Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
  • A01M21/00—Apparatus for the destruction of unwanted vegetation, e.g. weeds
  • A01M21/04—Apparatus for destruction by steam, chemicals, burning, or electricity
  • A01M21/043—Apparatus for destruction by steam, chemicals, burning, or electricity by chemicals
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
  • B05B1/28—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with integral means for shielding the discharged liquid or other fluent material, e.g. to limit area of spray; with integral means for catching drips or collecting surplus liquid or other fluent material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1028—Pumps having a pumping chamber with a deformable wall
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
  • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
  • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
  • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
  • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
  • B05B9/0872—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being a peristaltic pump

Definitions

• This invention relates to a device configured for the directed application of herbicide to plants. Specifically, this invention relates to a device that effectively applies liquid herbicide to undesirable weeds through a pump-action spray.
• the spray is contained by positioning the device such that a conical end-piece encases the weed preventing diffusion of the sprayed herbicide.
• the use of herbicide is limited by the pump action spray, which discharges herbicide in limited quantities.
• No. 6,367,714 discloses a weed stick operational by two hands, which distributed herbicide by activating a spring-loaded lever.
• U.S. Patent No. 2,841,923 discloses a device for distributing herbicide from a hollow tube by placing the device over a weed and depressing a long plunger, which forced herbicide through a nozzle onto the weed.
• the prior art lacks an assembly that is convenient, of cheap manufacture, manual non-motorized control, and effectively sprays liquid containing an active ingredient from an effective distance while both controlling and focusing the spray onto the intended target.
• a directed herbicide delivery device is created to store a small amount of liquid herbicide in a portable container, with the container having an inverted spray pump and nozzle to direct herbicide downward when activated.
• the container is operable by hand and allows rapid refilling or altering chemicals or any other liquid containing an active ingredient to be applied.
• Figure 1 is a side elevational view of a chemical delivery system according to one embodiment
• Figure 2 is a sectional view of a detail of a chemical delivery system of the embodiment of Figure 1;
• Figure 3 is an exploded view of a detail including vessel assembly of a chemical delivery system of the embodiment of Figure 1;
• Figure 4 is a detail of a pump assembly of an embodiment of a chemical delivery system
• Figure 5 is an exploded view of an assembly an embodiment of a chemical delivery system
• Figure 6 is an exploded view of a detail including pump assembly of a chemical delivery system of Figure 1.
• This disclosure is a chemical delivery system that is approximately four feet long made of three primary parts: a handle, a cone, and a vessel.
• the vessel contains a pump capable of being submerged in the liquid containing an active ingredient to be sprayed that allows it to aim its spray downward while allowing substantially all of the liquid to be pumped from the vessel with limited remaining in the vessel.
• the chemical delivery system is operated by slight force applied by the user against the handle and forcing the cone against the ground. This slight force compresses the pump, which ejects liquid containing an active ingredient onto the target.
• An embodiment of the present disclosure is a chemical delivery system 100 generally consisting of cone 10, handle 20, vessel 30 and pump assembly 40.
• the chemical delivery system 100 can be placed in a vertical orientation with handle 20 in the upmost location (aft) and cone 10 in the bottommost location (fore). In this orientation, the chemical delivery system can be operated to dispense liquid containing an active ingredient to, for instance and without limitation, kill weeds.
• an active ingredient to, for instance and without limitation, kill weeds.
• Other uses include, for instance and without limitation, dispensing pesticides or fertilizer.
• pump assembly 40 is composed of j-tube 41, gasket 42, pump 43, spray nozzle 44, and spreader 45.
• J-tube 41 is a solid plastic tube with an approximate 180 degree bend such that inlet 46 and outlet 47 both face the same direction.
• Spray nozzle 44 has a conical shape to accelerate liquid flow.
• Pump 43 is a mechanical pump arranged such that when mechanical force is applied axially, pump 43 compresses from its expanded configuration to its compressed configuration, and liquid therein is forced out. When mechanical force is relaxed pump 43 expands from its compressed configuration to its expanded configuration, creating a void which draws liquid into pump 43.
• inlet 46 can reach the bottommost or fore-most part of vessel 30 to ensure the maximum amount of liquid in vessel 30 can be pumped through pump assembly 40.
• pump 43 is threaded through the eye of gasket 42 until the gasket is seated at the location pump 43 is adapted to contact vessel 30.
• Outlet 47 of j-tube 41 is placed inside pump 43.
• Pump 43 is adapted to receive on one end outlet 47 of j-tube 41 and on the opposite end spray nozzle 44.
• Spray nozzle 44 is fixedly attached to pump 43.
• Spreader 45 is fixedly attached to nozzle 44.
• An embodiment has a foam ring 48 between nozzle 44 and pump 43 such that when pump assembly 40 is activated, spray nozzle 44 does not directly contact pump 43.
• An embodiment has spring 49 inside pump 43 biasing pump 43 in its expanded configuration. Fully assembled, all parts composing pump assembly 40 are axially arranged, as shown in Fig. 6, except the portion of j-tube 40 nearest inlet 46.
• An embodiment has one or more valves 50 inside pump 43 arranged to allow liquid to be drawn in through j-tube 41 when pump 43 changes from its compressed configuration to its expanded configuration and forced out through sprayer nozzle 44 when pump 43 changes from its expanded configuration to its compressed configuration.
• An embodiment is attachable to vessel 30 and sealed to prevent leakage while the invention is operated in its vertical orientation. As shown in Fig.
• this can be accomplished, for instance, by having screw threads 51 attached to pump 43 and arranged such that when corresponding vessel screw threads 31 are engaged with screw threads 51 the lip 33 of vessel 30 is compressed against gasket 42, which in turn is compressed against pump 43 to create a liquid-tight seal.
• Vessel 30 is a container that holds the liquid to be sprayed.
• vessel 30 can be detachably attached to handle 20 and pump assembly 40. As shown in Fig. 2 and Fig. 3, in an embodiment, it has vessel screw threads 31 on its neck 32 and lip 33.
• vessel 30 has aft screw threads 34 on aft neck 35 positioned to mate with handle screw threads 24.
• Vessel screw threads 31 are positioned to mate with screw threads 51 on pump 43.
• neck 32 is sized to fit within sleeve 60.
• vessel 30 is sized to fit within cone 10 and, while the chemical delivery system 100 is operated by axial force, of such shape to allow vessel 30 to move within cone 10 without interference.
• vessel 30 generally cylindrical and have the uppermost portion of cone 10 be of a slightly larger diameter than vessel 30.
• the aft end 36 of vessel 30 is formed to mate with depresser 21. This embodiment has no aft screw threads to mate with handle 20.
• flow from vessel 30 is controlled by on-off switch 38, which when in the on position, allows the liquid to be sprayed, and when in the off position, prevents the liquid to be sprayed.
• on-off switch 38 rotates between two positions. In the on position, air is allowed to enter vessel 30 such at, after activating pump assembly 40, air can enter vessel 30 to equalize air pressure between the environment and the interior of vessel 30. When on-off switch 38 is in the off position, no air is able to enter vessel 30. Because no air can enter vessel 30 after pump assembly 40 has been activated, air pressure is approximately equalized between the environment and vessel 30 when pump assembly 40 is in its compressed configuration.
• on-off switch 38 is located at the aft end 36 of vessel 30. In another embodiment, on-off switch 38 is located on vessel face 39.
• Cone 10 controls the spray of the liquid from pump assembly 40.
• it is of generally conical shape.
• the aft end of cone 10 has seat 11 which is positioned such that, when force is applied axially to chemical delivery system 100, seat 11 presses against pump assembly 40 in such a manner as to compress pump 43.
• seat 11 is generally ring-shaped with no material in the center of the ring- shape such that the liquid can be sprayed from pump assembly 40 without interference.
• the aft end of cone 10 is formed to attach to sleeve 60. This attachment is made, for instance by having rim 12 engage with barbs 61. As shown in Fig.
• cone 10 is of two sections, conical shield 13 and cone cylinder 14. These two sections can be the part of the same piece of material or two separate pieces, fixedly attached to each other. This attachment can be made, for instance, with a rim and barbs similar to the connection between cone 10 and neck 60.
• cone cylinder 14 is formed to attach to saddle 22. This connection can be made, for instance, by having holes 16 sized to fit snaps 23.
• Cone 10 can be of a variety of materials, likely hardened plastic sufficient to withstand the forces applied by the user and transfer those forces to pump assembly 40 without deforming cone 10.
• Handle 20 engages vessel 30 or cone 10 to allow force to be applied by the user and ultimately press cone 10 against the ground when chemical delivery system 100 is in its vertical orientation.
• the force between the user and the ground compresses pump 43 which operates chemical delivery system 100.
• the fore end of handle 20 has female handle screw threads 24 positioned to engage with aft screw threads 34 on vessel 30.
• the female handle screw threads 24 are contained with lid 26 for vessel 30.
• lid 26 may be a separate piece from the remainder of handle 20. In this embodiment, lid 26 is fixedly attached to handle 20.
• This fixed attachment can be, for example, by intermediate male (on the fore end of handle 20) and female screw threads 26 (on the aft end of lid 26) fixedly attached to handle 10 and lid 26.
• the fore end of handle 20 has depresser 21.
• Depresser 21 is positioned to engage with the aft end of vessel 30. As shown in Fig. 5, depresser 21 engages with vessel 30 by being of a shape that conforms to the shape of a channel on the aft end of vessel 30.
• Depresser 21 is fixedly attached to pulls 25. Depresser 21 disengages from vessel 30 by pulling pulls 25, while chemical delivery system 100 is in its vertical orientation, in an upward direction.
• depresser 21 is seated inside saddle 22.
• Saddle 22 is fixedly attached to handle 20. It is rotationally attached to cone 10. This attachment can be accomplished by, for instance, having snaps 23 sized to attach to holes in cone cylinder 14 and of round shape shaped to allow saddle 22 to rotate about an axis perpendicular to the axis of cone cylinder 14. Rotating the saddle 22 and handle 20 about this axis places the chemical delivery system 100 in its open position and allow vessel 30 to removed and inserted into cone 10.
• Handle 20 can be of a length convenient for the user; typically long enough to allow an average sized user to operate chemical delivery system 100 without excessive bending of the user's back.
• the chemical delivery system 100 may be of any size. However, one example of one embodiment may comprise an overall height between 40 and 50 inches. In this embodiment, by way of example and not by way of limitation, cone 10 may be between 4 inches and 8.5 inches in diameter. Vessel 30 may be comprised of plastic will hold between 0.5 and 3 pints of fluid, but there may be larger or smaller embodiments that may include the ability to house higher or lower volumes.
• a pump assembly 40 may comprise plastic components utilizing a spring action to pump the liquid containing an active ingredient causing a spray type action to deliver the liquid to the intended target.
• Handle 20 may be attached to lid 26 in a semi permanent fashion utilizing threads, or glue, or a screw device. The user may place cone 10 over the weed or grass that will be eliminated in its vertical orientation. While pushing down on handle 20 the pump assembly 40 may release a small amount of herbicide directly on the intended target.
• Handle 20 may be attached to the lid 26.
• the lid may be attached to the vessel 30.
• the component that creates the spray action may be attached to the vessel 30 and the cone 10 may be attached to the spray action.
• handle 20 may be used to create the pump like action that triggers the release of liquid containing an active ingredient under the cone 10.
• Handle 20 may be attached to the removable lid 26, which may be attached to the vessel 30 with a male and female threaded relationship.
• Vessel 30 may contain the desired liquid containing an active ingredient.
• Individual components may be blow molded, injection molded, or purchased from existing suppliers.
• the end user may remove lid 26 and fill vessel 30 with the desired liquid containing an active ingredient, and then replace lid 26. While holding the handle with one hand, the user may place cone 10 over the intended target. With a plunger type motion triggered by the user with a downward motion of their hand on handle 20, a measured amount of liquid containing an active ingredient may be released inside the cone 10 and applied to the specific location.
• the device can be reconfigured to be used to combat insects or to fertilize new plants. It may utilize a cone for precise application of the liquid containing an active ingredient.
• the disclosure can be operated with one hand, stand up on its own for storage, and may utilize 80% less chemicals than any other device on the market.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Toxicology (AREA)
• Engineering & Computer Science (AREA)
• Insects & Arthropods (AREA)
• Pest Control & Pesticides (AREA)
• Wood Science & Technology (AREA)
• Zoology (AREA)
• Environmental Sciences (AREA)
• Catching Or Destruction (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=47422953

Family Applications (1)

Country Status (4)

Families Citing this family (1)

Family Cites Families (8)

• 2012
  • 2012-06-21 CA CA2840206A patent/CA2840206A1/en not_active Abandoned
  • 2012-06-21 WO PCT/US2012/043602 patent/WO2012177920A1/en active Application Filing
  • 2012-06-21 AU AU2012272833A patent/AU2012272833A1/en not_active Abandoned
  • 2012-06-21 EP EP12803449.3A patent/EP2723168A4/de not_active Withdrawn

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