length larger than a total height thereof. The cab is arranged to have the
6729431 Tractor with implement mounting frame May 4, 2004
A frame type tractor having an engine mounted in a front region of a main frame extending longitudinally of a tractor body, and a transmission case mounted in a rear region of the main frame. A backhoe mounting frame is attached to a rear end of the main frame. Rollover protection system
6722464 Working vehicle April 20, 2004
A frameless type working vehicle includes an intermediate vehicle body 5 acting as a body forming member for interconnecting a front vehicle body 3 and a rear vehicle body 4. The intermediate vehicle body is formed of a case block 10 housing a hydrostatic stepless transmission (HST) 20.
6720679 Interlock circuit for a working vehicle April 13, 2004
An interlock circuit for a working vehicle having a vehicle body, a working implement attached to the vehicle body, a clutch mechanism for connecting and disconnecting power to the working implement, and a shifting device for determining a traveling direction of the vehicle body. The int
6711839 Tractor with a working implement March 30, 2004
A tractor includes a tractor body (2), a driver's seat disposed on the tractor body, a working implement attached to a rear end of the tractor body, a tractor control station disposed forwardly of the driver's seat, an implement control station disposed rearwardly of the driver's seat, a
6708805 Riding tractor for supporting a mower unit March 23, 2004
A riding tractor in which engine output is transmitted to a running device through a hydrostatic stepless transmission. The tractor has a braking device for acting on the running device, a first brake operating device and a second brake operating device operable independently of each oth
6692409 Hydraulic change speed system for a working vehicle February 17, 2004
A hydraulic change speed system for a working vehicle includes a gear type change speed device shiftable by an actuator, a hydraulic clutch connected to a power transmission line including the gear type change speed device, a valve unit for switching operative states of the hydraulic clu
6684537 Excavator with a piping structure for absorbing variations in hose length February 3, 2004
An excavator such as a backhoe has a group of hoses variable in length when a boom moves up and down. To avoid the group of hoses bulging to obstruct view when the boom is raised to an uppermost position, the group of hoses has a length absorbing portion disposed in a swivel base instead
6675925 Working vehicle January 13, 2004
A steering apparatus for a working vehicle is provided which is capable of steering dirigible wheels by increased steering angles while checking sideways sliding of the wheels on the ground. For this purpose, a pair of right and left intermediate cases are supported by right and left whe
6675567 Lawn tractor with jack-up mechanism January 13, 2004
A mid-mount type lawn tractor having idle wheels disposed at one end in a fore and aft direction of a vehicle body, drive wheels disposed at the other end in the fore and aft direction of the vehicle body, a mower unit connected to the vehicle body between the idle wheels and drive wheel
6672043 Lawn mower for directing grass clippings to a grass catcher January 6, 2004
A lawn mower for directing grass clippings to a grass catcher. The lawn mower includes a vehicle body and a mower unit supported by the vehicle body to be vertically movable for varying a height thereof above the ground. The mower unit includes a housing, cutting blades rotatable about
6659209 Tractor December 9, 2003
A tractor having a mid-mount type mower includes a pair of frames extending in a fore and aft direction, and a transmission case extending and supported between the pair of frames. The transmission case houses a power take off clutch disposed above a rear wheel differential. A change spe
6615942 Swivel type working vehicle September 9, 2003
A swivel type working vehicle having a turntable (3) with a rear hood (28) covering an engine (11) and a side hood (42) covering hydraulic equipment. The rear hood (28) includes a pivot device (30) disposed in an upper front end region thereof and having a pivot axis extending transverse
6575124 Cylinder block of multi-cylinder engine and process of molding same June 10, 2003
A cylinder block for multi-cylinder engine includes a cooling water passage provided at a head-side portion of a cast metal inter-bore wall. The cooling water passage includes a plurality of vertically adjoining transverse water passages provided in vertical and multiple stages. A co
6554542 Stress transmission device, and structure and method of constructing the same April 29, 2003
A stress transmission device arranged between a pile head of a foundation pile and an upper structural portion for transmitting stress between the foundation pile and the upper structural portion, to a structure which employs such a stress transmission device, and to a method of construc
6406800 Bent pipe for passing therethrough a material containing solids June 18, 2002
A bent pipe for use in piping arrangement for transporting materials conaining solids, the bent pipe being prepared by subjecting to high-frequency bending work a straight blank pipe prepared by centrifugal casting and having a plurality of layers. The straight blank pipe comprises a
6368423 Process for producing amorphous magnetically soft body April 9, 2002
The invention improves the thermal conductivity of the material powder to be fired and also makes it possible to produce an amorphous magnetically soft body within a shortened period of time. The amorphous magnetically soft body is produced by preforming the material powder into a body f
6354282 Fuel limitation device for engine with supercharger March 12, 2002
A fuel meter (21) of a fuel injection pump is made movable for fuel metering through a governor lever (14). A swing lever (31) has a power input point (J) which engages with a boost actuator (26). If the boost actuator (26) operates in response to a delayed rise of a supercharged pre
6344094 Ferritic-austenitic two-phase stainless steel February 5, 2002
A ferritic-austenitic two-phase stainless steel consisting essentially of, in wt. %, over 0% to not more than 0.05% of C, 0.1 to 2.0% of Si, 0.1 to 2.0 of Mn, 20.0 to 23.0% of Cr, 3.0 to 3.9% of Ni, 0.5 to 1.4% of Mo, over 0% to not more than 2.0% of Cu and 0.05 to 0.2% of N, the steel f
6318530 Pressure control apparatus and method for controlling a hydraulic clutch device November 20, 2001
A pressure control apparatus and method are provided for controlling hydraulic clutches of a backward and forward drive switching device mounted in a transmission of a working vehicle such as a tractor. When a backward and forward drive switching shuttle lever is operated, a current
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