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 |
| 8434563 | Device for cultivating soil or brushing debris A device for cultivating soil or brushing debris includes a frame supporting a transmission, a motor, and a shaft rotatably supported by a transmission housing and driven by the motor through the transmission. A distal end of the shaft includes a passageway therethr... | 05/07/2013 |
| 7240627 | Crop debris clearing device A residue coulter apparatus that cleanly severs and clears crop debris from a planting row, causing minimal disturbance to the soil. The residue coulter apparatus comprises a pair of flat discs each having a plurality of back swept shark type teeth extending about t... | 07/10/2007 |
| 7143838 | Wavy farming disc A wavy farming disc for working the soil in farming activities, particularly in no-till works for seeding, wherein the disc comprises a plate having a peripheral circular cutting edge and a central portion, and a plurality waves in the plate with the waves extending... | 12/05/2006 |
| 7063165 | Turf blade and aerator A planar, turf cutter blade formed from either high carbon or stainless steel has planar cutting teeth that extend radially from the periphery of a central part of a planar disc in which a centrally located hole is formed. A turf aerator that uses the turf cutter bl... | 06/20/2006 |
| 6367561 | Tine assembly for a cultivator A tine assembly for a cultivator includes a first tine member having a plurality of radially extending non-planar tines. At least two tines on each tine member differ in shape from the remaining tines. The tine assembly may include a second tine member wh... | 04/09/2002 |
| 6364030 | Teeth arrangement for blade disks A blade assembly for use with a tilling mechanism including a first blade disk. A second blade disk is coaxially mounted to rotate with the first blade disk and is positioned in a spaced apart generally parallel fashion relative to the first blade disk. T... | 04/02/2002 |
| 5970891 | Seed planter with gauge wheels and closing wheels having horizontal fingers A seed planter is described which includes a pair of gauge wheels having a plurality of spaced fingers in generally-horizontal planes. The gauge wheels do not pack the surface of wet soil. In another embodiment, there are provided closing wheels which inc... | 10/26/1999 |
| 5850882 | Garden power tool A hand held garden tool that utilizes rechargeable batteries and a variable speed, reversible motor as its power source. A drive shaft housing serves as a long handle member and contains a drive shaft. The drive shaft and its housing are connected to, and... | 12/22/1998 |
| 5497836 | Row cleaner A row cleaner comprising a pair of ground engageable finger wheels which are angled with respect to each other so they converge forwardly toward the center of their normal path of travel. Each of the finger wheels includes a central disc-shaped portion ha... | 03/12/1996 |
| 5346020 | Forged clearing wheel for agricultural residue A clearing wheel for agricultural residue. The wheel has a hub defining a central axis, about which the cleaning wheel can be rotated in use, and a plurality of cutting teeth projecting radially outwardly from the hub to intercept and resituate residue up... | 09/13/1994 |
| 5299647 | Tined rotary blade for cultivators A rotary blade for use on a cultivator or rototiller. The blade comprises two disk-like members mounted on a hub having a central axis and a central opening to mount it for rotation about that axis. Each disk-like member has ten tines projecting generally... | 04/05/1994 |
| 5297637 | Agricultural disc blade An agricultural tool including a disc blade incorporating hard wear resistant inserts for attachment to an axial member of an agricultural tool for rotation through the soil. The disc blade includes parallel spaced flat round front and rear surfaces havin... | 03/29/1994 |
| 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 |
| 5056605 | Multipurpose cutting means A multipurpose cutting device for use with power drives is disclosed. Specific and different blade configurations are provided on opposite sides of an elongated bar or a disk type support for performing different cutting functions. By securing one side of... | 10/15/1991 |
| 4702643 | Compaction wheel A compaction wheel is described which is suited for use with a backhoe or the like having a pivotal boom arm extending therefrom. The compaction wheel includes a supporting frame which is pivotally secured to the free end of the backhoe boom arm. A plural... | 10/27/1987 |
| 4611668 | Assembly for forming water retaining pockets and levelling the ground surface An assembly for attachment to a tractor having rotatable elements which will form water collecting and retaining pockets in the ground surface being traversed thereby preventing or reducing water erosion, wind erosion and retaining water for penetration i... | 09/16/1986 |
| 4538688 | Fluted coulter blade Disclosed herein is a fluted coulter disc blade with a circumferential cutting edge portion, flutes circumferentially spaced apart around the disc and having a radially and axially tapered configuration, notches in the peripheral cutting edge portion, and... | 09/03/1985 |
| 4421176 | Portable power operated cultivator with axially adjustable shield A portable power operated cultivator includes a power unit comprising an internal combustion engine having a handle portion and being connected to one end of an elongated boom. A right angle gear drive mechanism is mounted on the opposite end of the boom ... | 12/20/1983 |
| 4284146 | Soil working machine A soil working machine pivotably mounts at least one rotor having serrated working elements. The rotor is pivotally connected at each end to a frame beam by a pin which can be inserted into either one of two holes located one above the other. The hole cho... | 08/18/1981 |
| 4280565 | Soil working machine A soil cultivating machine includes a frame and a plurality of cultivating members in one or more groups journalled to said frame. Each group is driven to rotate about a horizontal shaft extending substantially transverse to the direction of machine trave... | 07/28/1981 |
| 4279310 | Soil working machine A soil working machine has at least one, preferably two rotors, one of which is at a higher working level than the other to achieve a relatively large working depth. The rotors are driven through a drive gear transmission located about midway along the le... | 07/21/1981 |
| 4250968 | Minimum wrap bi-rotational cutter wheel for a tillage implement An improved cutter wheel that is useful in conjunction with tilling apparatus for sod seeding purposes. The wheel has a body fashioned from sheet metal. The periphery is characterized by smooth contours which define the teeth and gullets. The wheel is dev... | 02/17/1981 |
| 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 |
| 4099576 | High-speed agricultural disc By providing a circular, dished agricultural disc with peripheral V-shaped notches and intervening ovate-shaped openings, the disc may be operated at relatively high speeds while still achieving vigorous cutting, stirring and mixing of the soil. At the sa... | 07/11/1978 |
| 4098349 | High-speed agricultural disc By providing a circular, dished agricultural disc with peripheral W-shaped notches, a small tooth being formed at the center of each notch, the disc may be operated at relatively high speeds while still achieving vigorous cutting, stirring and mixing of t... | 07/04/1978 |
| 4070974 | Disc trench filler for a no-till planter A disc-like device, the peripheral edge of which is formed in a plurality of oppositely turned curved segments is attached to a no-till planter as used in planting seed crops in fields which have not been plowed. The disc-like device is arranged to follow... | 01/31/1978 |
| 4069875 | Rolling ring A rolling ring for a loose ring packer-mulcher is fabricated from a strap of mild steel. Spurs are punched from the strap by a lance die and the strap is rolled to a ring and welded together.... | 01/24/1978 |
| 4059161 | Tillage apparatus and improved blade therefor A tillage apparatus for sod seeding usage includes a plurality of tillage unit assemblies having power driven blades receiving power from a tractor which tows the apparatus. An improved tillage blade is disclosed.... | 11/22/1977 |
| 4047576 | Cultivator wheel for agricultural machines A cultivator wheel is disclosed for use in agricultural machines. It has a hub and tines which project substantially radially from the hub and are provided with pointed outer end portions. These tines are bent out of the central radial plane of the wheel.... | 09/13/1977 |
| 4044839 | Soil cultivating machines A soil cultivating machine has side-by-side working members mounted on upwardly extending shafts that extend slightly forward with respect to the direction of travel. Each working member includes radial arms and at the outer end of each arm a tool, such a... | 08/30/1977 |
| 4043404 | Tillage apparatus having improved cutting and drive structure An improved cutting and drive structure is disclosed that is particularly useful in conjunction with tilling apparatus for sod seeding purposes. The structure includes a tillage blade or cutter wheel mounted for rotation by a drive structure that includes... | 08/23/1977 |
| 4033270 | Agricultural soil chemical incorporator Disclosed is a farm implement for incorporating chemicals sprayed on top of soil into a predetermined depth of the soil. The incorporator implement consists of a frame adapted to be suspended on a three point suspension mechanism of a tractor and two gang... | 07/05/1977 |
| 4023510 | Depth control and protective apparatus for tillage assembly A depth control and protective apparatus is disclosed as particularly useful in a tillage assembly for sod seeding purposes. The apparatus includes a pair of skids mounted upon a pivoted arm, which arm has also mounted thereon a pair of cutter wheels for ... | 05/17/1977 |
| 4016934 | Packer wheel construction Conventional land packer wheels used in conjunction with seed drills or the like tend to pulverize the soil and often become clogged with debris. The present device gives proper soil compaction and does not pulverize or clog due to the shape of the teeth ... | 04/12/1977 |
| 3995699 | Replaceable insert for agricultural disc A replaceable tool for attachment to the periphery of an agricultural disc is formed of an inverted U-shaped investment casting which can be fitted over the marginal edge portion of the disc to present parallel leading and trailing faces connecting side s... | 12/07/1976 |
| 3939917 | Spiker blade A spiker blade for use on a turf spiker assembly to break and ventilate a ground surface thereby facilitating penetration of air, water and nutrient through the surface. The spiker blade has a tooth profile with a trailing edge having a counterdepression ... | 02/24/1976 |
