...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7806197 | Split rolling basket A strip tillage implement includes a single, center-mounted arm located directly above the row area of a strip-till berm. Basket halves are rotatably connected to opposite sides of the arm in cantilever fashion to eliminate outer support arms. Residue flow encounter... | 10/05/2010 |
| 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 |
| 6896068 | Tillage implement with indexed harrow A tillage implement includes a hitch adapted for connection to a prime mover. A cultivator section is attached to the hitch. The cultivator section includes a plurality of transversely spaced cultivator members. A tine harrow assembly is connected to the cultivator ... | 05/24/2005 |
| 6681868 | Rip strip primary tillage system An agricultural tillage implement is disclosed employing a series of apparatus to perform one-pass primary tillage. A coulter is the first apparatus that works the field. These coulters cut, size and part the residue without mixing it into the seedbed. Ne... | 01/27/2004 |
| 6068061 | Soil zone-builder coulter closer/tiller with vertical response mechanism and shank head An apparatus and method for tilling a seedbed with a soil manipulation device comprising a tilling shank for forming a groove in the soil followed a pair of coulter blades for closing the groove and a rear finishing device such as a rolling basket for fur... | 05/30/2000 |
| 5921324 | Device for clearing and seeding range land The invention comprises an apparatus for clearing range land of sagebrush an other invading non-grazing plant species. The device is adapted to be towed by a tractor, and has a pair of blades arranged in a "V" configuration, with the point of the "V" faci... | 07/13/1999 |
| 5437336 | Method and apparatus for creating an advantageous growing zone in a soilbed having a topsoil stratum and a hardpan stratum A soilbed having a topsoil stratum and a subsurface hardpan stratum is fractured by a subsoiling tine to form a trench-like path which extends in depth at least partially into the hardpan stratum. One or more pairs of rotatable blades are operated thereaf... | 08/01/1995 |
| 5285854 | Stalk and root embedding apparatus A stalk, root, and agricultural debris embedding or burying device particularly suited for row crops such as cotton. The apparatus is pulled behind a tractor in close proximity to the row crops. A furrowing tool creates a temporary furrow in a lee, and be... | 02/15/1994 |
| 5161472 | Multi-function draft implement A multi-function draft implement for opening, seeding, and fertilizing is disclosed. The implement provides a vertical knife opener for creating a vertical trench in the ground, a horizontal sweep for opening a horizontal swath in the ground and creating ... | 11/10/1992 |
| 5103624 | Method and means for sweeping stalks from furrows onto ridges and shredding same A three-point hitch furrow sweep and trash shredder are positioned with the furrow sweep being centered over the furrows for moving stalks onto the ridges where they are acted upon by the shredders. The shredders include a rotor in a housing having a plur... | 04/14/1992 |
| 5007187 | Snow plow arrangement for moisture retention in a field A snow plow member is attached to selected ones of the shanks of a cultivator frame by inserting the leading edges of the sweep at the lower end of the shank into slots formed on the rear surface of the snow plow member. A leading edge of the snow plow me... | 04/16/1991 |
| 4838360 | Minimum tillage implement A minimum tillage implement attaches to the tool bar of a planter device to allow topping of the rows, tilling of the rows, planting and chemical application to be accomplished in a single pass over the rows of a field. The minimum tillage implement compr... | 06/13/1989 |
| 4831945 | Opener assembly with depth gauging from a press wheel Relatively simple opener assembly structure for maintaining a generally constant vertical relationship between an opener and a trailing press wheel. The structure provides benefits of a parallel linkage design but obviates the extra links of, and provides... | 05/23/1989 |
| 4721048 | Trash seeder The invention is directed to a trash seeder having a seeding tyne and a following press wheel. A hydraulic cylinder applies pressure to both the seeding tyne and the press wheel. The press wheel is pivoted to the frame by a trailing arm and the tyne is pi... | 01/26/1988 |
| 4618004 | Method and apparatus for building borders This invention is directed to an improved method and apparatus for building ridges and borders on agricultural fields which are suitable for the containment of irrigation water in such fields. The apparatus comprises means to cultivate at least a pair of ... | 10/21/1986 |
| 4608933 | Apparatus for converting a chisel plow to a planter Apparatus is provided for readily converting a conventional pull-type implement such as a chisel plow into an effective planter. The conversion assembly includes a furrow opener such as a narrow shoe located adjacent the lower end of the chisel shank, alo... | 09/02/1986 |
| 4519460 | Compaction and support apparatus A compaction and support apparatus for packing the ground immediately after tillage includes a frame and a wheel support gang movably mounted adjacent a rearward end of the frame. A plurality of tillers are supported in spaced relation from the frame, and... | 05/28/1985 |
| 4493375 | Method and apparatus for forming and reforming a furrow To form a furrow for row guidance systems, a shank is mounted on a frame forwardly of a wheel which includes a V-shaped tire. The shank opens the ground and the tire crushes clods and packs the sides of the furrow. Depth bands on each side of the tire sha... | 01/15/1985 |
| 4438819 | Rice levee shaper and packer An improved land vehicle for constructing rice levees comprises a unitary, ground contacting roller-wheel assembly surrounded by a frame member. The shape and size of the roller permits the construction of rice levees having the desired shape and dimensio... | 03/27/1984 |
| 4337712 | Injection plow A fertilizer injection plow for underground fertilization by paste or liquid fertilizer. The plow, which is adapted for being mounted on a vehicle such as a tractor, carries one or more plowshares which are adjustable as to their depth of penetration into... | 07/06/1982 |
| 4311104 | Press grain drill A press grain drill includes a plurality of opener units mounted on an elongated tow tube and including a plurality of elongated, pivotably coupled elements forming a pair of parallelograms which support a self-penetrating shovel and a press wheel respect... | 01/19/1982 |
| 4294180 | Grain drill with device for preventing undesired backfilling of front furrow by rear furrow openers Forwardly disposed furrow openers and rearwardly disposed furrow openers are conventionally offset to one side of the path traversed by the forwardly disposed furrow openers. To prevent partial backfilling of the furrows formed by the front openers when t... | 10/13/1981 |
| 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 |
| 4177743 | Seedling transplanter A seedling transplanter has a main frame securable to a drawing vehicle by a draft bar and supported for movement over a piece of ground in which seedlings are to be planted. Coulter assemblies are mounted on the main frame for cutting a furrow as the fra... | 12/11/1979 |
| 4079788 | Hand-pushable tilling device A hand-pushable, tilling device includes a main frame carrying ground-engaging front and rear wheels, handle means on the frame and a selection of tilling tools, including at least a furrow-forming tool and a cultivating tool, each having a shank portion ... | 03/21/1978 |