William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7784416 | Seed firming assembly and method for agricultural seeders and mounting system therefor A seed firming assembly and method for agricultural seeders includes a large diameter seed-firming wheel for firming seeds into soil at the bottom of a furrow. The seed-firming wheel is located immediately behind a furrow opener and a seed guide. The seed-firming wh... | 08/31/2010 |
| 7426893 | Suspension system for planting unit A planting unit is provided having a seed trench opener that forms a seed trench in a ground surface as the planting unit travels along the ground. A depth regulating member is provided that has a predetermined vertical position relative to the opener. The depth reg... | 09/23/2008 |
| 7409916 | Method and equipment for interseeding an area of ground to convert the existing vegetation or to improve the quality of the existing vegetation Methods and apparatus for interseeding an area of ground having existing vegetation growing thereon are provided. The interseeder apparatus tills a plurality of spaced-apart rows in the ground, deposits seed in the exposed soil of the rows, compacts the seed into th... | 08/12/2008 |
| 7308859 | Suspension system for planting unit A planting unit is provided having a seed trench opener that forms a seed trench in a ground surface as the planting unit travels along the ground. A depth regulating member is provided that has a predetermined vertical position relative to the opener. The depth reg... | 12/18/2007 |
| 7216596 | Agricultural apparatus An agricultural plough (1) including a longitudinally extending support member (2) having a forward portion to be attached to a vehicle to thereby enable the apparatus (1) to be towed by the vehicle; a generally ānā shaped frame (500)... | 05/15/2007 |
| 7191715 | Tandem gauge wheel assembly for planting unit A seed planting assembly is provided having a plurality of planting units supported by a tool bar, each of which being operable to form a seed trench in soil, plant seeds in the seed trench, and close the seed trench. The seed trench defines a depth that is achieved... | 03/20/2007 |
| 7111566 | Seed planter including vertical positioner with locking member A seed planting assembly is provided having a plurality of planting units supported by a tool bar, each of which being operable to form a seed trench in soil, plant seeds in the seed trench, and close the seed trench. Each planting assembly is supported by the tool ... | 09/26/2006 |
| 7104206 | Agricultural apparatus An agricultural plough has a longitudinally extending support member having a forward portion to be attached to a vehicle to thereby enable the apparatus to be towed by the vehicle. A pair of axles extend laterally from opposite longitudinal sides of the support mem... | 09/12/2006 |
| 7090433 | Underground cable laying apparatus Presented is an underground cable laying apparatus that leaves virtually no visible scar in the turf under which cable, wire, line, hose, etc. is laid. The apparatus utilizes a pair of angularly displaced turf slicing wheels to slice and separate the turf forming a ... | 08/15/2006 |
| 7032527 | Vertical positioner for seed planter having integral locking mechanism A seed planting assembly is provided having a plurality of planting units supported by a tool bar, each of which being operable to form a seed trench in soil, plant seeds in the seed trench, and close the seed trench. Each planting assembly is supported by the tool ... | 04/25/2006 |
| 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 |
| 6978727 | Soil control mechanism A ground engaging seed delivery device comprising an elongate support arm 8 pivotally mounted to a driving structure via a mounting structure 7 adapted to accommodate vertical linear displacement wherein the support arm has an offset coulter disc 3 | 12/27/2005 |
| 6644223 | Disc opener assembly for a seed planter The present disc opener assembly for a seed planter is for a single disc opener arrangement and is embodied in several embodiments. FIGS. 1 and 1a illustrate two embodiments of the present disc opener assembly the specifics of each will be described below... | 11/11/2003 |
| 6295939 | Seed planter press-wheel assembly The invention relates to a press-wheel assembly of the kind used with seed planting machines and which includes a press-wheel (11) formed by a pair of mating wheel halves (11', 11"), the inner wheel half (11') being provided with an integrally formed hub ... | 10/02/2001 |
| 6216616 | Mid row banding coulter drill A coulter closing wheel assembly, a method of planting, and a mid row banding pneumatic coulter drill assembly support vehicle. One fertilizer coulter is positioned between two seeding coulters. The seeding coulters are followed by a furrow closing disc w... | 04/17/2001 |
| 6142085 | Hydraulic compression system for seeder A compression system for a dual material delivery assembly is described. The assembly includes a furrowing element for producing a furrow in the ground as it is towed across the ground. A fertilizer tube and a seed tube are provided for depositing fertili... | 11/07/2000 |
| 5957219 | Agricultural adjustable closing tool for use with a cutting implement A system for opening and closing ground has a coulter blade for cutting and opening the ground at a first angle to create an angled furrow, and a closing wheel for following the coulter blade for closing the ground. The closing wheel is inclined relative ... | 09/28/1999 |
| 5826524 | Seed forming wheel support having a lockup link A support for a seed firming wheel of an agricultural planter. The support comprises a frame member, a link pivotally coupled to the frame member and a spring positioned between the link and frame member. The frame member is also provided with a pivot ass... | 10/27/1998 |
| 5752454 | No-till disk opening system and method A method and apparatus for improved agricultural seeding; especially useful in no-till direct seeding. In the illustrated embodiment an inclined furrow is cut with a rotating disk that is inclined with respect to the vertical and the horizontal; the furro... | 05/19/1998 |
| 5724903 | Seed firming wheel support A support for a seed firming wheel of an agricultural planter. The support comprises a forked frame, a C-shaped link pivotally coupled to the forked frame and a spring positioned between the link and forked frame. The forked frame has a seed tube guard po... | 03/10/1998 |
| 5724902 | Minimum tillage seeding device A seeding device principally for no-tillage seeding conditions comprises a drag arm carrying two disk blades and transmitting the necessary forces thereto to cut through crop residues at the ground surface and to open a furrow for seed placement in the so... | 03/10/1998 |
| 5704431 | Active face packer wheel The invention provides a packer wheel to be towed behind agricultural equipment such as an air seeder, the wheel being used to pack the soil in which seed or fertilizer has been placed. The packer wheel includes a hub and a body extending from the hub to ... | 01/06/1998 |
| 5676073 | Closing wheels adjustment mechanism The present invention is an adjustment mechanism to move the seed firming wheels into its correct side-to-side position. The seed firming wheels are rotatably mounted to a bracket which in turn is mounted to a wheel support member of the planter unit fram... | 10/14/1997 |
| 5666892 | Combined farm machine performing all of the seeding operations in one pass Combined farm machine performing all of the seeding operations in one pass, comprising: a frame with a three-point attachment for the connection to the tractor and a hydraulic pump; several soil rippers; a roller for the macro- and microtillage of soil; a... | 09/16/1997 |
| 5609114 | No-till disk opening system and method A method and apparatus for improved agricultural seeding; especially useful in no-till direct seeding. In the illustrated embodiment an inclined furrow is cut with a rotating disk that is inclined with respect to the vertical and the horizontal; the furro... | 03/11/1997 |
| 5562054 | Seeding machinery A seeding assembly (20) for attachment to a cultivating or seeding tine (21). The seeding assembly (20) includes a seed tube (52) movably attached to the tine (21) by parallel linkages (53, 54). A wheel (63) is attached to the seeding tube (52) to regulat... | 10/08/1996 |
| 5398625 | Grain drill unit having seed firming wheel A seed firming wheel assembly is supported in close-coupled relationship with the rear portion of the paired discs of an opener to gently press deposited seeds down into the bottom of a V-shaped trench formed by the discs. The mounting arm of the assembly... | 03/21/1995 |
| 5331907 | Apparatus for depositing seed and fertilizer Apparatus for depositing seed and fertilizer in the ground comprises, a sectional frame, a seed supply and a fertilizer supply mounted on the frame, a multiplicity of unique fluid controlled seed row assemblies pivotally mounted on the frame to receive se... | 07/26/1994 |
| 5159887 | Plant transplanter A transplanter is disclosed which provides uniform planting without damaging plants. The transplanter includes a rotating cup assembly having two-piece clam shell cups, one of which opens by lateral movement by the cup halves of the cup. The transplanter ... | 11/03/1992 |
| 5060585 | Agricultural seed planter An agricultural seed planter comprising a frame adapted to be mounted to any conventionally drawn tool bar; a shaft attached to the frame and angled relative to the direction of travel and having mounted thereupon a soil cutting wheel designed as a multi-... | 10/29/1991 |
| 5022333 | Universal press wheel arm assembly A towable, furrow opening seed planting assembly includes a mobile frame and a planting unit, the planting unit including a ground engaging opener, a seed depositing apparatus and a press wheel for covering the deposited seed with soil. A variety of diffe... | 06/11/1991 |
| 4932340 | Subsoil placement apparatus Soil-treating materials are placed in the soil in a desired relation to the seed by placement apparatus that preferably follows the seed-depositing mechanism on a planter and deposits the material a selected distance to one side and below the deposited se... | 06/12/1990 |
| 4926767 | No-till drill providing seed and fertilizer separation A no-till drill mounts a seed distribution assembly on the upper portion of the back side of a chisel blade that cuts a furrow in the soil being planted. The seed distribution assembly includes a horizontal seed distribution plate having an upturned lip a... | 05/22/1990 |
| 4920901 | Double disc seed drill with V-shaped frame A seeding apparatus is provided which includes a V-shaped frame having forward and rear arms of which the forward arm is hitchable to a tractor or other vehicle for pulling such apparatus. The seeding apparatus includes a carriage assembly which supports ... | 05/01/1990 |
| 4893572 | Grain drill planting depth control In an agriculture grain drill which includes a pair of furrow forming disks rotatably mounted on a support connected with the grain drill in trailing fashion and on which downward pressure is exerted by the grain drill, a furrow closing disk depth control... | 01/16/1990 |
| 4762075 | Seed/fertilizer minimum tillage planter Apparatus for seed and fertilizer placement in the ground comprises a knife followed immediately by a first tube for depositing fertilizer and a second tube spaced therefrom for depositing the seed. The second tube can be adjusted horizontally and vertica... | 08/09/1988 |
| 4750440 | Hoe-opener assembly A hoe-opener assembly having a "float" feature is disclosed. The present invention ties operation of several hoe openers to a common framework so that uniform depth control can be maintained. The hoe-opener assembly of the present invention is drawn behin... | 06/14/1988 |
| 4726304 | Seed drill A seed drill has a frame, reservoirs, sowing shares, at least two separate inlets and outlets for two different materials, and a depth-guide or pressure roller behind each sowing share. Variable amounts of one material are conveyed to the forward outlet a... | 02/23/1988 |
| 4726303 | Zero-till drill This invention is directed to a novel zero-till seed drill which has a shortened wheel base and can thus closely follow the contours of a field which is being seeded, is capable of being raised and lowered at the beginning and end of each pass on the fiel... | 02/23/1988 |
| 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 |