Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7971416 | Mounting hydraulic motor on mower deck A mounting assembly to mount the base of a hydraulic motor on a mower deck includes a cast iron mounting plate having stiffening structures around the perimeter and spanning the perimeter, and rubber isolators between the mounting plate and the mower deck. ... | 07/05/2011 |
| 7908833 | Mower frame with compact mounting for dual hydraulic pump/motor assemblies A mower has a frame that supports a rotary cutting deck. The frame includes a pair of side rails that each extend from a front end in advance of the cutting deck to a rear end substantially behind the cutting deck. The front ends of the side rails support a pair of ... | 03/22/2011 |
| 7908832 | Agricultural machine, especially a field chopper An agricultural machine, especially a field chopper, has a carrier vehicle (28) with an intake unit (18) mounted on and arranged to the carrier vehicle (28). The intake unit has an intake gearbox (19) and at least one feed roller (21, ... | 03/22/2011 |
| 7730701 | Variable speed hydraulic conditioner drive A hydraulic driver for powering the conditioner mechanism on an agricultural mower-conditioner, the hydraulic driver being powered by the same hydraulic power circuit that powers the cutting mechanism, but which includes controls for varying the speed and/or directi... | 06/08/2010 |
| 7726107 | Hydraulic system for a self-propelled harvesting machine A hydraulic system for an agricultural working machine composed of a carrier vehicle and at least one adapting device has one or more hydraulically driven consumer included in each of the carrier vehicle and the at least one adapting device, and a common hydraulic p... | 06/01/2010 |
| 7690176 | Rotary cutter device with integrated cooling system A hydraulic cutter device incorporates a rotatable base including a plurality of spaced cutter teeth. A protective shield covers at least a portion of the base. A fluid cooler is located adjacent the protective shield, and defines a window for movement of ambient ai... | 04/06/2010 |
| 7644564 | Electric modular pruning and/or topping machine A modular pruning machine used in agriculture, viticulture, fruit growing, tree growing or for brush clearing has at least one cutter bar. The cutter bar has cutting modules affixed thereto. Each of the cutting modules has a rotary cutting tool and a three-phase asy... | 01/12/2010 |
| 7621112 | Forestry machine with hydraulic system and method for rotor braking Embodiments relate to braking high-speed rotational cutting equipment. In particular, some embodiments relate to forestry machinery having a cutting or mower apparatus, and further having a hydraulic brake. The brake includes a counterbalance valve which pressurizes... | 11/24/2009 |
| 7596934 | Lawn mower with belt drive system A self-propelled lawn mower includes at least one cutting blade, at least first and second drive wheels, and hydro pumps for controlling the drive wheels. At least first and second belts are used to drive the pumps and blade(s) of the cutter deck, respectively. In c... | 10/06/2009 |
| 7578116 | Battery-operated riding rotary mower A riding lawnmower with a chassis having a rear portion with two rear wheels, and a cutting blade deck having one or more rotary blades. Batteries are positioned in a U-shaped array around the right side, left side, and rear end of the chassis, above and near the re... | 08/25/2009 |
| 7540132 | Electric working machine In an electric working machine, a scroll portion is provided at one of left and right sides of a machine body, and a relay member functioning as a power switch in which a power on/off key is removably inserted is provided at the other side of the machine body. The r... | 06/02/2009 |
| 7540133 | Hydraulic hose support for agricultural implements An agricultural implement is provided that includes a wheeled frame and a draft tongue pivotally connected to and extending forwardly from the frame to connect with the tractor. A hydraulic cylinder controls the pivotal movement of the draft tongue relative to the f... | 06/02/2009 |
| 7497069 | Crop harvesting header with reversible drive to the sickle knife A crop harvesting header includes a sickle knife driven by a first hydraulic motor and a crop transfer system including three conveying drapers which is driven by at least one second hydraulic motor. A mechanical drive input from the combine harvester drives a first... | 03/03/2009 |
| 7467505 | Crop harvesting header with drive reversal A crop harvesting machine including a header mounted on a tractor is hydraulically driven by a pair of pumps on the tractor and a series of motors on the header. A first circuit control includes variable rate valves controlling the rate of supply of fluid from the u... | 12/23/2008 |
| 7363754 | Mowing machine A control system for a trimmer head assembly includes a first arm including a first mowing device, a first cylinder connected to the first arm, a source of fluid in selective communication with the first cylinder via a fluid line, and an accumulator in selective com... | 04/29/2008 |
| 7350344 | Lawnmower rotary cutting apparatus and grass guide A lawnmower consisting essentially of a rotary cutting apparatus comprising a plurality of small blades and a grass guide for bending and constraining the grass for ease of cutting. The grass guide is mounted substantially parallel to the drive shafts which extend b... | 04/01/2008 |
| 7350350 | Exhaust gas purifying apparatus In an exhaust gas purifying apparatus for a diesel engine having a diesel particulate filter (DPF) provided in an exhaust pipe, a temperature of the DPF is indirectly detected (presumed) to prevent an over-heat of the DPF during a re-generation operation thereof. Fo... | 04/01/2008 |
| 7347277 | Self contained transport for crop harvesting header A transport system for a crop header includes a first and a second wheel arrangement on the header frame adjacent a respective ends for acting as a stabilizer when the header is in the operating position and movable to a transport position for transporting the heade... | 03/25/2008 |
| 7334645 | Articulated power transfer apparatus A hitch apparatus for connection between a tractor and a trailing implement such as a cutter includes a hitch arm at one end of the apparatus extending forwardly and pivotal so as to extend either inwardly or outwardly thus offsetting the apparatus across the rear o... | 02/26/2008 |
| 7332889 | Battery charger A battery charger. The battery charger includes a housing having an outer surface, a battery being supportable on the outer surface, a charging circuit supported by the housing and electrically connectable to a power source and the battery, and a protective structur... | 02/19/2008 |
| 7328563 | Walk reel mower with electric reel and traction drives A walk reel mower has a front mounted reel cutting unit and a rear handle. The operator pushes the handle towards the ground to lift the reel cutting unit off the ground prior to turning the walk reel mower around. When this occurs, the manner in which the reel cutt... | 02/12/2008 |
| 7323841 | Method and apparatus for detecting multiple overcurrent thresholds using a single comparator device A method and an apparatus that permit the detection of multiple overcurrent thresholds, providing system protection particularly but not exclusively in brushless DC motor drive systems, but using only one comparator device instead of multiple comparator devices. The... | 01/29/2008 |
| 7322176 | Flexible sound barrier curtain for grass collection container A grass collection container for a grass mowing machine includes a bag or hopper attached to a support frame under the plastic top cover with air permeable panels, and a flexible sound barrier curtain attached to the support frame over the air permeable panels. The ... | 01/29/2008 |
| 7318312 | Adjustable hay rake A carted hay rake is disclosed for raking cut crops into a windrow. The hay rake can include a wheeled cart, rake arms, and tine rake wheels. The rake arms are attached to a rake arm pivot, and can be extendable to a horizontal working position and retractable to a ... | 01/15/2008 |
| 7313902 | Folding deck mechanism A lawn mowing machine having a mower deck with pivoting side wing sections. The pivoting side wing sections can be pivoted upward relative to the main deck housing. When the side wing sections are raised, the mowing machine is presented with a more narrow profile to... | 01/01/2008 |
| 7311184 | Clutch/brake assembly with electrical generation system A clutch assembly includes a rotatable input shaft, a clutch housing fixed relative to the input shaft, an input disk coupled to with the input shaft and rotatable therewith, and an output disk axially movable relative to the clutch housing to selectively engage the... | 12/25/2007 |
| 7309070 | Operation arm and hand cart comprising operation arm An operation arm built on one side or a plurality of sides of a hand cart provided with a wheel, includes an operation section touched by an operator, and a support extending from the operation section to the hand cart, and supporting the operation section against t... | 12/18/2007 |
| 7305811 | Side mower deck for a mower tractor A side-mount mowing attachment for a riding mower or yard tractor is removably secured to the riding mower by single hinge pin, allowing the side-mount mowing attachment to articulate and follow the ground contour independently from the primary mowing deck of the ri... | 12/11/2007 |
| 7305778 | Self-propelled working machine A self-propelled working machine has a pair of transporting parts, a working part, an engine for driving at least the working part, and a main switch for turning the engine on and off. A locomotion preparation switch produces a command for moving the transporting pa... | 12/11/2007 |
| 7299897 | Hydraulic platform lift incorporating positive displacement valve, and positive displacement valve for hydraulic platform lift A hydraulic platform lift, having hydraulic pump means and first and second hydraulic cylinders each having a piston member therein, each operatively coupled to a respective side edge of a platform to permit raising and lowering of the platform. A positive displacem... | 11/27/2007 |
| 7287363 | Riding mower having multiple cutting units A riding mower has multiple cutting units visible to the operator when mowing, and easily accessible for service and maintenance work. The riding mower chassis has a front end, a rear end, a left rail, a right rail, a pair of front wheels mounted at the front end, a... | 10/30/2007 |
| 7240771 | Mast staging hydraulic circuit A multistage mast assembly for use on a lift truck and method of operation for staging first and second mast sections of the multistage mast assembly. Each mast section has a retracted position and an extended position. The apparatus includes a mast staging hydrauli... | 07/10/2007 |
| 7228679 | Electrical method of sensing operator presence on a walk-behind mower An operator presence control assembly for a walk-behind greens mower includes a handle supported on a frame of the walk-behind greens mower, a ribbon switch on the outer perimeter of the handle, and a circuit including the ribbon switch. The circuit is completed by ... | 06/12/2007 |
| 7227273 | High frequency bus method Certain exemplary embodiments can include a system comprising an electric drive system for a machine. The system can include a rectifier adapted to convert AC power from an alternator to DC power. The system can include an inverter adapted to receive DC power from t... | 06/05/2007 |
| 7198295 | Retainer arrangement connecting operating unit to a vehicle A retaining arrangement, including a support arm is proposed, by means of which an operating unit is connected with a vehicle. The retaining arrangement includes a safety device which operates such that, as long as a predetermined condition is not fulfilled, the con... | 04/03/2007 |
| 7196430 | Partial-powered series hybrid driving system A Partial-Powered Series Hybrid Driving System enables an engine to run with high power and high speed for normal or high load driving. If the load is driven under low-power, low-speed light loading conditions, the present system operates in a series hybrid driving ... | 03/27/2007 |
| 7191584 | Walk reel mower A walk reel mower includes a pair of inclined rigid links for mounting the reel cutting unit to the reel mower frame for rolling about a longitudinal axis, and a pair of vertical support arms for mounting the reel cutting unit to the reel mower frame for pitching ab... | 03/20/2007 |
| 7185478 | Automated lawn cutting and vacuum system An automated lawn cutting and vacuum system is disclosed. The system includes an automated lawnmower comprising a mower housing. A control panel provided on the mower housing automatically controls the mowing, driving and steering functions of the automated lawnmowe... | 03/06/2007 |
| 7168227 | Internal combustion engine traction drive with electric cutting unit drive for walking greens mower A walk-behind greens mower having a mobile structure and a ground engaging traction member rotatably coupled to the mobile structure. The ground engaging traction member imparts traction movement to the mobile structure for movement on the ground at a ground speed. ... | 01/30/2007 |
| 7162853 | Lawn mower having HST A lawn mower has driving front wheels and driving rear wheels. The mower includes a mower unit mounted between the front wheels and the rear wheels to be vertically movable, an engine mounted to a front portion of a vehicle body, a transmission case disposed rearwar... | 01/16/2007 |
