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| Number | Title | Issue Date |
| 7475528 | Machine for removing vegetation A lawncare machine 100 has a powered rotary raking or scarifying reel 5 together with a powered vacuum collector 8 whereby material thrown up by the reel is immediately drawn into the collection chamber 8. During removal of the vegetation... | 01/13/2009 |
| 7347293 | Work vehicle A working vehicle such as a mobile agricultural machine is designed such that it has an improved working efficiency if any spinning turn is not required, and has an improved running property in a wet farm. The vehicle has a pair of right and left crawlers (2)... | 03/25/2008 |
| 7324882 | System and method to detect a failed shear bolt supporting a concave of an agricultural combine A system and method for detecting existence of a failed or broken shear bolt supporting all or a portion of a concave of a threshing system of an agricultural combine and utilizing information relating to rates of movement and absence of movement of a concave to det... | 01/29/2008 |
| 7263818 | Apparatus for controlling self-propelled machines Apparatuses are provided for controlling a self-propelled machine wherein the apparatuses include a handle and a control device and can utilize first and second linking members. The control device is pivotably coupled to the handle, and includes a slidable control p... | 09/04/2007 |
| 7255193 | Speed equalizing linkage design for dual hydrostatic transmissions An HST propel system includes first and second pumps having displacements variable in response to movement of first (31) and second (33) control shafts, respectively; and a linkage arrangement for moving the control shafts in unison in response to move... | 08/14/2007 |
| 7213662 | Mower with lever actuated drive control A mower includes an engine-driven transmission for driving a pair of wheels at rate that varies according to the position of a transmission setting control selected by an operator. The transmission setting control positions a member that has a stop surface proximate... | 05/08/2007 |
| 7201245 | Control for a hydrostatic power train A hydrostatic power train includes a hydraulic pump, which is connected, via a first main pipe and a second main pipe, to a first hydromotor unit driving a front axle and to a second hydromotor unit driving a rear axle. The first and second hydromotor units can be a... | 04/10/2007 |
| 7146787 | Walk behind mower Disclosed is a self propelled walk behind mower comprised of a tractor unit and a mowing deck. The tractor unit is hydrostatically driven with a unique control system whereby the forward speed of the tractor is set by operating an electric rocker switch with an oper... | 12/12/2006 |
| 7140622 | Movie camera skate dolly An omni-directional, octagonal shaped, camera skate dolly that includes a platform having a generally planar upper surface, a lower surface and a plurality of side surfaces, and a plurality of wheel assemblies attached to the lower surface of the platform, wherein e... | 11/28/2006 |
| 7063177 | Walk behind mower A walk behind mower includes an engine-driven transmission for driving a pair of wheels at rate that varies according to the position of a transmission setting control selected by an operator. The transmission setting control positions a member that has a stop surfa... | 06/20/2006 |
| 7011182 | Axle driving apparatus A housing cannot be made compact by only securing a space corresponding to a reservoir tank at the upper part of the housing, and the space at the upper part of the housing cannot be utilized if the reservoir tank is integrally provided to the upper part of the hous... | 03/14/2006 |
| 6951091 | Riding lawn mower A rear-engine type riding lawn tractor having a frame, an engine carried on the frame, a cutting mower driven the engine, a seat set on the frame, a caster wheel supported on the front frame, a pair of drive wheels supported on the rear frame, axles connected with t... | 10/04/2005 |
| 6935446 | Walk behind mower A self propelled walk behind mower including a tractor unit and a mowing deck. The tractor unit is hydrostatically driven with a unique control system whereby the forward speed of the tractor is set by operating an electric rocker switch with an operator's thumb. Ha... | 08/30/2005 |
| 6796392 | Walk-behind, self-propelled working machine A working machine has an operation switching lever mounted on a handle in the vicinity of a handle grip and is arranged to be manipulated by one of the hands of the operator to transmit or interrupt a driving force outputted from the drive source to the working tool... | 09/28/2004 |
| 6773367 | Belt drive two speed shift mechanism A two speed shift mechanism for a belt drive that includes a rotatable shaft with a first pulley, and a tube concentric with the shaft and rotatable therearound. The tube includes a shift hub supporting a second pulley in axially spaced relation to the first pulley ... | 08/10/2004 |
| 6734647 | Working machine Control section determines necessary acceleration of a transporting section in accordance with an actual transporting speed, and also determines a correction coefficient corresponding to the number of rotations of an engine from among correction coefficients having ... | 05/11/2004 |
| 6726560 | Dual power path drive for a rotating threshing rotor of an agricultural combine and method for re-engaging the same A dual power path drive for rotatably driving a threshing rotor of an agricultural combine. The drive includes a planetary gear arrangement having an output connected to the rotor for rotation therewith, a rotatable input connected in rotatably driven relation to a ... | 04/27/2004 |
| 6699147 | Mower with dual mechanical transmissions A vegetation mower incorporating a drive train using two mechanical transmissions to selectively drive the ground engaging wheels at different speeds. The drive train incorporates a single pulley belt to transfer power from the mower engine to the drive w... | 03/02/2004 |
| 6666007 | Hydro-mechanical variable speed feeder/header drive for an agricultural combine A variable speed, reversible drive for rotating elements of a feeder and a header of an agricultural combine including a first rotatable power input, a second rotatable power input, and a planetary gear arrangement or set including a first rotatable input... | 12/23/2003 |
| 6494025 | Device for remotely controlling a hydraulic system on a detachable implement A hydraulic system for a detachable implement such as draper platform for a combine utilizes a platform-mounted pump supplied with return oil from the existing reel drive motor. The system utilizes the existing combine hydraulic connection for the reel dr... | 12/17/2002 |
| 6167685 | Windrower header speed control A system for controlling the header speed of a windrower to a set point includes a variable displacement pump producing a variable outflow of hydraulic fluid for driving the header via two hydraulic motors, the system being characterized in that the pump ... | 01/02/2001 |
| 6155033 | Self-propelled power tool control device A large capacity, self-propelled walk-behind power tool, such as a lawn mower, employs gear-operated transmissions for independently driving each drive wheel. The transmission output shafts connect directly with the drive wheels, and clutch elements for u... | 12/05/2000 |
| 6098385 | Drive control for self-propelled power tool A large capacity, self-propelled walk-behind power tool, such as a lawn mower, employs gear-operated transmissions for independently driving each drive wheel. Control handles are connected to idler pulley levers and brake levers to control the movement of... | 08/08/2000 |
| 6089005 | Combined tow and pressure relief valve for a hydraulically self-propelled lawn mower A combination tow and pressure relief valve for use in a hydraulic fluid circuit used in a hydraulically driven wide area lawn mower. The valve includes a cylindrical valve body having a hexagonal head. A slideable valve tip with a shank and a valve head ... | 07/18/2000 |
| 6082083 | Ground speed control system A handle for an outdoor power equipment unit, such as a lawn mower, includes a control system for allowing the user to manually vary the ground speed of the mower provided by a self propel system. The control system includes a handle grip on the handle th... | 07/04/2000 |
| 5913802 | Single lever drivewheel steering power lawn mower The invention is a self-propelled drivewheel steering power mower which can be operated in a standing or sitting position, including a pair of variable flow hydrostatic pumps with tiltable swash plates, each of which drives one of a pair of drivewheels. A... | 06/22/1999 |
| 5911672 | Vacuum actuated control mechanism A riding lawn mower is provided that has an engine, a device that requires control and a vacuum actuated control mechanism for controlling the device. The vacuum actuated control mechanism includes a vacuum actuator having first and second chambers separa... | 06/15/1999 |
| 5699656 | Agricultural combine A tracked agricultural combine vehicle for harvesting, hulling and sorting grain includes a grain working section driven via a tension roller clutch controlled power transmission belt and further including integrated control means for left and right side ... | 12/23/1997 |
| 5518079 | Lawn mower To control the speed of a lawn mower, the speed of the lawn mower is changed in a forward direction along a longitudinal plane, resulting in a tendency to turn because of different speed characteristics of the right and left wheel drives. The speed is cor... | 05/21/1996 |
| 5502957 | Electric lawn mower with intelligent control There is disclosed an electric mower, preferably of the riding type, in which microcontrollers are interposed between quadrature controllers and motors operating each of the drive wheels. The microcontrollers are programmed to provide pulse width modulate... | 04/02/1996 |
| 5375674 | Operator control for lawn and garden vehicles A control for a lawn and garden vehicle, such control utilizing a "U" shaped main direction control pivotally mounted to the handlebars. The control being physically interconnected to a transmission such that movement of the direction control forward caus... | 12/27/1994 |
| 5355661 | Lawn mower having a steering handle switchable between a walking mode and a riding mode A lawn mower for use in a walking mode and a riding mode. Drive of an engine is transmitted in varied speeds to rear drive wheels through stepless transmissions. The transmissions are controllable a first shift member accessible to a driver walking behind... | 10/18/1994 |
| 5353578 | Drive system for lawn mowers A lawn mower is provided with a speed control mechanism which is controlled by a single cable. A return spring, floating power transfer shaft, and biasing assembly provide a speed control mechanism which is effective in design and operation.... | 10/11/1994 |
| 5307612 | Lawn mower having a steering handle switchable between a walking mode and a riding mode A lawn mower for use in a walking mode and a riding mode, having a chassis frame, an engine mounted on a rearward position of the chassis frame, front wheels, driven rear wheels, transmissions for transmitting drive from the engine to the rear wheels afte... | 05/03/1994 |
| 5247784 | Transmission system capable of driving right and left drive wheels at different speeds A walking operator type lawn mower having stepless transmissions allocated to right and left rear wheels for changing speed of engine drive and outputting the drive to the right and left rear wheels, respectively, whereby the right and left rear wheels ma... | 09/28/1993 |
| 5138825 | Riding mower having a pedal operated height adjustment mechanism, air assisted discharge, and improved hydrostatic shift linkage A riding mower is provided having a generally conventional engine, seat, frame, cutting deck and hydrostatic transmission. The cutting deck may be vertically adjusted for a plurality of cutting height settings, and may be locked in its uppermost setting a... | 08/18/1992 |
| 5127215 | Dual hydrostatic drive walk-behind mower An extra-wide self-propelled lawn mower employs twin hydrostatic transmissions to power the left and right rear drive wheels that are situated behind a forward moving deck. Hydrostatic drives have infinitely variable adjustment speed from reverse through ... | 07/07/1992 |
| 5077959 | Dual hydrostatic drive walk-behind mower An extra-wide self-propelled lawn mower employs twin hydrostatic transmissions to power left and right drive wheels situated behind a forward mowing deck. There are left and right primary speed control levers adjacent hand grips on the mower hand assembly... | 01/07/1992 |
| 5062257 | Mowing apparatus A grass mowing or cutting machine suitable for towing by general application vehicles is disclosed. The machine is operated by its advance and comprises a wheeled frame having a horizontal cutting disc which rotates about a vertical axis. A drive mechanis... | 11/05/1991 |
| 5052135 | Convertible grass cutting and snow blowing machine having a cylindrical rotor A convertible grass cutting and snow blowing machine which is supported on wheels and displaced on a surface where grass is to be cut or snow removed by a user controlling the machine from a handlebar. An engine is connected to the rotor housing which ser... | 10/01/1991 |
