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| Number | Title | Issue Date |
| 7197864 | Transport arrangement for an agricultural machine having a detachable front attachment An agricultural machine, such as a self-propelled harvester, includes an attachment that is removably mounted to the machine. A transport device is adapted to be removably mounted onto the attachment to support the attachment during road transport of the machine. A ... | 04/03/2007 |
| 7188680 | Hydraulically adjustable hinged hitch An agricultural implement includes a pivoting assembly, a working assembly, and a tow bar assembly. The working assembly includes a front gang of coulters and a rear gang of coulters. The pivoting assembly includes a hydraulic cylinder. The hydraulic cylinder is adj... | 03/13/2007 |
| 7063167 | Self leveling towed implement An implement has a tongue used to tow the implement that can be raised or lowered with respect to the rest of the implement. The tongue is raised or lowered by a hydraulic cylinder. The raising and lowering ports of the cylinder are connected to two hydraulic accumu... | 06/20/2006 |
| 6125775 | System for gauge wheel load adjustment A system for ensuring the uniform height of gauge wheels for a towed implement assembly such as a seeder. The seeder has a frame structure with a series of front gauge wheels suspended by the front of the frame structure. A greater number of rear wheels a... | 10/03/2000 |
| 6035943 | Frame leveling system for tillage implements An agricultural implement provides improvements in ground-working implements having both a lowered ground-working mode and a raised transport mode wherein structure is provided to offset the effects of the moment forces created in the working mode. A flui... | 03/14/2000 |
| 5992535 | Dual acting implement leveling system with transport stabilization A dual action leveling system for a disk or similar implement connected between the hitch and the lift wheel assembly includes a transport stop for providing a fixed hitch position for good transport leveling and stability. The system includes a fore-and-... | 11/30/1999 |
| 5855245 | Disk opener carrier hitch A floating hitch for an agricultural implement has a hydraulic ram arranged for locking the implement in a raised position relative to the hitch, for transport. For transport, the ram extends into abutment with a point on the implement, and retracts out o... | 01/05/1999 |
| 5409069 | Tillage implement with gauge wheel linked to wing lifting and self-leveling mechanism An agricultural tillage implement includes a center frame portion connected to one or more hinged wing frame portions. Both the center portion and the wing portions include separate hydraulically actuated lifting and self-leveling mechanisms. In each wing... | 04/25/1995 |
| 5366336 | Leveling rod assembly coupled between towed implement hitch and ground wheel axle A towed rotary cutter has a main frame defined by the cutter housing supported at its rear by ground wheels that are coupled to the frame through means of a pivotably mounted axle. A hitch is pivotally mounted at the front end of the frame and carries a c... | 11/22/1994 |
| 5348101 | Hydraulic system for a towed implement A hydraulic rockshaft control circuit which includes a three-way valve that normally operates the rockshaft is connected to the lift cylinder on a trailing implement. A hitch lock valve connected to the rockshaft control valve maintains the rockshaft in a... | 09/20/1994 |
| 5289880 | Towable road tender A towable road tender device for grading unpaved roadway surfaces. The tender device may be hitched to commercial vehicles but is particularly suited for use with private vehicles, such as small tractors and pickup trucks. A set of relatively lightweight ... | 03/01/1994 |
| 5156216 | Conservation compliance tillage tool A conservation tillage tool including a frame disposed to support a number of soil working implements in sequence. The frame is supported by ground wheels attached to the rear section of the frame. The wheels are movable with respect to the rear section o... | 10/20/1992 |
| 5152347 | Interface system for a towed implement A towed implement with an implement cylinder may be coupled to the hitch of a tractor which includes a hydraulic pump, a hydraulic sump, a rockshaft cylinder for raising and lowering the hitch, a hitch control valve for controlling fluid flow to the rocks... | 10/06/1992 |
| 4932476 | Leveling position indicator A level indicator for a disk harrow or the like having a motorized on-the-go leveling adjustment. A small diameter flexible cable is attached to the spring retainer which bears against one end of the coil spring on an adjustable link structure located bet... | 06/12/1990 |
| 4896730 | Apparatus for cultivating rice and other crops An apparatus which can cultivate rice and other crops, comprising a frame having a plurality of transversely extending spaced cultivator bars, each of the bars having a plurality of spaced elongated soil working members extending generally vertically down... | 01/30/1990 |
| 4817730 | Hydraulic weight transfer system for an implement with a lift assist wheel An improved hydraulic circuit for raising and lowering a three-point hitch-mounted implement having a lift assist assembly and for selectively lowering the lower draft links of the three-point hitch to transfer implement weight to the rear wheels of the t... | 04/04/1989 |
| 4809786 | Remotely adjustable disk leveling system Adjustable link structure for providing on-to-go disk harrow adjustment from the cab of the towing vehicle. The mechanism for automatically maintaining the frame of a disk harrow at a level condition as the frame is raised and lowered relative to the grou... | 03/07/1989 |
| 4712622 | Self-leveling agricultural implement A self-leveling agricultural implement is disclosed which has been particularly configured for maintaining the frame of the implement in a level disposition as it is raised and lowered by relative movement of its hydraulically-operated supporting wheels. ... | 12/15/1987 |
| 4681335 | Center pivot hitch assembly A novel center pivot hitch assembly mechanism is disclosed. The mechanism of the present invention is preferably carried by a wheeled tool bar and a wheeled agricultural implement. The wheeled agricultural implement or cart is typically moved along a path... | 07/21/1987 |
| 4614240 | Multi-blade soil handling apparatus A multi-blade soil handling unit comprising a frame having rearward and forward ends with a pivotal hitch mounted on the forward end of the frame for connection to a prime mover. A transversely extending axle is mounted on the frame and is provided with a... | 09/30/1986 |
| 4606413 | Hydraulic leveler arrangement An agricultural implement frame supported on rockshaft mounted tires and having a rigidly mounted tongue employs a hydraulic leveler arrangement to maintain the level or pitch of the frame in the raised transport position and the lowered ground working po... | 08/19/1986 |
| 4572087 | Fertilizer injection apparatus A fertilizer injection apparatus having hollow, ground-piercing knives connected by tubes to a hopper with a fertilizer delivery system. A tool bar is connected to the hopper by rigid links pivoted to the tool bar at one end about the single axle of the h... | 02/25/1986 |
| 4492272 | Tillage implement and improved gang assembly therefor A mulch tiller or similar implement having a rigid frame supporting a plurality of forward trash-sizing gang assemblies and rearward plow tools. Spring brackets rockably support the gang asemblies for independent vertical movement with respect to the fram... | 01/08/1985 |
| 4450917 | Self-leveling arrangement for agricultural implement frame A leveling arrangement for an agricultural implement frame having a draft tongue which is pivotally attached to a front end of the frame includes a rocker arm attached to the frame front end for pivoting about a transverse axis, a transfer link pivotally ... | 05/29/1984 |
| 4434857 | Tractor and implement coupled thereto with hydraulic lift system including phasing valve In combination, a tractor having at its rear end an implement hitch and a lift system and an implement coupled at one end to the hitch and having at its other end a height adjusting system for controlling the working depth of the implement. The lift inclu... | 03/06/1984 |
| 4428435 | Agricultural implement with hitch control A tractor-drawn agricultural implement of the type that requires a floating hitch member while operating but a rigid hitch member while in transport. This is achieved according to the present invention by linkage connected between a hitch member control m... | 01/31/1984 |
| 4425971 | Folding agricultural implement A folding implement frame is disclosed which has wheels placed amid the tools on the frame so that variations in ground level will not alter cultivation depth. A novel method of folding is described which will enable the wheels to be used for transport. A... | 01/17/1984 |
| 4410047 | Tractor-drawn plow with hitch and furrow wheel hydraulic motors connected in series A tractor-drawn plow is carried at its left front end on a tractor via vertically shiftable hitch means and at its right front end on a furrow wheel linkage means providing for raising and lowering of the frame among transport, open-up plowing and normal ... | 10/18/1983 |
| 4379491 | Leveling system for a wheeled implement A leveling system for a wheeled implement wherein the implement includes a frame with ground-engaging tools, a forwardly extending hitch structure, support wheels mounted to the frame, and wheel lift cylinders attached between the frame and the support wh... | 04/12/1983 |
| 4373591 | Implement and last motion hitch locking mechanism therefor A hitch locking mechanism for an implement or the like having a frame and transport wheels movable between lowered transport positions wherein the frame is raised for transport and raised positions wherein the frame is lowered for an operating mode, and h... | 02/15/1983 |
| 4326594 | Raising and lowering mechanism for farm implement A tractor-drawn farm implement is carried at its front end on a tractor drawbar and at its rear end by trailing wheel means, and linkage of the so-called four-bar type is operative to selectively raise and lower the implement. The body of the implement se... | 04/27/1982 |
| 4308920 | Ground working implement wherein forward frame portion raised before frame support engages ground A ground working implement including a frame having a plurality of rows of elements, each element holding a plurality of individual ground working tools extending downwardly. The implement comprises wheels which are used for transporting the ground workin... | 01/05/1982 |
| 4300640 | Agricultural implement having field and transport modes A tandem offset disc implement comprising a frame on wheels, a tongue pivoted at the forward end of the frame for hitching the disc to a tractor, the frame being movable up and down, forward and rearward gangs of discs on opposite sides of the frame swing... | 11/17/1981 |
| 4211288 | Raisable implement frame with operably connected wheel and draft frames A foldable implement construction includes an implement tool carrying center frame pivotally connected to a draft frame and is provided with a pair of transversely extending outrigger tool sections connected on respective opposite sides of the center fram... | 07/08/1980 |
| 4207951 | Two-way, multiple bottom plow with lift assist An improved two-way, multiple bottom plow is described. The plow is provided with an hydraulically actuated lift assist mechanism which works in conjunction with the tractor hitch to lift the plow out of the plowing position. A hydraulic system is provide... | 06/17/1980 |
| 4193458 | Tractor and implement and hydraulic system therefor A hydraulic system is provided for an integrally-mounted agricultural implement which permits control of the tractor three-point hitch rockshaft cylinder, upper draft link hydraulic cylinder and lift assist hydraulic cylinder through a single valve contro... | 03/18/1980 |
| 4175496 | Earth working implement An earth working implement is disclosed for installing plastic netting under seeded earth for the growth of grass sod. The implement may be drawn by a tractor and is configured to continuously lay netting on the ground and automatically cover the netting ... | 11/27/1979 |
| 4157735 | Endwise transport structure for drills A plurality of grain drills are coupled together in end-to-end relation for towing behind a tractor for operation and alternately in an endwise direction for transport. Each drill is supported in field operation by a forward caster wheel and a plurality o... | 06/12/1979 |
| 4150724 | Rotary stalk chopper apparatus A tongue drawn rotary apparatus for chopping vegetation and for churning and working the soil, including individually supported shredder reels mounted on a frame, which frame may be lowered and raised in response to a wheel retraction and extension rocker... | 04/24/1979 |
| 4121852 | Releasably retained hinged plow A moldboard plow that is made in two sections which are hinged together about a horizontal pivot axis, so that the rear section of the plow can pivot about this horizontal axis relative to the front section to permit the plow to follow ground contours. Su... | 10/24/1978 |
