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| Number | Title | Issue Date |
| 7793739 | Overload protection device for agricultural appliances Overload protection device for agricultural appliances, such as for example agricultural implements with a joint connecting the agricultural tool to the carrier frame, having two joint parts held together by spring load and mutually supporting, of which one is mount... | 09/14/2010 |
| 6997121 | Minimum tillage agricultural implement having furrow opening shank assemblies An agricultural implement for forming a furrow in a soil, is described and which includes a rotatable shank; a resilient, movement limiting member disposed in force transmitting relation relative to the rotatable shank; and a pair of wheels mounted for earth engagin... | 02/14/2006 |
| 6926093 | Mechanism for mounting a soil leveling device A mechanism for mounting a soil leveling device to the mounting arm of a leveling attachment operates in either a fixed setting or a floating setting. The mechanism includes a rearwardly extending carrier arm which carries the soil leveling device at its distal end.... | 08/09/2005 |
| 6871709 | Strip-till primary tillage system An agricultural tillage implement that employs multiple apparatus to carry out a strip-till farming operation is disclosed. A tillage shank runs a point through the compaction layer to fracture and loosen the soil, forcing it upwardly and outwardly where a pair of a... | 03/29/2005 |
| 6688405 | Simplified adjustable tine harrow assembly A simplified, low component harrow attachment includes several clevis-like mounting castings pivotally connected between two identical flat side sheets. A link which pivots the ranks in unison is pinned to the legs of the mounting castings between the she... | 02/10/2004 |
| 6684961 | Pitch adjustment for a tillage shank assembly A spring trip shank assembly with a fixed downstop includes a pivot area with an eccentric mechanism for varying the location of the shank pivot relative to the downstop so that shank position and tool pitch can be adjusted without need to change downstop... | 02/03/2004 |
| 6119608 | Seed furrow closing and covering disk The planer row unit has a unit frame with a front member that is adapted to be secured to a tool bar. A sub frame is secured to the front member by parallel links. A furrow opener disk, a seed shoe and a gauge wheel are secured to the subframe. A cam plat... | 09/19/2000 |
| 6102132 | Farm land coulter assembly A coulter mounting assembly includes a torsion tube that absorbs upward movement of the coulter while maintaining downward force on the coulter. The torsion tube is mounted on a support beam which depends from a farm implement. A lever arm attaches to the... | 08/15/2000 |
| 6098722 | Versatile implement system A versatile implement system utilizing a single implement structure that is capable of being utilized as a grain planter, row crop planter, tiller or anhydrous applicator. The inventive device includes a conventional implement frame, a bracket, a pair of ... | 08/08/2000 |
| 5787992 | Spring tip shank assembly having quick-dropping trip-out force and improved resetting ability The spring trip assembly has lever mechanism between the shank and the compression spring which causes the trip-out force of the shank to drop sharply once the relatively high, initial trip-out force level has been reached, thus permitting the shank to sl... | 08/04/1998 |
| 5544709 | Down pressure spring adjustment A series of notches are provided in the upright plates on one end of a parallel bar linkage connecting a cultivator rig or planter assembly to a tool bar. Coil springs are tensioned between the opposite end of the linkage and a rod and trunnion assembly t... | 08/13/1996 |
| 5461995 | Rotary row cleaner with reversible spring A planter includes a pair of toothed wheels which sweep mulch away from the path followed by furrow opening discs. The sweeper wheels are carried on the trailing end of a parallel bar linkage attached to a tool bar by which the planter is pulled. As a res... | 10/31/1995 |
| 5443126 | Grubber tine The invention relates to a grubber tine of a tubular cross-section which, as compared to known grubber tines, give reduced weight and larger flexure and vibrations when moved through the soil, which gives reduced tractive power. The grubber tine is adapte... | 08/22/1995 |
| 5437113 | Snow plow trip cutting edge A plow blade assembly including a moldboard, displaceable trip cutting edge connected to the moldboard, a moldboard receiving surface attached to the backside of the moldboard, a trip cutting edge contact surface attached to the backside of the trip blade... | 08/01/1995 |
| 5351635 | Agricultural seeder A seeding system includes a frame mounted on ground wheels for moving across the ground together with a plurality of individually mounted seeding elements carried on parallelogram linkages from the frame. A seeding element includes a walking beam arrangem... | 10/04/1994 |
| 5323862 | Moldboard plow trip A moldboard support is pivotally hinged to its carrier and has a medial rearward portion pivotally connected to a lower link, the upper portion of the link having an arcuate ramp with a portion engaging a detent mounted in an upper link that is pivotally ... | 06/28/1994 |
| 5279236 | Seed planter A seed drill for planting seed in untilled ground. The drill is pulled by a prime mover and includes an array of double disk furrow opening assemblies in conjunction with a seed dispensing mechanism. The seed drill is equipped with an array of forwardly l... | 01/18/1994 |
| 5267619 | Disk harrow assembly A disk harrow assembly comprising a frame with an elongated beam and having an elongated shaft arranged generally parallel to and below the beam with a plurality of laterally spaced disks mounted on the shaft of rotation therewith. At least two laterally ... | 12/07/1993 |
| 5165486 | Implement lock-up system with shock-absorbing cushion springs An automatic implement lock-up system with shock absorbing cushion springs for releasably raising and lowering implements mounted to a vehicle. An implement is pivotally attached to a vehicle mounting bracket via an implement support arm. A lock-up bracke... | 11/24/1992 |
| 5158145 | Cultivator A rotary harrow blade assembly for a cultivator of the type including a drawbar for attachment to a towing vehicle, a pair of swing booms pivotally connected to the outer ends of the drawbar, and a plurality of skeletal frames extending rearwardly from th... | 10/27/1992 |
| 5129282 | Mechanism for selectively repositioning a farm implement A mechanism for adjusting the height of a farm implement/tool of the type to be carried by a drawing vehicle includes a connector for supporting a farm implement/tool in an operative position. A guide directs sliding movement of the connector selectively ... | 07/14/1992 |
| 4974683 | Ridge tillage attachment for planters A ridge tillage attachment includes springs associated with a linkage which guides a tool and wheel support beam for vertical movement, the springs being mounted within the linkage envelop to provide a compact arrangement and being operative to apply requ... | 12/04/1990 |
| 4800964 | Compact shank assembly with leaf spring A compact, leaf spring biased shank assembly with a shank bracket which clamps to a tube and leaves the upper portion of the tube relatively unobstructed to eliminate interference with the lift mechanism and/or implement frame. The shank bracket includes ... | 01/31/1989 |
| 4730678 | Heavy-duty trip mechanism for ground working implements Normally, spring loaded trip mechanisms increase in resistance and pressure as they move rearwardly. This device includes a swing arm above the shank with a roller engaging the upper surface of the shank. The tension springs extend from the swing arm to t... | 03/15/1988 |
| 4702323 | Ridge tillage attachment for planters A ridge tillage attachment for conventional row-crop planters for use in minimum tillage planting on row ridges is disclosed. This ridge tillage attachment includes a tool portion and a linkage portion. The linkage portion has a parallelogram linkage supp... | 10/27/1987 |
| 4700785 | Furrow opener assembly with integral down-pressure adjustment A shank assembly including a rearwardly opening bracket pivotally mounting a shank. A tension link extends upwardly from a central portion of the shank and through an apertured strap. A stop member at the upper end of the link limits the downward rocking ... | 10/20/1987 |
| 4699221 | Chisel plow release mechanisms This invention relates to an automatic release mechanism for a cultivator which provides good resistance to release of the shank holder and which upon release causes the shank holder to rise to a good height to clear obstacles encountered during operation... | 10/13/1987 |
| 4690223 | Rod weeder attachment for an agricultural implement A rod weeder attachment for the tool bar of an agricultural implement comprises an arm portion extending rearwardly from a clamp on the tool bar defined by a pair of spaced parallel bars extending rearwardly to a transverse strut. From the strut to the gr... | 09/01/1987 |
| 4683958 | Cultivator shank A cultivator shank is adapted for mounting at one end on a cultivator frame and has an open C-shaped central section with its other end receiving a ground engaging tool. In between its ends, the shank tapers through a profile of changing sectional dimensi... | 08/04/1987 |
| 4683959 | Blade guide system for grading vehicle with displaceable grading blade The grading vehicle has a grading blade which is guided displaceably on the frame of the vehicle transverse to the longitudinal direction of the vehicle. In order to obtain automatic readjustment of the guidance of the blade upon the occurrence of wear an... | 08/04/1987 |
| 4660650 | Sod cutting apparatus A sod cutting apparatus which includes a generally flat slide member having an upturned frontal portion and multiple slots extending in parallel, spaced relationship from front to rear, hinge arms pivoted to upward standing fulcrums secured to the slide m... | 04/28/1987 |
| 4635387 | Snowplow blade with spring-loaded edge flaps A snowplow with a blade having a lower edge to which several spring flaps are hingeably linked. Reset springs retain the spring flaps in their working positions, and return the spring flaps to their working positions after having been deflected. To preven... | 01/13/1987 |
| 4585211 | Method and apparatus for adjusting agricultural cultivator tynes An agricultural tyne assembly is disclosed which uses a series of linkages to transfer loading from the tyne as deflection of the tyne occurs upon striking an obstacle during tilling. There is also disclosed means to adjust the spring loading on an agricu... | 04/29/1986 |
| 4574715 | Agricultural fertilizer applicator An improved fertilizer applicator includes a rolling coulter and a knife both mounted to a single tool bar mount but with separate spring cushions for independent clearing action and designed for improved clearance suitable for use in heavy residue.... | 03/11/1986 |
| 4548277 | Spring reset mechanism for tillage tool A spring reset mechanism for a ground engaging tool includes a four-bar linkage mounting for the tool. A fixed cam surface is mounted to one of the links and a roller cam carried by a guide link is spring-biased against the cam surface to urge the tool in... | 10/22/1985 |
| 4532790 | Spring-loaded ground engaging tool A ground working assembly has an inclined arm swingable up and down on a tool bar of an agricultural implement, the assembly being yieldably biased downwardly by a cushioning spring associated with a bracket which mounts the assembly on the tool bar. A to... | 08/06/1985 |
| 4530406 | Spring clamp shank assembly A cultivating tool assembly for attachment to the tool bar of a cultivator frame utilizes an upright bracket for connection to the tool bar and an arm member pivotally connected to the mounting bracket and extending substantially horizontally therebehind.... | 07/23/1985 |
| 4520878 | Spring cushion chisel plow shank assembly A spring cushion assembly for a chisel plow shank is provided that eliminates the transmission of force from the shank and assembly spring to the tension rod of the assembly in directions transverse to the axis of the tension rod, thereby prolonging the l... | 06/04/1985 |
| 4502548 | Agricultural cultivator and tines therefor An agricultural tine assembly is disclosed which uses a series of linkages to transfer loading from the tine as deflection of the tine occurs upon striking an obstacle during tilling. There is also disclosed means to adjust the spring loading on an agricu... | 03/05/1985 |
| 4463813 | Spring mounted standard assembly A spring trip standard assembly for a chisel plow or the like, the standard assembly having a compact single coil spring structure with a trip geometry producing a high initial trip force and a reduced maximum to initial trip force ratio. The horizontal t... | 08/07/1984 |
