Class 172/551 - Rolling tool spring biased into ground contact

Subclass of Class 172 - Earth working
Definition: Apparatus in which the rolling implement is journaled in
No. of patents: 40
Last issue date: 07/13/2010

Number	Title	Issue Date
7753133	Crust fracturing implement An apparatus for fracturing a crust on an agricultural field includes a tool bar and a support attached to the tool bar. A plurality of discs are non-rotatably attached to an axle that is rotatably supported by the support. Each of the plurality of discs include a p...	07/13/2010
7624814	Crust fracturing implement An apparatus for fracturing a crust on an agricultural field includes a tool bar and a support attached to the tool bar. A plurality of discs are non-rotatably attached to an axle that is rotatably supported by the support. Each of the plurality of discs include a p...	12/01/2009
7410005	Furrow closing and leveling apparatus An agricultural ground working apparatus includes a mounting bracket adapted for attachment to an implement frame. A shank is pivotally attached to the mounting bracket about a shank pivot axis and extends downward from the mounting bracket to a lower end thereof ad...	08/12/2008
6834598	Agricultural ground working implement An agricultural ground working implement is provided with a first ground working unit and a second ground working unit that follows the first ground working unit. A row cleaner is assigned to the portion of the soil upon which the second ground working unit acts. Th...	12/28/2004
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
5785129	Row crop cultivator having a fixed depth of penetration A row crop cultivator has a plurality of domed discs suspended in pairs from a suspension system in which the discs are firmly restrained against lateral movement relative to the crop row being cultivated but are free to move vertically to adjust to uneve...	07/28/1998
5657707	Spring-tine residue wheel for planters The residue wheel has a plurality of multiply bent spring-steel tines that project outwardly from their central hub at such angles that straight foot portions of the tines engage and lie flatly against the ground as the tines sweep residue rearwardly and ...	08/19/1997
5645000	Seed furrow closing apparatus for agricultural planters A seed furrow closing apparatus which utilizes a pair of tine wheels having inner and outer press plates which may be selectively removed depending on the particular soil conditions and amount of debris and residue encountered. The tine wheel comprises a ...	07/08/1997
5555825	Direct drill stump jump seeder A direct drill seeding unit comprising a coulter wheel (5), a pair of depth control wheels (7) and a splitter (9) where the main components of the seeding unit are pivoted on an elongate arm (1) which is connected to a common or main frame (3). The pivota...	09/17/1996
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
5419402	Rotary hoe A no-till rotary hoe includes trash cutters for cutting field trash carried by the earthworking implements. The rotary hoe also has a walking beam mounted on a support arm with rotary hoe wheels mounted on forward and rear ends of the walking beam. The wa...	05/30/1995
5341754	Rotary row cleaner for a planter 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...	08/30/1994
5316088	Rotary hoe mounting unit for row crop cultivator The present invention is a mounting device for individually mounting rotary hoes on the shanks of row crop cultivators. The tractor pulls shanks through the fields to cultivate the soil with rotary hoes connected to the shanks by a mounting device. The mo...	05/31/1994
5190112	Rotary hoe extension A rotary hoe extension and kit for extending the effective length of one set of arms of a rotary hoe to increase the separation of the axes of rotation of adjacent rows of hoe wheels to a distance greater than the diameter of the hoe wheel while maintaini...	03/02/1993
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
5020604	Dual tillage implement A combination tillage and incorporating implement having widely spaced sweeps in several rows at the forward portion of the main frame with tow trailing rows of angled spider wheels supported in pairs, for ground contour following ability and ease and fle...	06/04/1991
4991660	Rolling hoe A rolling hoe apparatus having a hub, shaft, bearings and a plurality of cultivating teeth, arranged into at least one hoe wheel and suspended from a bearing structure such that the axis (15) of rotation of the hoe-body (3) encloses an angle with the norm...	02/12/1991
4828042	Coulter chisel tillage tool A coulter chisel tillage tool includes a mounting apparatus for attaching a disc gang to a rockshaft. A bracket extends radially from the rockshaft and is connected to one end of a spring having its other end positioned in a retainer cup. The retainer cup...	05/09/1989
4817732	Spider wheel for a rotary incorporator A spider wheel for a rotary incorporator for one pass incorporation of chemicals or small grains in previously tilled soil. The incorporator includes two rows of aggressive, large diameter spider wheels supported from a toolbar for rotation in the soil ab...	04/04/1989
4776404	Multiple unit turf aerator An implement for aerating and dethatching golf courses, athletic fields and other sodded fields has multiple aerator units each including a plurality of earth piercing aerator elements mounted on a shaft. Arms of each aerator unit supporting the shafts ar...	10/11/1988
4768596	Soil crust loosening apparatus An apparatus for loosening a crust formed in the soil over planted seeds. A drum having a plurality of fingers rotatably disposed around an outer cylindrical surface thereof is biased toward the ground by spring rods which are adjustably attached to a fra...	09/06/1988
4648465	Resiliently mounted earth smoothing roller An implement for levelling the surface of an agricultural field, a so-called furrow-smoother, comprises a plurality of rings of rotary knives to throw the surface earth laterally away from the higher areas. The rings of knives are journalled in bearings w...	03/10/1987
4646850	Rotary incorporator and spider wheel therefor A rotary incorporator for one pass incorporation of chemicals or small grains in previously tilled soil. The incorporator includes two rows of aggressive, large diameter spider wheels supported from a toolbar for rotation in the soil about axes offset at ...	03/03/1987
4622906	Onion planter Planter apparatus (10) including a plurality of pivotally mounted arms (22, 24) each having a disc unit (26) arranged on an outboard end thereof has each of the arms constructed with horizontal and angular portions (28, 30 and 32, 34) disposed at such an ...	11/18/1986
4524837	Soil conditioning and bed preparation apparatus Soil conditioning apparatus having a main frame, and means coupled to the main frame for cutting and loosening compacted soil to prepare a seed bed and rooting environment, including a subsoiler coupled to the main frame and angled to be pulled downwardly...	06/25/1985
4466492	Earthworking implement having spring biased arms A rotary hoe has a tool bar mounted on a tractor and a plurality of individually pivoted arms carrying hoe wheels. Springs bias the arms in a downward direction to force the hoe wheels into the soil. A rotatable torsion tube supports the springs. An adjus...	08/21/1984
4428437	Mount assembly including structure to effect substantially constant biasing force A yielding mount assembly connecting a movable arm to a support. The arm is adapted to be attached to a number of structures including an earthworking tool, a rotary hoe wheel, a belt tightener roller, and a wheel supporting a vehicle. The mount assembly ...	01/31/1984
4425972	Split ring spring for earth working tool An earthworking tool having a biased trip assembly for yieldably holding the tool in a ground working position, allowing the tool to move over an obstacle, and return the tool to its earthworking position. The trip assembly has a stationary hinge member m...	01/17/1984
4418761	Adjustable tillage implement positioning apparatus A mounting/positioning apparatus for attaching an agricultural implement such as a reel unit or a rotary packer assembly to the frame of a tillage machine is disclosed. The apparatus includes two opposing end portions rigidly coupled together by means of ...	12/06/1983
4415041	Minimum till rotary hoe A minimum tillage rotary hoe includes a tool bar mounted transverse to the direction of field travel. Projecting rearwardly from the tool bar are a plurality of rotary hoe support arms each having a single, uniform diameter, multi-tined rotary hoe affixed...	11/15/1983
4398608	Rotary hoe A hoe that includes a transversely extending tool bar, a pivot shaft mounted on the rear and lower portion of the tool bar and extending parallel thereto, a plurality of support arms spaced along the tool bar and pivotally mounted on the shaft, each arm h...	08/16/1983
4312409	Rotary hoe implement A rotary hoe implement includes upstanding spacer members for connection to a tool bar for drafting by a tractor. A rotary hoe supporting arm is pivotally connected to a lower end of the spacer member and an elongate adjustment rod extends from a rear end...	01/26/1982
4267783	Seed bed preparation method and apparatus A farm implement is provided having a sub-soiler followed by a seed bed preparation tool and a planter. The seed bed preparation tool includes a rotary bladed portion for filling in the furrow left by the sub-soiler with soil turned up by the sub-soiler a...	05/19/1981
4241793	Rotary hoe scratcher A set of four rotary hoes are evenly spaced apart laterally so that the distance between the tracks is two inches and the distance between the outside hoes is six inches. The assembly is pivoted about the center to ride over uneven ground. The front and b...	12/30/1980
4231433	Cultivator with tool support arm and latch for holding same in raised non-working position Closely spaced cultivating tools are mounted along a tool bar and each tool may be locked in a raised position relative to the ground or may be lowered into floating engagement with the ground during use of the implement. A small tool bar is mounted paral...	11/04/1980
4213408	Combination ripper, mixer and planter An agricultural implement is disclosed which is adapted to perform soil ripping, mixing, and seed planting behind a single prime mover. Soil ripping is accomplished by a parabolic pointed shank attached to a frame by a pivot bolt and secured by a shear bo...	07/22/1980
4194575	Multiple rotary hoe and support arms A multiple rotary hoe including individual hoe wheels mounted in front and rear rows with an individual support arm for each wheel and all of the support arms having a common axis mounted on a single pivot shaft for independent pivoting action in response...	03/25/1980
4192626	Machine for applying a uniform pressure A machine for uniformly applying a pressure on a relatively flat surface includes a portable frame structure and at least one frame supporting roller rotatably mounted on an axle by a pair of spaced journal assemblies. Each journal assembly has an upright...	03/11/1980
4102406	Ground conditioning device and method of conditioning soil Water-holding and retaining cavities are formed in furrows with the cavities being staggered between adjacent rows. An arm spring biased downwardly carries a hub having spikes in planes laterally spaced apart with the spikes around the hub being staggered...	07/25/1978
3967685	Independent and biased cultivator support A rotary hoe implement, having hoe support arms independent of adjacent hoe support arms, and a selectively adjustable means for varying the downward pressure exerted by the leaf spring biasing means acting on each support arm....	07/06/1976

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Class 172/551 - Rolling tool spring biased into ground contact