Many applicators for cosmetic products are available. Some such applicators include a reservoir for holding a product to be applied, and a dropper for drawing product from the applicator and applying product to the user's skin, hair, etc. Alternative approaches to such applicators are desired.
The present inventors have recognized, among other things, that a problem to be solved is a need for new and alternative designs for dropper applicators for cosmetic products.
In a first non-limiting example, an applicator for use with cosmetic products comprises a cap connectable to a bottle, a depressible actuator coupled to the cap, the depressible actuator defining an interior chamber, and a shaft coupled to the depressible actuator, wherein the shaft has a channel in fluid communication with the interior chamber of the depressible actuator, wherein the shaft includes a thermal tip, the thermal tip defining an opening into the channel, wherein the thermal tip is formed from a material that stores and/or transmits thermal energy. Alternatively, or additionally, in another example, the thermal tip is formed from metal, stone, ceramic, or composites thereof, whether natural or synthetic.
Alternatively, or additionally, in another example, the thermal tip is formed from metal.
Alternatively, or additionally, in another example, the metal is stainless steel, aluminum, zinc, magnesium, tin, nickel, titanium, copper, brass, platinum, gold, or silver.
Alternatively, or additionally, in another example, the depressible actuator includes a squeeze bulb.
Alternatively, or additionally, in another example, the cap has rigid sides, wherein the depressible actuator includes a squeezable insert with an accordion structure disposed within the rigid sides of the cap.
Alternatively, or additionally, in another example, the cap has an open top. Alternatively, or additionally, in another example, the cap includes a rigid depressible button slidable within a cap insert between an upwards position and downwards position. Alternatively, or additionally, in another example, the applicator further comprises a spring configured to bias the rigid depressible button in the upwards position.
Alternatively, or additionally, in another example, the shaft and thermal tip are a single monolithic structure.
Alternatively, or additionally, in another example, the shaft is made of a different material than the thermal tip.
Alternatively, or additionally, in another example, the thermal tip is coupled to the shaft by a threaded connection.
Alternatively, or additionally, in another example, the thermal tip is coupled to the shaft by a snap connection or a friction connection. Alternatively, or additionally, in another example, the shaft is made of polymer.
Alternatively, or additionally, in another example, the depressible actuator is configured to withdraw and deliver a measured amount of product.
According to another example, an applicator for use with cosmetic products comprises a cap having a bottom for securing to a bottle, rigid sides, and an open top, a depressible actuator defining an interior chamber, the depressible actuator disposed within the rigid sides of the cap, a shaft coupled to the cap, the shaft having a channel in fluid communication with the interior chamber of the depressible actuator, and a thermal tip coupled to the shaft, the thermal tip having an opening in fluid communication with the channel in the shaft, wherein the thermal tip is formed from a material that stores and/or transmits thermal energy.
Alternatively, or additionally, in another example, the thermal tip is formed from metal, stone, ceramic, or composites thereof, whether natural or synthetic.
Alternatively, or additionally, in another example, the thermal tip is formed from metal.
According to a further example, an applicator for use with liquid cosmetic products comprises a rigid cap having a bottom for securing to a bottle, sides defining a cavity, and an open top, a depressible actuator slidably disposed within the open top of the rigid cap, the depressible actuator defining an interior chamber, a shaft coupled to the rigid cap, the shaft having a channel in fluid communication with the interior chamber of the depressible actuator, and a thermal tip coupled to the shaft, the thermal tip having an opening in fluid communication with the channel in the shaft, wherein the thermal tip is formed from a material that stores and/or transmits thermal energy, wherein liquid cosmetic product is introduced into the opening in the thermal tip by depressing and releasing the depressible actuator.
Alternatively, or additionally, in another example, the thermal tip is formed from metal.
The above summary of some example embodiments is not intended to describe each disclosed embodiment or every implementation of the present disclosure. The Figures, and Detailed Description, which follow, more particularly exemplify these embodiments.
In the drawings, which are not necessarily drawn to scale, like numerals may describe similar components in different views. Like numerals having different letter suffixes may represent different instances of similar components. The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed in the present document.
In some illustrative examples, applicator assemblies are provided for use in retrieving product (generally a liquid) from a reservoir, with an applicator having a channel inserted into the reservoir and coupled to a cap. The cap may be configured to be selectively actuated by including a squeezable or depressible element to draw the product into the channel. With product drawn into the channel, the applicator is then withdrawn from the reservoir and the squeezable element is squeezed to expel the product from the channel.
Conventional application of products to the skin is sufficient in many instances, but in other instances it also is desirable to provide a thermal treatment to the skin contemporaneously with application of the product. For example, it may be desirable to apply a cooling or heating sensation via the applicator. In some instances, it may be desirable to have the applicator provide either a heating or cooling sensation, which may offset or enhance a thermal sensation from the product or be completely independent of the product.
Thermal applicators, such as for cosmetic applicators, may include a thermal storage member that stores and/or transmits thermal energy. The thermal applicator is intended for contacting a user's skin, to provide a thermal sensation to the user. The thermal applicators are generally useful to allow a product to be applied locally or topically to a selected area of a user's skin, while providing a thermal effect.
The cap 14 is generally cylindrical in shape in this example. The cap 14 may be a polygon, if desired, or oval, or other shapes. In this embodiment, the cap 14 is generally rigid to provide a gripping surface for removing the dropper 10 from the bottle 30. The dropper 10 may be configured with a screw-on fit to the bottle 30, as shown in
In the example illustrated in
In use, the squeezable bulb 12 may be depressed or squeezed in the direction shown at 16 to reduce the interior volume of the chamber 11 in the squeezable bulb 12 and ready the dropper 10 for drawing product out of the bottle 30 or other container. Releasing the squeezable bulb 12 allows the chamber 11 in the squeezable bulb 12 to return to its original volume and shape, drawing product into the opening 24 in the thermal tip 19 and up the channel 17 in the shaft 18. The product may be a liquid. To dispense drawn-in product, the dropper 10 is removed from the bottle 30 and the squeezable bulb 12 is again depressed or squeezed, ejecting product from the opening 24 in the thermal tip 19.
In other examples, the bottom of the shaft 18 may surround or envelop an upper portion of the thermal tip 19. For such an example, the thermal tip 19 may have an upper portion with threading, a ridge or ridges, or protrusions, to be received by corresponding threading, groove(s), or recesses in the interior of the shaft 18. In still other examples, the shaft 18 may extend more or less through the interior of the thermal tip 19, extending to, or near to, the opening 24.
The thermal tip 19 may be a thermal member and the entire outer surface of the thermal tip 19 may define a tip application surface 25 providing a thermal sensation to the user. The tip application surface contacts the user's skin during or after dispensing of the product, and the user may cause the application surface to contact an even larger area of skin, for example, when the user causes the application surface to spread the product on his/her skin. By virtue of the thermal properties of the thermal tip 19, thermal energy is applied to or removed from the user's skin for heating or cooling during application. Contact of the thermal tip 19 with the product may also result in transfer of heat to or from the product. Accordingly, in some embodiments the user will feel a thermal sensation (warm or cool depending on the thermal energy in the thermal member), in other embodiments, the product will be warmed or cooled, and in still other embodiments both the product and user's skin will be thermally effected by the thermal tip 19. In some cases, the heat transfer may also minimize or alleviate pain or discomfort caused by damage to the skin.
The thermal tip 19 includes a material capable of retaining and/or transferring heat or cold. Accordingly, in some embodiments, the thermal tip 19 may be made in whole or in part of a material having a thermal conductivity above a threshold. For instance, in some embodiments, to retain and transfer sufficient heat or cold the thermal tip 19 may be made of a material having a thermal conductivity of at least 1 watt/meter-kelvin. In other implementations, thermal conductivities greater than about 5.0 watt/meter-kelvin or greater than about 20.0 watt/meter-kelvin are desirable. In still further implementations, thermal conductivities equal to or greater than about 100 watt/meter-kelvin to greater than about 400 watt/meter-kelvin are desirable.
Other material properties may also describe aspects of thermal tips 19. For instance, heat capacity of the material may also be relevant. In some embodiments, the material from which the thermal tip 19 is made in whole or in part may also have a heat capacity of at most about 1.1 kilojoules/kilogram-kelvin. In other instances, heat capacities lower than about 0.75 KJ/kg-K or lower than about 0.5 KJ/kg-K may be desirable. Moreover, thermal effusivity, which factors in a material's thermal conductivity, heat capacity, and density may be of interest. Generally, the higher the effusivity, the greater will be the heat transfer to or from the user's skin. In some embodiments materials having a thermal effusivity higher than about 150.0 J-m−2-K−1-s−1/2 may be used. In other embodiments, materials having a thermal effusivity higher than about 1,000 J-m−2-K−1-s−1/2 or higher than about 5,000 J-m−2-K−1-s−1/2 may be used. In additional embodiments, materials having a thermal effusivity of between about 8,000 and 20,000 J-m−2-K−1-s−1/2 may be used. In still further embodiments, materials having a thermal effusivity of between about 20,000 and 40,000 J-m−2-K−1-s−1/2 may be used.
In some embodiments, the heat or cold retained (for subsequent transfer) by the thermal tip 19 results from exposure to the ambient environment. That is, in some embodiments, after transfer of the heat or cold from the thermal tip 19 to the user's skin, the thermal tip 19 regenerates, i.e., reheats or re-cools, merely by being exposed to the ambient environment. For the purpose of this application, the term ambient environment refers to a comfortable indoor room temperature of between about 20° C. (68° F.) and about 25° C. (77° F.). In these embodiments and under the noted conditions, no additional heating or cooling may be required.
In some embodiments, it may be desirable to introduce the thermal tip 19 to a higher or lower temperature than ambient to “charge” the thermal tip 19 with the desired thermal energy (or lack thereof). For example, a product kit may include a bottle and a simple cap that seals the bottle, along with a separate dropper having a thermal tip. The dropper may be stored separately from the bottle and simple cap, to cool or heat the dropper while keeping the bottle at room temperature. In another example, the bottle and product may be stored at elevated or cooled temperatures, while the dropper is kept at room temperature. In one example, a product may contain alcohol, which would provide a cooling effect, and may be stored at a cold temperature, such as in a refrigerator or freezer. To avoid over-stimulating or damaging the skin, the dropper may be kept a room temperature; thus the cold product can be applied to provide the cooling effect, using a dropper that is kept much warmer to avoid any harm to the user. For example, a thermal applicator may be used in combination with a polymeric, and insulating, tube that extends through the thermal tip to the opening 24. The insulating tube will keep the product to be used at a different temperature than the thermal tip as the product is drawn into the tube; by only inserting the applicator/tube into the bottle for a limited amount of time, this temperature difference can be preserved. The combination of liquid product and thermal applicator at two different temperatures may, in some examples, provide a pleasing effect to the user.
In implementations of this disclosure, the thermal tip 19 may include one or more of metal, stone material, ceramic, or composites thereof, whether natural or synthetic, capable of retaining and transferring heat or cold for a period of time. Some example metals that may be used in embodiments of this disclosure include, without limitation, stainless steel, aluminum, zinc, magnesium, tin, nickel, titanium, steel, copper, brass, platinum, gold, and silver, and alloys, such as ZAMAK.
Stone materials that may be used in embodiments of this disclosure include, without limitation, any stone, rock, mineral, ore, gemstone, imitation gemstone, glass (including naturally occurring and man-made forms of glass), volcanic stone, coral stone, metallic stone or ore, magnetic stone, concrete, or composites thereof, whether synthetic or naturally occurring.
In one example, a thermal material is provided as an aggregate or powder that is formed into the shape of the thermal tip 19. The aggregate or powder may be stone or metal or a combination thereof, and may be molded or compressed into the desirable shape, for example. The stone and/or metal aggregate or powder may also be entrained in a polymer, which may be more readily molded using techniques such as injection molding. In other embodiments, the thermal material may be liquefied, e.g., by heating, and then cast or molded into the desired shape. In yet other embodiments, the thermal tip 19 may be machined from a blank comprising the thermal material. The application surface 25 may be smooth or textured. A textured application surface 25 may provide a relatively rough or abrasive surface that exfoliates a user's skin.
The shaft 18 may be made of a rigid or semi-rigid material, such as polyvinyl chloride (PVC), which will provide for a secure connection with the thermal tip 19. In some examples, the shaft 18 may include a liner forming the channel 17, and the liner may be formed from a material different from the shaft 18. The liner forming the channel 17 may be a hydrophobic material to aid in releasing the product from the channel 17 during application. The thermal tip may also have a liner forming the opening 24.
Unlike the bulb based devices shown in
In some examples where the cap has one or more rigid sides, the rigidity may help avoid accidental release of product from the applicator. In some examples, the overall effect may be more aesthetically pleasant, and/or may assist achieving an overall consistency of look and professional appearance.
In use, the depressible actuator 112 is depressed in the direction shown at 116 to reduce the interior volume of the chamber 111 and ready the dropper for drawing product out of the bottle 130 or other container. Releasing the depressible actuator 112 allows the chamber 111 to return to its original volume and shape, drawing product into the opening 124 in the thermal tip 119 and up into the channel 117 in the shaft 118. The product may be a liquid. To dispense drawn-in product, the depressible actuator 112 is again depressed, ejecting product out the opening 124 in the thermal tip 119.
The cap 114 may be generally cylindrical in shape in this example and has a cavity for receiving the depressible actuator 112. The cap 114 may be a polygon, if desired, or oval, or other shapes. In this embodiment, however, the cap 114 is generally rigid such that the user must depress the depressible actuator 112 only by pressing in the direction at 116. The user may be prevented from inadvertent drawing in of product or dispensing of product by such a design.
In some examples, the interior of the cap 114 may be specially shaped to match the shape of the depressible actuator 112. For example, the interior of cap 114 may be circular, and the depressible actuator 112 may have an accordion structure which is also circular. Alternatively, both the interior of the cap 114 and the depressible actuator 112 shape may be square, or any other shape. The depressible actuator 112 may be made of any suitable pliable material, such as silicone, rubber, or a pliable polymer. In some examples the cap 114 may be opaque to hide the depressible actuator 112 from sight, though this is not necessary.
The cap 114 may be configured for use as a screw-on fit on the bottle 130, as is in the example shown in
The cap insert 113 may include an upper ridge against which the lower portion of the depressible actuator 112 is pressed. For manufacturing, elements 112, 114 and 113 may be secured together using any suitable adhesive, or by any other suitable method. The cap insert 113 may also be secured to the shaft 118, with cap 114 provided as a separate element. In some examples, the cap 114 and cap insert 113 may be formed as a single monolithic element. In some examples, the cap insert 113 and cap 114 may both be made of a relatively hard or high gloss material, though any desired finish may be used including a matte finish, or a thin soft foam layer may be applied, for example.
A shaft 218 may be attached to the cap insert 213. The shaft 218 may include a channel 217 and a thermal tip 219. The channel 217 may be in fluid communication with an interior chamber 211 of the cap insert 213 and with an opening 224 in the thermal tip 219. The shaft 218 and thermal tip 219 may be constructed as discussed above with regard to the shaft 18 and thermal tip 19 shown in
In use, the depressible actuator 212 is depressed in the direction shown at 216 to compress the spring 240 and reduce the interior volume of the chamber 211 and ready the dropper for drawing product out of the bottle 230 or other container. When the depressible actuator 212 is released, the spring 240 returns to its expanded, rest position, moving the depressible actuator upwards, allowing the chamber 211 to return to its original volume, drawing product into the opening 224 in the thermal tip 219 and up into the channel 217 in the shaft 218. The product may be a liquid. To dispense drawn-in product, the depressible actuator 212 is again depressed, ejecting product out the opening 224 in the thermal tip 219. The cap insert 213 may include a piston 246 to aid in drawing product into the channel 217 in the shaft 218.
In some examples, the size of the chamber 211 is configured such that depressing and releasing the depressible actuator 212 when the thermal tip 219 is within the bottle 230 containing product results in a measured amount of product being drawn into the channel 217 and opening 224. This allows for a measured amount of product to be delivered with each use. In some examples, the measured amount of product may be between 0.05 ml to 1.0 ml. In other examples, the measured amount of product may be between 0.1 ml and 0.5 ml. In some examples, the size of the chamber 11 or 111 may also be configured to withdrawn and dispense a similar measured amount of product in the examples shown in
The cap 214, cap insert 213, and depressible actuator 212 may be cylindrical, as shown in
The cap 214 may be configured for use as a screw-on fit on the bottle 230, as is in the example shown in
In the example shown in
In some examples, the shaft 18 may be made of a different material from the thermal tip 19. The shafts 18, 118, 218, 318, 418, 518 may be formed of plastic or glass, as desired, and may be coupled to the thermal tips 19, 119, 219, 319, 419, 519 by a friction it, snap fit, or threaded connection as discussed above.
In other examples, the shaft 18 and thermal tip 19 may be made of the same material. The shaft 18 and thermal tip 19 may be formed separately and then coupled together. In other examples, a single monolithic piece forms the shaft region 618 and the thermal tip region 619, as shown in
In some alternative examples, rather than a bulbous thermal tip 19, 119, 219, 319, 410, 519, 619 illustrated in
Each of these non-limiting examples can stand on its own, or can be combined in various permutations or combinations with one or more of the other examples. The shafts 18, 118, 218, 318, 418, 518, 618 and thermal tips 19, 119, 219, 319, 419, 519, 619, 719, 819, 919, 1019 may be used with any of the actuators described above, including the bulb 12, soft button 112, and rigid button 212. Additionally, the thermal tips 719, 819, 919, 1019 may be coupled to their respective shaft by any of the described connections, including snap fit, friction fit, screw, and adhesive.
The bottle 30, 130, 230, cap 14, 114, 214, cap insert 113, 213, rigid depressible actuator 212, and shaft 18, 118, 218, 318, 418, 518 as shown and described above may be made of any suitable material such as, for example, thermoplastic elastomer (TPE), low density polyethylene (LDPE), synthetic polymer, partially of a resin such as, for example, acrylonitrile butadiene styrene (ABS), styrene acrylonitrile (SAN), pentachlorothioanisole (PCTA), polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), polyurethane, rubber, silicone, nylon, ceramic, glass, metal, or composite material, and/or combinations thereof. Moreover, various elements may be made of any combination of substantially clear, substantially opaque, and/or translucent materials. Natural materials as wood, stone or leather may be used as well for decorative or other purposes.
The above detailed description includes references to the accompanying drawings, which form a part of the detailed description. The drawings show, by way of illustration, specific embodiments in which the invention can be practiced. These embodiments are also referred to herein as “examples.” Such examples can include elements in addition to those shown or described. However, the present inventors also contemplate examples in which only those elements shown or described are provided. Moreover, the present inventors also contemplate examples using any combination or permutation of those elements shown or described (or one or more aspects thereof), either with respect to a particular example (or one or more aspects thereof), or with respect to other examples (or one or more aspects thereof) shown or described herein.
In the event of inconsistent usages between this document and any documents so incorporated by reference, the usage in this document controls.
For the following defined terms, these definitions shall be applied, unless a different definition is given in the claims or elsewhere in this specification. In this document, the terms “a” or “an” are used, as is common in patent documents, to include one or more than one, independent of any other instances or usages of “at least one” or “one or more” unless the content clearly dictates otherwise. Moreover, in the following claims, the terms “first,” “second,” and “third,” etc. are used merely as labels, and are not intended to impose numerical requirements on their objects. The above description is intended to be illustrative, and not restrictive.
As used in the above description and the appended claims, the term “or” is generally employed in its sense including “and/or” unless the content clearly dictates otherwise.
Relative terms such as “front”, “back”, “side”, “top”, “bottom”, variants thereof, and the like, may be generally be considered with respect to the positioning, direction, and/or operation of various elements relative to a user and/or other components of the device. It is to be understood that relative terms are not intended to be limiting and are only exemplary.
The above detailed description should be read with reference to the drawings in which similar elements in different drawings are numbered the same. The drawings, which are not necessarily to scale, show, by way of illustration, specific embodiments in which the invention can be practiced. These embodiments are also referred to herein as “examples.” Such examples can include elements in addition to those shown or described. However, the present inventors also contemplate examples in which only those elements shown or described are provided. Moreover, the present inventors also contemplate examples using any combination or permutation of those elements shown or described (or one or more aspects thereof), either with respect to a particular example (or one or more aspects thereof), or with respect to other examples (or one or more aspects thereof) shown or described herein. For example, the above examples (or one or more aspects thereof) may be used in combination with each other. Other embodiments can be used, such as by one of ordinary skill in the art upon reviewing the above description.
Although the invention has been described in language specific to structural features and/or methodological acts, it is to be understood that the invention is not necessarily limited to the specific features or acts described. Rather, the specific features and acts are disclosed as illustrative forms of implementing the invention.
The Abstract is provided to comply with 37 C.F.R. § 1.72(b), to allow the reader to quickly ascertain the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
Also, in the above Detailed Description, various features may be grouped together to streamline the disclosure. This should not be interpreted as intending that an unclaimed disclosed feature is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the Detailed Description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that such embodiments can be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
The present application claims the benefit of and priority to U.S. Provisional Patent Application Ser. No. 62/818,362, filed on Mar. 14, 2019, titled METAL TIP DROPPER, the disclosure of which is incorporated herein by reference.
Number | Date | Country | |
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62818362 | Mar 2019 | US |