CA2111611C - Seed centering distribution system - Google Patents
Seed centering distribution systemInfo
- Publication number
- CA2111611C CA2111611C CA002111611A CA2111611A CA2111611C CA 2111611 C CA2111611 C CA 2111611C CA 002111611 A CA002111611 A CA 002111611A CA 2111611 A CA2111611 A CA 2111611A CA 2111611 C CA2111611 C CA 2111611C
- Authority
- CA
- Canada
- Prior art keywords
- seed
- tube
- fertilizer
- conveyance
- granular herbicide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/04—Single-grain seeders with or without suction devices
- A01C7/042—Single-grain seeders with or without suction devices using pneumatic means
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
- A01C7/081—Seeders depositing seeds in rows using pneumatic means
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
- A01C7/081—Seeders depositing seeds in rows using pneumatic means
- A01C7/082—Ducts, distribution pipes or details thereof for pneumatic seeders
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
- A01C7/081—Seeders depositing seeds in rows using pneumatic means
- A01C7/084—Pneumatic distribution heads for seeders
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
- A01C7/206—Seed pipes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
Abstract
For use with an air seeder for distribution of seed to a agricultural implement by pneumatic conveyance is a unique seed-centering and distribution system. The primary conveyance tube which is adapted to receive metered amounts of fertilizer and/or seed or granular herbicide is equipped with a plurality of internal sloped annular rings as well as a series of internal baffles. The internal baffles are particularly adapted for dividing the seed stream through a right angled turn from the horizontal to the vertical. The sloped annular rings project further into the conveyance tube on their downstream side than on the upstream side.
Interestingly enough, it has been found that much less power is required to center and evenly distribute the seed with this device than the prior art devices. Moreover, damage to delicate seed is greatly reduced.
Interestingly enough, it has been found that much less power is required to center and evenly distribute the seed with this device than the prior art devices. Moreover, damage to delicate seed is greatly reduced.
Description
SEED CENTERING DISTRIBUTION DEVICE
Field of the Invention This invention relates to pneumatic seed and fertillzer distribution devices in agricultural implements.
More particularly, this invention relates to a device for efficiently and uniformly distributing and centering seed and/or fertilizer or granular herbicide for entry into a primary distribution manifold.
Background Modern farming techniques call for the pneumatic conveying of seed, fertillzer and granular herbicide from a bin supported by a wheeled cart, commonly called an air seeder, to seed lines located on a tillage tool, and finally to the soil. A centrifugal blower, located on a prlmary distribution line, is primarlly used to pneumatically convey metered seed and fertilizer. Generally the primary distribution tube distributes the seed and fertilizer to a primary manifold whlch then in turn sends the seed and fertilizer to secondary seed distribution manifolds which in turn distrlbute the seed and fertilizer to tertiary seed lines and seed boots located on the knlves or sweeps of the tillage tool.
The problem whlch has exlsted ln the art since its conception is uneven distrlbution of seed. To produce a uniform crop, which will maximize yield probability, seed must be evenly distributed across the wldth of a seed distribution implement.
~, ,.'~4 To counter this problem, a number of conflguratlons or arrangements for the prlmary seed dlstrlbutlon conveyance tube have been used. Most, however, requlre heavy turbulence to mlx and dlstrlbute the seed and/or fertlllzer or granular herblclde. Thls heavy turbulence, unfortunately, requlres a great deal of power from the blower used to pneumatlcally move the seed along.
In addltion, a second serious problem exlsts wlth heavy turbulence of the seed, namely damage to seeds whlch are delicate or fragile, such as lentlls, peas and canola.
One such apparatus whlch was lnvented to center and evenly dlstribute seed ls dlsclosed and clalmed ln Canadlan Patent No. 1,167,704 and lts U.S. counterparts USP 4,575,284 and USP 4,685,843 - lssued to Kelm. The lnvention dlsclosed ln these patents is a seed dlstrlbution apparatus for centering the seed whlch uses concentrlc annular rolls of dlmpled projectlons, each row belng offset from each ad~acent row. Inwardly dlrected rounded pro~ectlons center the granular materlal belng conveyed by the conduit. The proiectlons attempt to center the dlrection of the blown granular material into the primary distribution head. Since heavy turbulence ls necessary, damaged seed and large amounts of power needed to effect the distribution are drawbacks of this invention.
In Canadian patent 1,170,918, lssued to Symonds for ~lr Flow Seeders, the primary condult lncludes, between the particulate materlal lnlet and a prlmary dlstrlbutlon location across the lower face of the conduit, a flrst deflectlng veln ., ,~
21 1 161 ~
which deflects seed upwardly and a second deflecting vein which deflects seed downwardly. Each vein ls adiustable about a substantlally vertlcal axls preferably from the outslde of the tube. There is also a plurality of vertlcally oriented veins used to divide the seed into a number of dlstrlbutlon channels. One of the problems wlth thls second lnventlon is that it is not adapted to center the seed as it travels a horizontally disposed distribution tube to a vertlcally disposed portion of the distribution tube.
It is an ob~ect of the present lnventlon to provlde a seed centerlng and dlstrlbution device which uses much less energy to distribute the seed and/or fertilizer or granular herbicide. As a result there is less turbulence and less damage to the seed.
It is a further ob~ect of the present invention to provide a device for moving the seed along a horizontally disposed distribution tube up through a vertically disposed distrlbution tube to a primary distribution manifold while keeping the seed/fertilizer centered at all times.
The present invention comprlses a centerlng system which is provided by a primary conveyance pipe with a plurality of centering rings and a centrally located baffle or vein. The baffle or vein divides the seed stream as it moves about a 90~ angle. The centering rlngs are annular and sloped. The width of these rlngs on the downstream slde is thicker than the width of the rings on thelr upstream sides.
In longitudinal cross section the rings slope inwardly at the downstream slde, thereby moving the seed, in operation, from ~A
the sides of the circular conveyance pipe to the center of the conveyance pipe. Generally, one or more rings are placed upstream of the centrally located angular baffle and two or more rings are placed on the downstream side of the centrally located annular baffle. Thus, when the seed finally moves vertically towards the prlmary manlfold, lt reaches the manifold at the center of the pipe and is deflected equally throughout the secondary distrlbution llnes.
Therefore, this invention seeks to provlde a conveyance devlce for use with agrlculture pneumatic seedlng lmplements, and belng adapted to evenly distribute seed and/or fertilizer or granular herbicide to the soil, comprislng: a prlmary hollow conveyance tube; sald tube including a generally horizontally disposed elongate first portion; said flrst portlon belng downstream of and ln open communlcatlon with a discharge tube of an air seeder; said discharge tube being adapted to receive predetermined amounts of seed and/or fertilizer or granular herbicide from said air seeder; said seed and/or fertilizer or granular herbicide being pneumatically conveyed out of sald discharge tube to sald flrst portlon by a blower means located at the opposite end of said discharge tube; said prlmary hollow conveyance tube further including a transitlonal second portion and a generally uprl~ht thlrd portlon sa~d second and sald thlrd portions being downstream of said first portion; and said third portion being in open communication with a primary distribution manifold; said primary hollow conveyance tube havlng disposed withln itself at least one sloped centering ~A
Field of the Invention This invention relates to pneumatic seed and fertillzer distribution devices in agricultural implements.
More particularly, this invention relates to a device for efficiently and uniformly distributing and centering seed and/or fertilizer or granular herbicide for entry into a primary distribution manifold.
Background Modern farming techniques call for the pneumatic conveying of seed, fertillzer and granular herbicide from a bin supported by a wheeled cart, commonly called an air seeder, to seed lines located on a tillage tool, and finally to the soil. A centrifugal blower, located on a prlmary distribution line, is primarlly used to pneumatically convey metered seed and fertilizer. Generally the primary distribution tube distributes the seed and fertilizer to a primary manifold whlch then in turn sends the seed and fertilizer to secondary seed distribution manifolds which in turn distrlbute the seed and fertilizer to tertiary seed lines and seed boots located on the knlves or sweeps of the tillage tool.
The problem whlch has exlsted ln the art since its conception is uneven distrlbution of seed. To produce a uniform crop, which will maximize yield probability, seed must be evenly distributed across the wldth of a seed distribution implement.
~, ,.'~4 To counter this problem, a number of conflguratlons or arrangements for the prlmary seed dlstrlbutlon conveyance tube have been used. Most, however, requlre heavy turbulence to mlx and dlstrlbute the seed and/or fertlllzer or granular herblclde. Thls heavy turbulence, unfortunately, requlres a great deal of power from the blower used to pneumatlcally move the seed along.
In addltion, a second serious problem exlsts wlth heavy turbulence of the seed, namely damage to seeds whlch are delicate or fragile, such as lentlls, peas and canola.
One such apparatus whlch was lnvented to center and evenly dlstribute seed ls dlsclosed and clalmed ln Canadlan Patent No. 1,167,704 and lts U.S. counterparts USP 4,575,284 and USP 4,685,843 - lssued to Kelm. The lnvention dlsclosed ln these patents is a seed dlstrlbution apparatus for centering the seed whlch uses concentrlc annular rolls of dlmpled projectlons, each row belng offset from each ad~acent row. Inwardly dlrected rounded pro~ectlons center the granular materlal belng conveyed by the conduit. The proiectlons attempt to center the dlrection of the blown granular material into the primary distribution head. Since heavy turbulence ls necessary, damaged seed and large amounts of power needed to effect the distribution are drawbacks of this invention.
In Canadian patent 1,170,918, lssued to Symonds for ~lr Flow Seeders, the primary condult lncludes, between the particulate materlal lnlet and a prlmary dlstrlbutlon location across the lower face of the conduit, a flrst deflectlng veln ., ,~
21 1 161 ~
which deflects seed upwardly and a second deflecting vein which deflects seed downwardly. Each vein ls adiustable about a substantlally vertlcal axls preferably from the outslde of the tube. There is also a plurality of vertlcally oriented veins used to divide the seed into a number of dlstrlbutlon channels. One of the problems wlth thls second lnventlon is that it is not adapted to center the seed as it travels a horizontally disposed distribution tube to a vertlcally disposed portion of the distribution tube.
It is an ob~ect of the present lnventlon to provlde a seed centerlng and dlstrlbution device which uses much less energy to distribute the seed and/or fertilizer or granular herbicide. As a result there is less turbulence and less damage to the seed.
It is a further ob~ect of the present invention to provide a device for moving the seed along a horizontally disposed distribution tube up through a vertically disposed distrlbution tube to a primary distribution manifold while keeping the seed/fertilizer centered at all times.
The present invention comprlses a centerlng system which is provided by a primary conveyance pipe with a plurality of centering rings and a centrally located baffle or vein. The baffle or vein divides the seed stream as it moves about a 90~ angle. The centering rlngs are annular and sloped. The width of these rlngs on the downstream slde is thicker than the width of the rings on thelr upstream sides.
In longitudinal cross section the rings slope inwardly at the downstream slde, thereby moving the seed, in operation, from ~A
the sides of the circular conveyance pipe to the center of the conveyance pipe. Generally, one or more rings are placed upstream of the centrally located angular baffle and two or more rings are placed on the downstream side of the centrally located annular baffle. Thus, when the seed finally moves vertically towards the prlmary manlfold, lt reaches the manifold at the center of the pipe and is deflected equally throughout the secondary distrlbution llnes.
Therefore, this invention seeks to provlde a conveyance devlce for use with agrlculture pneumatic seedlng lmplements, and belng adapted to evenly distribute seed and/or fertilizer or granular herbicide to the soil, comprislng: a prlmary hollow conveyance tube; sald tube including a generally horizontally disposed elongate first portion; said flrst portlon belng downstream of and ln open communlcatlon with a discharge tube of an air seeder; said discharge tube being adapted to receive predetermined amounts of seed and/or fertilizer or granular herbicide from said air seeder; said seed and/or fertilizer or granular herbicide being pneumatically conveyed out of sald discharge tube to sald flrst portlon by a blower means located at the opposite end of said discharge tube; said prlmary hollow conveyance tube further including a transitlonal second portion and a generally uprl~ht thlrd portlon sa~d second and sald thlrd portions being downstream of said first portion; and said third portion being in open communication with a primary distribution manifold; said primary hollow conveyance tube havlng disposed withln itself at least one sloped centering ~A
ring; said centering ring pro~ectlng inwardly to an increasing extent from its upstream side to its downstream side such that in operatlon when seed and/or fertilizer or granular herbicide is pneumatically conveyed through said conveyance tube, said seed and~or fertilizer or granular herbicide, upon contact with said upstream side of said centering ring is directed towards the center of said tube.
The invention also seeks to provide a seed and/or fertilizer or granular herbicide centering and distributlon device for use with agricultural implements including: a distribution tube, including an upright section, for pneumatically conveying said seed and/or fertilizer or granular herbicide; said tube includlng at least one lnner annular sloped pro~ectlon; sald pro~ection being of a width such that a downstream edge of sald proiectlon extends further towards the center of sald tube than an upstream edge of said projection.
The invention can be more particularly described in conjunction with the following drawings wherein:
Figure 1 is a side view of a cultivator equipped with seed lines and belng hitched to a standard air seeder;
Flgure 2 ls a longltudinal cross section of the primary distrlbutlon plpe; and Figure 3 is a detailed view of a portion of Figure 2 marked as III.
In Figure 1 an air seeder shown generally as 1 is equipped with a fertllizer bin 2a and a seed bin 2b.
Fertilizer and seed are metered to a primary distribution tube i~4 3 by means of known metering augers shown as 4. These metering augers 4 are located at the ~unction of the bottom of the seed and/or fertilizer or granular herbicide bins 2a and 2b, and the primary conveyance tube 3. Seed and/or fertillzer or granular herbiclde are mlxed and conveyed forwardly by means of a centrlfugal blower 5 which is located to the rear of prlmary conveyance tube 3. Prlmary conveyance tube 3 ls made up of a horlzontally dlsposed portlon 6, an obllque angled transitional portion 6a, and a vertically disposed portlon 7. After the seed ls blown downstream through sections 6, 6a, and 7 of tube 3, lt enters the prlmary dlstrlbutlon manlfold 8, from whence lt ls distrlbuted to a plurality of manifold tubes 9, and then into secondary dlstrlbution tubes 10.
From the secondary distribution tubes 10, the seed follows through a right-angled course through right angled elbows 11 to secondary manlfolds 12. Thereafter, the seed ls evenly dlvlded lnto a plurality of tertiary seed distrlbutlon tubes 13 to seed boots 14 where lt ls then blown lnto a furrow created by knlfe or sweep 15 on a cultlvator or another soll working implement.
Prlmary seed and/or fertllizer or granular herbiclde dlstrlbutlon tube 3 has a flexible ~oint 16 whlch ls generally made of a fle~ible rubber couplln~. This coupling i~
necessary to allow bendlng of seed dlstrlbutlon tube 3 when the cultlvator and alr seeder turn around a corner or are movlng over uneven ground. To the rear of the cultivator is a hltch 17 whlch ls coupled to a front hitch 18 of the alr seeder. Generally the connection between the two hitches is immedlately below the flexible ~oint 16 of primary distribution tube 3.
As seen in greater detail in Figures 2 and 3, the primary dlstrlbutlon tube 3 with lts horizontally dlsposed section 6 and vertically disposed section 7 is equipped with a plurality of annular sloped rlngs l9a, l9b and l9c. These rlngs are adapted to move the seed 27 and fertilizer 28 lnto the middle of the tube 3. As partlcularly shown ln Flgure 3, sloped annular rlng l9a, as well as rings l9b and l9c, are located on the inner walls 23 of conveyance tube 3. The downstream portion 25 of annular rlngs l9a, l9b and l9c is thlcker, i.e. it proiects further inwardly into the conveyance tube 3 than the upstream portion shown as 26.
One notes that the thlckness of the sloped ring l9a at the upstream edge 26 is very small. In fact, if the inside diameter of the sloped ring l9a at lts upstream edge 26 is compared to the inside diameter of the hollow conveyance tube 3, one would find that the former inside diameter is the same as, or slightly less than, the latter lnslde dlameter of the tube 3.
Also ln Figure 3 one notes that the downstream edge 25 is at a right angle to the inner walls 23 of hollow ~onveyance tube 3, that ls to say, perpendlcular to the longltudlnal axls of tube 3.
Thus, the airflow is directed inwardly towards the center of the conveyance tube 3 in order to centrallze the seed and/or fertlllzer 27,28.
As a further measure for evenly distributing seed andtor fertilizer or granular herbicide, a centralized baffle ls located withln tubes 6 and 7. It is comprised of a horlzontal portlon 20, an obllque portlon 21 and a vertical portion 22. Thus, the seed is moved from a horizontal dlrectlon to a vertical dlrectlon in a split stream such that approximately even amounts of seed and/or fertilizer or granular herbicide are on each side of the baffle.
Thereafter, sloped centering rlngs l9b and l9c centrallze the seed such that lt is evenly dlstrlbuted when enterlng manlfold 8 prior to being conveyed through manifold distribution tubes 9. Flnally, as shown in greater detall in Figure 2, a coupling hitch pin 24 is used to connect the air seeder hitch 18 to the cultivator hltch 17.
Although a preferred embodlment of the invention has been shown, any comblnatlon of sloped annular rlngs and baffles is contemplated by the lnventlon and ls within the splrlt of the lnventlon.
th 72061-43
The invention also seeks to provide a seed and/or fertilizer or granular herbicide centering and distributlon device for use with agricultural implements including: a distribution tube, including an upright section, for pneumatically conveying said seed and/or fertilizer or granular herbicide; said tube includlng at least one lnner annular sloped pro~ectlon; sald pro~ection being of a width such that a downstream edge of sald proiectlon extends further towards the center of sald tube than an upstream edge of said projection.
The invention can be more particularly described in conjunction with the following drawings wherein:
Figure 1 is a side view of a cultivator equipped with seed lines and belng hitched to a standard air seeder;
Flgure 2 ls a longltudinal cross section of the primary distrlbutlon plpe; and Figure 3 is a detailed view of a portion of Figure 2 marked as III.
In Figure 1 an air seeder shown generally as 1 is equipped with a fertllizer bin 2a and a seed bin 2b.
Fertilizer and seed are metered to a primary distribution tube i~4 3 by means of known metering augers shown as 4. These metering augers 4 are located at the ~unction of the bottom of the seed and/or fertilizer or granular herbicide bins 2a and 2b, and the primary conveyance tube 3. Seed and/or fertillzer or granular herbiclde are mlxed and conveyed forwardly by means of a centrlfugal blower 5 which is located to the rear of prlmary conveyance tube 3. Prlmary conveyance tube 3 ls made up of a horlzontally dlsposed portlon 6, an obllque angled transitional portion 6a, and a vertically disposed portlon 7. After the seed ls blown downstream through sections 6, 6a, and 7 of tube 3, lt enters the prlmary dlstrlbutlon manlfold 8, from whence lt ls distrlbuted to a plurality of manifold tubes 9, and then into secondary dlstrlbution tubes 10.
From the secondary distribution tubes 10, the seed follows through a right-angled course through right angled elbows 11 to secondary manlfolds 12. Thereafter, the seed ls evenly dlvlded lnto a plurality of tertiary seed distrlbutlon tubes 13 to seed boots 14 where lt ls then blown lnto a furrow created by knlfe or sweep 15 on a cultlvator or another soll working implement.
Prlmary seed and/or fertllizer or granular herbiclde dlstrlbutlon tube 3 has a flexible ~oint 16 whlch ls generally made of a fle~ible rubber couplln~. This coupling i~
necessary to allow bendlng of seed dlstrlbutlon tube 3 when the cultlvator and alr seeder turn around a corner or are movlng over uneven ground. To the rear of the cultivator is a hltch 17 whlch ls coupled to a front hitch 18 of the alr seeder. Generally the connection between the two hitches is immedlately below the flexible ~oint 16 of primary distribution tube 3.
As seen in greater detail in Figures 2 and 3, the primary dlstrlbutlon tube 3 with lts horizontally dlsposed section 6 and vertically disposed section 7 is equipped with a plurality of annular sloped rlngs l9a, l9b and l9c. These rlngs are adapted to move the seed 27 and fertilizer 28 lnto the middle of the tube 3. As partlcularly shown ln Flgure 3, sloped annular rlng l9a, as well as rings l9b and l9c, are located on the inner walls 23 of conveyance tube 3. The downstream portion 25 of annular rlngs l9a, l9b and l9c is thlcker, i.e. it proiects further inwardly into the conveyance tube 3 than the upstream portion shown as 26.
One notes that the thlckness of the sloped ring l9a at the upstream edge 26 is very small. In fact, if the inside diameter of the sloped ring l9a at lts upstream edge 26 is compared to the inside diameter of the hollow conveyance tube 3, one would find that the former inside diameter is the same as, or slightly less than, the latter lnslde dlameter of the tube 3.
Also ln Figure 3 one notes that the downstream edge 25 is at a right angle to the inner walls 23 of hollow ~onveyance tube 3, that ls to say, perpendlcular to the longltudlnal axls of tube 3.
Thus, the airflow is directed inwardly towards the center of the conveyance tube 3 in order to centrallze the seed and/or fertlllzer 27,28.
As a further measure for evenly distributing seed andtor fertilizer or granular herbicide, a centralized baffle ls located withln tubes 6 and 7. It is comprised of a horlzontal portlon 20, an obllque portlon 21 and a vertical portion 22. Thus, the seed is moved from a horizontal dlrectlon to a vertical dlrectlon in a split stream such that approximately even amounts of seed and/or fertilizer or granular herbicide are on each side of the baffle.
Thereafter, sloped centering rlngs l9b and l9c centrallze the seed such that lt is evenly dlstrlbuted when enterlng manlfold 8 prior to being conveyed through manifold distribution tubes 9. Flnally, as shown in greater detall in Figure 2, a coupling hitch pin 24 is used to connect the air seeder hitch 18 to the cultivator hltch 17.
Although a preferred embodlment of the invention has been shown, any comblnatlon of sloped annular rlngs and baffles is contemplated by the lnventlon and ls within the splrlt of the lnventlon.
th 72061-43
Claims (8)
1. A conveyance device for use with agriculture pneumatic seeding implements, and being adapted to evenly distribute seed and/or fertilizer or granular herbicide to the soil, comprising:
a primary hollow conveyance tube;
said tube including a generally horizontally disposed elongate first portion;
said first portion being downstream of and in open communication with a discharge tube of an air seeder;
said discharge tube being adapted to receive predetermined amounts of seed and/or fertilizer or granular herbicide from said air seeder;
said seed and/or fertilizer or granular herbicide being pneumatically conveyed out of said discharge tube to said first portion by a blower means located at the opposite end of said discharge tube;
said primary hollow conveyance tube further including a transitional second portion and a generally upright third portion;
said second and said third portions being downstream of said first portion; and said third portion being in open communication with a primary distribution manifold;
said primary hollow conveyance tube having disposed within itself at least one sloped centering ring;
said centering ring projecting inwardly to an increasing extent from its upstream side to its downstream side such that in operation when seed and/or fertilizer or granular herbicide is pneumatically conveyed through said conveyance tube, said seed and/or fertilizer or granular herbicide, upon contact with said upstream side of said centering ring is directed towards the center of said tube.
a primary hollow conveyance tube;
said tube including a generally horizontally disposed elongate first portion;
said first portion being downstream of and in open communication with a discharge tube of an air seeder;
said discharge tube being adapted to receive predetermined amounts of seed and/or fertilizer or granular herbicide from said air seeder;
said seed and/or fertilizer or granular herbicide being pneumatically conveyed out of said discharge tube to said first portion by a blower means located at the opposite end of said discharge tube;
said primary hollow conveyance tube further including a transitional second portion and a generally upright third portion;
said second and said third portions being downstream of said first portion; and said third portion being in open communication with a primary distribution manifold;
said primary hollow conveyance tube having disposed within itself at least one sloped centering ring;
said centering ring projecting inwardly to an increasing extent from its upstream side to its downstream side such that in operation when seed and/or fertilizer or granular herbicide is pneumatically conveyed through said conveyance tube, said seed and/or fertilizer or granular herbicide, upon contact with said upstream side of said centering ring is directed towards the center of said tube.
2. A device as claimed in claim 1 wherein said first and third portions of said primary conveyance tube include a plurality of said centering rings.
3. A device as claimed in claim 1 or 2, wherein said second transitional portion of said primary conveyance tube is divided into an upper and lower portion by a centrally disposed elongate planar baffle means.
4. A device as claimed in claim 3 wherein a downstream portion of said first portion of said tube and an upstream portion of said third portion of said tube each include a centrally disposed elongate planar baffle means;
said baffle means being fixedly connected with said baffle means of said second portion, such that in operation, when said seed and/or fertilizer or granular herbicide is pneumatically conveyed through said primary conveyance tube, a stream of seed and/or fertilizer or granular herbicide is spilt into two substantially equal portions such that when said seed and/or fertilizer or granular herbicide enter said generally upright third portion it is substantially evenly distributed throughout the diameter of said tube.
said baffle means being fixedly connected with said baffle means of said second portion, such that in operation, when said seed and/or fertilizer or granular herbicide is pneumatically conveyed through said primary conveyance tube, a stream of seed and/or fertilizer or granular herbicide is spilt into two substantially equal portions such that when said seed and/or fertilizer or granular herbicide enter said generally upright third portion it is substantially evenly distributed throughout the diameter of said tube.
5. A seed and/or fertilizer or granular herbicide centering and distribution device for use with agricultural implements including, a conveyance tube, including a horizontally disposed first portion, an obliquely disposed transitional second portion, and a third upright portion, for pneumatically conveying said seed and/or fertilizer or granular herbicide;
a means to pneumatically move said seed and/or fertilizer from an air seeder through said tube to a distribution manifold;
said tube including at least one inner annular sloped ring projection;
said projection being of a width such that a downstream edge of said projection extends further towards the center of said tube than an upstream edge of said projection.
a means to pneumatically move said seed and/or fertilizer from an air seeder through said tube to a distribution manifold;
said tube including at least one inner annular sloped ring projection;
said projection being of a width such that a downstream edge of said projection extends further towards the center of said tube than an upstream edge of said projection.
6. A device as claimed in claim 5 wherein the inside diameter of said upstream edge of said inner annular sloped ring projection is substantially the same as, or slightly less than, the diameter of the inside of said conveyance tube.
7. A device as claimed in claim 5 wherein said downstream edge of said inner annular sloped ring projection is perpendicular to the longitudinal axis of said conveyance tube and at a right angle to an inner wall of said conveyance tube.
8. A device as claimed in claim 5, wherein said transitional oblique second portion between said first and second portions includes a centrally disposed elongate planar baffle means;
said baffle means being adapted to split an incoming air stream of said seed and/or fertilizer or granular herbicide into an upper and a lower stream.
said baffle means being adapted to split an incoming air stream of said seed and/or fertilizer or granular herbicide into an upper and a lower stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002111611A CA2111611C (en) | 1993-12-16 | 1993-12-16 | Seed centering distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002111611A CA2111611C (en) | 1993-12-16 | 1993-12-16 | Seed centering distribution system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2111611A1 CA2111611A1 (en) | 1995-06-17 |
| CA2111611C true CA2111611C (en) | 1998-10-13 |
Family
ID=4152630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002111611A Expired - Fee Related CA2111611C (en) | 1993-12-16 | 1993-12-16 | Seed centering distribution system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2111611C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11066254B1 (en) | 2020-01-17 | 2021-07-20 | Cnh Industrial Canada, Ltd. | Distribution ramp for dry agricultural product applicator |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9802527D0 (en) | 1998-02-06 | 1998-04-01 | Flexi Coil Ltd | Delivery of seeds by air conveyor |
| CA2622428C (en) | 2007-09-21 | 2009-12-29 | Brian Dean | Sectional meter shut-off and agricultural implement having sectional meter shut-off |
| US8141504B2 (en) | 2008-02-26 | 2012-03-27 | One Pass Implements Inc. | Sectional meter shut-off and agricultural implement having sectional meter shut-off |
| CA2911182C (en) | 2015-11-03 | 2019-01-15 | Norbert Beaujot | Air seeder manifold with improved distribution uniformity |
| DE202021107061U1 (en) * | 2021-12-23 | 2023-01-10 | Rauch Landmaschinenfabrik Gmbh | Pneumatic distribution machine with a plurality of conveying lines for transferring the fluidized flow of distribution material to a plurality of distribution elements |
-
1993
- 1993-12-16 CA CA002111611A patent/CA2111611C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11066254B1 (en) | 2020-01-17 | 2021-07-20 | Cnh Industrial Canada, Ltd. | Distribution ramp for dry agricultural product applicator |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2111611A1 (en) | 1995-06-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |