The invention relates to a variety of bottle designs having a top and bottom opening with either a pump or one-way valve coupled to the top opening to enable substantially all of the contents of the bottle to be dispensed therefrom by the pump action or from squeezing the bottle by the user.
Bottles for dispensing household fluid products, such as lotions, soap, hair products, face creams and the like, often have a single top opening making it difficult to dispense the product as the content of the product within the bottle is diminished. In some cases, the bottles are turned over and when the viscosity of the product is high it may take a considerable amount of time to dispense the product. Some bottles utilize a pump with a fluid conduit extending down into the bottle and the shape of the bottle prevents a substantial amount of the product from being dispensed. Many of these products, especially face creams and hair products can be expensive and wasting the product due to difficulty removing or dispensing the product from the bottle costs the consumer money.
There are many bottles in the prior art and market that generally are comprised of any number of common features that include shape, rigidity, opacity, a pump or are squeezable without a pump, a dispenser such as a spout, sprayer, or diaphragm, a tube if the dispenser is at the top of the bottle, and a lid or cap that attaches to the top or bottom of the bottle. A high majority of bottles in the prior art do not address features that are directed to total-use of the content.
The invention is directed to a total-use dispenser for dispensing a fluid product therefrom. An exemplary total-use dispenser has a body forming an enclosure having both a top opening and a bottom outlet and a tapering portion that tapers down toward the bottom outlet. An exemplary total-use dispenser utilizes a pump coupled with the top opening to dispense the fluid product from the dispenser. An exemplary total-use dispenser has a pump configured in the top opening that pumps air into the body to force fluid product therefrom. The pump may be a diaphragm pump or pump with a stem and handle that are moved into and out of the body of the total-use dispenser. The fluid product may be dispensed from a bottom outlet or from a spout coupled with a spout conduit that extends into the body of the total-use dispenser. The total-use dispenser enables substantially all the fluid product to be dispensed from the enclosure, such as at least 90% by weight, at least 97% by weight and most preferably 99% or more by weight.
An exemplary body of has a shape to enable efficient dispensing of fluid-product from the enclosure. An exemplary body has a top opening and a bottom outlet and a tapering portion that tapers to the bottom outlet. An outlet extension may extend from or be part of the tapering portion and may extend outward from beneath the retainer portion of the body to allow easy dispensing when configured in a stand. The bottom outlet may be configured an offset distance from the body.
The retainer portion may be configured between the tapering portion and the top opening and may be uniform in cross section and may be circular or oval in cross section. The body may have a grip portion configured proximal to the top opening to enable the body to be held while interfacing with a pump in the top closure. An exemplary grip portion may have a plurality of indentations that may be configured to couple with a person's fingers. The body may have an hourglass shape with a smaller portion configured between larger portions above and below. The body may have an upper portion and a lower portion and the lower portion may be smaller in cross-sectional size or diameter than the upper portion.
In all cases, the body tapers toward the bottom outlet to direct the fluid product to flow to the bottom outlet. A product cup may be coupled to the body over the bottom outlet and may be detachably attachable to the body. The product cup may have threads that enable the product cup to be threaded over the bottom outlet. The product cup may be removed to utilize a small remaining amount of fluid product collected therein.
A diaphragm may be configured over the bottom outlet to control the release of fluid product through the bottom outlet. The diaphragm may be coupled with the body or the product cup. The product cup may have a bottom cap that can be opened to allow fluid product to be dispensed through the bottom outlet and the product cup. The bottom cap is hinged and may be closed over the bottom outlet to seal the fluid product from release through the bottom outlet. The bottom cap may be detachably attachable to the product cup or may be attached by a hinge to allow the fluid to be dispensed through the product cup.
Fluid product may be dispensed through a spout that has a spout conduit that extends down to close proximity with the bottom outlet. The spout may have a stopcock to open and close so fluid product flows through the spout. The spout may be pivotable about the stopcock to open and close the stopcock. The spout may extend out from the body, such as from the side, or from the top closure. The spout may extend out from the side of the body in an upper portion, or portion that is above a midpoint of the height of the body, or from a lower portion, or a portion that is below a midpoint of the height of the body. The spout conduit may extend along the inside or outside surface of the body down toward the bottom outlet and may extend into the product cup or bottom cap.
The bottom outlet or product cup may have an angled fluid deflector that extends from an upper side to a lower side to direct fluid product down toward the lower side. The deflector may be angled or have a curved surface from an elevated position down to a lower position where the diaphragm is located. The bottom outlet may be configured on the lower side to ensure almost all of the fluid product may be dispensed from the total-use dispenser. The spout conduit inlet may be configured just over the lower side of the angled fluid deflector to allow almost all of the fluid product to be forced into the spout conduit and dispensed through the spout.
A spout may have a rotatable spout valve, wherein in one rotational orientation, the spout is closed and wherein in a second rotational orientation the fluid is dispensed from the spout, such as by flow and/or spray. There may be two or more dispensing options, such as flow and spray. A user may want to spray the fluid over a larger area or just have it flow out in a stream.
The body may be rigid and be made of rigid material, such as glass, or hard plastic that is not easily deformable by hand. Alternatively, the body may be formed from a deformable material, such as deformable plastic to allow product to be squeezed from the total-use dispenser. The total-use dispenser may be squeezed to force fluid product through the bottom outlet or a spout. A squeeze bottle, as used herein, is a bottle that is deformable and resilient to allow the bottle to be squeezed by hand and deformed, thereby producing an increased pressure in the bottle to dispense the contents within the bottle. A diaphragm or a pump air conduit may be configured to allow air to enter into the body after fluid product is dispensed, in order to equalize the pressure within the body. As described herein a diaphragm may be configured over the top opening or bottom outlet. The diaphragm or pump-air conduit may be coupled with the top closure. A diaphragm may be configured over the bottom outlet or coupled with the product cup or bottom cap. A diaphragm in the bottom outlet may control the release of fluid product through the bottom outlet. A diaphragm in the bottom outlet may have one or more slits in an elastomeric material to allow the diaphragm to open for fluid product dispensing therethrough.
The body may be translucent or transparent to enable a user to see the level of fluid product within the enclosure. A head space may be formed between the fluid and the top opening within the enclosure. A body may have a grip portion configured proximal to the top of the body having a plurality of indentations, such as grooves, extending around at least a portion of the body, or neck of the body. The grooves may be configured to allow fingers to rest therein to ensure a firm grip on the body.
An exemplary total-use dispenser utilizes a pump for dispensing fluid product from the enclosure. A pump may include a diaphragm that allows air to enter into the enclosure. A pump may be used in combination with a deformable body that is a squeeze body, a body that can be squeezed to increase a head pressure over the fluid product within the enclosure. A diaphragm may enable air to enter into the enclosure to allow the squeezed body to return to an original shape. In another embodiment, a diaphragm pump is configured with a diaphragm that is configured for a user to press and deform to force air into the enclosure to increase a head pressure and force fluid product from the bottom outlet. A diaphragm pump may be configured in a top closure or cap and may be detachable from the body.
An exemplary pump may include a stem and pump handle. An insert end of the stem may extend into the enclosure and the exposed portion of the stem may extend to the pump handle. A pump handle may be pressed into the body to force air into the enclosure to increase the head pressure and force fluid product from the enclosure. In an exemplary embodiment, a pump stem may extend at a stem offset angle to make more ergonomic use of the pump when grasping the top of the body, such as when grasping the grip portion around a neck of the body. The stem offset angle from a vertical axis or longitudinal axis of the total-use dispenser body may be about 10 degrees or more, about 15 degrees or more, about 25 degrees or more, about 35 degrees or more, about 45 degrees or less or any range between and including the offset angle provided. A pump may have a fluid conduit that extends down into the enclosure to a fluid conduit inlet. The inlet may be configured proximal to the bottom outlet cover and may have a gap distance there between that is small, such as less than about 10 mm, less than about 7 mm, less than about 5 mm, less than about 3 mm and any range between and including the values provided.
The total-use dispenser may have a plurality of legs to support the body in an upright configuration. The legs may be three or more and may be coupled with a detachable stand. The detachable stand may have an opening for receiving the body of the total-use dispenser.
A method of use includes removing the total-use dispenser from a detachable stand and then squeezing the body to dispense fluid product from the bottom outlet. A bottom cap may have to be opened first to enable the fluid product to flow through the bottom outlet. Also, the fluid product may be dispensed through a spout when the body is squeezed. Alternatively, a pump may be pumped to dispense fluid product through the bottom outlet or a spout. Finally, a dispenser pump configured in the top opening may be utilized to dispense fluid product through the pump outlet. The dispenser pump may be used with the total-use dispenser configured in the detachable stand. Again, the pump stem of the dispenser pump may be angled to provide more ergonomic use while holding the total-use dispenser. Likewise, fluid product may be dispensed through the bottom outlet or a spout when the body is squeezed or when a diaphragm is actuated, again when the total-use dispenser is in or out of the detached or attached stand.
The pump of the present invention may be an inline piston air pump that includes a piston, piston rod, cylinder, a spring, and/or one-way air valves. A top stem of the pump is configured to be depressed by a user forcing air into the container body above the fluid product to increase the pressure in the head space above the fluid product. This increased pressure causes the product to be dispensed at an outlet due to the increased pressure. The pump stem has a spring that returns the stem to its top traverse position while air valves balance the internal air pressure and refill the pump for the next time it is depressed. The use of a pump occurs with rigid containers; whereas the deformable container body dispenses fluid product by the user squeezing the bottle, after which a one-way air valve at the top of the container allows air to refill the container by equalizing the air pressure within so that the body may return to its standing or resting shape.
The present novel invention relates to a unique combination of bottle features that derive unique methods of use that allow the content to be totally dispensed by one or more methods in the same bottle. The combination of invention features creates a system that is more than the sum of its parts because these features in each embodiment are necessary to achieve a bottle that allows for the total-use of the content. If these features were readily surmisable by someone skilled in the art, then the embodiments and combination of features in the art would have been patented long before this invention. In this novel invention, the discriminating differences include openings at the top and bottom of the bottle, smooth sides down to the bottom opening or lowest spout, threads to screw on a cap or lid that are on the outside of the bottle so the inside portion is smooth, a novel design of the cap that includes a concave or offset concave diaphragm, a novel design of the tube going from the bottom of the bottle at the diaphragm up to the capped spout or sprayer that is flush and smooth on the inside of the bottle, and the novel use of an air pump and air valves as a means to dispense contents as described herein. To clarify the differences, background on the air pump followed by the novel bottle features and dispensing methods follows.
The industry standard for bottles with pumps in the prior art and market is called a “Reciprocating Positive Displacement Piston Pump.” This fluid pump uses a single valve and a piston to create less pressure to “draw” or suck fluid into a chamber. The piston dispenses the fluid when a user presses down on a finger pump or squeezes a spray trigger located on the top of the bottle. After the downward finger press, a spring causes the presser back to the up position, which creates negative pressure in the chamber that draws fluid into the piston so the bottle is primed to dispense the fluid content when the finger pump is pressed or trigger pulled the next time.
The pump described herein, and intended for use in the rigid bottle embodiments, is a “Reciprocating Inline Piston Air Pump.” This air pump has an inline cylinder and piston and uses two or more opposing one-way valves. It is the same type of pump used in a standard tire or sports ball pump with one notable difference: it requires a spring to return the pump piston to the top, where air refills the cylinder. In this application, the general use of the term “pump” then refers to the reciprocating inline piston air pump unless noted otherwise.
When a user of the air pump presses down on the novel curved finger pump, the valve on the piston closes to prevent a loss of pressure. The air flows into the bottle and increases pressure inside, which pushes or dispenses fluid out through the selected spout or diaphragm. At the end of the piston stroke, as the spring returns the finger pump to the up position, the opposing valve opens to allow air to refill the cylinder chamber for the next pump action.
The two pump systems each have advantages and disadvantages between them. Fluid pumps work best when there is continuous fluid without air or bubbles in the fluid. A drawback, however, is reduced performance due to negative pressure. In a closed system, the bottle cannot equalize the pressure inside as fluid is dispensed, which creates negative pressure, causing the bottle walls to collapse inward in a flexible bottle and the fluid pump to become less effective. When this happens, users may encounter a shortening of the pump stroke length, or a collapsed bottle where the user must open the container to equalize the pressure. In a bottle with an air pump, the internal air pressure in the bottle equalizes automatically when the content is dispensed. By using a rigid bottle material, such as glass, the gradual release of the compressed air as the fluid is dispensed works as well as the fluid pump since the bottle and fluid contents are not compressible. The air pump has a limitation in that it does not function well with non-rigid, flexible bottles, but a flexible bottle is typically squeezed to dispense contents without the use of a pump of any type.
The curved inline air pump of this invention has four advantages: 1) Increased reliability due to the pump's separation from the dispensing lines such as a tube and spout; 2) An ergonomic thumb pump and curved plunger, which improves pump efficiency and user comfort; 3) A simple design, which may reduce production costs; and 4) The versatility to accommodate non-obvious, unique combinations of dispensing components (spouts, tubes, diaphragms, etc.) used at the tops and bottoms of bottles. In summary, the air pump allows for a number of embodiments tailored to specific methods and applications of use as described herein.
Aside from the pump type when used, the bottles in this application have many features in common that may be combined as necessary and sufficient components to define each bottle embodiment and its method(s) of use so that as the bottle is emptied, the content is totally dispensed. One way to define total-use dispensing is a subjective assessment by the user that the amount of content remaining in the bottle is less than a useful portion or too small in fluid volume to be considered worth trying to extract. The notion of total-use is objectively and technically defined later in the application based on percentage of content weight.
The novel combinations of features for the embodiments described and their methods of dispensing include but are not limited to the air pump, use of a one-way gravity-closed pressure equalization valve (i.e., a vent with a flap cover), novel bottle shapes and smooth inside surfaces, the use of a tube that is part of the bottle mold itself, the use of more than one lid and cap at the top and bottom of the bottle, the novel design of the diaphragm, and the types of legs or base used for the bottle that facilitate total-use of the contents by the dispensing method. A person skilled in the arts should recognize that the novel combinations of component features yield a total-use of the contents unlike any other prior art or market bottle by embodiment design and method of use by both objectively defined and subjective assessments of total-use dispensing of the content. The rest of the background describes the specific components or functional features that combine to produce novel total-use bottle embodiments.
There are two types of bottles: a rigid bottle that requires an air pump and a flexible bottle that dispenses by physically squeezing the bottle. There are three primary apparatuses or means from which fluids are dispensed out of a bottle: By a cap and lid usually with a diaphragm at the bottom of a bottle, by a spout that produces a continuous flow coming out from the lower portion of the bottle, or by a spout or sprayer located halfway or higher up on the bottle in which case a tube coming from the bottom to the spout is required. There is not an embodiment in this application where the bottle must be turned over in order to wait for the fluid content to flow to the inverted top lid to be dispensed through an opening. This method of dispensing is very common in many bottles in the prior art and commercial market.
There are three means by which a user holds a bottle in order to dispense fluid: By a hand grip at the top of the bottle to conveniently press a pump with a curved shaft, in the middle of the bottle where the user squeezes it, and from the lower section of the bottle also for squeezing to dispense the content. The hand grip areas at the top, middle, or lower portions of the bottles confer certain shapes and diameters that facilitate the function of gripping the bottle with one hand to either press the pump or squeeze the bottle for tailored uses. In the three instances, the bottle diameter must be small enough so that the bottle can be easily gripped to press the pump plunger or to squeeze the bottle as the dispensing means.
Bottles may be designed from top to bottom with smooth inner surfaces without any kind of ridges or shapes where the fluid contents may be retained against the inside wall. Bottles may gradually angle down and in toward the bottom (lowest part) of the bottle so fluid flow is facilitated. Bottles may have bottoms that gradually curve down toward a lower spout such that the end of the spout is the lowest part of the bottle. The other more common design is a gradual taper down to the bottom cap and diaphragm area. The bottom of the bottle with a cap and lid may have the threads on the outside surface so that the inside of the bottle is smooth. Hence, the cap and lid screw onto the outside, but the bottle itself is unique with this thread design and bottom configuration of the cap, its lid, and the tapered diaphragm as part of the cap and lid.
In order for the user to be aware of the amount of fluid remaining in the bottle, the bottles may be clear, nearly clear (low opacity) or if some of the bottle is opaque, then a sizable portion of it must be clear enough so that the user can readily view the amount of fluid content remaining down to the bottom. The preferred design is a clear bottle where the manufacturer of the fluid content affixes labels onto the bottle but leaves an area exposed to see the content level to the bottom. This is an important condition to gauge level and observe that contents are totally used as operationally defined.
The top will have either a novel curved thumb pump or a simple air valve or breather vent with a flap design where any action to dispense will keep the vent closed, but when the pressure is released, the vent flap opens and air flows through to equalize the pressure inside the bottle with the outside. All tops may be detachably attachable so they can be removed by the user for cleaning for recycling or reuse. The top opening may be used for refilling when the bottle can be reused with the same product (such as kitchen hand soap). The top of the bottles may have the threads on the outside of the bottle so that the inside within the bottle is smooth similar to the bottom opening.
The bottom dispenser may be composed of a cap, lid, threaded attachment, and a diaphragm. As stated, the inside of the bottle at the threads and circular opening may be smooth. The diaphragm may be part of the cap and lid and tight fits with the inside bottle. There are three diaphragm options: A centered concave diaphragm that tight fits with the inside of the bottle, an offset concave diaphragm at the lowest point of a curved or tapered bottom where the diaphragm is positioned directly under a tube when an upper spout is used, or no diaphragm may be used if the fluid is thick enough and the opening properly sized.
The bottles may have three, four, or five legs. The legs may be either a permanent part of the manufactured bottle or detachably attachable legs may be used that attach onto the bottle. If a spout is used and three legs are used, then one of the legs must be on the direct opposite side of the spout. If four legs are used with a spout, the spout must be between one of the leg pairs below it so that the legs do not interfere with the dispensing process. The bottom lid and cap may be on the same plane as the bottom feet of the legs so that the cap rests on the surface to provide added support and to confirm the cap is properly closed so no leakage occurs. In short, this feature has two functional benefits.
The intent for bottles with detachably attachable legs is to create decorative and artful designs so the bottles have an aesthetic quality to them. There is also an economic advantage to having detachably attachable legs because consumers can purchase replacement bottles and reuse the decorative legs or change the decorative style of the bottle as desired. The detachably attachable decorative legs may extend over the bottle and attach under the screw-on top cap as an alternative means to attach and secure the legs.
When a spout or spray dispenser is used from the middle to the top of the bottle, a tube is required. The tube may be part of a two-piece injection mold where the two sides are joined to create a closed tube. The key feature of the tube is that it may be flush with the inside of the bottle so there are no grooves where the content might collect. This may be accomplished by the tube being on the outside of the bottle or if the tube is inside the bottle to some degree, the outside surface may have a normal distribution curve shape along its length so there are no grooves in this configuration as well. Tube diameter may be determined by the viscosity of the content to be dispensed or the limits of the injection mold manufacturing process. The bottom of the tube may have a sine wave or irregular edge at the end so that the tube cannot become obstructed with the diaphragm or inside of the lid to where fluid flow is impeded. The tube may be designed so that it ends alongside the offset concave diaphragm so that it draws content from the lowest point of the bottle.
The end of a dispenser spout may have a hinged plug to cover the spout to prevent leakage and drying of the content, which may happen if the orifice spout sat open for some period of time. The plug may be placed inside the end orifice similar to putting a stopper on a wine bottle to seal it. The hinged plug may be part of the mold when composite material is used, or if the bottle is glass, a detachably attachable snap-on hinged plug may be used.
In summary, The invention embodiments are novel in the combination of components such as the shape of the bottle, the smoothness of the inside of the bottle where the content is contained, bottle opacity, the way the bottle is held to best dispense the content, the key use of more than one threaded opening used at the top and bottom of the bottle as multiple methods to dispense the content, the use of an air pump, the use of a one-way valve (vent with flap) for equalizing pressure inside the bottle, the use of a novel tube that runs from the bottom of the bottle to push the fluid content up to the dispenser, the use of a centered or offset concave diaphragm to control the dispensing of content, the type of legs or base on which the bottle stands when not in use, the use of a plug at the dispenser to prevent content leakage or drying from exposure, and how the combination of these components features impart the specific method of use for the given embodiment. The method of use to achieve total-use are the multiple openings and the manifold physical features described herein that are necessary to facilitate the flow of content to the bottom for total dispensing. The summary of the invention is provided as a general introduction to some of the embodiments of the invention, and is not intended to be limiting. Additional example embodiments including variations and alternative configurations of the invention are provided herein.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention.
Corresponding reference characters indicate corresponding parts throughout the several views of the figures. The figures represent an illustration of some of the embodiments of the present invention and are not to be construed as limiting the scope of the invention in any manner. Further, the figures are not necessarily to scale, some features may be exaggerated to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.
As used herein, the terms “comprises,” “comprising,” “includes,” “including,” “has,” “having” or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Also, use of “a” or “an” are employed to describe elements and components described herein. This is done merely for convenience and to give a general sense of the scope of the invention. This description should be read to include one or at least one and the singular also includes the plural unless it is obvious that it is meant otherwise.
Certain exemplary embodiments of the present invention are described herein and are illustrated in the accompanying figures. The embodiments described are only for purposes of illustrating the present invention and should not be interpreted as limiting the scope of the invention. Other embodiments of the invention, and certain modifications, combinations and improvements of the described embodiments, will occur to those skilled in the art and all such alternate embodiments, combinations, modifications, improvements are within the scope of the present invention.
A pump is shown in the figures and the pump may be an inline piston air pump. It is to be understood that the pump may include a piston, piston rod, cylinder, a spring, and/or one-way air valves; therefore, these components are not depicted or labeled in the figures. The external components are depicted and labeled however.
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The pump 41 is configured in the top closure 40 and extends through the top opening 32 and comprises a pump stem 42 that extends from an insert end that is configured inside of the enclosure 31 to an extended end 48 where the pump handle 46 is coupled. The pump stem has a pump valve inlet to allow air into the pump to equalize the pressure. The pump stem extends along a stem axis 43 that is at a stem offset angle 44 from a vertical axis 45. The vertical axis is along the longitudinal axis of the bottle from the bottom to the top. This enables a person to operate the pump more easily with their thumb when holding the body in their hand. The pump stem extends down into the body at the pump outlet 29 where air is pumped into the body to dispense the product. The body may have a grip portion 70 comprising a plurality of indentations 72 configured to receive a person's fingers along the neck 76 of the body. The neck of the body may also be smaller in cross-sectional area than the retainer portion. This reduced cross-section may facilitate gripping the grip portion while pumping the fluid from the bottom outlet via the pump.
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It will be apparent to those skilled in the art that various modifications, combinations and variations can be made in the present invention without departing from the scope of the invention. Specific embodiments, features and elements described herein may be modified, and/or combined in any suitable manner. Thus, it is intended that the present invention cover the modifications, combinations and variations of this invention provided they come within the scope of the appended claims and their equivalents.
This application is a continuation of U.S. patent application Ser. No. 17/723,993, filed on Apr. 19, 2022 and currently pending, which claims the benefit of priority to U.S. provisional patent application No. 63/176,810, filed on Apr. 19, 2021; the entirety of each prior application is hereby incorporated by reference herein.
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Number | Date | Country | |
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63176810 | Apr 2021 | US |
Number | Date | Country | |
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Parent | 17723993 | Apr 2022 | US |
Child | 18129889 | US |