This disclosure relates to liquid diffuser systems.
Diffusing liquids into the air has a variety of benefits. For example, inhalation of certain liquids may improve a user's respiratory health or may efficiently introduce medication into the bloodstream through the lungs. In another example, liquids can be diffused into the air as a pleasant fragrance or to mask the smell of odorous compounds. Various devices exist for diffusing liquid into the air. For example, nebulizers, diffusers, and atomizers can deliver liquid particles to the air for inhalation.
The subject matter of the present application has been developed in response to the present state of the art, and in particular, in response to the problems and needs in the art of liquid diffusers.
A diffuser apparatus is presented. The diffuser apparatus may include a gas supply line that is connectable in gas receiving communication with a pressurized gas source. The gas supply line may include an injection port facing a first direction for operably emitting a gas stream into a diffuser space in the first direction. The diffuser apparatus may further include a dome-shaped surface positioned a first distance away from the injection port. The dome-shaped surface may be in downstream fluid communication with the gas stream. The diffuser apparatus further may include a liquid feed line that is connectable in fluid receiving communication with a liquid source. The liquid feed line may include a suction port disposed on the dome-shaped surface facing a second direction. In one embodiment, the first direction and the second direction are not parallel to each other. During operation of the apparatus, passing the gas stream over the suction port suctions a particle stream through the liquid feed line in order to form a combination stream (e.g., a mixture of the gas stream and the particle stream).
In one implementation, the suction port is disposed on a crest portion of the dome-shaped surface and the gas stream is directed at a base portion of the dome-shaped surface. Further, the injection port may have a certain diameter and a second distance between the dome-shaped surface and another element opposite the dome-shaped surface may be greater than the certain diameter of the injection port. In one example, the diffuser space is a diffuser chamber and the dome-shaped surface is a protrusion on a first wall of the diffuser chamber. Further, the diffuser chamber may have a second wall, opposite the first wall, that is displaced a second distance from the first wall so as to not substantially increase the operable velocity of the gas stream across the dome-shaped surface. In other words, the injection port may have a certain diameter and the diffuser chamber may have a second wall of the diffuser chamber, opposite the first wall, that is displaced a second distance from the first wall so that the second distance is greater than the certain diameter. Further, in one embodiment the first direction is substantially perpendicular to the second direction.
Another diffuser apparatus is presented. The diffuser apparatus may include a removable component that is detachably engagable with a base. The removable component may include a liquid source, such as a liquid vial that can be replaced. The diffuser apparatus may further include a diffuser chamber that is integrated with one or the other or both of the base and the removable component. The diffuser chamber may include an injection port that is facing a first direction and that is in fluid receiving communication with a pressurized gas channel of the base. The injection port may operably emit a gas stream into the diffuser chamber in the first direction. The diffuser chamber may further include a dome-shaped surface protruding from a first wall of the diffuser chamber. The dome-shaped surface, according to one embodiment, is positioned a first distance away from the injection port in downstream fluid communication with the gas stream. Still further, the diffuser apparatus may include a suction port that is facing a second direction and that is disposed on the dome-shaped surface. The suction port may be in fluid receiving communication with the liquid source and operably passing the gas stream over the suction port may suction a particle stream from the liquid source into the diffuser chamber to form a combination stream.
According to one embodiment, the diffuser chamber may have a second wall, opposite the first wall, that is displaced a second distance from the first wall so as to not substantially increase the operable velocity of the gas stream across the dome-shaped surface. In other words, the injection port may have a certain diameter and the diffuser chamber may have a second wall, opposite the first wall, that is displaced a second distance from the first wall so that the second distance is greater than the certain diameter. In one embodiment, the liquid source is a liquid vial coupled to the removable component and at least a portion of the diffuser chamber is positioned above and open to at least a portion of the liquid vial.
During operation of the diffuser apparatus, the combination stream may contact a third wall of the diffuser chamber in order to separate a heavy fraction from a light fraction. In other words, the heavy fraction of the combination stream falls into the liquid vial and the light fraction of the combination stream passes through the vent. The apparatus may further include a securing mechanism for securing together the base and the removable component. Also, the liquid source may include a liquid vial containing essential oils. According to one implementation, the liquid vial is detachably coupled to the removable component so that the liquid vial can be replaced. The base may include a pressurized gas source in fluid providing communication with the pressurized gas channel. In one embodiment, the pressurized gas source may be an air compressor. Further, the apparatus may include a controller integrated with the base for controlling the dynamics of the gas stream. Also, the diffuser apparatus may include a user interface for regulating the controller.
A diffuser system is also presented. The diffuser system may include a base that has an air compressor in fluid providing communication with a pressurized gas channel. The diffuser system may further include a removable component detachably engaged with the base. The removable component may also be detachably coupled to a liquid vial containing essential oil. The diffuser system may further include a diffuser chamber integrated with the removable component. The diffuser chamber may include an injection port facing a first direction and in fluid receiving communication with the pressurized gas channel of the base. The injection port, according to one embodiment, operably emits a gas stream into the diffuser chamber in the first direction. The diffuser chamber may further include a dome-shaped surface protruding from a first wall of the diffuser chamber. The dome-shaped surface may be positioned at a first distance away from the injection port in downstream fluid communication with the gas stream. The gas stream, according to one implementation, is directed at a base portion of the dome-shaped surface. The diffuser chamber may also include a suction port facing a second direction and disposed on a crest portion of the dome-shaped surface. The suction port may be in fluid receiving communication with the liquid vial and operably passing the gas stream over the suction port may cause a particle stream from the liquid vial to be drawn up into the diffuser chamber in order to form a combination stream. The diffuser chamber may also include a vent for operably venting at least a fraction of the combination stream.
Reference throughout this specification to features, advantages, or similar language does not imply that all of the features and advantages that may be realized with the present disclosure should be or are in any single embodiment of the invention. Rather, language referring to the features and advantages is understood to mean that a specific feature, advantage, or characteristic described in connection with an embodiment is included in at least one embodiment of the subject matter disclosed herein. Thus, discussion of the features and advantages, and similar language, throughout this specification may, but do not necessarily, refer to the same embodiment.
Furthermore, the described features, advantages, and characteristics of the disclosure may be combined in any suitable manner in one or more embodiments. One skilled in the relevant art will recognize that the subject matter of the present application may be practiced without one or more of the specific features or advantages of a particular embodiment. In other instances, additional features and advantages may be recognized in certain embodiments that may not be present in all embodiments of the disclosure. Further, in some instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the subject matter of the present disclosure. These features and advantages of the present disclosure will become more fully apparent from the following description and appended claims, or may be learned by the practice of the disclosure as set forth hereinafter.
In order that the advantages of the disclosure will be readily understood, a more particular description of the disclosure briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the disclosure and are not therefore to be considered to be limiting of its scope, the subject matter of the present application will be described and explained with additional specificity and detail through the use of the accompanying drawings, in which:
Reference throughout this specification to “one embodiment,” “an embodiment,” or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Appearances of the phrases “in one embodiment,” “in an embodiment,” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment. Similarly, the use of the term “implementation” means an implementation having a particular feature, structure, or characteristic described in connection with one or more embodiments of the present disclosure, however, absent an express correlation to indicate otherwise, an implementation may be associated with one or more embodiments.
As stated, the diffuser apparatus 100 also includes a dome-shaped surface 120. The dome-shaped surface includes a rounded three-dimensional protruding structure. The dome-shaped surface 120 is positioned a first distance 121 away from the injection port 110. The dome-shaped surface 120 is also in downstream fluid communication with the gas stream 118. In other words, the gas stream 118 passes over the dome-shaped surface 120. The diffuser apparatus 100 further includes a liquid supply line 30 that is connectable with a liquid source 60 and that terminates at an open suction port 130. The liquid source 60 is described below in greater detail with reference to
Generally, the diffuser apparatus 100 suctions a particle stream 134 through the suction port 130 and the liquid supply line 30 from the liquid source 60. The suction required to pull the particle stream 134 from the liquid source 60 is generated by the gas stream 118 passing over the suction port 130. The particle stream 134 is a fluid stream of suctioned liquid particles. In one embodiment, the particle stream 134 is a suspension or a dispersion of liquid particles. In another embodiment, depending on the suction pressure and the volatility of the liquid 60, the particle stream 134 may include evaporated liquid particles. According to Bernoulli's principle of fluid dynamics, which is described below in greater detail with reference to
Once again, additional details relating to Bernoulli's principle of fluid dynamics are included below with reference to
In one embodiment of the diffuser apparatus 100, the dome-shaped surface 120 is the only element causing the velocity of the gas stream 118 to increase. Certain conventional nebulizers implement a nozzle or orifice that physically restricts the cross-sectional flow area, thus causing the fluid to increase in velocity as it passes through the narrowed section. However, in one embodiment, the diffuser apparatus 100 of the present disclosure does not have an element 116 in the diffuser space 119 opposite the dome-shaped surface 120 that substantially affects the velocity of the gas stream 118. In other words, even if there is an element 116 (i.e., a wall of a chamber, a separate component, etc.) opposite the dome-shaped surface 120, the distance, referred to as the ‘second distance’ 117 throughout the present disclosure, between the element 116 and the dome-shaped surface 120 is large enough so that the element 116 has no practical/substantial effect on the velocity of the gas stream 118. In other words, the second distance 117 is greater than the certain diameter 114 of the injection port 110 so that no narrowing venturi-type effect occurs.
The dome-shaped surface 120, according to one embodiment, is a 360 degree rounded dome that is has the appearance of a hemi-sphere. In another embodiment, the dome-shaped surface 120 may be an elliptical dome. For example, the height of the dome-shaped surface 120 may be larger than the width of the dome-shaped surface 120. In yet another embodiment, the dome-shaped surface 120 may only be a portion of a dome. For example, the dome-shaped surface 120 may appear as a bridge-like structure with an arcuate path extending in the first direction 112 across the top portion (crest portion) of the dome with the lateral sides removed. As shown, the dome-shaped surface can have a circular base. In other embodiments, the dome-shaped surface has a non-circular base, such as an oval, ellipse, rectangle, square (as used in a polygonal dome), or the like. In some instances, the dome-shaped surface approximates the shape of a half of a sphere. In other instances, the dome-shaped surface can have a higher or lower pitch than a half a sphere shape. The dome-shaped surface may also have other shapes and configurations, including but not limited to the shape of a corbel dome, a geodesic dome, an onion dome, an oval dome, a parabolic dome, a saucer dome, an umbrella dome, or the like. Accordingly, the dome-shaped surface 120 is defined in the present disclosure as an arcuate protruding surface that causes the velocity of a fluid flowing over the arcuate path and in the direction of the arcuate path to increase.
In
The first region 4 substantially includes the fluid flow upon initially exiting the injection port 110 and the fluid flow after passing over the dome-shaped surface 120. The second region 5 includes the fluid flow near the crest portion 123 of the dome-shaped surface 120 and the third region 6 includes the fluid flow within the suction port 130. Regardless of the composition of the fluid flow (gas stream 118, particle stream 134, combination stream 136), the regions 4, 5, 6 generally show the different flow conditions at the various locations. For example, the second region 5 has a comparatively higher velocity than the first region 4, thus causing the second region 5 to have a comparatively lower pressure. The third region 6, due to Bernoulli's principle of fluid dynamics, also represents a low pressure region where the particle stream 134 is drawn up from the liquid source 60.
As briefly described above, Bernoulli's principle of fluid dynamics essentially states that, at any point along a fluid flow path, the sum of a kinetic energy factor, a potential energy factor, and pressure energy factor is constant. In other words, ignoring the negligible potential energy factor for the purposes of this disclosure, the sum of the kinetic energy and the pressure energy at a first point in a flow path is the same as the sum of the kinetic energy and the pressure energy at a second point in the flow path. Thus, an increase in the velocity of the gas stream 118 across the dome-shaped surface 120 results in a decrease in pressure across the dome-shaped surface 120. The increased velocity of the gas stream 118 across the dome-shaped surface 120 is caused, in part, by the Coanda effect. The Coanda effect is the tendency of a flowing fluid to be attracted to a nearby surface. Thus, as the gas stream 118 flows out of the injection port 110 and contacts the curved surface of the dome-shaped surface 120, instead of deflecting away from dome-shaped surface 120 the gas stream 118 ‘bends’ to conform to the shape of the dome. Since the flow path over a curved surface is longer than a straight flow path, the velocity of the gas stream 118 increases, thus triggering the vacuum at the suction port 130. It is also contemplated that other principles of fluid dynamics may potentially affect the vacuum created at the suction port 130.
Thus, depending on the flow characteristics of the gas stream 118 and the pressure in the third region 6, the particle stream 134 may either comprise nebulized liquid particles that are suspended in the gas stream 118 to form the combination stream 136 or the particle stream 134 may comprise liquid particles that have evaporated in order to form a combination stream 136 that comprises a mixture of two vapors (two fluids in the gas phase), as briefly described above.
In
The diffuser apparatus 100 may be combined with various other components, as described below, to form a diffuser system that facilitates the diffusion/dispersion of a liquid into the atmosphere. The diffuser system may be implemented as a fragrance deployment mechanism, an inhalant atomizer, or a nebulizer (among others).
As described below in greater detail, the base 210 may have a shape and appearance that differs from the embodiment depicted in
The user interface 242 may include various controls for controlling the operation of the system 200. In one embodiment, as depicted, the user interface 242 may include various knobs and/or physical buttons which can be physically maneuvered to adjust the operating settings of the diffuser system 200. In another embodiment, the user interface may also include a digital display showing a user what settings have been selected. In yet another embodiment, the user interface may include an interactive touch-screen. Further, it is anticipated that the system 200 may be controlled via a remote user interface. For example, the diffuser system 200 may be configured to connect with a computer network. Thus, a user may control the system 200 by accessing an application on an electronic device, such as a computer, laptop, tablet, or smartphone.
The user interface 242 may control various aspects of the operation of the system 200. For example, the user interface 242 may control the on-off function of the system 200, the run time of the system 200, and/or a duty cycle (on-off cycle times) of the system 200, and/or on and off times of a duty cycle. In another example, the user interface 242 may control the volume of output produced by the system 200 (e.g., by indirectly controlling the flow of air from the pressurized gas source 50, via the controller 240). In another example, the user interface 242 can control a light, color of the light, and/or light sleep timer that turns the light off after a selected time period. In still another example, the user interface 242 can control music produced by a music player (not shown) of the system 200.
As shown, the configuration of the body diffuser system 200, with a base 210 and removable component 220 provides a convenient an aesthetically pleasing structure for diffusing liquids. Specifically, the diffuser system 200 permits the entire liquid source 60 (e.g., a vial or bottle) to be maintained within the body of the diffuser system 200 during storage and operation. This may hide the liquid source that may appear bulky, dirty, or unsightly and simplify the look, feel, and overall appearance of the diffuser system 200. Additionally, the diffuser system 200 conveniently enables a user to access the liquid source 60 by simply lifting upward on the removable component 220 to remove it from the base 210. In some embodiments, the removable component 220 separates from the base 210 with an upward force, and does not required any twisting, torqueing, unlatching, or other separate movement from the user.
The liquid source 60 may be a liquid vial 62 that holds a specific liquid or liquid mixture to be diffused. For example, the liquid source 60 may be a liquid vial 62 containing an essential oil mixture. The essential oil liquid may be one or more essential oils, including a blend of two or more essential oils. In some embodiments, the composition consists essentially of essential oils. In other embodiments, the composition consists solely of essential oils. The essential oils can be substantially pure and uncut essential oils. Essential oils are naturally occurring aromatic liquids found in the roots, stems, bark, seeds, flowers, and other parts of plants. These oils are fat soluble, non-water-based phytochemicals that include volatile organic compounds. The chemistry of any particular essential oil can be very complex and may consist of hundreds of different and unique chemical compounds. In nature, these oils give plants their distinctive smells, provide protection against disease, and assist in pollination. When separated from their parent plant, essential oils in their pure form are translucent with colors ranging from clear to pink or blue.
Suitable essential oils that can be contained within the container, in accordance with some embodiments, include, but not limited to, essential oils from one or more of the following plants (and related plant species): ajowan, almond, allspice, aloe, ammi visnaga (khella), amyris, angelica, anise, apricot, arnica, avocado, copaiba, balsam, basil, bay laurel, benzoin, bergamot, bergaptene, birch, borage, boronia, buchu, cajeput, calalmus, calendula, camellia, cannabis, caraway, cardamom, carnation, carrot, cassia, castor, catnip, cedar, cedarwood, celery, chamomile (including blue chamomile, German chamomile, Moroccan chamomile, Moroccan wild chamomile, and Roman chamomile), champaca, cilantro, cinnamon, cistus, citronella, ciste, clary sage, clementine, clove, cocoa, coconut, combava petitgrain, coriander, cornmint, costus, cumin, cypress, davana, dill, dill weed, elemi, erideron (fleabane), eucalyptus, fennel, sweet fennel, fenugreek, fir, frankincense, galbanum, garlic, genet, geranium, ginger, ginsing, grapefruit, pink grapefruit, white grapefruit, grapeseed, hazelnut, helichrysum, hemp, honeysuckle, hyssop, immortelle, fragrant aster inula, Jamaican gold, jasmine, grandiflorum jasmine, jojoba, jobquille, juniper, lanolin, lantana camara, laurel nobilis, lavender, lemon, lemongrass, lime, litsea, litsea cubeba, lotus, macadamia, mace, mandarin, manuka, marigold, marjarom, massoia, melissa, mimosa, monarda, mugwort, musk, myrrh, myrtle, narcissus, neroli, niaouli, nutmeg, oakmoss, ocotea, olibanum, opopanax, orange, blood orange, sweet orange, oregano, orris, osmanthus, palm, palmarosa, paprika, parsley, patchouli, peanut, pecan, pennyroyal, pepper, black pepper, peppermint, petitgrain, white pine, pine, primrose, ravensara anisata, redberry, rose, rosehip, rosemary, rosewood, rue, sage, sandalwood, seabuckthorn, sesame, shea, spikenard, spruce, blue spruce, St. John's wort, styrax, tagetes, tangerine, tea tree, thuja, thyme, tuberose, valerian, vanilla, verbena, vetiver, violete, vitex, walnut, wintergreen, wormwood, yarrow, and ylang ylang.
Also depicted in
A portion of the plurality of engagement surfaces define a cavity 214 shaped and sized to receive a second gas coupling mechanism 216. The second gas coupling mechanism 216 is configured to selectively connect with the pressurized gas line 52 of the pressurized gas source 50 (via a first gas coupling mechanism 253) to the gas supply line 10, as described below with reference to
Also depicted in
The diffuser system 200 may further include a securing mechanism 222 that facilitates the engagement between the removable component 220 and the base 210. For example, the securing mechanism 222 may include magnets that hold the removable component 220 in place. For example, as shown the removable component 220 can include a separate magnet 223 that is attracted to magnet of the securing mechanism 222 to hold the removable component 220 in place. Furthermore, multiple magnet pairs may be disposed between the removable component 220 and the base 210 to selectively secure the removable component 220 to the base 210. In another embodiment, the securing mechanism 222 may include a latch, a fastener, a bolt, a clasp, a tie, a strap, a pin, or a clip, among others. In other words, the securing mechanism 222 provides a degree of secure engagement between the removable component 220 and the base 210 (e.g., preventing accidental disengagement). The depiction of the securing mechanism 222 as a circular shape on the horizontal surface of the base 210 is only illustrative of one embodiment. Thus, it is contemplated that the securing mechanism 222 may, as described above, be configured in other orientations and still fall within the scope of the present disclosure. Additionally, in one embodiment the removable component 220 may not be entirely detachable from the base 210, but instead may be coupled to the base 210 via a hinge assembly or a sliding track assembly, thus allowing a user to rotate, slide, or swivel the removable component 220 into a ‘disengaged position’ in order to replace the liquid source 60.
In some embodiments, the diffuser system 200 include an engagement sensor 252 that detects when the removable component 220 is securely or properly engaged with the base 210. The engagement sensor 252 and the securing mechanism 222 may be in electrical communication with the controller 240 and the controller may include a condition that the engagement sensor 252 and/or the securing mechanism 222 are properly configured before commencing a diffuser operation. In some embodiments, the diffuser system may include one or more sensors (not shown) configured to detect when the liquid source 60 is empty. Such sensors may include one or more moisture sensors, weight sensors, or other suitable sensor(s). Furthermore, the controller, 240 may be configured to stop diffusing operations when the one or more sensors determine that the liquid source 60 is empty.
According to one embodiment, the dome-shaped surface 120 is a protrusion of a first wall 231 of the diffuser chamber 230. As briefly described above, the diffuser chamber 230 may also have a second wall 232, opposite the first wall 231, displaced a distance (second distance 117) from the first wall 231. According to one embodiment, the second distance 117 is large enough so as to not substantially increase the operable velocity of the gas stream across the dome-shaped surface 120. A third wall 233 of the diffuser chamber 230, although described in greater detail below with reference to
The liquid vial 62 in the depicted embodiment is detachably coupled to the removable component 230. As described above, the liquid vial 62 may contain a liquid to be diffused into the atmosphere through the vent 238. In one embodiment, the removable component 220 includes a vial coupling mechanism 254 that facilitates the detachable coupling between the removable component 220 and the liquid vial 62. For example, the vial coupling mechanism 254 may include a threaded member that interacts with a standard essential oils vial, according to one embodiment. In another embodiment, the vial coupling mechanism 254 may include spring-loaded clips, straps, ties, fasteners, etc.
The removable component 220 may also include a first gas coupling mechanism 253 for detachably coupling the gas supply line 10 to the pressurized gas source 50 via the pressurized gas channel 52. The first gas coupling mechanism 253 may be a rubber gasket (as shown), one or more O-rings, or another suitable structure configured to make a substantially air-tight seal between pressurized gas channel 52 and the second gas coupling mechanism 216 of the gas supply line 10. As shown, the second gas coupling mechanism 216 can be shaped and sized or otherwise configured to selectively fit over the first gas coupling mechanism 253. In this position (as shown), the second gas coupling mechanism 216 can connect to and/or couple with the first gas coupling mechanism 253 to make a substantially air tight seal. Gas may then flow from the pressurized gas source 50 through the pressurized gas channel 52 the connected first gas coupling mechanism 253 to the gas supply line 10. As shown, in some embodiments, the second gas coupling mechanism 216 can be a female coupling mechanism having an internal cavity configured to selectively receive the first gas coupling mechanism 253, which can be a male coupling mechanism. When joined, the two coupling mechanisms can form a press fit, air-tight connection. In other embodiments, the second gas coupling mechanism 216 may be a male coupling mechanism and the first gas coupling mechanism 253 may be female coupling mechanism. In still other embodiments, these two parts may have other shapes, sizes, and configurations that permit a substantially air-tight seal therebetween when they are selectively coupled.
Conveniently, as shown, the first gas coupling mechanism 253 and the second gas coupling mechanism 216 may be selectively coupled and decoupled by the mere action of joining and separating, respectively, the removable component 220 from the body 210 of the diffuser system 200. In some embodiments, one or more securing mechanism 222, such as a magnet, may secure the removable component 220 in place on the body 210 to ensure a complete connection of the first gas coupling mechanism 253 and the second gas coupling mechanism 216. Additionally or alternatively, the weight of the removable component 220 and the liquid source 60 can provide the downward force necessary to completely couple the first gas coupling mechanism 253 and the second gas coupling mechanism 216.
The removable component 220, according to one embodiment, includes a liquid supply line 30 that is fixed to the removable component 220 but that extends into the replaceable liquid vials 62 to draw up liquid particles (particle stream 134) when a suction force is generated by the diffuser apparatus 100. The liquid supply line 30 can be a flexible tube, rigid tube, or other suitable structure. The liquid supply line 30 may be configured to reach to the bottom of a liquid vial 62 attached to the removable component 220 so that it may access all of the liquid in the liquid vial 62.
The described features, structures, advantages, and/or characteristics of the subject matter of the present disclosure may be combined in any suitable manner in one or more embodiments and/or implementations. In the above description, numerous specific details are provided to impart a thorough understanding of embodiments of the subject matter of the present disclosure. One skilled in the relevant art will recognize that the subject matter of the present disclosure may be practiced without one or more of the specific features, details, components, materials, and/or methods of a particular embodiment or implementation. In other instances, additional features and advantages may be recognized in certain embodiments and/or implementations that may not be present in all embodiments or implementations. Further, in some instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the subject matter of the present disclosure. The features and advantages of the subject matter of the present disclosure will become more fully apparent from the above description and appended claims, or may be learned by the practice of the subject matter as set forth above.
In the above description, certain terms may be used such as “up,” “down,” “upper,” “lower,” “horizontal,” “vertical,” “left,” “right,” and the like. These terms are used, where applicable, to provide some clarity of description when dealing with relative relationships. But, these terms are not intended to imply absolute relationships, positions, and/or orientations. For example, with respect to an object, an “upper” surface can become a “lower” surface simply by turning the object over. Nevertheless, it is still the same object. Further, the terms “including,” “comprising,” “having,” and variations thereof mean “including but not limited to” unless expressly specified otherwise. An enumerated listing of items does not imply that any or all of the items are mutually exclusive and/or mutually inclusive, unless expressly specified otherwise. The terms “a,” “an,” and “the” also refer to “one or more” unless expressly specified otherwise.
Additionally, instances in this specification where one element is “coupled” to another element can include direct and indirect coupling. Direct coupling can be defined as one element coupled to and in some contact with another element. Indirect coupling can be defined as coupling between two elements not in direct contact with each other, but having one or more additional elements between the coupled elements. Further, as used herein, securing one element to another element can include direct securing and indirect securing. Additionally, as used herein, “adjacent” does not necessarily denote contact. For example, one element can be adjacent another element without being in contact with that element.
As used herein, the phrase “at least one of”, when used with a list of items, means different combinations of one or more of the listed items may be used and only one of the items in the list may be needed. The item may be a particular object, thing, or category. In other words, “at least one of” means any combination of items or number of items may be used from the list, but not all of the items in the list may be required. For example, “at least one of item A, item B, and item C” may mean item A; item A and item B; item B; item A, item B, and item C; or item B and item C. In some cases, “at least one of item A, item B, and item C” may mean, for example, without limitation, two of item A, one of item B, and ten of item C; four of item B and seven of item C; or some other suitable combination.
Numerical data may be expressed or presented herein in a range format. It is to be understood that such a range format is used merely for convenience and brevity and thus should be interpreted flexibly to include not only the numerical values explicitly recited as the limits of the range, but also as including all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited. As an illustration, a numerical range of “about 1 to 5” should be interpreted to include not only the explicitly recited values of about 1 to 5, but also include individual values and sub-ranges within the indicated range. Thus, included in this numerical range are individual values such as 2, 3, and 4 and sub-ranges such as 1-3, 2-4, and 3-5, etc. This same principle applies to ranges reciting only one numerical value and should apply regardless of the breadth of the range or the characteristics being described.
The term “substantially” means that the recited characteristic, parameter, or value need not be achieved exactly, but that deviations or variations, including for example, tolerances, measurement error, measurement accuracy limitations and other factors known to those of skill in the art, may occur in amounts that do not preclude the effect the characteristic was intended to provide.
The present subject matter may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
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