AGRICULTURAL APPLICATOR AND SYSTEM
20210289767 · 2021-09-23
Assignee
Inventors
Cpc classification
A01M7/005
HUMAN NECESSITIES
A01M7/0042
HUMAN NECESSITIES
B05B15/14
PERFORMING OPERATIONS; TRANSPORTING
A01C23/02
HUMAN NECESSITIES
B05B15/62
PERFORMING OPERATIONS; TRANSPORTING
B05B15/656
PERFORMING OPERATIONS; TRANSPORTING
B05B13/005
PERFORMING OPERATIONS; TRANSPORTING
International classification
A01M7/00
HUMAN NECESSITIES
A01C23/02
HUMAN NECESSITIES
B05B13/00
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A variable width agricultural applicator is provided. The variable width agricultural applicator is attachable to a boom to apply a liquid to a crop in rows. The variable width agricultural sprayer includes a drop tube and a splitter downstream of the drop tube. The splitter is fluidly connected to the drop tube. A pair of flexible delivery tubes is fluidly connected to the splitter. Each one of the pair of flexible delivery tubes has a predetermined bend.
Claims
1-22. (canceled)
23. An agricultural applicator comprising: a boom; a plurality of spray nozzles extending along the boom; a plurality of spray tips located gravitationally above the boom; a plurality of hoses, each hose of the plurality of hoses fluidly connecting a respective spray nozzle of the plurality of spray nozzles to a respective spray tip of the plurality of spray tips.
24. The agricultural applicator of claim 23, wherein the plurality of spray tips are independently adjustable to raise or lower their height above the boom.
25. The agricultural applicator of claim 23, wherein each one of the plurality of spray tips are independently adjustable to change a spray angle at which each one of the plurality of spray tips apply a fluid to a crop, the spray angle measured from vertical to a longitudinal axis of the spray tip extending through an outlet of the spray tip.
26. The agricultural applicator of claim 23, wherein each one of the plurality of spray tips is independently adjustable relative to an adjacent one of the plurality of spray tips to increase or decrease a width therebetween.
27. The agricultural application of claim 24, wherein the height of each one of the plurality of spray tips above the boom is adjustable independently of each other one of the plurality of spray tips such that the height of any one of the plurality of the spray tips may be different than the height of any other one of the of the plurality of the spray tips.
28. The agricultural applicator of claim 23, wherein the respective spray tip of the plurality of spray tips is connected to a respective telescoping tube of a plurality of telescoping tubes, the respective telescoping tube extendable and retractable to adjust a height of each one of the spray tips above the boom.
29. The agricultural applicator of claim 28, wherein the respective telescoping tube has a proximal end nearest the boom, the proximal end adjustable to change a first angle between the telescoping tube and the boom,
30. The agricultural applicator of claim 28, wherein a spray angle measured from vertical to a longitudinal axis of the respective spray tip extending through an outlet of the respective spray tip is adjustable by rotating the respective spray tip towards or away from the front of the boom, the front of the boom facing a direction of travel as the boom travels through a crop.
31. The agricultural applicator claim 28, wherein a telescoping tube angle measured from a longitudinal axis defined by the respective telescoping tube to a boom longitudinal axis is adjustable by rotating the respective telescoping tube towards or away from a front of the boom, the front of the boom facing a direction of travel as the boom travels through a crop.
32. The agricultural applicator of claim 29, wherein the respective telescoping tube has a distal end opposite the proximal end, the distal end rotatably connected to the spray tip.
33. The agricultural applicator claim 26, wherein the plurality of spray tips are adjustable to increase or decrease a width between each one of them independent of the width between each one of the plurality of spray nozzles.
34. The agricultural applicator of claim 33, wherein the width between a one of the plurality of spray tips and another one of the plurality of spray tips immediately adjacent to the one of the plurality of spray tips is not the same as the width between any pair of the plurality of spray nozzles.
35. The agricultural applicator of claim 23, wherein the respective spray tip is mounted to a respective base of a plurality of bases mounted to boom.
36. The agricultural applicator of claim 35, wherein the respective base is magnetic and magnetically secures the respective base to the boom.
37. The agricultural applicator of claim 35, wherein each one of the plurality of respective bases is removably clamped or removably secured with fasteners to the boom.
38. The agricultural applicator of claim 35, wherein a width between adjacent ones of the plurality of bases is adjusted by changing the location of at least one of the adjacent ones of the plurality of bases mounted to the boom.
39. A method for spraying a crop in a field with a boom having a plurality of spray nozzles extending along the boom, the method comprising the steps of: attaching a plurality of bases to the boom; attaching a respective one of a plurality of spray tips to a respective one of the plurality of bases so that each respective one of the plurality of spray tips is located above the boom; fluidly connecting the plurality of spray tips to the plurality of spray nozzles with a plurality of hoses.
40. The method of claim 39, further comprising the step of extending and retracting a respective telescoping tube of each one of the plurality of bases to increase or decrease the height of a respective one of the plurality of spay tips above the boom.
41. The method of claim 39, further comprising the step of independently adjusting a spray angle of each one of the plurality of spray tips, the spray angle measured from a longitudinal axis extending through the spray tip to vertical.
42. The method of claim 39, including the step of moving the boom through a crop to bend a crop canopy of the crop, the plurality of spray tips applying a fluid to the bent crop.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0032] The accompanying drawings incorporated in and forming a part of the specification illustrate several aspects of the present invention and, together with the description, serve to explain the principles of the invention. In the drawings:
[0033]
[0034]
[0035]
[0036]
[0037]
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[0039]
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[0043]
[0044] While the invention will be described in connection with certain preferred embodiments, there is no intent to limit it to those embodiments. On the contrary, the intent is to cover all alternatives, modifications and equivalents as included within the spirit and scope of the invention as defined by the appended claims.
DETAILED DESCRIPTION OF THE INVENTION
[0045] Turning now to the drawings, there is illustrated in
[0046]
[0047]
[0048] The supply line 110 connects to a stainless or plastic ⅜″ hose barb×½″ MPT adapter that is threaded into coupler 112 of drop tube 114. Coupler 112 is a ½″ FPT high pressure stainless steel bar stock coupler.
[0049] Coupler 112 is welded to a drop mount sleeve 116 of a drop pivot mount assembly 118 in a perpendicular orientation so that the two bisect each other, making a cross. The drop mount sleeve consists of a 2 inch long section of 1″ OD×0.76″ ID×0.120″ wall 304 stainless steel tube. In an embodiment, as illustrated, the drop pivot mount assembly 118 may include fork 120 that may be mounted on the opposite side of the drop mount sleeve 114. The fork 120 may be made up of two ⅜″ stainless steel rods bent to follow the curve of the drop mount sleeve 114 and welded to the drop mount sleeve 116 approximately ¾″ apart.
[0050] The pivot mount assembly 118 attaches to a first hydraulic hose 122. The first hydraulic hose 122 is of relatively short length and is approximately ½″ diameter. The first hydraulic hose 122 is flexible and has stainless steel non swivel ends. The first hydraulic hose 122, as illustrated is inside of a break away spring 124. The hydraulic hose 122 is threaded into a second coupler 128 of a rigid portion 126 of the drop tube 114. The second coupler 128 is a weld on NPT coupler that is welded to a piece of ¾ OD×0.065 W 304 stainless tube 130 that varies in length depending on the application and extent needed extend from the boom 102 depending on the range of heights available with the boom 102. In other words, tractors vary in size. A tractor that that has a boom higher than another smaller tractor may require longer lengths of stainless steel tube 130. The liquid 106 then enters into the first hydraulic hose 122 such that the liquid 106 directly contacts the first hydraulic hose 122.
[0051] At the distal end 132 of the rigid portion 126, a third coupler 134 is attached via weld. The third coupler 134 is ¼″ FPT. The third coupler 134 connects the rigid portion 126 of the drop tube 114 to a second hydraulic hose 144. The second hydraulic hose 144 may be ⅜ inch diameter hydraulic hose that can vary in lengths depending on the operational needs. The second hydraulic hose 144 may have stainless ends. A first end is threaded into the third coupler 134.
[0052] The second hydraulic hose 144 at a second end is attached to a splitter 146. Splitter 106 divides the liquid 106 into a first flexible delivery tube 148 and a second delivery tube 150 to apply the liquid 106 out of the first and second outlets 152, 154 to the first and second rows of crops 108, 110.
[0053] Turning now to
[0054] Second bend 150 divides the second delivery tube 150 into second upstream portion 157 and second downstream portion 159. Second bend 150 defines a second application angle 156. The first and second application angles 147, 156 are equal to one another. This in an embodiment the second application angle 147 is between 110 and 170 degrees. In a preferred embodiment, the second application angle 156 is between the between 120 and 165 degrees and in a more preferred embodiment the application angle 156 is between 130 and 160 degrees.
[0055] The application angles 147, 156 define a first width 158 between the bends 147, 156. Thus, the operator chooses the first and second delivery tubes 148, 150 having the predetermined bends 147, 156 based upon the row width 109 (
[0056] The first and second flexible delivery tubes 148, 150 are both the same length but because they can be changed out, the overall lengths can vary to accommodate the desired application. Indeed the first and second flexible delivery tubes 148 and 150 connect the splitter 146 at outlets 160, 162 via hose barbs 164, 166. In an embodiment the outlets 160, 162 form a splitter angle 172 between 30 and 80 degrees. In a preferred embodiment the splitter angle 172 is between 40 and 75 degrees and in a more preferred embodiment, the splitter angle 172 is between 45 and 65 degrees. As with the interchangeability of the first and second delivery tubes 148, 150, splitter 146 can be chosen with a predetermined splitter angle 172 to accommodate various row widths between crops.
[0057]
[0058] Orifices 171, 173 may be placed at the outlets 160, 162 to control flow therethrough. The orifices 171, 173 may be changed out with other orifices of other diameters to depending on the operational needs. The orifices 171, 173 may be changed out by unthreading the hose barbs 164, 166 out of the outlets 160, 162, inserting the new orifices and rethreading the hose barbs into the outlets 160, 162.
[0059]
[0060] The rigid portion 126 at the distal end 132 is bent to produce a bend 136 (
[0061] Also, an embodiment of the first delivery tube 148 is illustrated wherein instead of the check valve 170 being present in the splitter 146 it is found as a stainless steel check valve 190 with orifices 192 and deflector 194 attached via hose barb 196 that allow for maintaining pressure avoid dribbling liquid after shut off and keep the liquid aimed down at the base of the plant to avoid damage.
[0062]
[0063] The bracket 180 is therefore a mounting bracket. It is attached directly to the existing boom 102. The pivot shaft 180 is inserted into the ¾″ hole of the bracket 178 and plug welded on the inside then ground flush if necessary for proper fitment to the boom 102. The bracket 178 can be mounted with the pivot shaft 180 facing towards the front of the tractor 104 (
[0064] Each drop tube 114 is then slid over the pivot shaft 180 with bushings 184 on each side of it. The bushings 184 are held onto the shaft with a lynch pin 182 that is inserted into a retainer bushing 184 that has a hole drilled through it once it is lined up with a corresponding hole in the pivot shaft 180. The retainer bushing 184 may be fitted with a retainer rod 190 (
[0065]
[0066] Still with respect to
[0067] The sub-boom 192 is of lengths of thin walled 1.5″ square tube with rectangular holes laser cut in one of the 4 faces every 10 inches, starting centered 5″ in, allowing a space for the worm gears 202 to mesh. The sub boom 192 is then mounted to the existing boom 102 (
[0068] Each end of the sub-boom 192 is capped with a cap 208. The cap 208 is a square piece of steel with a hole in the center to allow the shaft 198 access and prevent lateral movement of the shaft 198. The cap 208 is welded to the end of a sub-boom coupler and bolted to the sub-boom 192. The shaft 198 is held in position by bushings 200 also referred to as poly bushings 200, lock collars 210, 211 and or roll pins as well as the tube caps 208. The poly bushings 200 may also be fastened through the tube wall with screws or bolts if necessary. A variety of power sources can be used to power the shaft 198, for example hydraulic, pneumatic and electric with the use of motors and pulleys, gears or direct drive depending on the application.
[0069] A mounting bracket 212, similar to the bracket 178 (
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[0074] The agricultural applicator 300 relocates application from a nozzle on the boom 302 to a spray tip 304 at a position higher than the boom 302. As the boom 302 moves through a field of crops the crops are bent over and the spray tip 304 s above the boom 302 on the agricultural applicator 300 are able to direct the liquid to the foliage opened up by the boom 302. One can readily appreciate that the boom 302 may have and agricultural applicator 300 at each nozzle position on the boom 302.
[0075] By extending the spray tip 304 to the correct height above the boom 302 and by allowing the spray tip 304 to be angled at the correct angle to penetrate the crop canopy within the turbulence created by the crop as it springs back up from being pushed by the boom 302, better crop coverage and penetration than any other application system is achieved.
[0076] A difference between conventional booms 302 and their use with the agricultural applicator 300 is its ability to use the existing boom 302 to move the crop canopy while applying foliar amendments above the crop at the ideal height and angle due to its adjustable positioning mechanisms that moves the spray tips 304 well above the boom 302. Each spray tip 304 receive the supply of liquid to be applied to the crop via a hose 314. The hose 314 may be a push connector hose to allow for easy installation.
[0077] The agricultural applicator 300 includes a magnetic base 306 for attachment to the boom 302. However, as can be appreciated other mounts including clamps and fasteners may be used by way of non-limiting examples. The agricultural applicator 300 includes a first locking ball 308 and socket joint 310 proximate the magnetic base 306. A telescoping tube 308 extends from socket joint 310 to a positional adjustment ball 312 attached to the spray tip 304. These features allow for positioning as well as spacing independent from the pre-existing nozzles on the boom 302. The adjustments provided by the features allow vertical and horizontal position to be set by the operator for ideal spray distribution.
[0078] Optional components include tanks mounted by saddling existing sprayer tanks allowing placement of an additional tank on existing sprayers with minimal mounting problems. Other items will be spray pumps and control valves with harnesses that tee into existing sprayer control to tandem off of existing section control or as stand-alone control systems.
[0079] All references, including publications, patent applications, and patents cited herein are hereby incorporated by reference to the same extent as if each reference were individually and specifically indicated to be incorporated by reference and were set forth in its entirety herein.
[0080] The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention (especially in the context of the following claims) is to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The terms “comprising,” “having,” “including,” and “containing” are to be construed as open-ended terms (i.e., meaning “including, but not limited to,”) unless otherwise noted. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention.