The present invention relates to an applicator, and more particularly to an applicator with a collapsible wand and a rotatable nozzle for dispensing ready-to-use liquid products, such as fertilizer or pesticide (e.g., herbicides, fungicides, and insecticides) compositions
There are many known applicators for dispensing chemicals or other products to maintain lawns, gardens, yards, trees, shrubs, or plants. Most applicators are used with ready-to-use (“RTU”) liquids, such as fertilizers, herbicides, insecticides, and fungicides, which can be dispensed directly from the applicator. Indeed, many handheld spray devices for spraying RTU liquid currently exist. The most common spray devices have an integrated, all-in-one design where a bottle is integrally formed with or removably connected to an applicator. Such all-in-one spray devices, however, have limited functionality and usefulness. For example, the weight of the RTU liquid in the bottle can be tiring to a user when holding typical handheld spray devices.
Many conventional applicators are manually actuated or “pump-type” sprayers that rely upon the user to squeeze an actuation trigger to discharge the liquid from the sprayer. These types of sprayers often possess several drawbacks. For example, such “pump-type” sprayers require the manually actuated trigger and the nozzle to be in close proximity to one another to achieve satisfactory spray pressures and fluid velocities. This configuration reduces design flexibility and inhibits the ability to provide applicators having a nozzle located at an extended distance from the actuation trigger. Furthermore, most manually actuated sprayers do not allow the nozzle, and, in particular, the spray angle of the nozzle, to be adjusted dynamically in relation to the actuator. Instead, conventional manually actuated sprayers have a fixed nozzle at a fixed location relative to the actuator. Additionally, manually actuated sprayers tend to result in operator fatigue because such sprayers require continuous actuation of a pumping mechanism.
Other conventional applicators for dispensing RTU liquids incorporate an automatic pump, typically powered by battery. These applicators have many of the same drawbacks of the manually actuated sprayers described above. For instance, many batter powered applicators have a RTU liquid reservoir that is integrated with the applicator. Again, this requires a user to lift and carry the weight of the RTU liquid while using the applicator.
In other instances, conventional applicators may comprises a short nozzle that is proximate to where a user grips the sprayer. This configuration results in an increased risk of contact with chemical product in the event of leakage from the nozzle. Further, this configuration results in compromised aiming and spray targeting when the user operates the device.
Other battery powered applicators may be separate from a reservoir, but these applicators also have disadvantages. For example, U.S. Published Pat. Application No. 2006/0013709 by Hudson et al. (“Hudson”) describes a battery-powered spray wand having a reservoir remote from the applicator. The Hudson applicator is configured such that the housing is divided into two portions. Generally, a lower housing contains a power supply, while an upper housing contains a nozzle, motor, transmission and a pump portion. The upper housing pivots relative to the lower portion, such that a user may modify the spray angle of the nozzle by pivoting the entire top portion of the housing. The Hudson applicator has several specific disadvantages. First, the nozzle is coupled directly to the upper housing. Because the upper housing is only pivotable relative to the lower housing, the movement of the nozzle is limited to the range of pivot of the upper housing. In this configuration of the Hudson applicator, the nozzle, therefore, is only pivotable to approximately 90 degrees. The Hudson applicator is unable to provide further movement. Moreover, Hudson’s pivoting housing configuration is difficult to produce and expensive to manufacture. Further, the Hudson applicator is configured such that the power source is housed in a separate housing from the pump, motor, and transmission. This configuration creates potential reliability issues, as the liquid that is sprayed may leak into either the upper or lower housing, thereby interfering with the electrical circuitry within the applicator.
Notwithstanding the number of applicators that currently exist, most fail to provide for a reliable, user-friendly device that is cost-effective to manufacture and ship, easy to use and safe for a user to operate. The present invention, as demonstrated by the several exemplary embodiments described herein, provides an applicator with a collapsible arm with beneficial features that achieve improved functionality over conventional applicators. The applicator of the present invention offers numerous advantages, including: (1) a single housing incorporating a power source, motor, transmission, and pump, (2) a nozzle that is movable independent of and relative to the housing, and (3) a collapsible arm for connecting in fluid communication the nozzle to the housing.
The description herein of certain advantages and disadvantages of known methods and devices is not intended to limit the scope of the present invention. Indeed, the exemplary embodiments may include some or all of the features described above without suffering from the same disadvantages.
In accordance with one embodiment, an applicator is provided comprising a housing having a liquid input, a pump, a motor, and a power source; a trigger for providing selective control over the pump; a wand hingedly connected to the housing; and a nozzle coupled to the wand for discharging liquid from the applicator. The nozzle and the liquid input are in fluid communication via the pump and various conduits of the applicator.
Purposes and advantages of the exemplary embodiments will be apparent to those of ordinary skill in the art from the following detailed description together with the appended drawings, in which like reference numerals are used to indicate like elements:
These and other exemplary embodiments and advantages will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, illustrating by way of example the principles of the various exemplary embodiments.
The following description is intended to convey a thorough understanding of the embodiments by providing a number of specific embodiments and details involving an applicator with a collapsible wand. It is understood, however, that the invention is not limited to these specific embodiments and details, which are exemplary only. It is further understood that one possessing ordinary skill in the art, in light of known devices, systems and methods, would appreciate the use of the invention for its intended purposes and benefits in any number of alternative embodiments as required on specific design or other need.
Terminology used for describing particular embodiments is not intended to limit the scope of an exemplary embodiment. As used throughout this disclosure, the singular forms “a,” “an,” and “the” include the plural, unless the context clearly dictates otherwise. Thus, for example, a reference to a “conduit” includes a plurality of conduits, or other equivalents or variations know to those skilled in the art. Furthermore, if in describing some embodiments or features permissive language (e.g., “may”) is used, that does not suggest that embodiments or features described using other language (e.g., “is,” “are”) are required. Unless defined otherwise, all terms have the same commonly understood meaning that one of ordinary skill in the art to which this invention belongs would expect them to have.
The accompanying figures and following description depict and describe exemplary embodiments of an applicator for discharging liquid. As used throughout this description, the terms “applicator,” “sprayer” or other like terms are meant to encompass a structure adapted to discharge, dispense, project, spray, etc., liquid. In exemplary embodiments, the liquid to be discharged may be a fertilizer, a pesticide (e.g., herbicide, insecticide, fungicide, etc.), or combinations thereof. It should be appreciated, however, that the exemplary embodiments of the applicator described throughout are not limited to any specific embodiment or detail that is disclosed. Moreover, one of ordinary skill in the art will appreciate the use of the exemplary embodiments for their intended purposes and benefits in a number of alternative embodiments as required by specific design or other needs.
With regard to the exemplary embodiments of the applicator described herein, any part that fastens, mounts, attaches, or connects any component to form the sprayer shall not be limited to any particular type and is instead intended to encompass all known and conventional fasteners like screws, nut and bolt connectors, threaded connectors, snap rings, detent arrangements, clamps, rivets, toggles, etc. Fastening may also be accomplished by other known fitments like leak-tight seals or sealing devices. Components may also be connected by adhesives, glues, welding, ultrasonic welding, and friction fitting or deformation. Of course, combinations of these fitment systems might be used.
Unless otherwise specifically disclosed, materials for making components of the present invention may be selected from appropriate materials, such as metal, metal alloys, natural or manmade fibers, composites, vinyl, plastics, silicone, rubber, and so on. Any and all appropriate manufacturing or production methods, such as casting, pressing, extruding, molding, or machining may be used to construct the exemplary embodiments or their components.
Lastly, when describing exemplary embodiments of the sprayer, any reference to front and back or rear, top and bottom, right and left, upper and lower, etc., is intended for the convenience of describing such embodiments only. Such references do not limit the exemplary embodiments or its components to any specific positional or spacial orientation.
Exemplary embodiments of the sprayer will now be described more fully with reference to the accompanying drawings, in which some, but not all, embodiments are illustrated.
With reference to
The grip portion 110 of housing 105 may be ergonomically shaped to allow a user to comfortably grasp the applicator 100. In an exemplary embodiment, the grip portion 110 may include one or more ergonomic gripping pads or grooves (not shown). The gripping pads or grooves (not shown) may be shaped to accommodate the natural orientation of a user’s grip. In one embodiment, the gripping pads or grooves (not shown) may extend along the entire grip area 110 in a substantially elongated shape. The gripping pads or grooves (not shown) may have a varied length and width and may also be changed to conform to the various designs of housing 105 and grip portion 110.
Moreover, the housing 105 may also include a liquid input 140 for coupling with a liquid conduit, such as liquid conduit 260 depicted with reference to
Liquid input 140 may be located anywhere within the housing 105 and may be configured to couple with a liquid conduit in any number of ways. For example, liquid input 140 permanently house a liquid conduit. In another exemplary embodiment, the liquid input 140 may be threaded so that a threaded liquid conduit may be removably attached to the liquid input 140. Liquid input 140 may be removably connected to a conduit in any appropriate matter, like through threaded connectors, snap rings, detent arrangements, etc. It should be appreciated that liquid input 140 may be configured in any number of ways to provide fluid communication between applicator 100 and a liquid container, such as liquid container 400, described below with reference to
Trigger 120 may be located on the housing 105. The trigger 120 may provide a user with control over the discharge of liquid from nozzle 130. The location of the trigger 120 and the grip portion 110 may be configured to permit a user to grip the grip portion 110 and activate the trigger 120 with one hand. In other exemplary embodiments, the trigger 120 may be ergonomically shaped or may include gripping pads or grooves to allow a user to easily and comfortably actuate the trigger 120 when desired. When actuated, the trigger 120 may be configured to control the operation of various internal components of the applicator 100 in order to affect the discharge of liquid from the nozzle 130. Exemplary configurations for such internal components are described below with regard to
The wand hinge 115 may connect the wand 125 to the housing 105.
It should be understood that embodiments describing a “wand hinge” are exemplary only, and that in other exemplary embodiments the wand 125 may be hingedly connected to the housing 105. In other exemplary embodiments, the wand 125 may have hinge members (not shown) integrally molded onto it in order to facilitate motion relative to the housing 105. In another exemplary embodiment, the housing 105 may have hinge member (not shown) integrally molded onto it in order to facilitate motion relative to the wand 125. Those with skill in the art will understand that there are many other ways to configure the wand 125 and the housing 105 in order to facilitate the above-described motion of the wand 125 relative to the housing 105.
Housing conduit 255 may be configured to provide fluid communication between liquid input 140 and pump 215. Housing conduit 255 may also provide a fluid connection between pump 215 and the remaining conduits of applicator 100. Housing conduit 255 and pump 215 may be configured in any number of ways so that pump 215 may operate to pump liquid from liquid input 140, through the various conduits of applicator 100, to the nozzle 130, where the liquid may be discharged from the applicator 100 via the liquid outlet 135. Those with skill in the art will understand that any number of standard pumping mechanisms may be employed to circulate the flow of liquid through the various conduits of applicator 100. Suitable pumps include centrifugal, vane, lobe, diaphragm, positive displacement, or rotary gear pumps. While there are many different types of pumps for pumping fluid from the liquid input 140, a rotary gear pump may be effective due to its stable, non-pulsing motion, which ensures static flow during operation. The pump 215 may comprise either external gear pumps or internal gear pumps. As is commonly understood in the art, the pump 215 may use the meshing of gears to pump liquid, by displacement, from a liquid source connected to the liquid input 140. In an exemplary embodiment, the liquid source may be container 400, as described below with regard to
As depicted in
When liquid product, for example, RTU liquid product, is dispensed - i.e., when the pump 215 is activated by the trigger 120 - RTU liquid is drawn from a container, such as container 400 described below with regard to
The plurality of second nozzle conduits 245 may be formed in various configurations within second outer portion 235. In an exemplary embodiment, one or more of the plurality of second nozzle conduits 245 are configured to be in fluid communication with the first nozzle conduit 240. In other exemplary embodiments, the second outer portion 235 may be rotatable relative to first outer portion 230, such that the one or more of the plurality of second nozzle conduits 245 are configured to be in selective fluid communication with the first nozzle conduit 240, depending upon the rotation of the second outer portion 235 relative to the first outer portion 230.
Referring now to both
In the preceding specification, various exemplary embodiment have been described with reference to the accompanying drawings. It will, however, be evidence that various modifications and changes may be made thereto, and additional exemplary embodiments may be implemented, without departing from the broader scope of the embodiments as set forth in the claims that follow. The specification and drawings are accordingly to be regarded in an illustrative rather than restrictive sense.
The present application is a continuation of U.S. Application No. 16/036,501, filed on Jul. 16, 2018, which is a continuation of U.S. Application No. 15/828,079, filed on Nov. 30, 2017 and now U.S. Pat. No. 10,022,742, which is a continuation of U.S. Application No. 13/038,208, filed on Mar. 1, 2011, each of which is hereby incorporated herein by reference in its entirety.
Number | Date | Country | |
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Parent | 16036501 | Jul 2018 | US |
Child | 17747182 | US | |
Parent | 15828079 | Nov 2017 | US |
Child | 16036501 | US | |
Parent | 13038208 | Mar 2011 | US |
Child | 15828079 | US |