MXPA96003098A - A mecan seed dispenser - Google Patents
A mecan seed dispenserInfo
- Publication number
- MXPA96003098A MXPA96003098A MXPA/A/1996/003098A MX9603098A MXPA96003098A MX PA96003098 A MXPA96003098 A MX PA96003098A MX 9603098 A MX9603098 A MX 9603098A MX PA96003098 A MXPA96003098 A MX PA96003098A
- Authority
- MX
- Mexico
- Prior art keywords
- seed
- cover
- drum
- space
- seeds
- Prior art date
Links
- 239000012212 insulator Substances 0.000 claims description 11
- 210000001520 Comb Anatomy 0.000 claims description 9
- 230000014759 maintenance of location Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000789 fastener Substances 0.000 claims description 4
- 230000001105 regulatory Effects 0.000 claims description 4
- 238000010899 nucleation Methods 0.000 claims 2
- 210000000614 Ribs Anatomy 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 240000007842 Glycine max Species 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 210000000088 Lip Anatomy 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive Effects 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 235000005824 corn Nutrition 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
Abstract
The present invention relates to a seed doser for dosing seeds for a piece of seed metering equipment, the seed metering comprises: a cover having an inlet for receiving the seeds and a feed for dispensing the seeds; a dosing drum mounted rotatingly on the cover, the drum is provided with a plurality of radially extending ribs, which extend through the drum and between which a plurality of seed receiving valleys are located, the drum and the cover define a space: divider comb mounted on the cover and dividing the space formed between the tamvor and the cover in a seed spout space and in a seed receiving space, the seed receiving space being in communication with the entrance of the cover and the spout space of seeds being in communication with the exit of the cover, the dosing drum is provided with a side surti The seeds that rotate through both the seed receiving space and the seed spout space, the splines on the seed spout side of the dosing drum are provided with fingers extending to form the seed receiving sacs, and a seed support comb mounted on the box to hold the seed in the seed receiving bags, so that when the drum is turned on the cover the seeds are trapped in the seed receiving bags and pass from the seed receiving space to the seed spout space where it is released by the support comb and passes through the spout
Description
ÜN MECHANICAL DB SEED DISPENSER
BACKGROUND OF THE INVENTION
1. Field of Invention:
The invention is directed to a mechanical seed metering device which can be used in seeders, grain seeders and air seeders.
2. Previous Art Description:
In the United States of North America, the vast majority of crops are sown with row crop planters, grain seeders or seeders by air. Row crop planters are designed to place seeds in rows far enough apart to allow control of weeds through cultivation and to improve harvest efficiency. Grain seeders and air seeders are used in solid planted when the row spacing is too close to allow cultivation or other cultural practices.
All three sowing machines dose the seeds so that they can be planted evenly in a field. Row crop planters usually have the most sophisticated metering or metering equipment to single out seeds, while grain seeders and air seeders use volumetric meters which apply a fixed volume of seeds per linear foot. Volumetric meters typically comprise fluted drums which rotate through the seed deposit, as illustrated in U.S. Patent Nos. 3,489,321 and 3,763,797. Of particular interest is U.S. Patent No. 3,489,321 which describes a dosage drum having helical grooves.
Singular mechanical seed meters are used on seeders that include seed plate meters, finger tap meters and "brush meters". A seed plate seed meter is a mechanical seed meter that has a rotating plate located at the bottom of the seed hopper. The plate is provided with seed cells in which the seed is trapped. If the cells are of the correct size, only one will be trapped in each cell. The plate is then rotated over the discharge area and the seed is released. U.S. Patent Nos. 3,486,659, 4,282,985 and 4,609,131 describe various configurations for seed plate type seed meters. Of particular interest is U.S. Patent No. 4,609,131 which is a hybrid seed spout device also having a fluted drum for delivering seeds volumetrically.
Another mechanical seed measurer is the finger picker seed meter. This meter is used for corn and comprises a series of fingers that pass through the seed deposit. The fingers are initially opened in the seed deposit and then closed by trapping the seeds between the fingers on a stationary plate. The additional seeds trapped by the fingers are removed by passing the fingers over indentations in the stationary plate as the seed is transported to the discharge area where the finger is opened by releasing the seed. An example of a finger pick meter is described in U.S. Patent No. 3,552,601.
Recently "brush meters" have been used to dose soybeans. A vertical rotating seed plate having a plurality of seed cells around its periphery passes through the seed deposit. The seed is trapped in the seed cells by the brushes. Examples of "brush meters" are described in U.S. Patent Nos. 4,924,786, 5,027,725 and 5,058,766.
SUMMARY
It is an object of the present invention to provide a simple mechanical seed meter for singling out large seeds and volumetrically dosing small seeds. The seed meter can be used on row crop planters, grain seeders and air seeders.
The seed meter of the present invention comprises a cover and a dosing drum. The cover is provided with an inlet to receive seeds and an outlet to supply the seeds. The drum is rotatably mounted on the cover and provided with angled grooves defining said seed receiving valleys. The seed spout side of the drum is provided with outwardly extending fingers defining the seed receiving bags. The fingers and bags that receive the seeds are as wide as the seed that will be singled out, for example the width of the soybeans.
A flexible insulator divides the space between the dosing drum and the cover in a seed receiving space and in a seed spout space. The flexible insulator comprises a divider comb having urethane teeth.
A holding comb retains the seed in the seed bags by rotating the seed through the flexible isolator from the seed receiving space to the seed spout space. After the seed reaches the seed spout space, the stop comb ends and the seed is released at the outlet.
The flexible insulator and the holding comb are mounted on the inner periphery of the cover. The flexible teeth of the flexible insulator extend into the seed receiving valleys formed by the flutes of the dosing drum. When the dosing drum is rotated through the seed receiving space it first encounters the retainer comb. As it rotates further it encounters the tapered flexible insulator which drives the seed, not held by the holding comb, outward from the spout side of seeds in the bags formed by the bags projecting outward.
Two additional combs are mounted on the inner periphery of the cover. These are the flow regulator comb and the sealing comb. The flow regulator comb extends through the seed receiving space to one side of the tapered portion of the splitter comb. The sealing comb extends between the divider comb and the cover wall immediately downward of the outlet to prevent the seed from shortening the meter circuit and entering the outlet directly.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a cross-sectional side view of the seed doser.
Figure 2 is a sectional view taken along line 2-2.
Figure 3 is a side view of the dosing drum.
Figure 4 is a front view of the dosing drum.
Figure 5 is an unrolled top view of the divider and retainer combs.
DETAILED DESCRIPTION
The seed doser 10 of the present invention comprises a cover 12 having an inlet 14 and an outlet 16. A metering drum 20 is rotatably mounted on the cover and provided with a plurality of radially extending grooves 22 defining the receiver valleys of seeds 24. The grooves and valleys are angled as illustrated in Figure 4. The inner cover virtually conforms to the outer circumference of the dosing drum except that the relief area 18 is located immediately below from outlet 16.
The dosing drum 20 is a molded plastic part having a square opening 26 for receiving a drive shaft and an axially extending circular lip 28 for mounting the drum in a circular receiving aperture in the cover. The hollow dosing drum is provided with four reinforcement bras 30.
The dosing drum is provided with a seed spout side where the splines are provided with upwardly extending fingers 32 defining the seed receiving bags 34. The width of the fingers and of the sacks is dictated by the width of the seeds. seeds that will be singled out. If smaller seeds are being planted, the seed bags accept more than one seed and function as a volumetric meter.
The interior of the cover is provided with a flexible insulator 40 and a holding comb 42. In the illustrated embodiment, the flexible insulator comprises a divider comb, however, a brush may be replaced by the divider comb. The flexible insulator defines the space between the dosing drum and the cover within the seed receiving space and the seed spout space. The flexible insulator 40 is provided with bristles projecting inward from the seed receiving valleys 24 of the dosing drum 20.
The front part 44 of the splitting comb 40 is tapered to drive the seeds in the seed receiving valleys 24 and not in the seed bags 34 outwardly from the seed spout side of the dosing drum. The seeds located in the seed bags 34 are maintained in retainer means to retain the seeds in the seed bags. The detent comb has shorter times than the splitter comb. The teeth of the detent comb only extend to the upper part of the fingers that extend outwards 32.
As the dispensing drum 20 is rotated from left to right from the seed receiving space to the seed spout space through the splitter comb, the singled seeds located in the seed bags 34 are held in place by the retention comb 42 The singled seeds are kept in the seed bags until they reach approximately the three o'clock position where the retention comb ends. At this point the singled seeds are directly on the outlet 16 and are forced outward from the bags by a centrifugal force and fall into the outlet 16. The empty bags will then continue to rotate through the spout space back into the receiving space. seeds where these will be taken by new seeds.
The seeds not located in the bags 34 are propelled to the sides by the damaged part of the divider comb 40 and prevented from passing from the seed receiving space to the seed spout space. As shown in figure 2 the divider comb does not extend through the dispenser. Seeds pushed outward from the seed spout space are rotated in the seed receiving valleys in the seed receiving space at the same rate as the seeds singled out from the spout space. In this way, as the empty seed bags 34 pass out of the seed spout space to the seed receiving space, the sacks 34 are easily reloaded with seeds and having the same rotational speed as the seed sacks 34.
A flow regulating comb 50 is transversely mounted across the cover in the seed receiving space on one side of the tapered portion 44 of the holding comb 40. The flow regulating comb 50 helps to keep the seeds evenly distributed in the seeds. seed-receiving valleys 24 and helps prevent seeds from overloading and shortening circuits in the splitter comb 40.
A sealing comb 60 is located immediately downstream of the outlet 16 and is an essentially disengaged portion of the holding comb. The sealing comb 60 prevents the seeds from passing directly from the relief area 18 into the outlet 16 and therefore shortens the circuit of the seed doser.
The combs unrolled, except for the flow regulating comb, are illustrated in Figures 5 and 6. These combs can be secured to the inner periphery of the cover by releasing the fastening means 64, such as a similar hook and fasteners The curls or combs can be permanently secured with adhesives.
The sealing combs and flow regulators, retainers and dividers are formed of flexible and elastic polyurethane strips that are notched to form teeth. The divider comb is formed from the thin strip of polyurethane. The strip used to form the divider brush is not laterally notched to form pointed teeth 62. In addition, the strip is cut at an angle to form the side with angle 64 of the tooth 62, see Figure 2. In the illustrated embodiment, the polyurethane strip used to form the retention comb is shorter and thicker than the strip used to form the divider comb. As such this strip is notched laterally to form the retaining teeth 66 and is notched longitudinally to form a double row of teeth. It should be noted that the width of the retention comb is dictated by the width of the seed receiving bags. The sealing comb is essentially an extension detached from the holding comb and is formed in an identical manner. The flow control comb is a thin strip polyurethane in the shape of a sheet. The blade is notched to form wide flat teeth.
It should be noted that the brushes can be replaced by the various combs, and that such invention should not be limited to the modality described above, but should be limited only to the clauses that follow:
Claims (15)
1. A seed proportioner to measure seeds for a piece of planting equipment, the seed proportioner comprises: a cover that has an entrance to receive the seeds and an exit to supply the seeds; a dosing drum rotatably mounted on the cover, the drum is provided with a plurality of radially extending grooves which extend through the drum and between which a plurality of seed receiving valleys are located, the drum and cover define a space; a divider comb mounted on the cover and which divides the space formed between the drum and the cover in a seed spout space and in a seed receiving space, the seed receiving space is in communication with the entrance of the cover and the space seed spout in communication with the outlet of the cover; Y a seed comb mounted on the cover to hold the seeds in the seed receiving valleys, so that when the drum is turned on the cover the seeds are trapped in the seed receiving valleys and pass from the seed receiving space to the seed spout space where it is released by the retention comb and passes through the outlet.
2. A seed doser as claimed in clause 1, characterized in that the metering drum is provided with angled grooves.
3. A seed doser as claimed in clause 2, characterized in that the seed dispenser is provided with a seed spout side that rotates through both the seed receiving space and the seed spout space, the side splines seed dispenser drum dispenser being provided with the fingers that extend outward forming the receiving bags, so that the seeds that are to be stocked are kept in these bags by the retention comb.
4. A seed doser as claimed in clause 3, characterized in that the splitter comb has teeth extending into the seed receiving valleys of the dosing drum.
5. A seed proportioner as claimed in clause 4, further characterized in that it comprises a sealing comb located on one side of the divider comb and the outlet to prevent the seeds from entering the outlet prematurely.
6. A seed doser as claimed in clause 5, characterized in that a part of the divider comb is tapered to drive the seeds out of the seed spout side of the dosing drum.
7. A seed dispenser as claimed in clause 6, characterized in that a flow regulating comb is mounted on the cover on one side of the tapered portion of the splitting comb to more evenly load the seed receiving valleys.
8. A seed dispenser as claimed in clause 6, characterized in that the cover is provided with a relief space immediately downstream of the outlet.
9. A seed doser for seed doser for a piece of seeding equipment, the seed dispenser comprises: a cover that has an entrance to receive seeds and an outlet to supply seeds; a dosing drum rotatably mounted on the cover, the drum is provided with a plurality of radially extending grooves which extend through the drum and between which a series of seed receiving valleys are located, the drum and cover define a space; a flexible insulator to divide the space formed by the dosing drum and the cover inside a receiving space and a seed spout space, the seed receiving space being in communication with the entrance to the cover and the seed spout space being in communication with the exit of the cover; Y a means of retention to hold the seeds in the seed receiving valleys, so that when the drum is turned on the cover the seed is trapped in the seed receiving valleys and pass from the seed receiving space to the seed spreading space through the flexible insulating means where it is released by the means of support and passes through the exit.
10. A seed dispenser as claimed in clause 9, characterized in that the dosing drum is provided with angled grooves.
11. A seed doser as claimed in clause 10, characterized in that the dosing drum is provided with a seed metering side that rotates through both the seed receiving space and the seed spout space, the splines on the side dispenser drum seed spout being provided with the outwardly extending fingers forming the seed receiving bags, whereby the seeds to be stocked are held in these bags by the holding means.
12. A seed doser as claimed in clause 11, characterized in that the flexible isolator is mounted on the cover and extends into the seed receiving valleys of the dosing drum.
13. A seed doser for dosing seeds for a piece of seeding equipment, said seed doser comprises: a cover that has an entrance to receive the seeds and an exit to supply seeds; a flexible isolator for dividing the cover into a seed receiving space by being in communication with the inlet and a seed spout space in communication with the outlet; and removable fastening means for releasably securing the flexible insulator to the cover, the releasable fastener comprises a hook and loop fastener assembly.
14. A seed dispenser as claimed in clause 13, characterized in that the flexible insulating means comprise a divider comb.
15. A seed doser as claimed in clause 14, characterized in that it comprises a dosing drum that is being rotatably mounted on the cover and the seed receiving space and the seed spout space defined by the flexible isolator means which are located between the dosing drum and the cover. SUMMARY The invention is directed to a simple mechanical seed metering device having a cover that is provided with the holding and dividing combs in which a metering drum is rotated. The dosing drum is provided with angled grooves which define the seed receiving valleys. One side of the drum is the spout side and the splines on that side are provided with upwardly extending fingers which define individual seed bags. Seed bags carry seeds singled out from the seed-receiving space defined by the divider comb to the seed spout space where they are released at the outlet of the cover. The combs are secured to the cover by a hook and loop fastener assembly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/510,447 US5549060A (en) | 1995-08-02 | 1995-08-02 | Mechanical seed meter |
| US08510447 | 1995-08-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MXPA96003098A true MXPA96003098A (en) | 1998-04-01 |
| MX9603098A MX9603098A (en) | 1998-04-30 |
Family
ID=24030769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX9603098A MX9603098A (en) | 1995-08-02 | 1996-07-30 | A mechanical seed meter. |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5549060A (en) |
| EP (1) | EP0756812B1 (en) |
| AR (1) | AR003070A1 (en) |
| AU (1) | AU695435B2 (en) |
| BR (1) | BR9603264A (en) |
| CA (1) | CA2175408C (en) |
| DE (1) | DE59601364D1 (en) |
| MX (1) | MX9603098A (en) |
| ZA (1) | ZA966547B (en) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6109193A (en) * | 1995-12-29 | 2000-08-29 | Case Corporation | Seed planter apparatus and method |
| US6564730B2 (en) | 1995-12-29 | 2003-05-20 | Case Corporation | Seed planter apparatus and method |
| US5784985A (en) * | 1996-03-04 | 1998-07-28 | Deere & Company | Mechanical seed meter |
| AU718863B2 (en) * | 1997-01-24 | 2000-04-20 | Deere & Company | A mechanical seed meter |
| US5855303A (en) * | 1997-08-18 | 1999-01-05 | Deere & Company | Wear insert for metering system |
| US5826523A (en) * | 1997-08-18 | 1998-10-27 | Deere & Company | Brush for air seeder metering system |
| US6044779A (en) * | 1998-04-15 | 2000-04-04 | Case Corporation | Multiple drop seed disc |
| US6186083B1 (en) * | 1999-03-05 | 2001-02-13 | Remo's Mushroom Services, Inc. | Digger for facilitating the application of a material to a mushroom bed |
| CN1461185A (en) | 2000-09-28 | 2003-12-10 | 诺埃尔·D·伦普里尔 | Seed metering device |
| CA2616239C (en) * | 2006-12-21 | 2015-11-17 | One Pass Implements Inc. | Variable displacement meter roller |
| CN100998281B (en) * | 2006-12-23 | 2010-09-08 | 山西农业大学 | Multiple-head, special-shaped and spiral cell type intensive seeding apparatus for small-sized seeds |
| WO2011017252A1 (en) * | 2009-08-03 | 2011-02-10 | Bayer Cropscience Lp | Seed treatment apparatus |
| US8671857B2 (en) | 2011-03-10 | 2014-03-18 | Cnh Canada, Ltd. | Variable geometry meter roller |
| CA2904286C (en) | 2014-11-04 | 2021-10-19 | Cnh Industrial Canada, Ltd. | Ringed meter rollers and slide cutoff system |
| CA2903633C (en) | 2014-11-04 | 2020-11-24 | Cnh Industrial Canada, Ltd. | Ringed meter rollers and slide cutoff system |
| CN106385883B (en) * | 2015-08-03 | 2022-03-08 | 迪尔公司 | Seed sowing device |
| WO2017040533A1 (en) | 2015-08-31 | 2017-03-09 | Precision Planting Llc | Systems, methods, and apparatus for multi-row agricultural implement control and monitoring |
| US9801330B2 (en) * | 2015-11-04 | 2017-10-31 | Cnh Industrial Canada, Ltd. | Meter roller cartridge frame for an agricultural metering system |
| IL244872B (en) | 2016-04-03 | 2022-03-01 | Treitel Chemical Eng Ltd | Apparatus and method for dosaging powdered or granulated material |
| FR3050607B1 (en) * | 2016-04-28 | 2018-11-30 | Sulky Burel | SEEDER EQUIPPED WITH A DEVICE FOR REGULATING THE DISTRIBUTION OF SEEDS, AND CORRESPONDING REGULATION DEVICE |
| FR3050608B1 (en) * | 2016-04-28 | 2018-11-16 | Sulky Burel | DEVICE FOR REGULATING THE DISTRIBUTION OF SEEDS FOR A SEEDER, AND CORRESPONDING SEEDER. |
| US10085376B1 (en) | 2017-03-09 | 2018-10-02 | Cnh Industrial Canada, Ltd. | Meter roller for an agricultural metering system |
| US10149429B2 (en) | 2017-03-09 | 2018-12-11 | Cnh Industrial Canada, Ltd. | Meter roller for an agricultural metering system |
| USD816726S1 (en) | 2017-03-09 | 2018-05-01 | Cnh Industrial Canada, Ltd. | Meter roller for an agricultural metering system |
| US10405485B2 (en) | 2017-03-09 | 2019-09-10 | Cnh Industrial Canada, Ltd. | Meter roller for an agricultural metering system |
| US10292324B2 (en) | 2017-03-10 | 2019-05-21 | Cnh Industrial Canada, Ltd. | Meter roller for an agricultural metering system |
| USD815157S1 (en) | 2017-03-10 | 2018-04-10 | Cnh Industrial Canada, Ltd. | Meter roller for an agricultural metering system |
| USD815156S1 (en) | 2017-03-10 | 2018-04-10 | Cnh Industrial Canada, Ltd. | Meter roller for an agricultural metering system |
| US10390479B2 (en) | 2017-03-14 | 2019-08-27 | Cnh Industrial Canada, Ltd. | Flow control insert for an agricultural metering system |
| US10362727B2 (en) | 2017-03-14 | 2019-07-30 | Cnh Industrial Canada, Ltd. | Flow control insert for an agricultural metering system |
| FR3072855B1 (en) * | 2017-10-27 | 2019-12-20 | Sulky Burel | DEVICE FOR REGULATING THE SEED DISTRIBUTION FOR A SEEDER, AND CORRESPONDING SEEDER. |
| CN110199627B (en) * | 2019-07-01 | 2021-07-02 | 吉林大学 | Air-suction type seed sowing device with flow dividing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB583100A (en) * | 1944-06-12 | 1946-12-09 | Graham John Webster | Improvements in or relating to seed sowing apparatus |
| GB677842A (en) * | 1949-05-30 | 1952-08-20 | E V Twose Ltd | Improvements relating to seed drills |
| US3048132A (en) * | 1959-10-12 | 1962-08-07 | John F Morgan | Seed pellet dispenser and planter |
| US3489321A (en) * | 1966-03-30 | 1970-01-13 | John D Kirschmann | Feeding mechanism for seed |
| DE1511861A1 (en) * | 1966-05-13 | 1969-10-16 | Zelezarny Antonia Zapotockeho | Device for counting and dosing of preferably rod-shaped objects with cross-sectional shapes that favor the rolling of the objects, for example welding electrodes |
| US3486659A (en) * | 1967-10-30 | 1969-12-30 | Massey Ferguson Inc | Shelled peanut planting apparatus |
| US3552601A (en) * | 1968-04-12 | 1971-01-05 | Deere & Co | Seed selecting mechanism |
| US3763797A (en) * | 1971-07-14 | 1973-10-09 | Us Agriculture | Row seeder |
| GB1591794A (en) * | 1976-10-28 | 1981-06-24 | Rota Spoon Ltd | Seed dispensing device |
| EP0023803A1 (en) * | 1979-07-26 | 1981-02-11 | David William Thomas | Seed drill apparatus |
| US4282985A (en) * | 1980-01-21 | 1981-08-11 | Ray Yamamoto | Seed plate |
| USRE32067E (en) * | 1980-02-12 | 1986-01-21 | Universal lawn spreader attachment for lawn mowers | |
| SU1102502A1 (en) * | 1980-05-05 | 1984-07-15 | Kuzmenko Viktor F | Seed-feeding mechanism |
| US4450979A (en) * | 1980-08-15 | 1984-05-29 | White Farm Equipment Company | Seed metering means |
| DE3238435C1 (en) * | 1982-10-16 | 1984-04-26 | H. Fähse & Co, 5160 Düren | Separating element for pneumatic single grain sow machines |
| US5170909A (en) * | 1983-10-31 | 1992-12-15 | Deere & Company | Vacuum seed meter |
| FR2562755B1 (en) * | 1984-04-13 | 1986-11-07 | Soderma | SEED SEEDER IN POQUETS |
| US4609131A (en) * | 1984-06-11 | 1986-09-02 | Tieben James B | Seed dispensing device |
| US5027725A (en) * | 1989-04-13 | 1991-07-02 | Keeton Eugene G | Seed dispenser for planters |
| US4924786A (en) * | 1989-06-14 | 1990-05-15 | Keeton Eugene G | Seed dispenser with dual-faced seed plate |
| US4995327A (en) * | 1990-02-05 | 1991-02-26 | Jeffers Sr Walter L | Seed planting apparatus |
| US4991522A (en) * | 1990-02-26 | 1991-02-12 | Alexander Matthew O | Agricultural planter and cover apparatus |
| US5058766A (en) * | 1990-05-25 | 1991-10-22 | Kinze Manufacturing, Inc. | Seed meter for row crop planter unit |
-
1995
- 1995-08-02 US US08/510,447 patent/US5549060A/en not_active Expired - Lifetime
-
1996
- 1996-04-30 CA CA002175408A patent/CA2175408C/en not_active Expired - Fee Related
- 1996-07-09 AU AU59419/96A patent/AU695435B2/en not_active Ceased
- 1996-07-22 DE DE59601364T patent/DE59601364D1/en not_active Expired - Fee Related
- 1996-07-22 EP EP96111761A patent/EP0756812B1/en not_active Expired - Lifetime
- 1996-07-29 AR ARP960103790A patent/AR003070A1/en unknown
- 1996-07-30 MX MX9603098A patent/MX9603098A/en not_active IP Right Cessation
- 1996-08-01 ZA ZA9606547A patent/ZA966547B/en unknown
- 1996-08-02 BR BR9603264A patent/BR9603264A/en not_active IP Right Cessation
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