Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 6926092 | Hydraulic tiller assembly A tiller assembly includes a tine assembly that is rotatably connected to a tiller body and the tine assembly includes at least one tine for use in tilling associated soil. A hydraulic system is operatively connected to the tine assembly and includes a hydraulic pum... | 08/09/2005 |
| 6644416 | Tiller A tiller (10) having an engine (24), a plurality of rotating times (20), and a handle (26) which are rotatable with respect to a main frame (12) of the tiller (10) and cooperate with pivoting wheels (14) to facilitate turning of the tiller (10) while main... | 11/11/2003 |
| 6554078 | Multi-function farm implement for treating soil The farm implement of this invention is movable across ground along a direction of travel for tillage. The farm implement includes at least a frame and a disc/drive unit. The disc/drive unit includes first and second pluralities of discs, each having a gr... | 04/29/2003 |
| 6467550 | Hydraulic tiller assembly A tiller assembly includes a tine assembly that is rotatably connected to a tiller body and the tine assembly includes at least one tine for use in tilling associated soil. A hydraulic system is operatively connected to the tine assembly and includes a hy... | 10/22/2002 |
| 6056066 | Soil regeneration apparatus and method An apparatus for regenerating compacted soil in reclaim surface mining lands is provided. The apparatus includes an auger rotatably mounted above and forward of the blade of an earthmover, such as a bulldozer. The auger is longer than the blade and is mou... | 05/02/2000 |
| 5743338 | Conservation implement including a shredder A conservation tillage implement including a shredder with a transverse rotor hood structure having one-piece end panels which are welded to each side of the hood and project rearwardly of the hood to receive a toolbar which extends the width of the imple... | 04/28/1998 |
| 5265681 | Landscape levelling and raking apparatus A landscape leveling and raking apparatus has a frame, a handle protruding upwardly from the frame, a rake pivotally coupled to the frame to protrude downwardly and rearwardly therefrom, a screed fixed to the frame forwardly of the rake, a plurality of ti... | 11/30/1993 |
| 5197551 | Extended drag tool for a front tine tiller A drag bar having a tiller directing control arm is provided for use with front tine gardening tillers. The control arm presents a user with means upon which to apply directionally controlling forces to a front tine tiller as well as to apply drag forces ... | 03/30/1993 |
| 5046346 | Agricultural machine The invention relates to an agricultural machine for soil-cultivation, comprising, in the direction (F) of travel of the machine, a first row of cutting wheels arranged at right-angles to the said direction of travel and having substantially horizontal ax... | 09/10/1991 |
| 4591001 | Garden tillers A toolbar attachment assembly for a rear tine rotary tiller having a tine guard and forward wheels. The toolbar attachment assembly is secured to the tiller in place of the drag stake. A V-shaped brace allows for the assembly to be attached without removi... | 05/27/1986 |
| 4560010 | Soil layer cultivator with a pressure roller unit To prevent the development of clods on the soil surface when using a soil layer cultivator for the deep loosening of a field or the like, a pressure roller is provided to travel over the soil surface rearwardly of the elements effecting the deep loosening... | 12/24/1985 |
| 4552079 | Machine for planting seeds A machine for planting seeds includes a rotary soil lifting device which lifts broken-up soil, a tamping roller which tamps the remaining broken-up soil, an arrangement for placing seeds onto the upper surface of the tamped layer of the ground, and an arr... | 11/12/1985 |
| 4509438 | Combination implement for agricultural cultivation A combination implement for agricultural cultivation has a main frame liftably connectable with a pulling or dragging machine and supporting a cultivating device, and an auxiliary frame carrying a crumbler roller which supports the combination implement d... | 04/09/1985 |
| 4499747 | Power driven disc cultivator apparatus A power driven disc cultivator apparatus includes a main frame to which are connected a main sub-frame assembly and at least one second sub-frame assembly. The main sub-frame assembly mounts a shaft provided with spaced cultivator discs which are constrai... | 02/19/1985 |
| 4343366 | Rotor tiller with reversely directed plow A handle-guided, walking type, power-operated rotor tiller, having blades for digging a path in crusted soil while propelling itself along a path is provided with a plow, mounted in rear of the rotor blades to follow in the cultivated path with minimum re... | 08/10/1982 |
| 4227580 | Implement with side screening plates and soil roller A harrow has an elongated frame beam supporting a row of rotatable soil-working members mounted side-by-side on upwardly extending shafts. The frame beam and row of soil-working members extend transverse to the direction of travel of the harrow. At each l... | 10/14/1980 |
| 4197032 | Apparatus and method for forming a continuous strip of paving An apparatus for concurrently preparing a ground surface and forming a continuous strip of paving material thereon, and which is characterized by the ability to simultaneously grade the ground surface substantially coextensively with the successive slip f... | 04/08/1980 |
| 4140185 | Soil cultivating implements A soil cultivating implement has a row of working rotors which are supported by a plurality of elongate, resilient rod-like elements that are arranged to afford a grating immediately to the rear of the rotors. The elments are C-shaped with their convex si... | 02/20/1979 |
| 4127176 | Soil cultivating implements A cultivating implement includes a row of soil working members, such as tined rotors, and a driven soil crumbling member positioned at the rear of the cultivating tines. A driving transmission is interconnected to a rotatable bladed crumbling member or to... | 11/28/1978 |
| 4114695 | Rotary harrow with pivotable coupling assembly An implement has an elongated frame that extends transverse to the direction of travel and soil-working members rotatably mounted on a portion of the frame that depends from spaced apart, forward and rear frame beams. A coupling assembly having coupling p... | 09/19/1978 |
| 4114696 | Cultivators A cultivating implement has a row of soil working members journalled along the length of an elongated frame portion. The frame portion extends transverse to the direction of implement travel and a support beam with further soil working members is position... | 09/19/1978 |
| 4102402 | Subsoiler An implement having an elongated tool extendable into the subsoil to break up the hardpan and open the subsoil for moisture and tap roots of plants. The tool has orbital motion generated with power driven eccentric structures coupled to the tool. Power is... | 07/25/1978 |
| 4072196 | Cultivators A cultivator has groups of soil working members positioned in a row that extends transverse to the direction of travel. Each group includes a plurality of tined soil working members and a drive system that rotates each group as well as the individual soil... | 02/07/1978 |
| 4059160 | Rotary harrows A rotary harrow has a transverse frame, including an elongated hollow beam, and rotatable soil working tined members are mounted on upwardly extending shafts journalled in the beam. A supporting elongated roller has arms that adjustably connect to the fra... | 11/22/1977 |
| 4051902 | Soil cultivating implements A cultivating implement has one or more forward cultivating rotors that are driven to work the top soil. During this working, stones and debris are unearthed. At the rear of the cultivating members, one or more rows of soil working members are moved throu... | 10/04/1977 |
| 4051792 | Structural orientation and protective apparatus for tillage assembly A structural orientation and protective apparatus is disclosed that is particularly useful in a tillage assembly for sod seeding purposes. The apparatus includes a pair of skids each of which is adjacent to a cutter wheel mounted on the tillage assembly f... | 10/04/1977 |
| 4046202 | Cultivators A tractor drawn cultivator comprises a frame extending transversely to the direction of movement of the tractor. A plurality of spaced apart vertical axis rotary driven cultivator members comprising downwardly extending tines are supported from the frame.... | 09/06/1977 |
| 4037544 | Agricultural machine A self-propelled agricultural machine which includes a vehicle capable of automonously advancing when driven, and an assembly of implements capable of processing the soil during advancement of the vehicle. The machine includes a primary source of mechanic... | 07/26/1977 |
| 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 |
| 3983943 | Soil cultivating implement combinations A combination implement has a leading cultivator with fixed tines and a rear rotary harrow with driven soil working tined members. The cultivator has side ground wheels with vertical adjusting means that controls the working depths of the fixed tines. The... | 10/05/1976 |
