US20070074490A1 - Apparatus and methods for bagging organic and other materials - Google Patents
Apparatus and methods for bagging organic and other materials Download PDFInfo
- Publication number
- US20070074490A1 US20070074490A1 US11/535,338 US53533806A US2007074490A1 US 20070074490 A1 US20070074490 A1 US 20070074490A1 US 53533806 A US53533806 A US 53533806A US 2007074490 A1 US2007074490 A1 US 2007074490A1
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- plastic material
- tunnel
- bagging machine
- bagging
- side edges
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- 239000000463 material Substances 0.000 title claims abstract description 181
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229920003023 plastic Polymers 0.000 claims abstract description 95
- 239000004033 plastic Substances 0.000 claims abstract description 95
- 238000012856 packing Methods 0.000 claims abstract description 22
- 239000004460 silage Substances 0.000 claims abstract description 13
- 239000002361 compost Substances 0.000 claims abstract description 10
- 229920002457 flexible plastic Polymers 0.000 claims description 14
- 239000012773 agricultural material Substances 0.000 claims description 6
- 238000009499 grossing Methods 0.000 claims description 4
- 238000004513 sizing Methods 0.000 claims description 3
- 239000011368 organic material Substances 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims 2
- 239000002699 waste material Substances 0.000 claims 2
- 239000004576 sand Substances 0.000 abstract description 4
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 240000004658 Medicago sativa Species 0.000 description 1
- 235000017587 Medicago sativa ssp. sativa Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/16—Arrangements in forage silos
- A01F25/18—Loading or distributing arrangements
- A01F25/183—Loading arrangements
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/14—Containers specially adapted for storing
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/14—Containers specially adapted for storing
- A01F2025/145—Bagging machines for loose materials making some kind of "sausage" on the field
Definitions
- This disclosure relates to apparatus and methods for bagging organic and other material such as silage, compost, grain, sawdust, dirt, sand, etc., and more particularly to apparatus and methods for dispensing plastic material from a roll mounted on a bagging machine so that the plastic material is at least partially wrapped around the material being bagged as the bagging machine moves ahead during packing and filling.
- organic and other material such as silage, compost, grain, sawdust, dirt, sand, etc.
- Agricultural feed and compost bagging machines have been employed for several years to pack or bag silage, compost or the like into elongated plastic bags.
- Two of the earliest bagging machines are disclosed in U.S. Pat. Nos. 3,687,061 and 4,046,068, the complete disclosures of which are incorporated herein by reference for all purposes.
- silage, compost, or the like is supplied to the forward or intake end of the bagging machine and is fed to a packing means such as a rotor, plunger, screw conveyor or the like which conveys the material into a tunnel on which the bag is positioned so that the bag is filled.
- the bagging machine moves away from the filled end of the bag in a controlled fashion so as to achieve uniform compaction of the silage material within the bag.
- the empty elongated plastic bags are in a folded condition and are initially positioned over the tunnel or forming means of the machine.
- the manufacturers of the plastic silage/compost bag must blow or extrude the plastic into a tubular/bag shape, roll it onto a core, fold it into a collar, and then put the same into a box or container, which is palleted for shipping.
- the box Once the box is delivered to the field, it may take several men and a crane to lift the bag out of the box and feed it by hand over and onto the tunnel.
- the bag is then laboriously pushed onto the tunnel until the bag is gathered at the forward end of the tunnel so that the bag is ready for filling and packing.
- a major disadvantage and cost of the current method of manufacturing plastic bags for use on bagging machines is the sophisticated and expensive machinery required by the manufacturers to fold the bags after the blowing or extruding process. Only a few manufacturers have such costly machines, and they pass the processing and material costs onto the end user. Secondly, the extra steps necessary to convert the roll of plastic into bags, fold the bags into boxes, load the individual boxes into a larger container for shipping, and then transport and deliver those boxes to the consumers adds time, packaging, space requirements, handling equipment, manpower and disposal costs to the entire process.
- a further problem created by the present method of putting a plastic bag onto a bagging machine is the physical strain and danger to the men who load the bag onto the tunnel.
- the newer, bigger bags (14′ ⁇ 500′) weigh up to 1200 lbs and the industry trend is for even larger tunnels and even longer bags.
- the method of bagging the material comprises the steps of: (1) providing a mobile bagging machine having rearward and forward ends, a material receiving means at the forward end thereof, a material packing means in communication with the material receiving means, and a rearwardly extending material forming or shaping enclosure, which may be in the form of a tunnel having an upper end, opposite sides and a lower end; (2) positioning a roll of flexible plastic material on the bagging machine; and (3) causing the plastic material to unroll from the roll, as material is forced through the tunnel, and to pass around the tunnel to partially or completely enclose the material being discharged from the tunnel.
- the plastic material forms a bag-like enclosure in which the material is placed.
- the method may include the step of controlling the packing density of the material being bagged.
- the term “bag” refers to a flexible container or enclosure which extends partially around or completely around material to partially or completely enclose the same.
- the apparatus for performing the method comprises a mobile frame having rearward and forward ends; a material receiving means on the mobile frame means; a material packing means on the mobile frame means in communication with the material receiving means; a rearwardly extending material forming or shaping enclosure, which may be in the form of a tunnel, in communication with the material packing means; and a roll of flexible plastic material mounted on the mobile frame means.
- the apparatus further includes a density control assembly operatively coupled to the bagging machine. The plastic material is pulled from the roll as the bagging machine moves forwardly during the bagging operation. The plastic material passes partially or completely around the tunnel to at least partially enclose the material being discharged from the tunnel.
- Various means for causing the plastic material to pass around the tunnel and at least partially beneath the tunnel are disclosed.
- FIG. 1 is a front perspective view of a bagging machine having a roll of plastic material mounted thereon with the plastic material being pulled from the roll to at least partially enclose the material being bagged;
- FIG. 2 is a side view of a bagging machine having a roll of plastic material mounted above the tunnel;
- FIG. 3 is a view similar to FIG. 2 except that the roll of plastic material has been extended around the tunnel;
- FIG. 4 is a perspective view of one form of the plastic material
- FIG. 5 is a perspective view of another form of the plastic material
- FIG. 6 is a front perspective view of a slitter operatively coupled to the bagging machine
- FIG. 7 is a rear view of the bagging machine illustrating an example of a plastic material guide assembly
- FIG. 8 is a rear view of the bagging machine illustrating the side edges of the plastic material being spaced apart;
- FIG. 9 is a view similar to FIG. 8 except that the side edges of the plastic material have been overlapped;
- FIG. 10 is a partial side view illustrating the manner in which the plastic material is passed through the guide assembly
- FIG. 11 is a rear perspective view illustrating an example of the guide assembly
- FIG. 12 is a rear view of the embodiment of FIG. 11 ;
- FIG. 13A is a partial rear perspective view of a bagging machine including an apparatus for adjusting the size of the bag formed by the plastic material as it passes around the tunnel;
- FIG. 13B is a side view of the embodiment of FIG. 13A ;
- FIG. 14A is a rear perspective view of a bagging machine including an apparatus for smoothing out the plastic material as it passes around the tunnel;
- FIG. 14B is a side view of the embodiment of FIG. 14A ;
- FIG. 15 is a side view illustrating an example of the guide assembly according to the present disclosure.
- FIG. 16 is a rear view of the embodiment of FIG. 15 ;
- FIG. 17 is a sectional view illustrating the material having been partially enclosed in the plastic material.
- FIG. 18 is a view similar to FIG. 17 except that the material has been completely enclosed within the plastic material.
- the numeral 10 refers to a bagging machine such as manufactured by Versa Corporation, Astoria, Oreg.
- the bagging machine is intended to bag organic material such as compost, silage, grain, sawdust, etc., within a bag.
- the machine 10 may also be used to bag dirt or sand to create temporary dikes during flooding.
- Machine 10 is seen to include a wheeled frame 12 having a forwardly extending tongue or hitch 14 adapted to be connected to a prime mover such as a tractor, truck, etc.
- Gear box 16 is provided on frame 12 and is driven by a PTO shaft 18 connected to the PTO on the tractor.
- frame 12 shown in the drawings is wheeled, it is possible that the wheels could be omitted.
- machine 10 could be truck mounted such as seen in U.S. Pat. No. 5,784,865. Additionally, the machine 10 could be self propelled such as illustrated in U.S. Pat. No. 5,799,472.
- machine 10 will be described as having a forward end 20 and a rearward end 22 .
- Machine 10 is provided with a material receiving means 24 at its forward end which may be in the form of: (1) a feed table such as seen in U.S. Pat. No. 5,297,377; (2) a hopper such as seen in U.S. Pat. No. 5,398,736; (3) a feed mechanism such as shown in U.S. Pat. No. 5,396,753; (4) a feed mechanism such as shown in U.S. Pat. No. 5,367,860; or (5) a hopper such as seen in U.S. Pat. Nos. 5,140,802; 5,419,102; and 5,724,793.
- the complete disclosures of the above-identified patents are hereby incorporated by reference for all purposes.
- the purpose of the material receiving means is to receive the material to be bagged and deliver the same to a material packing means 26 positioned at the forward end of a material shaping or forming enclosure 28 .
- the material packing means may be: (1) a rotor such as shown in U.S. Pat. Nos. 5,396,753; 5,297,377; 5,799,472; 5,295,554; (2) a screw conveyor such as seen in U.S. Pat. Nos. 5,140,802 or 5,419,102; (3) a plunger such as seen in U.S. Pat. No. 5,724,793; or (4) the packing fingers described in U.S. Pat. No. 3,687,061.
- a rotor such as shown in U.S. Pat. Nos. 5,396,753; 5,297,377; 5,799,472; 5,295,554
- a screw conveyor such as seen in U.S. Pat. Nos. 5,140,802 or 5,419,102
- a plunger such as seen in U.S. Pat. No. 5,724,793
- the material forming or shaping enclosure is illustrated as a tunnel 28 .
- the size (diameter) of the tunnel 28 will depend on the desired bag diameter.
- the tunnel 28 may be semi-circular or substantially semi-circular.
- the tunnel may have vertical straight portions on the opposing sides connected by an arcuate portion on the top.
- the tunnel may be formed from one or more arcuate portions having the same or different radii of curvature.
- “diameter” refers to the distance between opposing interior surfaces of the tunnel, whether semi-circular or substantially semi-circular.
- a face plate 30 may be secured to the forward end of the tunnel with the face plate 30 being secured to the frame of the machine.
- the face plate is permanently mounted on the machine with the tunnel being secured to the face plate.
- Various tunnels are shown in U.S. Pat. Nos. 5,899,247; 5,396,753; 5,297,377; 5,799,472; 5,398,736; 5,355,659; 5,295,554; 5,140,802; 5,419,102; 5,421,142; 5,724,793; and 5,894,713. The complete disclosures of the above-identified patents are hereby incorporated by reference for all purposes.
- the tunnel 28 will include a top wall 32 , side walls 34 and 36 , and at least a partial bottom wall 38 .
- Face plate 30 may include an opening 40 through which the material passes to the interior of the tunnel when a rotor is utilized as the packing means. If plungers, screw conveyors, etc., are utilized as the packing means, the face plate may or may not be included and opening 40 will be omitted.
- bagging machines 10 of the present disclosure may also include a density control assembly.
- a density control assembly as used herein refers to structures or devices that are coupled to the bagging machine and used to control or adjust the packing density of the material be packed into the bag.
- a variety of density control assemblies and methods may be implemented with the bagging machine of the present disclosure some examples of which include backstop control systems, internal control systems, and drag resistance control systems.
- a backstop structure yieldably engaged the closed end of the agricultural bag to resist the movement of the bagging machine away from the filled end of the agricultural bag as silage is forced into the bag.
- These machines included a pair of drums rotatably mounted on the bagging machine with a brake associated therewith for braking or resisting the rotation of the drum with a selected brake force.
- a cable is wrapped around the drum and is connected to the backstop. Examples of such bagging machines are disclosed in U.S. Pat. Nos. 3,687,061 and 4,046,068, previously incorporated by reference.
- an internal density control assembly including one or more cables was positioned in the flow of the agricultural material being bagged.
- more or less cables would be employed based on the material being packed.
- FIG. 13A One example of such an arrangement is shown in FIG. 13A where a cable loop 106 is formed with the ends 108 thereof coupled to the tunnel 28 .
- the configuration of cable loop shown in FIG. 13A is one of many cable loop configurations within the scope of the present disclosure. For example, more than one cable loop may be used.
- ends 108 of the cable loop may be coupled to the inside or the outside of the-tunnel 28 , may be coupled to the face plate, may be coupled to the bagging machine with an assembly for adjusting the width or length of the loop, may be coupled to the bagging machine in a non-parallel pattern where two or more of the cable loops cross each other, or may be coupled to the bagging machine with an anchor coupled to the rearward portion of the loop. Examples of these and other alternative configurations are disclosed in U.S. Pat. Nos.
- FIG. 14A Another arrangement have been used to control the packing density of the material being packed into the bag, one example of which is shown in FIG. 14A where a single cable 110 extends rearwardly from the bagging machine 10 and includes an anchor disposed at the rearward end 112 .
- the length of the cable 110 behind the bagging machine 10 may be fixed or adjustable. It is within the scope of the present disclosure that more than one cable can be used with or without anchors.
- an anchor is coupled to the rearward end 112 of the cable 110 , the size and configuration of the anchor may be fixed or adjustable.
- the V-shaped anchor 114 may be adjustable to have a greater or smaller angle between the arms of the V.
- an inflatable anchor may be used that can expand or contract as needed or a screw anchor may be used.
- a screw anchor may be used. Examples of these and other alternative configurations are disclosed in U.S. Pat. Nos. 6,655,116; 6,443,194; and RE38,020, the complete disclosures of which are hereby incorporated by reference for all purposes.
- drag resistance density control assemblies have been developed using belts or straps disposed between the bagged material and the ground.
- a drag member such as one or more belts or straps, is attached to the bagging machine or the tunnel and extends rearwardly behind the tunnel.
- the drag member is positioned between the bagged material and the ground and may be disposed inside the bag or outside the bag.
- the weight of the bagged material on the drag member slows the advance of the bagging machine and increases the packing density of the agricultural material in the bag.
- the packing density of the material in the bag may be established prior to beginning the bagging operation or may be adjusted as the bag is being filled.
- the packing density is established or adjusted, at least in part, by controlling the amount of drag member surface area disposed under the weight of the bagged material.
- Density control assemblies for agricultural bagging machines that include drag members are disclosed in U.S. Pat. No. 6,748,724 and U.S. patent application Ser. No. 10/867,593. The complete disclosures of the above-identified patent and patent application are hereby incorporated by reference for all purposes.
- One example of a drag member 116 coupled to a bagging machine is illustrated in FIG. 11 .
- a support 42 is secured to the machine 10 and extends upwardly therefrom adjacent the forward end of the tunnel 28 for rotatably supporting a roll 44 of plastic material 46 thereon.
- the plastic material 46 is dispensed from a roll 44 mounted on the bagging machine so that the plastic material 46 is at least partially wrapped around the agricultural material being bagged as the bagging machine moves ahead during packing and filling.
- the plastic material 46 is pulled from the roll 44 , as shown in FIG. 2 , and is positioned around the tunnel 28 and at least partially beneath the tunnel so that the plastic material 46 forms a bag-like enclosure, as shown in FIG. 3 .
- the roll 44 may be disposed above the tunnel 28 as shown in FIGS. 1-3 and may alternatively be disposed at other locations on the machine 10 . Additionally, the roll 44 may be enclosed in a housing or canister. It is also within the scope of the present disclosure that the plastic material could be dispensed from a source such as a box or container much like garbage bags are dispensed.
- the flexible plastic material of the present disclosure may be disposed on the roll either as a sheet having opposing ends and opposing side edges or as an elongate tube.
- the sheet of plastic material having opposing ends and opposing side edges may be formed by slitting an elongate tube prior to rolling the plastic material onto the roll or by slitting an elongate tube as the material is being rolled onto the roll.
- the sheet When the plastic material 46 is a sheet, the sheet may be folded in a tube-like shape such as seen in FIGS. 4 and 5 .
- the plastic material 46 in FIG. 4 is what would be termed a single fold including a front layer 48 and a back layer 50 .
- the front layer may be slit at 52 at the factory to form front layer portions 48 a and 48 b.
- the plastic material 46 on roll 44 may also be multi-layered, such as seen in FIG. 5 , with a front layer 54 , back layer 56 , and side gusset layers 58 and 60 therebetween. Similar to the single fold shown in FIG. 4 , front layer 54 may be slit at 62 at the factory to form front layers 54 a and 54 b.
- the tube When the flexible plastic material is disposed on the roll as an elongate tube, the tube may be slit as the plastic material is unrolled and positioned around the tunnel.
- a slitting device may be provided on support 42 or on machine 10 to slit the elongate tube. In some embodiments, the slitting device may slit the front layer as shown in FIGS. 4 and 5 .
- FIG. 6 One example of a slitting device 53 disposed on support 42 is shown in FIG. 6 .
- a pan 64 or other suitable support may be positioned below the forward end of the tunnel 28 as shown in FIGS. 1-3 .
- the pan 64 may have rollers 66 , 68 , 70 and 72 rotatably mounted thereon. Although four rollers are illustrated, more or less rollers could be utilized.
- Rollers 74 , 76 , 78 and 80 are rotatably mounted on the underside of floor 38 of tunnel 28 or other suitable support above rollers 66 , 68 , 70 and 72 , respectively. Referring to FIG. 10 , the peripheries of the corresponding rollers may be disposed in operative engagement with each other such that the flexible plastic material is allowed to pass therebetween and is moved in accordance with movement of the rollers.
- rollers 74 , 76 , 78 and 80 may be angled inwardly somewhat with respect to the centerline of-the tunnel so as to guide the plastic material 46 inwardly towards the centerline of the tunnel as will be described in greater detail hereinafter.
- the flexible plastic material is positioned around the tunnel with the opposing side edges of the plastic material disposed underneath the tunnel.
- the opposing side edges are shown as being disposed in a spaced-apart relationship.
- the opposing side edges will be disposed between the bagged material and the ground with the ground surface closing the bag, such as shown in FIG. 17 .
- the opposing side edges overlap and completely enclose the material being bagged.
- FIG. 18 illustrates a cross-sectional view of a bag filled with the configuration shown in FIG. 9 with the overlapping side edges.
- the overlapping portions may be sealed to form a closed periphery.
- the overlapping portions may be sealed in a variety of manners such as heat sealing, ultrasonic welding, adhesive sealing, or stapling.
- the rollers or wheels provided beneath the tunnel ensure that the plastic material will be pulled beneath the material being bagged so that the plastic material will form the bag-like enclosures of FIGS. 17 and 18 .
- the plastic material 46 beneath the tunnel 28 may be guided towards the centerline of the tunnel 28 through other plastic material guiding assemblies, one example of which is shown in FIGS. 11 and 12 .
- a protective tongue or shield 82 extends rearwardly from bottom wall 38 of tunnel 28 .
- Elongated rollers 84 and 86 are rotatably mounted beneath tongue 82 with the peripheries thereof being in engagement with each other.
- a pair of elongated rollers 88 and 90 are also rotatably mounted beneath tongue 82 with the peripheries thereof being in engagement with each other. As viewed in FIG.
- rollers 84 and 90 are driven in a counterclockwise direction and rollers 86 and 88 are rotated or driven in a clockwise direction by any suitable means.
- the coordinated rotation of rollers 84 , 86 , 88 , and 90 move the opposing side edges of the plastic material in opposing directions moving the side edges toward the centerline of the tunnel 28 .
- FIGS. 15 and 16 Another example of an assembly for guiding the plastic material 46 beneath the tunnel 28 towards the centerline of the tunnel is illustrated in FIGS. 15 and 16 .
- rotatable wheels replace the rollers of FIGS. 7-9 .
- a pair of small wheels 92 and 94 replace the rollers 74 and 66 and a pair of small wheels 96 and 98 replace the rollers 76 and 68 .
- a pair of small wheels 92 ′ and 94 ′ replace the rollers 80 and 82 and a pair of small wheels 96 and 98 ′ replace the rollers 78 and 70 .
- four pairs of small wheels are shown, any number of pairs of wheels could be utilized.
- Wheels 92 , 96 and 92 ′, 96 ′ are rotatably secured to floor 38 while wheels 94 , 98 and 94 ′, 98 ′ are rotatably secured to pan 64 or other suitable support.
- Wheels 92 , 94 are,in engagement with one another, as viewed in FIG. 16 , with driven wheel 92 being in engagement with wheel 94 .
- Wheel 92 is rotatably driven by any convenient means so that rotation of wheel 92 also causes wheel 94 to be rotatably driven.
- the peripheries of wheels 96 and 98 are in engagement with one another in the same manner as wheels 92 and 94 with wheel 96 being driven thereby also causing wheel 98 to rotate.
- Wheels 92 ′, 94 ′, 96 ′ and 98 ′ are similarly mounted and driven.
- FIGS. 13A and 13B illustrate a sizing assembly to adjust the diameter of the bag formed by the plastic material as it passes over the tunnel.
- a substantially U-shaped member 100 having a shroud 101 secured thereto extends around the tunnel with the plastic material passing thereover.
- the member 100 and the rearward end of shroud 101 are selectively vertically adjusted by an adjustment means 101 A ( FIG. 13B ) to adjust the size of the shroud and the bag formed by the plastic material passing thereover.
- FIGS. 14A and 14B illustrate a smoothing assembly to smooth out wrinkles that may be present in the plastic material as it passes around the tunnel.
- a plurality of balls or rollers 102 are rotatably mounted on a flexible cable 104 or the like with the balls or rollers 102 being in engagement with the exterior surface of tunnel 28 .
- the rotation of the balls smoothes out the plastic material as the plastic material passes between the balls and the tunnel.
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Abstract
Description
- This is a continuation-in-part application of U.S. patent application Ser. No. 10/334,484 filed on Dec. 30, 2002, entitled “A METHOD AND MEANS FOR BAGGING ORGANIC AND OTHER MATERIAL.” The entire disclosure of which is incorporated herein for all purposes.
- This disclosure relates to apparatus and methods for bagging organic and other material such as silage, compost, grain, sawdust, dirt, sand, etc., and more particularly to apparatus and methods for dispensing plastic material from a roll mounted on a bagging machine so that the plastic material is at least partially wrapped around the material being bagged as the bagging machine moves ahead during packing and filling.
- Agricultural feed and compost bagging machines have been employed for several years to pack or bag silage, compost or the like into elongated plastic bags. Two of the earliest bagging machines are disclosed in U.S. Pat. Nos. 3,687,061 and 4,046,068, the complete disclosures of which are incorporated herein by reference for all purposes. In prior art bagging machines, silage, compost, or the like is supplied to the forward or intake end of the bagging machine and is fed to a packing means such as a rotor, plunger, screw conveyor or the like which conveys the material into a tunnel on which the bag is positioned so that the bag is filled. As the silage is packed into the bag, the bagging machine moves away from the filled end of the bag in a controlled fashion so as to achieve uniform compaction of the silage material within the bag. The empty elongated plastic bags are in a folded condition and are initially positioned over the tunnel or forming means of the machine.
- In the present state of the art, the manufacturers of the plastic silage/compost bag must blow or extrude the plastic into a tubular/bag shape, roll it onto a core, fold it into a collar, and then put the same into a box or container, which is palleted for shipping. Once the box is delivered to the field, it may take several men and a crane to lift the bag out of the box and feed it by hand over and onto the tunnel. The bag is then laboriously pushed onto the tunnel until the bag is gathered at the forward end of the tunnel so that the bag is ready for filling and packing.
- A major disadvantage and cost of the current method of manufacturing plastic bags for use on bagging machines is the sophisticated and expensive machinery required by the manufacturers to fold the bags after the blowing or extruding process. Only a few manufacturers have such costly machines, and they pass the processing and material costs onto the end user. Secondly, the extra steps necessary to convert the roll of plastic into bags, fold the bags into boxes, load the individual boxes into a larger container for shipping, and then transport and deliver those boxes to the consumers adds time, packaging, space requirements, handling equipment, manpower and disposal costs to the entire process.
- A further problem created by the present method of putting a plastic bag onto a bagging machine is the physical strain and danger to the men who load the bag onto the tunnel. The newer, bigger bags (14′×500′) weigh up to 1200 lbs and the industry trend is for even larger tunnels and even longer bags.
- There is a need to replace the old process of manufacturing the bags and the installation of the same on the bagging machines to reduce manufacturing and handling costs, improve safety and worker ergonomics, and eliminate the stranglehold a few manufacturers have on bag distributors and consumers.
- Apparatus and methods for bagging organic and other material such as compost, silage, grain, sawdust, dirt, sand, etc., are described. The method of bagging the material comprises the steps of: (1) providing a mobile bagging machine having rearward and forward ends, a material receiving means at the forward end thereof, a material packing means in communication with the material receiving means, and a rearwardly extending material forming or shaping enclosure, which may be in the form of a tunnel having an upper end, opposite sides and a lower end; (2) positioning a roll of flexible plastic material on the bagging machine; and (3) causing the plastic material to unroll from the roll, as material is forced through the tunnel, and to pass around the tunnel to partially or completely enclose the material being discharged from the tunnel. The plastic material forms a bag-like enclosure in which the material is placed. Optionally, the method may include the step of controlling the packing density of the material being bagged.
- As used herein, the term “bag” refers to a flexible container or enclosure which extends partially around or completely around material to partially or completely enclose the same. The apparatus for performing the method comprises a mobile frame having rearward and forward ends; a material receiving means on the mobile frame means; a material packing means on the mobile frame means in communication with the material receiving means; a rearwardly extending material forming or shaping enclosure, which may be in the form of a tunnel, in communication with the material packing means; and a roll of flexible plastic material mounted on the mobile frame means. Optionally, the apparatus further includes a density control assembly operatively coupled to the bagging machine. The plastic material is pulled from the roll as the bagging machine moves forwardly during the bagging operation. The plastic material passes partially or completely around the tunnel to at least partially enclose the material being discharged from the tunnel. Various means for causing the plastic material to pass around the tunnel and at least partially beneath the tunnel are disclosed.
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FIG. 1 is a front perspective view of a bagging machine having a roll of plastic material mounted thereon with the plastic material being pulled from the roll to at least partially enclose the material being bagged; -
FIG. 2 is a side view of a bagging machine having a roll of plastic material mounted above the tunnel; -
FIG. 3 is a view similar toFIG. 2 except that the roll of plastic material has been extended around the tunnel; -
FIG. 4 is a perspective view of one form of the plastic material; -
FIG. 5 is a perspective view of another form of the plastic material; -
FIG. 6 is a front perspective view of a slitter operatively coupled to the bagging machine; -
FIG. 7 is a rear view of the bagging machine illustrating an example of a plastic material guide assembly; -
FIG. 8 is a rear view of the bagging machine illustrating the side edges of the plastic material being spaced apart; -
FIG. 9 is a view similar toFIG. 8 except that the side edges of the plastic material have been overlapped; -
FIG. 10 is a partial side view illustrating the manner in which the plastic material is passed through the guide assembly; -
FIG. 11 is a rear perspective view illustrating an example of the guide assembly; -
FIG. 12 is a rear view of the embodiment ofFIG. 11 ; -
FIG. 13A is a partial rear perspective view of a bagging machine including an apparatus for adjusting the size of the bag formed by the plastic material as it passes around the tunnel; -
FIG. 13B is a side view of the embodiment ofFIG. 13A ; -
FIG. 14A is a rear perspective view of a bagging machine including an apparatus for smoothing out the plastic material as it passes around the tunnel; -
FIG. 14B is a side view of the embodiment ofFIG. 14A ; -
FIG. 15 is a side view illustrating an example of the guide assembly according to the present disclosure; -
FIG. 16 is a rear view of the embodiment ofFIG. 15 ; -
FIG. 17 is a sectional view illustrating the material having been partially enclosed in the plastic material; and -
FIG. 18 is a view similar toFIG. 17 except that the material has been completely enclosed within the plastic material. - Referring to
FIG. 1 , thenumeral 10 refers to a bagging machine such as manufactured by Versa Corporation, Astoria, Oreg. The bagging machine is intended to bag organic material such as compost, silage, grain, sawdust, etc., within a bag. Themachine 10 may also be used to bag dirt or sand to create temporary dikes during flooding.Machine 10 is seen to include awheeled frame 12 having a forwardly extending tongue orhitch 14 adapted to be connected to a prime mover such as a tractor, truck, etc.Gear box 16 is provided onframe 12 and is driven by aPTO shaft 18 connected to the PTO on the tractor. Althoughframe 12 shown in the drawings is wheeled, it is possible that the wheels could be omitted. Further, themachine 10 could be truck mounted such as seen in U.S. Pat. No. 5,784,865. Additionally, themachine 10 could be self propelled such as illustrated in U.S. Pat. No. 5,799,472. The complete disclosures of both of the above-identified patents are hereby incorporated by reference for all purposes. For purposes of description,machine 10 will be described as having aforward end 20 and arearward end 22. -
Machine 10 is provided with a material receiving means 24 at its forward end which may be in the form of: (1) a feed table such as seen in U.S. Pat. No. 5,297,377; (2) a hopper such as seen in U.S. Pat. No. 5,398,736; (3) a feed mechanism such as shown in U.S. Pat. No. 5,396,753; (4) a feed mechanism such as shown in U.S. Pat. No. 5,367,860; or (5) a hopper such as seen in U.S. Pat. Nos. 5,140,802; 5,419,102; and 5,724,793. The complete disclosures of the above-identified patents are hereby incorporated by reference for all purposes. The purpose of the material receiving means is to receive the material to be bagged and deliver the same to a material packing means 26 positioned at the forward end of a material shaping or formingenclosure 28. - The material packing means may be: (1) a rotor such as shown in U.S. Pat. Nos. 5,396,753; 5,297,377; 5,799,472; 5,295,554; (2) a screw conveyor such as seen in U.S. Pat. Nos. 5,140,802 or 5,419,102; (3) a plunger such as seen in U.S. Pat. No. 5,724,793; or (4) the packing fingers described in U.S. Pat. No. 3,687,061. The complete disclosures of the above-identified patents are hereby incorporated by reference for all purposes.
- With reference to
FIG. 7 , the material forming or shaping enclosure is illustrated as atunnel 28. The size (diameter) of thetunnel 28 will depend on the desired bag diameter. Thetunnel 28 may be semi-circular or substantially semi-circular. For example, the tunnel may have vertical straight portions on the opposing sides connected by an arcuate portion on the top. Alternatively, the tunnel may be formed from one or more arcuate portions having the same or different radii of curvature. As used herein, “diameter” refers to the distance between opposing interior surfaces of the tunnel, whether semi-circular or substantially semi-circular. - With continued reference to
FIG. 7 , aface plate 30 may be secured to the forward end of the tunnel with theface plate 30 being secured to the frame of the machine. In some machines, the face plate is permanently mounted on the machine with the tunnel being secured to the face plate. Various tunnels are shown in U.S. Pat. Nos. 5,899,247; 5,396,753; 5,297,377; 5,799,472; 5,398,736; 5,355,659; 5,295,554; 5,140,802; 5,419,102; 5,421,142; 5,724,793; and 5,894,713. The complete disclosures of the above-identified patents are hereby incorporated by reference for all purposes. Normally, thetunnel 28 will include atop wall 32,side walls partial bottom wall 38.Face plate 30 may include anopening 40 through which the material passes to the interior of the tunnel when a rotor is utilized as the packing means. If plungers, screw conveyors, etc., are utilized as the packing means, the face plate may or may not be included andopening 40 will be omitted. - While not required, bagging
machines 10 of the present disclosure may also include a density control assembly. A density control assembly as used herein refers to structures or devices that are coupled to the bagging machine and used to control or adjust the packing density of the material be packed into the bag. A variety of density control assemblies and methods may be implemented with the bagging machine of the present disclosure some examples of which include backstop control systems, internal control systems, and drag resistance control systems. - In early bagging machines, a backstop structure yieldably engaged the closed end of the agricultural bag to resist the movement of the bagging machine away from the filled end of the agricultural bag as silage is forced into the bag. These machines included a pair of drums rotatably mounted on the bagging machine with a brake associated therewith for braking or resisting the rotation of the drum with a selected brake force. A cable is wrapped around the drum and is connected to the backstop. Examples of such bagging machines are disclosed in U.S. Pat. Nos. 3,687,061 and 4,046,068, previously incorporated by reference.
- In more recent bagging machines, an internal density control assembly including one or more cables was positioned in the flow of the agricultural material being bagged. In order to vary the packing density of the material in the machine, more or less cables would be employed based on the material being packed. For example, corn silage flows easy and would require more cables while alfalfa packs hard and would use fewer cables. One example of such an arrangement is shown in
FIG. 13A where acable loop 106 is formed with theends 108 thereof coupled to thetunnel 28. The configuration of cable loop shown inFIG. 13A is one of many cable loop configurations within the scope of the present disclosure. For example, more than one cable loop may be used. Additionally, theends 108 of the cable loop may be coupled to the inside or the outside of the-tunnel 28, may be coupled to the face plate, may be coupled to the bagging machine with an assembly for adjusting the width or length of the loop, may be coupled to the bagging machine in a non-parallel pattern where two or more of the cable loops cross each other, or may be coupled to the bagging machine with an anchor coupled to the rearward portion of the loop. Examples of these and other alternative configurations are disclosed in U.S. Pat. Nos. 5,297,377; 5,425,220; 5,463,849; 5,464,049; 5,517,806; 5,671,594; 5,775,069; 5,671,594; 5,857,313; and 6,694,711, the complete disclosures of which are hereby incorporated by reference for all purposes. - Other arrangements have been used to control the packing density of the material being packed into the bag, one example of which is shown in
FIG. 14A where asingle cable 110 extends rearwardly from the baggingmachine 10 and includes an anchor disposed at the rearward end 112. The length of thecable 110 behind the baggingmachine 10 may be fixed or adjustable. It is within the scope of the present disclosure that more than one cable can be used with or without anchors. When an anchor is coupled to the rearward end 112 of thecable 110, the size and configuration of the anchor may be fixed or adjustable. In the example shown inFIG. 14A , the V-shapedanchor 114 may be adjustable to have a greater or smaller angle between the arms of the V. Alternatively, an inflatable anchor may be used that can expand or contract as needed or a screw anchor may be used. Examples of these and other alternative configurations are disclosed in U.S. Pat. Nos. 6,655,116; 6,443,194; and RE38,020, the complete disclosures of which are hereby incorporated by reference for all purposes. - More recently, drag resistance density control assemblies have been developed using belts or straps disposed between the bagged material and the ground. In these embodiments, a drag member, such as one or more belts or straps, is attached to the bagging machine or the tunnel and extends rearwardly behind the tunnel. The drag member is positioned between the bagged material and the ground and may be disposed inside the bag or outside the bag. The weight of the bagged material on the drag member slows the advance of the bagging machine and increases the packing density of the agricultural material in the bag. The packing density of the material in the bag may be established prior to beginning the bagging operation or may be adjusted as the bag is being filled. The packing density is established or adjusted, at least in part, by controlling the amount of drag member surface area disposed under the weight of the bagged material. Density control assemblies for agricultural bagging machines that include drag members are disclosed in U.S. Pat. No. 6,748,724 and U.S. patent application Ser. No. 10/867,593. The complete disclosures of the above-identified patent and patent application are hereby incorporated by reference for all purposes. One example of a
drag member 116 coupled to a bagging machine is illustrated inFIG. 11 . - With reference to
FIGS. 2 and 3 , asupport 42 is secured to themachine 10 and extends upwardly therefrom adjacent the forward end of thetunnel 28 for rotatably supporting aroll 44 ofplastic material 46 thereon. Theplastic material 46 is dispensed from aroll 44 mounted on the bagging machine so that theplastic material 46 is at least partially wrapped around the agricultural material being bagged as the bagging machine moves ahead during packing and filling. Theplastic material 46 is pulled from theroll 44, as shown inFIG. 2 , and is positioned around thetunnel 28 and at least partially beneath the tunnel so that theplastic material 46 forms a bag-like enclosure, as shown inFIG. 3 . - The
roll 44 may be disposed above thetunnel 28 as shown inFIGS. 1-3 and may alternatively be disposed at other locations on themachine 10. Additionally, theroll 44 may be enclosed in a housing or canister. It is also within the scope of the present disclosure that the plastic material could be dispensed from a source such as a box or container much like garbage bags are dispensed. - The flexible plastic material of the present disclosure may be disposed on the roll either as a sheet having opposing ends and opposing side edges or as an elongate tube. The sheet of plastic material having opposing ends and opposing side edges may be formed by slitting an elongate tube prior to rolling the plastic material onto the roll or by slitting an elongate tube as the material is being rolled onto the roll.
- When the
plastic material 46 is a sheet, the sheet may be folded in a tube-like shape such as seen inFIGS. 4 and 5 . Theplastic material 46 inFIG. 4 is what would be termed a single fold including afront layer 48 and aback layer 50. The front layer may be slit at 52 at the factory to formfront layer portions plastic material 46 onroll 44 may also be multi-layered, such as seen inFIG. 5 , with afront layer 54, backlayer 56, and side gusset layers 58 and 60 therebetween. Similar to the single fold shown inFIG. 4 ,front layer 54 may be slit at 62 at the factory to formfront layers - When the flexible plastic material is disposed on the roll as an elongate tube, the tube may be slit as the plastic material is unrolled and positioned around the tunnel. A slitting device may be provided on
support 42 or onmachine 10 to slit the elongate tube. In some embodiments, the slitting device may slit the front layer as shown inFIGS. 4 and 5 . One example of aslitting device 53 disposed onsupport 42 is shown inFIG. 6 . - A
pan 64 or other suitable support may be positioned below the forward end of thetunnel 28 as shown inFIGS. 1-3 . With reference toFIG. 7 , thepan 64 may haverollers Rollers floor 38 oftunnel 28 or other suitable support aboverollers FIG. 10 , the peripheries of the corresponding rollers may be disposed in operative engagement with each other such that the flexible plastic material is allowed to pass therebetween and is moved in accordance with movement of the rollers. Although four rollers are illustrated, more or less rollers could be utilized. The number of rollers on the underside offloor 38 will correspond to the number of rollers onpan 64. In some embodiments, therollers plastic material 46 inwardly towards the centerline of the tunnel as will be described in greater detail hereinafter. - As can be seen in
FIGS. 8 and 9 , the flexible plastic material is positioned around the tunnel with the opposing side edges of the plastic material disposed underneath the tunnel. InFIG. 8 , the opposing side edges are shown as being disposed in a spaced-apart relationship. When the agricultural material is packed into the bag formed by the configuration inFIG. 8 , the opposing side edges will be disposed between the bagged material and the ground with the ground surface closing the bag, such as shown inFIG. 17 . InFIG. 9 , the opposing side edges overlap and completely enclose the material being bagged.FIG. 18 illustrates a cross-sectional view of a bag filled with the configuration shown inFIG. 9 with the overlapping side edges. When the side edges of the plastic material overlap, the overlapping portions may be sealed to form a closed periphery. The overlapping portions may be sealed in a variety of manners such as heat sealing, ultrasonic welding, adhesive sealing, or stapling. The rollers or wheels provided beneath the tunnel ensure that the plastic material will be pulled beneath the material being bagged so that the plastic material will form the bag-like enclosures ofFIGS. 17 and 18 . - The
plastic material 46 beneath thetunnel 28 may be guided towards the centerline of thetunnel 28 through other plastic material guiding assemblies, one example of which is shown inFIGS. 11 and 12 . In the embodiment ofFIGS. 11 and 12 , a protective tongue orshield 82 extends rearwardly frombottom wall 38 oftunnel 28.Elongated rollers tongue 82 with the peripheries thereof being in engagement with each other. A pair ofelongated rollers tongue 82 with the peripheries thereof being in engagement with each other. As viewed inFIG. 12 ,rollers rollers rollers tunnel 28. - Another example of an assembly for guiding the
plastic material 46 beneath thetunnel 28 towards the centerline of the tunnel is illustrated inFIGS. 15 and 16 . In the embodiment ofFIGS. 15 and 16 , rotatable wheels replace the rollers ofFIGS. 7-9 . A pair ofsmall wheels rollers small wheels rollers small wheels 92′ and 94′ replace therollers small wheels rollers Wheels floor 38 whilewheels Wheels FIG. 16 , with drivenwheel 92 being in engagement withwheel 94.Wheel 92 is rotatably driven by any convenient means so that rotation ofwheel 92 also causeswheel 94 to be rotatably driven. The peripheries ofwheels wheels wheel 96 being driven thereby also causingwheel 98 to rotate.Wheels 92′, 94′, 96′ and 98′ are similarly mounted and driven. -
FIGS. 13A and 13B illustrate a sizing assembly to adjust the diameter of the bag formed by the plastic material as it passes over the tunnel. InFIGS. 13A and 13B , a substantiallyU-shaped member 100 having ashroud 101 secured thereto extends around the tunnel with the plastic material passing thereover. Themember 100 and the rearward end ofshroud 101 are selectively vertically adjusted by an adjustment means 101A (FIG. 13B ) to adjust the size of the shroud and the bag formed by the plastic material passing thereover. -
FIGS. 14A and 14B illustrate a smoothing assembly to smooth out wrinkles that may be present in the plastic material as it passes around the tunnel. InFIGS. 14A and 14B , a plurality of balls orrollers 102 are rotatably mounted on aflexible cable 104 or the like with the balls orrollers 102 being in engagement with the exterior surface oftunnel 28. The rotation of the balls smoothes out the plastic material as the plastic material passes between the balls and the tunnel. - It is believed that the disclosure set forth above encompasses multiple distinct inventions with independent utility. While each of these inventions has been disclosed in its preferred form, the specific embodiments thereof as disclosed and illustrated herein are not to be considered in a limiting sense as numerous variations are possible. The subject matter of the inventions includes all novel and non-obvious combinations and subcombinations of the various elements, features, functions and/or properties disclosed herein. Where the disclosure or subsequently filed claims recite “a” or “a first” element or the equivalent thereof, it should be within the scope of the present inventions that such disclosure or claims may be understood to include incorporation of one or more such elements, neither requiring nor excluding two or more such elements.
- Applicant reserves the right to submit claims directed to certain combinations and subcombinations that are directed to one of the disclosed inventions and are believed to be novel and non-obvious. Inventions embodied in other combinations and subcombinations of features, functions, elements and/or properties may be claimed through amendment of those claims or presentation of new claims in that or a related application. Such amended or new claims, whether they are directed to a different invention or directed to the same invention, whether different, broader, narrower or equal in scope to the original claims, are also regarded as included within the subject matter of the inventions of the present disclosure.
Claims (35)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/535,338 US20070074490A1 (en) | 2002-12-30 | 2006-09-26 | Apparatus and methods for bagging organic and other materials |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US10/334,484 US20040128953A1 (en) | 2002-12-30 | 2002-12-30 | Method and means for bagging organic and other material |
US11/009,690 US7117656B2 (en) | 2002-12-30 | 2004-12-10 | Apparatus and methods for bagging organic and other materials |
US11/535,338 US20070074490A1 (en) | 2002-12-30 | 2006-09-26 | Apparatus and methods for bagging organic and other materials |
Related Parent Applications (2)
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US10/334,484 Continuation-In-Part US20040128953A1 (en) | 2002-12-30 | 2002-12-30 | Method and means for bagging organic and other material |
US11/009,690 Division US7117656B2 (en) | 2002-12-30 | 2004-12-10 | Apparatus and methods for bagging organic and other materials |
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US20070074490A1 true US20070074490A1 (en) | 2007-04-05 |
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US11/009,690 Expired - Lifetime US7117656B2 (en) | 2002-12-30 | 2004-12-10 | Apparatus and methods for bagging organic and other materials |
US11/535,338 Abandoned US20070074490A1 (en) | 2002-12-30 | 2006-09-26 | Apparatus and methods for bagging organic and other materials |
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US10/334,484 Abandoned US20040128953A1 (en) | 2002-12-30 | 2002-12-30 | Method and means for bagging organic and other material |
US11/009,690 Expired - Lifetime US7117656B2 (en) | 2002-12-30 | 2004-12-10 | Apparatus and methods for bagging organic and other materials |
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US (3) | US20040128953A1 (en) |
AU (1) | AU2003230997A1 (en) |
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US20080110133A1 (en) * | 2006-08-16 | 2008-05-15 | Lorenzi Thomas E | Flexible Container Filling Device |
USD732261S1 (en) | 2014-02-10 | 2015-06-16 | Src Innovations, Llc | Bagging machine cabin |
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US20040128953A1 (en) * | 2002-12-30 | 2004-07-08 | Cullen Steven R. | Method and means for bagging organic and other material |
US7434375B2 (en) * | 2006-09-22 | 2008-10-14 | Deere & Company | Automated system for in-field storage, traceability and unloading of harvest products of harvested material from a harvesting machine |
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US8789563B2 (en) * | 2010-10-12 | 2014-07-29 | Deere & Company | Intelligent grain bag loader |
AR083334A3 (en) * | 2011-09-26 | 2013-02-21 | Fiber K Ind S A | PACKING MACHINE SUITABLE FOR ALL KINDS OF DRY AND SMOKE GRAIN |
CN109982934B (en) * | 2016-06-30 | 2021-07-16 | 托普凯尔有限公司 | Apparatus for manufacturing bag-like container |
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US20080110133A1 (en) * | 2006-08-16 | 2008-05-15 | Lorenzi Thomas E | Flexible Container Filling Device |
USD732261S1 (en) | 2014-02-10 | 2015-06-16 | Src Innovations, Llc | Bagging machine cabin |
Also Published As
Publication number | Publication date |
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US7117656B2 (en) | 2006-10-10 |
US20050120682A1 (en) | 2005-06-09 |
WO2004060045A1 (en) | 2004-07-22 |
US20040128953A1 (en) | 2004-07-08 |
AU2003230997A1 (en) | 2004-07-29 |
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