VARIABLE RATIO DUAL DISPENSER FOR FLUIDS
A dual dispenser includes a first container adapted to hold a first product, the first container including an end portion having at least one dispensing port and a second container adapted to hold a second product, the second container including an end portion having at least one dispensing port. The dual dispenser also includes a closure having at least one dispensing opening therein adapted to be in fluid communication with the at least one dispensing port of the first and second containers. The end portions of the first and second containers form a neck finish adapted to receive the closure. The neck finish and closure include engagement surfaces for rotatably mounting the closure on the neck finish such that the closure can rotate relative to the first and second containers. Upon rotation of the closure, the at least one dispensing port of the first and second containers are aligned or misaligned with the at least one dispensing opening of the closure so that a variable amount of first and second products are dispensed from the dual dispenser depending upon the orientation of the closure relative to the first and second containers.
This application claims priority to U.S. Provisional Application Ser. No. 62/153,198 filed on Apr. 27, 2015, the disclosure of which is incorporated herein by reference in its entirety.
FIELD OF THE INVENTIONThe present invention relates to a variable ratio dual dispenser. More particularly, the present invention relates to a variable ratio dual dispenser that stores two or more fluids separately and then dispenses the two fluids or products simultaneously at either a desired or preselected ratio.
BACKGROUNDThere are known containers, such as condiment dispensers, that control the rate of dispensing a solid substance by rotation of a closure that controls the size of the opening for dispensing the contents from a single reservoir of the solid substance. Some dispensers have multiple, small outlet holes that incrementally align with the reservoir orifice (or vice-versa) to control the rate of dispensing. Similarly, a dispenser for various fishing weights has an alignment of an orifice over only one size/compartment for weights to ensure only the desired size weight is dispensed.
There is also a known dual chamber plastic tube dispenser for use with thick liquids, as opposed to fluids, for glue, gel, crème and toothpaste. There is a commercial product, such as Avon's Tube-in-a-Tube, in which one solution is in a first tube, and a second solution is in a second, smaller tube built into the larger tube so that when the first tube is squeezed by a consumer, both tubes are squeezed and thus both the first and second solution are dispensed simultaneously.
However, there are problems with the present dual dispensers, especially for fluids, since the ratio of each fluid to the other cannot be controlled, let alone with any formulation accuracy.
Thus, there is a need for an improved dual dispenser that is cost effective, and more particularly, dispenses two or more fluid ingredients initially stored separately and mixed at dispensing in a desired/selectable ratio.
SUMMARYThe present invention provides a variable ratio, dual fluid dispenser.
The present invention also provides such a variable ratio, dual fluid dispenser that stores two or more fluids separately and dispenses the two fluids simultaneously at either a desired or preselected ratio.
The present invention further provides, in one embodiment, a variable ratio, dual fluid dispenser that dispenses the two fluids simultaneously at any one of several preselected desired ratios.
The present invention further provides, in another embodiment, a variable ratio, dual fluid dispenser that dispenses the two fluids simultaneously at any one of an almost infinite number of desired ratios.
The present invention yet further provides such a variable ratio, dual fluid dispenser that dispenses the two fluids simultaneously at any one of an almost infinite number of desired ratios in which the ratios can be altered even during use.
The present invention also provides such variable ratio, dual dispensers that can show a ratio being dispensed using a visual indicator.
The present invention provides such a variable ratio dual dispenser that can be used for a variety of consumer products.
A dual dispenser of the present invention includes a first container adapted to hold a first product, the first container including an end portion having at least one dispensing port and a second container adapted to hold a second product, the second container including an end portion having at least one dispensing port. The dual dispenser further includes a closure having at least one dispensing opening therein adapted to be in fluid communication with the at least one dispensing port of the first and second containers. The end portions of the first and second containers form a neck finish adapted to receive the closure, the neck finish and closure including engagement surfaces for rotatably mounting the closure on the neck finish such that the closure can rotate relative to the first and second containers. Upon rotation of the closure, the at least one dispensing port of the first and second containers are aligned or misaligned with the at least one dispensing opening of the closure so that a variable amount of first and second products are dispensed from the dual dispenser depending upon the orientation of the closure relative to the first and second containers. Preferably, the first and second containers comprise a flexible tube so that the first and second products are dispensed by applying pressure to the flexible tube. The first and second containers are preferably integrally formed as a single container having a dividing wall between the first and second containers and a unitary neck finish. Alternatively, the first and second containers are separately formed and each end portion includes half of the neck finish.
In an embodiment of the present invention, the engagement surfaces on the closure and neck finish include an outwardly projecting rib received in a groove. It will be appreciated by those skilled in the art that many variations of engagement surfaces may be used to allow the closure to rotate relative to the dispenser body. The closure preferably includes two dispensing openings so that the first and second products are not mixed until after being dispensed from the dual dispenser. In a further embodiment, the closure may include a mixing chamber so that the first and second products are mixed when dispensed from the dual dispenser. The first and second products may be different products having different characteristics. Alternatively, the first and second products may be the same product, but may have different colors which may be blended after dispensing.
Preferably, the closure is snap-fitted on the neck finish. The closure may include a substantially flat cap for removably sealing the at least one closure dispensing opening and to allow the dual dispenser to be supported on a surface by the closure. In one embodiment, the first and second containers include a plurality of dispensing ports. The plurality of dispensing ports include various sizes for outputting varying amounts of first and second products. The closure may include a plurality of dispensing openings for alignment and misalignment with the plurality of dispensing ports on the first and second containers. In one embodiment, the at least one dispensing port on the first and second containers is formed as a radial slot. More preferably, the radial slot tapers from a larger opening to a smaller opening to allow for better adjustment of the ratios of products being dispensed. The radial slot in fluid communication with the second container is preferably a mirror image of the radial slot in fluid communication with the first container so that upon rotating the closure openings relative thereto, an infinitely variable ratio of products form the first and second containers may be dispensed. Preferably, the closure includes a plurality of dispensing openings for alignment and misalignment with the radial slots on the first and second containers. The dual dispenser may further include markings on the closure and/or first and second containers to indicate a dispensing ratio of the first product and second product. The markings may include detents and recesses on the closure and first and second containers to provide tactile feedback of the dispensing ratio setting. In one dispensing position, the at least one dispensing port of the first and second containers are fully misaligned with the at least one dispensing opening of the closure providing a no flow storage position. The bottom end of the body, once filled with products, includes a bottom seal. Preferably, the sealed end includes means for hanging the dual dispenser on a hook or the like, such as a hole or hook. The dual dispenser may further include a vent valve in each of the first and second containers to allow air to be drawn into the container to replace dispensed product so that the dual dispenser maintains its original slope.
In an alternative embodiment, the dual dispenser further includes an intermediate component having at least two apertures thereon. The intermediate component is adapted to be mounted between the closure and neck finish to modify a size of the at least one dispensing port of the first and second containers. For example, the at least two apertures may include a plurality of holes or radial slots.
Before the embodiments of the invention are explained in detail with reference to the figures, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. The use of “including” and “comprising” and variations thereof is meant to encompass the items listed thereafter and equivalents thereof as well as additional items and equivalents thereof.
Referring to the drawings and, in particular,
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As shown in the bottom perspective view of
More specifically, dual dispenser 10 has chambers 43 and 46 that are preferably each formed as a flexible tube portion. As discussed above, each chamber 43 and 46 has one or more defined tube dispensing ports 52, 53 and 54, and 55, 56 and 57, respectively, which are matched with the closure 20 dispensing openings 23, 26. Closure 20 rotates on neck finish 50 of body tube 40 (shown in
Referring to
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The control of the products being dispensed or formulation volume/ratio can be achieved by varying the diameter and/or cross-section, or cross-sectional configuration, or number of the tube dispensing ports and closure dispensing openings. This “opening adjustment” allows dual dispenser 10 to compensate for differences in formulation viscosity, and/or desired mixture ratios, by producing a wide range of combinations of tube dispensing ports and/or closure dispensing openings.
Referring to
Dual dispenser 100 has a closure 120 and a body or dual tube 140. Closure 120 preferably has a larger diameter cylindrical skirt portion 122, and a smaller diameter, and taller, cylindrical spout portion 121 that forms a step 129, and a pair of holes or closure dispensing ports 123 and 126 formed on spout portion 121. As shown in
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Exterior cap 190 preferably has protuberances 196 that fit into closure dispensing openings so that these closure dispensing openings are sealed to prevent or minimize inadvertent dispensing of product from the dual dispenser 100. As discussed below, this exterior cap 190 with protuberances 196 preferably includes a flat top surface to permit the inverted or up-side-down placement of dual dispenser 100 for storage.
As shown in
Upon rotation of the upper portion of the closure relative to the lower skirt portion, one of the two wing ribs 184 contacts stop rib 182 when the closure and tube dispensing ports are aligned so that, e.g., product is dispensed from one chamber while the tube dispensing ports of the other chamber are completely closed or misaligned with closure dispensing openings so that no fluid can be dispensed from the other chamber. At this point, indexing bump 186 aligns or contacts one of the four indexing detents 188.
As shown in
However, the indicator elements could also be in the form of a ‘sliding scale’ of color, such as for example, a thin rectangle whose length is equivalent to the full angle of rotation of the closure. The rectangle preferably will have a diagonal line. Above the diagonal line could be, e.g., black for the product in chamber 143 and below the line could be, e.g., white for the product in chamber 146. Thus, as the closure is rotated from full black end of one hundred percent from chamber 143 to one hundred percent from chamber 146 or full white, the sliding scale would indicate relative ratio of black and white being dispensed.
Thus, the rib and detent assemblies, besides snapping into position when aligned to assure alignment, provide a tactile indicator of the alignment. The indicator system 80 provides a visual indicator of the alignment. Accordingly, a user of the dual dispenser having these features receives both tactile and visual indications that product will be dispensed at the desired/selected ratio.
A still further embodiment of a dual dispenser according to the present invention is shown in
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Analogous to outer tube 220, upper surface 245 of inner tube 240 has a number of holes or dispensing ports 252, 253, 254, 255, and 256 therein. However, dispensing ports 252, 253, 254, 255, and 256 of upper surface 245 have an opposite sizing of the dispensing ports of upper edge 225. Specifically, as shown in
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As shown schematically in
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The present invention envisions that the closure of all embodiments can be made of a polymer that is compatible for recycling. Moreover, it is envisioned that the closure can be made of the same polymer as the tubes or chambers of the dual dispenser. Such a polymer includes, but is not limited to, olefins such as polypropylene and polyethylene.
The present variable ratio dual dispensers can be used for a variety of products. Such products are, preferably, topically applied, and may be in the form of a viscous liquid lotion or gel. Such products include, but are not limited to, hair shampoo, hair gel, body lotion, ointment and sunscreen.
While the present invention has been described with reference to one or more exemplary embodiments, it will be understood by those skilled in the art that various changes can be made and equivalents can be substituted for elements thereof without departing from the scope of the present disclosure. In addition, many modifications can be made to adapt a particular situation or material to the teachings of the disclosure without departing from the scope thereof. Therefore, it is intended that the present disclosure not be limited to the particular embodiment(s) disclosed as the best mode contemplated, but that the disclosure will include all embodiments falling within the scope of the present disclosure.
Claims
1. A dual dispenser comprising:
- a first container adapted to hold a first product, the first container including an end portion having at least one dispensing port;
- a second container adapted to hold a second product, the second container including an end portion having at least one dispensing port;
- a closure including at least one dispensing opening therein adapted to be in fluid communication with the at least one dispensing port of the first and second containers;
- wherein the end portions of the first and second containers form a neck finish adapted to receive the closure, the neck finish and closure including engagement surfaces for rotatably mounting the closure on the neck finish such that the closure can rotate relative to the first and second containers, and wherein upon rotation of the closure, the at least one dispensing port of the first and second containers are aligned or misaligned with the at least one dispensing opening of the closure so that a variable amount of first and second products are dispensed from the dual dispenser depending upon the orientation of the closure relative to the first and second containers.
2. A dual dispenser according to claim 1, wherein the first and second containers comprise a flexible tube so that the first and second products are dispensed by applying pressure to the flexible tube.
3. A dual dispenser according to claim 1, wherein the first and second containers are integrally formed as a single container having a dividing wall between the first and second containers and a unitary neck finish.
4. A dual dispenser according to claim 1, wherein the first and second containers are separately formed and each end portion includes half of the neck finish.
5. A dual dispenser according to claim 1, wherein the engagement surfaces comprise an outwardly projecting rib received in a groove.
6. A dual dispenser according to claim 1, wherein the closure includes two dispensing openings so that the first and second products are not mixed until after being dispensed from the dual dispenser.
7. A dual dispenser according to claim 1, wherein the closure includes a mixing chamber so that the first and second products are mixed when dispensed from the dual dispenser.
8. A dual dispenser according to claim 1, wherein the first and second products are the same or different products.
9. A dual dispenser according to claim 1, wherein the closure is snap-fitted on the neck finish.
10. A dual dispenser according to claim 1, wherein the closure includes a substantially flat cap for removably sealing the at least one closure dispensing opening and to allow the dual dispenser to be supported on a surface by the closure.
11. A dual dispenser according to claim 1, wherein the first and second containers include a plurality of dispensing ports.
12. A dual dispenser according to claim 11, wherein the plurality of dispensing ports comprise various sizes for outputting varying amounts of first and second products.
13. A dual dispenser according to claim 1, wherein the closure includes a plurality of dispensing openings for alignment and misalignment with the plurality of dispensing ports on the first and second containers.
14. A dual dispenser according to claim 1, wherein the at least one dispensing port on the first and second containers comprises a radial slot.
15. A dual dispenser according to claim 14, wherein the radial slot tapers from a larger opening to a smaller opening.
16. A dual dispenser according to claim 15, wherein the radial slot in fluid communication with the second container is a mirror image of the radial slot in fluid communication with the first container.
17. A dual dispenser according to claim 14, wherein the closure includes closure dispensing openings for alignment and misalignment with the radial slots on the first and second containers.
18. A dual dispenser according to claim 1, further comprising markings on the closure and first and second containers to indicate a dispensing ratio of the first product and second product.
19. A dual dispenser according to claim 18, wherein the markings include detents and recesses on the closure and first and second containers to provide tactile feedback of the dispensing ratio setting.
20. A dual dispenser according to claim 1, wherein the at least one dispensing port of the first and second containers are fully misaligned with the at least one dispensing opening of the closure providing a no flow storage position.
21. A dual dispenser according to claim 1, wherein the sealed end of the dual dispenser comprises means for hanging the dual dispenser on a hook or the like.
22. A dual dispenser according to claim 1, further comprising a vent valve in each of the first and second containers to allow air to be drawn into the container to replace dispensed product so that the dual dispenser maintains its original slope.
23. A dual dispenser according to claim 1, further comprising an intermediate component having at least two apertures thereon, the intermediate component adapted to be mounted between the closure and neck finish to modify a size of the at least one dispensing port of the first and second containers.
24. A dual dispenser according to claim 23, wherein the at least two apertures comprise a plurality of holes or radial slots.
25. A dual dispenser according to claim 1, wherein the first container is concentrically located within the second container.
Type: Application
Filed: Apr 20, 2016
Publication Date: Oct 27, 2016
Inventors: Geoffrey Brace (Columbus, NC), Robert Brands (Stuart, FL), Glynn Clements (Greenville, SC)
Application Number: 15/133,706