Patent ID: 12257115

DETAILED DESCRIPTION

Before describing the invention in detail, it is to be understood that this invention is not limited to particular head or handle components, or devices, which can vary. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” also include plural referents unless the context clearly provides otherwise. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting. Further, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

The present disclosure relates to devices and components thereof that include one or more rotational components of use in numerous applications. In some embodiments, for example, rotational components include cleaning and/or polishing implements that are used in various household or industrial sanitization applications. In other exemplary embodiments, rotational components include assorted combinations of dental implements (e.g., bristles (nylon, silicone, thermoplastic elastomers (TPE), and the like), flossing components, polishing components (e.g., prophy cups, etc.), and the like). In these applications, the dental devices are optionally used by professional dental hygienists to clean and polish patients' teeth or by individual users for their own personal oral care. In other exemplary embodiments, among many others, rotational components optionally include sanding, scrubbing, and/or polishing implements of use in various woodworking and auto body repair applications. To further illustrate, in some of these embodiments, at least a portion of an implement comprises at least one cross-sectional shape selected from the group consisting of: a circle, an oval, a square, a rectangle, a trapezoid, an irregular n-sided polygon, and a regular n-sided polygon.

In addition to including rotational components (e.g., 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or more rotational components), neighboring pairs of rotational components typically rotate in opposite directions (i.e., counter-rotate) relative to one another. The mechanisms of action disclosed herein in which neighboring rotational components are moving in different directions is effective in performing numerous applications. In some embodiments, rotational components are configured to oscillate (i.e., move back-and-forth within a selected range of motion). In some embodiments, rotational components rotate continuously in at least one direction around rotational axes. The representative embodiments described herein are intended to illustrate, but not to limit, the invention. Essentially any combination of components or portions thereof described herein are optionally utilized or adapted for use together in some embodiments.

To illustrate,FIGS.1A-1D,2A,2B, and3A-3Dschematically show a device or components thereof from various views according to one embodiment. As shown, device100includes head component102that comprises housing component104comprising head portion106and neck portion108that are operably connected to one another (e.g., via housing component104). As also show, head portion106comprises a top area that comprises first top opening115, and first head portion rotational component110operably disposed at least partially in head portion106of housing component104. First head portion rotational component110is configured to rotate completely around first head portion rotational axis112. First head portion rotational component110comprises a rotational mechanism (shown as including first head portion gear component114in the embodiment shown) and first implement116(shown as a bristle carrier) that are operably connected to one another. In some embodiments, rotational components include alignment features (e.g., alignment feature111) that are male or female elements that are configured to mate with corresponding female or male elements disposed on housing component104to align and permit rotation of the rotational components relative to housing component104, while minimizing friction between those elements. In some embodiments, housing components and/or rotational components include projection elements113that can also help to align and minimize friction between rotational components and housing components. As shown, at least a segment of first head portion rotational component110extends into first top opening115of head portion106such that first implement116extends from head portion106. Head component102also includes first neck portion rotational component118operably disposed at least proximal to neck portion108of housing component104. First neck portion rotational component118is similar to first head portion gear component114, but lacks first implement116in the embodiment shown. First neck portion rotational component118is configured to rotate completely around first neck portion rotational axis120. First neck portion rotational component118comprises a first neck portion gear component (structured essentially the same as first head portion gear component114in some embodiments).

As also shown, device100also includes band component122operably engaged with first head portion gear component114of first head portion rotational component110and the first neck portion gear component of first neck portion rotational component118such that when first neck portion rotational component118rotates in a first direction, band component122and first head portion rotational component110rotate in the first direction or when first neck portion rotational component118rotates in a second direction, band component122and first head portion rotational component110rotate in the second direction. Essentially any suitable band component configuration is optionally utilized. In some embodiments, for example, a first surface of band component122comprises first set of projections124that engage with first head portion gear component114of first head portion rotational component110and the first neck portion gear component of first neck portion rotational component118. Projections124are typically structured to operably mesh with first head portion gear component114and the first neck portion gear component of first neck portion rotational component118. In some embodiments, band components lack projections and instead effect rotation of, for example, first head portion rotational component110via compression with first head portion rotational component110. Band components can be fabricated from various materials or combinations of materials, including metal, rubber, KEVLAR®, fiber glass, plastic, fabric, or the like.

Typically, second gear component126(e.g., a bevel gear component, a spur gear component, etc.) is operably connected, or reversibly connectable, to first neck portion rotational component118, and third gear component128(e.g., a bevel gear component, a spur gear component, etc.) is operably connected, or reversibly connectable, to second gear component126.

As also shown, device100also includes handle component130operably connected, or connectable, to head component102. In some embodiments, the head component and the handle component are fabricated integral with one another. In some embodiments, the head component is reversibly connectable to the handle component. Handle component130comprises motor component132operably connected, or reversibly connectable, to power source134(e.g., a rechargeable battery (e.g., via induction charging), disposable battery, a separate power outlet, etc.) and to third gear component128(via a rotational shaft in the embodiment shown) such that when motor component132effects rotation of third gear component128, second gear component126, first neck portion rotational component118, first head portion rotational component110, and band component122rotate in the first direction or in the second direction when third gear component128is operably connected to second gear component126and when second gear component126is operably connected to first neck portion rotational component118. As shown, handle component130also includes switch136operably connected to motor component132to control the operation of motor component132.

To further illustrate,FIGS.4A,4B, and5A-5Dschematically show a device or components thereof from various views according to another embodiment. As shown, device200includes head component202that comprises housing component204comprising head portion206and neck portion208that are operably connected to one another (e.g., via housing component204). As also show, head portion206comprises a top area that comprises first top opening215, and first head portion rotational component210(structured the same as rotational component110in the embodiment shown) operably disposed at least partially in head portion206of housing component204. First head portion rotational component210is configured to rotate completely around first head portion rotational axis212. First head portion rotational component210comprises a rotational mechanism (shown as including first head portion gear component114in the embodiment shown) and first implement216(shown as a bristle carrier) that are operably connected to one another. As shown, at least a segment of first head portion rotational component210extends into first top opening215of head portion206such that first implement216extends from head portion206. Head component202also includes first neck portion rotational component218operably disposed at least proximal to neck portion208of housing component204. First neck portion rotational component218is similar to first head portion gear component114, but lacks first implement116in the embodiment shown. First neck portion rotational component218is configured to rotate completely around first neck portion rotational axis220. First neck portion rotational component218comprises a first neck portion gear component (structured essentially the same as first head portion gear component114in some embodiments).

As also shown, device200also includes band component222operably engaged with first head portion gear component114of first head portion rotational component210and the first neck portion gear component of first neck portion rotational component218such that when first neck portion rotational component218rotates in a first direction, band component222and first head portion rotational component210rotate in the first direction or when first neck portion rotational component218rotates in a second direction, band component222and first head portion rotational component210rotate in the second direction.

As also shown, the top area of head component202further comprises second top opening217. Second head portion rotational component213is operably disposed at least partially in head portion206of housing component204. Second head portion rotational component213is configured to rotate completely around second rotational axis215. Second head portion rotational component213comprises at least a second head portion gear component (as with first head portion rotational component210this gear component is the same as gear component114) and second implement219(shown as a bristle carrier) that are operably connected to one another. At least a segment of second head portion rotational component213extends at least partially into second top opening217of head portion206such that second implement219at least partially extends from head portion206. Band component222is further operably engaged with the second head portion gear component of second head portion rotational component213and the first head portion gear component of first head portion rotational component210such that when first neck portion rotational component218rotates in the first direction, band component222and first head portion rotational component210rotate in the first direction and second head portion rotational component213rotates in the second direction or when first neck portion rotational component218rotates in the second direction, band component222and first head portion rotational component210rotate in the second direction and second head portion rotational component213rotates in the first direction. In some embodiments, the first direction and the second direction are substantially opposite one another. As shown, a first surface of band component222comprises first set of projections224that engage with the first head portion gear component of first head portion rotational component210and the first neck portion gear component of first neck portion rotational component218and a second surface of band component222comprises second set of projections225that engage with the second head portion gear component of second head portion rotational component213. Essentially any suitable band component configuration is optionally utilized. In some embodiments, band component222lacks projections and instead effects rotation of, for example, first head portion rotational component210via compression with first head portion rotational component110and second head portion rotational component213via compression with second head portion rotational component213. Band components can be fabricated from various materials or combinations of materials, including metal, rubber, KEVLAR®, fiber glass, plastic, fabric, or the like.

Typically, second gear component226(e.g., a bevel gear component, a spur gear component, etc.) is operably connected, or reversibly connectable, to first neck portion rotational component218, and third gear component228(e.g., a bevel gear component, a spur gear component, etc.) is operably connected, or reversibly connectable, to second gear component226. Exemplary gears that are optionally adapted for use with the components, devices, and related applications of the present disclosure are also described in, e.g., Dudley, Handbook of Practical Gear Design (Mechanical Engineering Series), CRC Press, 1st Ed. (1994) and Litvin and Fuentes, Gear Geometry and Applied Theory, Cambridge University Press; 2nd Ed. (2004), which are both incorporated herein in their entirety for all purposes.

As also shown, device200also includes handle component230operably connected, or connectable, to head component202. In some embodiments, the head component and the handle component are fabricated integral with one another. In some embodiments, the head component is reversibly connectable to the handle component. Handle component230comprises motor component232operably connected, or reversibly connectable, to power source234(e.g., a rechargeable battery (e.g., via induction charging), disposable battery, a separate power outlet, etc.) and to third gear component228(via a rotational shaft in the embodiment shown) such that when motor component232effects rotation of third gear component228, second gear component226, first neck portion rotational component218, first head portion rotational component210, and band component222rotate in the first direction and second head portion rotational component213rotates in the second direction, when third gear component228is operably connected to second gear component226and when second gear component226is operably connected to first neck portion rotational component218. As shown, handle component230also includes switch236operably connected to motor component232to control the operation of motor component232.

In some embodiments, the present disclosure provides devices and head components that comprise multiple head portion rotational components, but which do not include band components, such as band component222, which is configured to directly engage both first head portion rotational component210and second head portion rotational component213to effect counter-rotation of those rotational components. Device1100schematically depicted inFIGS.11A and11Billustrates such an exemplary embodiment. As shown, device1100is similar to device200described herein, but includes band component122, instead of band component222. Band component122directly engages first head portion rotational component210, but not second head portion rotational component213. First head portion rotational component210and second head portion rotational component213have been further modified to include gear components1104and1102, respectively, which mesh with one another. During operation of device1100, when band component122rotates, for example, in a first direction, first head portion rotational component210also rotates in the first direction, but second head portion rotational component213counter-rotates in a second direction substantially opposite the first direction due to the movement of meshed gear components1104and1102.

To further illustrate,FIGS.6A and6Bschematically show a device that includes a detachable head component. As shown, device600includes head component602, which is configured essentially the same as head component202and the components disposed therein, as described herein. As shown, head component602is configured to reversibly attach to, and be retained in operable connection to, handle component604via retaining elements606(shown as compression projections in this embodiment). Handle component604is otherwise configured essentially the same as handle component230, as discussed herein. When head component602is operably connected to handle component604, second gear component626operably connects to neck portion rotational component618such that during operation of device600, first implement616and second implement619counter-rotate relative to one another in some embodiments, as described herein. In some embodiments, first implement616and second implement619are configured to oscillate relative to one another.

To further illustrate,FIGS.7A-7D,8A,8B,9A, and9Bschematically show a device or components thereof from various views according to one embodiment. As shown, device900is configured similar to, for example, device200described herein in certain respects. Device900includes a head component (similar to head component202) that comprises housing component904comprising a head portion (similar to head portion206) and a neck portion (similar to neck portion208) that are operably connected to one another (e.g., via housing component904). As also show, the head portion comprises a top area that comprises a first top opening (similar to first top opening215), and first head portion rotational component710operably disposed at least partially in the head portion of housing component904. First head portion rotational component710(e.g., a pulley component or the like) comprises alignment feature711(configured similar to alignment feature111). First head portion rotational component710is configured to rotate completely around a first head portion rotational axis (similar to first head portion rotational axis212). First head portion rotational component710comprises a rotational mechanism (shown as including spherical projection receiving areas714in the embodiment shown) and first implement716(shown as a bristle carrier) that are operably connected to one another. In the exemplary embodiment shown, first head portion rotational component710also includes gear structure715that meshes with a corresponding gear structure disposed on second head portion rotational component713, as described further herein. In some embodiments, rotational components do not include gear structures, such as gear structure715. As shown, at least a segment of first head portion rotational component710extends into a first top opening (similar to first top opening215) of the head portion such that first implement716extends from the head portion. The head component also includes first neck portion rotational component718(e.g., a pulley component) operably disposed at least proximal to the neck portion of housing component904. First neck portion rotational component718is similar to first head portion rotational component710, but lacks first implement716in the embodiment shown. First neck portion rotational component718is configured to rotate completely around a first neck portion rotational axis (similar to first neck portion rotational axis220). First neck portion rotational component718comprises spherical projection receiving areas714(structured essentially the same as spherical projection receiving areas714of first head portion rotational component710in some embodiments).

As also shown, device900also includes band component722, which comprises a plurality of at least partially spherical projections725. As referenced herein, first head portion rotational component710and first neck portion rotational component718each comprise spherical projection receiving areas714that are structured to receive at least portions of spherical projections725such that when first neck portion rotational component718rotates in a first direction, band component722and first head portion rotational component710rotate in the first direction or when first neck portion rotational component718rotates in a second direction, band component722and first head portion rotational component710rotate in the second direction when spherical projection receiving areas714receive at least the portions of spherical projections725and at least spherical projections725engage first head portion rotational component710and first neck portion rotational component718. Projections and projection receiving areas optionally have other corresponding shapes. In some embodiments, for example, projections and projections receiving areas have corresponding cross-sectional shapes, such as squares, triangles, ovals, regular n-sided polygons, irregular n-sided polygons, or the like. In some embodiments, the devices of the present disclosure include band components having substantially disk-shaped projections and projection receiving areas that have corresponding shapes that receive and engage the substantially disk-shaped projections. To illustrate,FIGS.10A and10Bschematically show band component1022that includes substantially disk-shaped projections1025.

As also shown, the top area of the head component further comprises a second top opening (similar to second top opening217). Second head portion rotational component713(e.g., a pulley component) is operably disposed at least partially in the head portion of housing component904. Second head portion rotational component713is configured to rotate completely around a second rotational axis (similar to second rotational axis215). Second head portion rotational component713comprises spherical projection receiving areas714(the same as spherical projection receiving areas714of first head portion rotational component710) and second implement719(shown as a bristle carrier) that are operably connected to one another. At least a segment of second head portion rotational component713extends at least partially into the second top opening of the head portion such that second implement719at least partially extends from the head portion. Band component722is further operably engaged with spherical projection receiving areas714of second head portion rotational component713such that when first neck portion rotational component718rotates in the first direction, band component722and first head portion rotational component710rotate in the first direction and second head portion rotational component713rotates in the second direction or when first neck portion rotational component718rotates in the second direction, band component722and first head portion rotational component710rotate in the second direction and second head portion rotational component713rotates in the first direction. Second head portion rotational component713also includes gear structure715that meshes with corresponding gear structure715disposed on first head portion rotational component710, as described further herein. In some embodiments, the first direction and the second direction are substantially opposite one another. Band components can be fabricated from various materials or combinations of materials, including metal, rubber, KEVLAR®, fiber glass, plastic, fabric, or the like. In some embodiments, devices are configured similar to device100(i.e., only including a single head portion rotational component) using, for example, first neck portion rotational component718, first head portion rotational component710, and band component722.

As also shown, the head component of device900comprises at least one channel727(two channels727are shown) at least partially disposed within housing component904in which at least a portion of band component722is disposed at least partially within channels727and is configured to move through channels727. As additionally shown, the head component of device900also comprises at least one support structure729(e.g., an internal divider, wall, rib, or the like) disposed at least partially within housing component904. In the embodiment shown, support structure729is disposed at least partially between the two channels727disposed within housing component904. In some embodiments, support structure729is formed to provide structural support to housing component904, such that housing component904maintains structural integrity and rigidity during the use of device900.

Device900includes second gear component226(e.g., a bevel gear component, a spur gear component, etc.) operably connected, or reversibly connectable, to first neck portion rotational component718, and third gear component228(e.g., a bevel gear component, a spur gear component, etc.) is operably connected, or reversibly connectable, to second gear component226. Exemplary gears that are optionally adapted for use with the components, devices, and related applications of the present disclosure are also described in, e.g., Dudley, Handbook of Practical Gear Design (Mechanical Engineering Series), CRC Press, 1st Ed. (1994) and Litvin and Fuentes, Gear Geometry and Applied Theory, Cambridge University Press; 2nd Ed. (2004), which are both incorporated herein in their entirety for all purposes.

As also shown, device900also includes a handle component (similar to handle component230in some embodiments) operably connected, or connectable, to the head component of device900. In some embodiments, the head component and the handle component are fabricated integral with one another. In some embodiments, the head component is reversibly connectable to the handle component, for example, similar the embodiment shown inFIGS.6A and6B. The handle component comprises motor component232operably connected, or reversibly connectable, to power source234(e.g., a rechargeable battery (e.g., via induction charging), disposable battery, a separate power outlet, etc.) and to third gear component228(via a rotational shaft in the embodiment shown) such that when motor component232effects rotation of third gear component228, second gear component226, first neck portion rotational component718, first head portion rotational component710, and band component722rotate in the first direction and second head portion rotational component713rotates in the second direction, when third gear component228is operably connected to second gear component226and when second gear component226is operably connected to first neck portion rotational component718. As shown, the handle component also includes switch736operably connected to motor component232to control the operation of motor component232.

In some embodiments, the rotational components comprise resilient coupling components that resiliently couple the implement directly or indirectly to head portion gear components. Additional details regarding resilient coupling components that are optionally adapted for use with the head components and devices disclosed herein are described, for example, in U.S. Patent Application Publication No. US 2016/0305507, titled “ROTARY UNITS, ROTARY MECHANISMS, AND RELATED APPLICATIONS,” filed Oct. 20, 2016 by Sappenfield, which incorporated by reference in its entirety.

The present disclosure also provides various fluid driven devices, head components, and related methods in which fluids (e.g., a liquid-phase or a gas-phase fluid) are used to effect the rotation of rotational components. Aspects of these embodiments are schematically shown, for example, inFIGS.12A-12D,13,14A,14B,15,16A-16C,17, and18. As shown, device1300includes head component1302, which includes head portion1306and neck portion1308that are operably connected, or connectable, to one another. Head portion1306comprises at least a top area that comprises at least first top opening1315. Head component1302also includes first head portion rotational component1210operably disposed at least partially in head portion1306of head housing component1311. First head portion rotational component1210is configured to rotate at least partially around first head portion rotational axis1320. First head portion rotational component1210comprises first implement1216(shown as a bristle carrier). As shown, a segment of first head portion rotational component1210extends through first top opening1315of head portion1306such that first implement1216at least partially extends from head portion1306. Head component1302also includes first channel1313at least partially disposed in neck portion1308of head housing component1311. First channel1313fluidly communicates with at least a portion of first head portion rotational component1210(i.e., impeller structure1214). Device1300also includes handle component1330operably connected, or connectable, to head component1302. Handle component1330comprises handle housing component1331. Fluid container1332(e.g., a compressed gas tank) is at least partially disposed in handle housing component1331. Fluid container1332is operably connected, or connectable, to first channel1313such that when fluid (e.g., a gas or a liquid) flows from fluid container1332(shown as being substantially completely disposed in handle housing component1313) through first channel1313, first head portion rotational component1210rotates at least partially around first head portion rotational axis1320. Device1300typically comprises an operably connected switch or valve mechanism1341that is configured to selectively effect the fluid to flow fluid container1332through first channel1313. As also shown, fluid container1332is configured to reversibly fluidly communicate with fluid replenishing station1347(e.g., an air compressor or other gas compressor apparatus) that is structured to replenish fluid in fluid container1332via valve or port1345.

The top area of head components of the present disclosure optionally further comprises at least a second top opening (schematically shown, for example, inFIGS.17and18). A second head portion rotational component1618is shown operably disposed at least partially in the head portion of the head housing component. Second head portion rotational component1618is configured to counter-rotate relative to first head portion rotational component1610. In the embodiment shown, second head portion rotational component1618is structured the same as first head portion rotational component1610. First head portion rotational component1610includes impellers1614(shown as primary and secondary impellers) and implement1616. Second head portion rotational component1618is configured to rotate at least partially around a second head portion rotational axis. As shown, at least a portion of first head portion rotational component1610is operably engaged with at least a portion of second head portion rotational component1618such that when the fluid flows from a fluid container or other fluid source through first channel1620, first head portion rotational component1610and second head portion rotational component1618rotate in directions that are substantially opposite one another, because impeller structures of first head portion rotational component1610and second head portion rotational component1618operably engage one another during operation.

The head component comprises second channel1621and/or one In some embodiments or more vent openings1622configured to receive exhaust fluid from first head portion rotational component1610when the fluid flows from the fluid container through the first channel (e.g., first channel1620). In some embodiments, the head component comprises one or more exhaust fluid fins1623that are configured to direct the exhaust fluid from first head portion rotational component1610to second channel1620and/or vent openings1622when the fluid flows from the fluid container through first channel1620. In some embodiments, first channel (e.g., first channel1620) comprises one or more openings (e.g., manifold structure1645having one or more openings of first channel1620) disposed proximal to first head portion rotational component1610that direct the fluid toward the first head portion rotational component1610when the fluid flows from the fluid container through the first channel to effect rotation of at least first head portion rotational component1610. As shown, first head portion rotational component1610and second head portion rotational component1618each comprise at least one impeller structure that operably engage one another. As additionally shown, the impeller structure of at least first head portion rotational component1610comprises at least a primary impeller and at least a secondary impeller. In some embodiments, first head portion rotational component1610and second head portion rotational component1618each comprise at least one gear component that operably engage one another.

Typically, the fluid containers of the fluid driven devices of the present disclosure comprise a fluid. In some embodiments, the fluid comprises a gas. In some embodiments, the gas is at least partially compressed (e.g., compressed air or the like). In some embodiments, the fluid comprises a liquid (e.g., liquid-phase water or the like).

In some embodiments, as shown inFIGS.14A and14B, for example, device1400fluid container1432is removable from handle housing component1434, once handle cap component1436is removed from device1400. First channel1313is configured to fluidly communicate with fluid container1432via valve or port1436which is configured to operably connect to a switch or valve mechanism of device1400. As also shown, fluid container1432is configured to reversibly fluidly communicate with fluid replenishing station1438(e.g., an air compressor or other gas compressor apparatus) that is structured to replenish fluid in fluid container1432via valve or port1440. In some embodiments, fluid driven device of the present disclosure do not include fluid containers. In some of these embodiments, such as shown inFIG.18, for example, first fluid channels (e.g.,1620of device1600) are configured to reversibly fluidly communicate with an external fluid source (e.g., an air compressor or other gas compressor apparatus) via reversibly connectable tube component1625.

In some embodiments, as shown, for example, inFIG.13, head component1302and the handle component1330are fabricated integral with one another. In some embodiments, as shown, for example, inFIG.15, head component1513is reversibly connectable to handle component1504via reversibly connectable neck portion1515of the head component.

In some embodiments, devices of the present disclosure comprise dental devices. In some embodiments, the dental devices comprise toothbrushes (e.g., electric toothbrushes). In some embodiments, the device implements are from, for example, a prophy cup, a bristle component, a flossing component, a polishing component, and a combination of two or more thereof. In some embodiments, devices are configured as household or industrial devices having implements selected from, for example, a cleaning component, a polishing component, a sanding component, and a scrubbing component.

The present disclosure also provides various methods, including methods of operating and/or manufacturing the devices disclosed herein. In some embodiments, for example, the present disclosure provides a method of operating a device. The method includes rotating a first neck portion rotational component of the device, which first neck portion rotational component is operably engaged with a band component that is operably engaged with a first head portion rotational component that comprises at least a first implement such that the first head portion rotational component and the first implement rotate completely around a first head portion rotational axis in a first direction, thereby operating the device. In some embodiments, the method further comprises rotating a second head portion rotational component of the device, which second head portion rotational component comprises at least a second implement and which second head portion rotational component is operably engaged with the band component such that the second head portion rotational component and the second implement rotate completely around a second head portion rotational axis in a second direction. In some embodiments, the first and second implements comprise dental implements and the method further comprises contacting the first implement and/or the second implement with one or more teeth and/or dental appliances of a subject.

Device components (e.g., head components, handle components, drive mechanism components, gear components, shafts, rotational components, device housings, etc.) are optionally formed by various fabrication techniques or combinations of such techniques including, e.g., cast molding, stamping, machining, embossing, extrusion, engraving, injection molding, etching (e.g., electrochemical etching, etc.), or other techniques. These and other suitable fabrication techniques are generally known in the art and described in, e.g., Molinari et al. (Eds.), Metal Cutting and High Speed Machining, Kluwer Academic Publishers (2002), Altintas, Manufacturing Automation: Metal Cutting Mechanics, Machine Tool Vibrations, and CNC Design, Cambridge University Press (2000), Stephenson et al., Metal Cutting Theory and Practice, Marcel Dekker (1997), Fundamentals of Injection Molding, W. J. T. Associates (2000), Whelan, Injection Molding of Thermoplastics Materials, Vol. 2, Chapman & Hall (1991), Rosato, Injection Molding Handbook, 3rdEd., Kluwer Academic Publishers (2000), Fisher, Extrusion of Plastics, Halsted Press (1976), and Chung, Extrusion of Polymers: Theory and Practice, Hanser-Gardner Publications (2000), which are each incorporated by reference. Exemplary materials optionally used to fabricate device components include, e.g., metal, glass, wood, polymethylmethacrylate, polyethylene, polydimethylsiloxane, polyetheretherketone, polytetrafluoroethylene, polystyrene, polyvinylchloride, polypropylene, polysulfone, polymethylpentene, and polycarbonate, among many others. In certain embodiments, following fabrication, device components are optionally further processed, e.g., by painting, coating surfaces with a hydrophilic coating, a hydrophobic coating, or the like.

Some further aspects are also defined in the following clauses:

Clause 1: A device, comprising: a head component that comprises: a head housing component comprising a head portion and a neck portion that are operably connected to one another, wherein the head portion comprises at least a top area that comprises at least a first top opening; a first head portion rotational component operably disposed at least partially in the head portion of the head housing component, wherein the first head portion rotational component is configured to rotate completely around a first head portion rotational axis, wherein the first head portion rotational component comprises at least a first implement, and wherein at least a segment of the first head portion rotational component extends at least partially into and/or through the first top opening of the head portion such that the first implement at least partially extends from the head portion; a first neck portion rotational component operably disposed at least proximal to the neck portion of the head housing component, wherein the first neck portion rotational component is configured to rotate completely around a first neck portion rotational axis; a band component operably engaged with the first head portion rotational component and the first neck portion rotational component such that when the first neck portion rotational component rotates in a first direction, the band component and the first head portion rotational component rotate in the first direction or when the first neck portion rotational component rotates in a second direction, the band component and the first head portion rotational component rotate in the second direction; a rotational mechanism operably connected, or reversibly connectable, to the first neck portion rotational component; and, a handle component operably connected, or connectable, to the head component, which handle component comprises a handle housing component that comprises a motor component operably connected, or reversibly connectable, to a power source and to the rotational mechanism such that when the motor component effects rotation of the rotational mechanism, the first neck portion rotational component, the first head portion rotational component, and the band component rotate in the first direction or in the second direction when the rotational mechanism is operably connected to the first neck portion rotational component.

Clause 2: The device of Clause 1, wherein: the first head portion rotational component comprises at least a first head portion gear component operably connected to the first implement; the first neck portion rotational component comprises at least a first neck portion gear component; the band component is operably engaged with the first head portion gear component of the first head portion rotational component and the first neck portion gear component of the first neck portion rotational component such that when the first neck portion rotational component rotates in the first direction, the band component and the first head portion rotational component rotate in the first direction or when the first neck portion rotational component rotates in the second direction, the band component and the first head portion rotational component rotate in the second direction; a second gear component is operably connected, or reversibly connectable, to the first neck portion rotational component; a third gear component is operably connected, or reversibly connectable, to the second gear component; and, the motor component is operably connected, or reversibly connectable, to the power source and to the third gear component such that when the motor component effects rotation of the third gear component, the second gear component, the first neck portion rotational component, the first head portion rotational component, and the band component rotate in the first direction or in the second direction when the third gear component is operably connected to the second gear component and when the second gear component is operably connected to the first neck portion rotational component.

Clause 3: The device of Clause 1 or Clause 2, wherein the first head portion rotational component and the first neck portion rotational component each comprise a pulley component.

Clause 4: The device of any one of Clauses 1-3, wherein the head component comprises at least one channel at least partially disposed within the head housing component and wherein at least a portion of the band component is disposed at least partially within the channel and is configured to move through the channel.

Clause 5: The device of any one of Clauses 1-4, wherein the head component comprises at least two channels at least partially disposed within the head housing component and wherein the band component is disposed at least partially within the channels and is configured to move through the channels.

Clause 6: The device of any one of Clauses 1-5, wherein the head component comprises at least one support structure disposed at least partially within the head housing component.

Clause 7: The device of any one of Clauses 1-6, wherein the support structure is disposed at least partially between the channels.

Clause 8: The device of any one of Clauses 1-7, wherein the band component comprises a plurality of at least partially spherical or substantially disk-shaped projections.

Clause 9: The device of any one of Clauses 1-8, wherein the first head portion rotational component and the first neck portion rotational component each comprise spherical or substantially disk-shaped projection receiving areas that are structured to receive at least portions of the spherical or the substantially disk-shaped projections such that when the first neck portion rotational component rotates in a first direction, the band component and the first head portion rotational component rotate in the first direction or when the first neck portion rotational component rotates in a second direction, the band component and the first head portion rotational component rotate in the second direction when the spherical or substantially disk-shaped projection receiving areas receive at least the portions of the spherical or substantially disk-shaped projections and at least the spherical or substantially disk-shaped projections engage the first head portion rotational component and the first neck portion rotational component.

Clause 10: The device of any one of Clauses 1-9, wherein the top area of the head component further comprises at least a second top opening, wherein a second head portion rotational component is operably disposed at least partially in the head portion of the head housing component, wherein the second head portion rotational component is configured to rotate completely around a second rotational axis, wherein the second head portion rotational component comprises at least a second implement, wherein at least a segment of the second head portion rotational component extends at least partially into and/or through the second top opening of the head portion such that the second implement at least partially extends from the head portion, and wherein the band component is further operably engaged with the second head portion rotational component and/or the first and second head portion rotational components operably engage one another such that when the first neck portion rotational component rotates in the first direction, the band component and the first head portion rotational component rotate in the first direction and the second head portion rotational component rotates in the second direction or when the first neck portion rotational component rotates in the second direction, the band component and the first head portion rotational component rotate in the second direction and the second head portion rotational component rotates in the first direction.

Clause 11: The device of any one of Clauses 1-10, wherein the second head portion rotational component comprises a pulley component.

Clause 12: The device of any one of Clauses 1-11, wherein the first and second head portion rotational components and the first neck portion rotational component each comprise spherical or substantially disk-shaped projection receiving areas that are structured to receive at least portions of the spherical or substantially disk-shaped projections such that when the first neck portion rotational component rotates in a first direction, the band component and the first head portion rotational component rotate in the first direction and the second head portion rotational component rotates in the second direction or when the first neck portion rotational component rotates in a second direction, the band component and the first head portion rotational component rotate in the second direction and the second head portion rotational component rotates in the first direction when the spherical or substantially disk-shaped projection receiving areas receive at least the portions of the spherical or substantially disk-shaped projections and at least the spherical or substantially disk-shaped projections engage the first and second head portion rotational components and the first neck portion rotational component.

Clause 13: The device of any one of Clauses 1-12, wherein the first and second head portion rotational components each comprise gear structures that mesh with one another when the first and second head portion rotational components rotate relative to one another.

Clause 14: The device of any one of Clauses 1-13, wherein the head component and the handle component are fabricated integral with one another.

Clause 15: The device of any one of Clauses 1-14, wherein the head component is reversibly connectable to the handle component.

Clause 16: The device of any one of Clauses 1-15, wherein a first surface of the band component comprises a first set of projections that engage with the first head portion gear component of the first head portion rotational component and the first neck portion gear component of the first neck portion rotational component.

Clause 17: The device of any one of Clauses 1-16, wherein the top area of the head component further comprises at least a second top opening, wherein a second head portion rotational component is operably disposed at least partially in the head portion of the head housing component, wherein the second head portion rotational component is configured to rotate completely around a second rotational axis, wherein the second head portion rotational component comprises at least a second head portion gear component and at least a second implement that are operably connected to one another, wherein at least a segment of the second head portion rotational component extends at least partially into and/or through the second top opening of the head portion such that the second implement at least partially extends from the head portion, and wherein the band component is further operably engaged with the second head portion gear component and the first head portion gear component and/or the first and second head portion rotational components operably engage one another such that when the first neck portion rotational component rotates in the first direction, the band component and the first head portion rotational component rotate in the first direction and the second head portion rotational component rotates in the second direction or when the first neck portion rotational component rotates in the second direction, the band component and the first head portion rotational component rotate in the second direction and the second head portion rotational component rotates in the first direction.

Clause 18: The device of any one of Clauses 1-17, wherein the first direction and the second direction are substantially opposite one another.

Clause 19: The device of any one of Clauses 1-18, wherein a first surface of the band component comprises a first set of projections that engage with the first head portion gear component of the first head portion rotational component and the first neck portion gear component of the first neck portion rotational component and wherein a second surface of the band component comprises a second set of projections that engage with the second head portion gear component of the second head portion rotational component.

Clause 20: The device of any one of Clauses 1-19, wherein the first head portion rotational component and/or the second head portion rotational component comprises at least one resilient coupling component that resiliently couples the first implement directly or indirectly to the first head portion gear component and/or the second implement directly or indirectly to the second head portion gear component.

Clause 21: The device of any one of Clauses 1-20, wherein the device comprises a dental device.

Clause 22: The device of any one of Clauses 1-21, wherein the dental device comprises a toothbrush.

Clause 23: The device of any one of Clauses 1-22, wherein the first implement and the second implement are independently selected from the group consisting of: a prophy cup, a bristle component, a flossing component, a polishing component, and a combination of two or more thereof.

Clause 24: The device of any one of Clauses 1-23, wherein the first implement and the second implement are independently selected from the group consisting of: a cleaning component, a polishing component, a sanding component, and a scrubbing component.

Clause 25: A head component, comprising: a head housing component comprising a head portion and a neck portion that are operably connected to one another, wherein the head portion comprises at least a top area that comprises at least a first top opening; a first head portion rotational component operably disposed at least partially in the head portion of the head housing component, wherein the first head portion rotational component is configured to rotate completely around a first head portion rotational axis, wherein the first head portion rotational component comprises at least a first implement, and wherein at least a segment of the first head portion rotational component extends at least partially into and/or through the first top opening of the head portion such that the first implement at least partially extends from the head portion; a first neck portion rotational component operably disposed at least proximal to the neck portion of the head housing component, wherein the first neck portion rotational component is configured to rotate completely around a first neck portion rotational axis; and, a band component operably engaged with the first head portion rotational component and the first neck portion rotational component such that when the first neck portion rotational component rotates in a first direction, the band component and the first head portion rotational component rotate in the first direction or when the first neck portion rotational component rotates in a second direction, the band component and the first head portion rotational component rotate in the second direction; wherein the first neck portion rotational component is operably connected, or reversibly connectable, to a rotational mechanism; and wherein the head component is configured to reversibly operably connect to a handle component that comprises a handle housing component that comprises a motor component operably connected, or reversibly connectable, to a power source and to the rotational mechanism such that when the head component is operably connected to the handle component and when the motor component effects rotation of the rotational mechanism, the first neck portion rotational component, the first head portion rotational component, and the band component rotate in the first direction or in the second direction.

Clause 26: The head component of Clause 25, wherein: the first head portion rotational component comprises at least a first head portion gear component operably connected to the first implement; the first neck portion rotational component comprises at least a first neck portion gear component; the band component is operably engaged with the first head portion gear component of the first head portion rotational component and the first neck portion gear component of the first neck portion rotational component such that when the first neck portion rotational component rotates in the first direction, the band component and the first head portion rotational component rotate in the first direction or when the first neck portion rotational component rotates in the second direction, the band component and the first head portion rotational component rotate in the second direction; the first neck portion rotational component is operably connected, or reversibly connectable, to a second gear component; and, the head component is configured to reversibly operably connect to a handle component, which handle component comprises a motor component operably connected, or reversibly connectable, to a power source and to a third gear component, which third gear component is operably connected, or reversibly connectable, to the second gear component such that when the head component is operably connected to the handle component and when the motor component effects rotation of the third gear component, the second gear component, the first neck portion rotational component, the first head portion rotational component, and the band component rotate in the first direction or in the second direction.

Clause 27: The head component of Clause 25 or Clause 26, wherein the first head portion rotational component and the first neck portion rotational component each comprise a pulley component.

Clause 28: The head component of any one of Clauses 25-27, wherein the head component comprises at least one channel at least partially disposed within the head housing component and wherein at least a portion of the band component is disposed at least partially within the channel and is configured to move through the channel.

Clause 29: The head component of any one of Clauses 25-28, wherein the head component comprises at least two channels at least partially disposed within the head housing component and wherein the band component is disposed at least partially within the channels and is configured to move through the channels.

Clause 30: The head component of any one of Clauses 25-29, wherein the head component comprises at least one support structure disposed at least partially within the head housing component.

Clause 31: The head component of any one of Clauses 25-30, wherein the support structure is disposed at least partially between the channels.

Clause 32: The head component of any one of Clauses 25-31, wherein the band component comprises a plurality of at least partially spherical or substantially disk-shaped projections.

Clause 33: The head component of any one of Clauses 25-32, wherein the first head portion rotational component and the first neck portion rotational component each comprise spherical or substantially disk-shaped projection receiving areas that are structured to receive at least portions of the spherical or substantially disk-shaped projections such that when the first neck portion rotational component rotates in a first direction, the band component and the first head portion rotational component rotate in the first direction or when the first neck portion rotational component rotates in a second direction, the band component and the first head portion rotational component rotate in the second direction when the spherical or substantially disk-shaped projection receiving areas receive at least the portions of the spherical or substantially disk-shaped projections and at least the spherical or substantially disk-shaped projections engage the first head portion rotational component and the first neck portion rotational component.

Clause 34: The head component of any one of Clauses 25-33, wherein the top area of the head component further comprises at least a second top opening, wherein a second head portion rotational component is operably disposed at least partially in the head portion of the head housing component, wherein the second head portion rotational component is configured to rotate completely around a second rotational axis, wherein the second head portion rotational component comprises at least a second implement, wherein at least a segment of the second head portion rotational component extends at least partially into and/or through the second top opening of the head portion such that the second implement at least partially extends from the head portion, and wherein the band component is further operably engaged with the second head portion rotational component and/or the first and second head portion rotational components operably engage one another such that when the first neck portion rotational component rotates in the first direction, the band component and the first head portion rotational component rotate in the first direction and the second head portion rotational component rotates in the second direction or when the first neck portion rotational component rotates in the second direction, the band component and the first head portion rotational component rotate in the second direction and the second head portion rotational component rotates in the first direction.

Clause 35: The head component of any one of Clauses 25-34, wherein the second head portion rotational component comprises a pulley component.

Clause 36: The head component of any one of Clauses 25-35, wherein the band component comprises a plurality of at least partially spherical or substantially disk-shaped projections, wherein the first and second head portion rotational components and the first neck portion rotational component each comprise spherical or substantially disk-shaped projection receiving areas that are structured to receive at least portions of the spherical or substantially disk-shaped projections such that when the first neck portion rotational component rotates in a first direction, the band component and the first head portion rotational component rotate in the first direction and the second head portion rotational component rotates in the second direction or when the first neck portion rotational component rotates in a second direction, the band component and the first head portion rotational component rotate in the second direction and the second head portion rotational component rotates in the first direction when the spherical or substantially disk-shaped projection receiving areas receive at least the portions of the spherical or substantially disk-shaped projections and at least the spherical or substantially disk-shaped projections engage the first and second head portion rotational components and the first neck portion rotational component.

Clause 37: The head component of any one of Clauses 25-36, wherein the first and second head portion rotational components each comprise gear structures that mesh with one another when the first and second head portion rotational components rotate relative to one another.

Clause 38: The head component of any one of Clauses 25-37, wherein a first surface of the band component comprises a first set of projections that engage with the first head portion gear component of the first head portion rotational component and the first neck portion gear component of the first neck portion rotational component.

Clause 39: The head component of any one of Clauses 25-38, wherein the top area of the head component further comprises at least a second top opening, wherein a second head portion rotational component is operably disposed at least partially in the head portion of the head housing component, wherein the second head portion rotational component is configured to rotate completely around a second rotational axis, wherein the second head portion rotational component comprises at least a second head portion gear component and at least a second implement that are operably connected to one another, wherein at least a segment of the second head portion rotational component extends at least partially into and/or through the second top opening of the head portion such that the second implement at least partially extends from the head portion, and wherein the band component is further operably engaged with the second head portion gear component and the first head portion gear component and/or the first and second head portion rotational components operably engage one another such that when the first neck portion rotational component rotates in the first direction, the band component and the first head portion rotational component rotate in the first direction and the second head portion rotational component rotates in the second direction or when the first neck portion rotational component rotates in the second direction, the band component and the first head portion rotational component rotate in the second direction and the second head portion rotational component rotates in the first direction.

Clause 40: The head component of any one of Clauses 25-39, wherein the first direction and the second direction are substantially opposite one another.

Clause 41: The head component of any one of Clauses 25-40, wherein a first surface of the band component comprises a first set of projections that engage with the first head portion gear component of the first head portion rotational component and the first neck portion gear component of the first neck portion rotational component and wherein a second surface of the band component comprises a second set of projections that engage with the second head portion gear component of the second head portion rotational component.

Clause 42: The head component of any one of Clauses 25-41, wherein the first implement and the second implement are independently selected from the group consisting of: a prophy cup, a bristle component, a flossing component, a polishing component, and a combination of two or more thereof.

Clause 43: A device comprising the head component of any one of Clauses 25-42.

Clause 44: A device, comprising: a head component that comprises: a head housing component comprising a head portion and a neck portion that are operably connected, or connectable, to one another, wherein the head portion comprises at least a top area that comprises at least a first top opening; a first head portion rotational component operably disposed at least partially in the head portion of the head housing component, wherein the first head portion rotational component is configured to rotate at least partially around a first head portion rotational axis, wherein the first head portion rotational component comprises at least a first implement, and wherein at least a segment of the first head portion rotational component extends at least partially into and/or through the first top opening of the head portion such that the first implement at least partially extends from the head portion; and a first channel at least partially disposed in the neck portion of the head housing component, wherein the first channel fluidly communicates with at least a portion of the first head portion rotational component; a handle component operably connected, or connectable, to the head component, which handle component comprises a handle housing component; and, a fluid container at least partially disposed in the handle housing component, which fluid container is operably connected, or connectable, to the first channel such that when fluid flows from the fluid container through the first channel, the first head portion rotational component rotates at least partially around the first head portion rotational axis.

Clause 45: The device of Clause 44, wherein the device comprises an operably connected switch or valve mechanism that is configured to selectively effect the fluid to flow from the fluid container through the first channel.

Clause 46: The device of Clause 44 or Clause 45, wherein the fluid container is substantially completely disposed in the handle housing component.

Clause 47: The device of any one of Clauses 44-46, wherein the first head portion rotational component comprises at least one impeller structure.

Clause 48: The device of any one of Clauses 44-47, wherein the top area of the head component further comprises at least a second top opening, wherein a second head portion rotational component is operably disposed at least partially in the head portion of the head housing component, wherein the second head portion rotational component is configured to rotate at least partially around a second head portion rotational axis, wherein the second head portion rotational component comprises at least a second implement, wherein at least a segment of the second head portion rotational component extends at least partially into and/or through the second top opening of the head portion such that the second implement at least partially extends from the head portion, and wherein at least a portion of the first head portion rotational component is operably engaged with at least a portion of the second head portion rotational component such that when the fluid flows from the fluid container through the first channel, the first head portion rotational component and the second head portion rotational component rotate in directions that are substantially opposite one another.

Clause 49: The device of any one of Clauses 44-48, wherein the head component comprises a second channel and/or one or more vent openings configured to receive exhaust fluid from the first head portion rotational component when the fluid flows from the fluid container through the first channel.

Clause 50: The device of any one of Clauses 44-49, wherein the head component comprises one or more exhaust fluid fins that are configured to direct the exhaust fluid from the first head portion rotational component to the second channel and/or the one or more vent openings when the fluid flows from the fluid container through the first channel.

Clause 51: The device of any one of Clauses 44-50, wherein the first channel comprises one or more openings disposed proximal to the first head portion rotational component that direct the fluid toward the first head portion rotational component when the fluid flows from the fluid container through the first channel to effect rotation of at least the first head portion rotational component.

Clause 52: The device of any one of Clauses 44-51, wherein a manifold structure comprises the one or more openings of the first channel.

Clause 53: The device of any one of Clauses 44-52, wherein the first head portion rotational component and the second head portion rotational component each comprise at least one impeller structure that operably engage one another.

Clause 54: The device of any one of Clauses 44-53, wherein the impeller structure of at least the first head portion rotational component comprises at least a primary impeller and at least a secondary impeller.

Clause 55: The device of any one of Clauses 44-54, wherein the first head portion rotational component and the second head portion rotational component each comprise at least one gear component that operably engage one another.

Clause 56: The device of any one of Clauses 44-55, wherein the fluid container comprises the fluid.

Clause 57: The device of any one of Clauses 44-56, wherein the fluid comprises a gas.

Clause 58: The device of any one of Clauses 44-57, wherein the gas is at least partially compressed.

Clause 59: The device of any one of Clauses 44-58, wherein the fluid comprises a liquid.

Clause 60: The device of any one of Clauses 44-59, wherein the fluid container is removable from the handle housing component.

Clause 61: The device of any one of Clauses 44-60, wherein the fluid container is configured to reversibly fluidly communicate with a fluid replenishing station that is structured to replenish fluid in the fluid container.

Clause 62: The device of any one of Clauses 44-61, wherein the fluid replenishing station comprises a gas compressor apparatus.

Clause 63: The device of any one of Clauses 44-62, wherein the head component and the handle component are fabricated integral with one another.

Clause 64: The device of any one of Clauses 44-63, wherein the head component is reversibly connectable to the handle component.

Clause 65: The device of any one of Clauses 44-64, wherein the head portion of the head component is reversibly connectable to the neck portion of the head component.

Clause 66: The device of any one of Clauses 44-65, wherein the device comprises a dental device.

Clause 67: The device of any one of Clauses 44-66, wherein the dental device comprises a toothbrush.

Clause 68: The device of any one of Clauses 44-67, wherein the first implement and the second implement are independently selected from the group consisting of: a prophy cup, a bristle component, a flossing component, a polishing component, and a combination of two or more thereof.

Clause 69: The device of any one of Clauses 44-68, wherein the first implement and the second implement are independently selected from the group consisting of: a cleaning component, a polishing component, a sanding component, and a scrubbing component.

Clause 70: A head component, comprising: a head housing component comprising a head portion and a neck portion that are operably connected, or connectable, to one another, wherein the head portion comprises at least a top area that comprises at least a first top opening; a first head portion rotational component operably disposed at least partially in the head portion of the head housing component, wherein the first head portion rotational component is configured to rotate at least partially around a first head portion rotational axis, wherein the first head portion rotational component comprises at least a first implement, and wherein at least a segment of the first head portion rotational component extends at least partially into and/or through the first top opening of the head portion such that the first implement at least partially extends from the head portion; and a first channel at least partially disposed in the neck portion of the head housing component, wherein the first channel fluidly communicates with at least a portion of the first head portion rotational component; wherein the head component is configured to reversibly operably connect to a handle component that comprises a handle housing component and to a fluid container at least partially disposed in the handle housing component, which fluid container is configured to reversibly operably connect to the first channel such that when fluid flows from the fluid container through the first channel, the first head portion rotational component rotates at least partially around the first head portion rotational axis.

Clause 71: The head component of Clause 70, wherein the first head portion rotational component comprises at least one impeller structure.

Clause 72: The head component of Clause 70 or Clause 71, wherein the top area of the head component further comprises at least a second top opening, wherein a second head portion rotational component is operably disposed at least partially in the head portion of the head housing component, wherein the second head portion rotational component is configured to rotate at least partially around a second head portion rotational axis, wherein the second head portion rotational component comprises at least a second implement, wherein at least a segment of the second head portion rotational component extends at least partially into and/or through the second top opening of the head portion such that the second implement at least partially extends from the head portion, and wherein at least a portion of the first head portion rotational component is operably engaged with at least a portion of the second head portion rotational component such that when the fluid flows from the fluid container through the first channel, the first head portion rotational component and the second head portion rotational component rotate in directions that are substantially opposite one another.

Clause 73: The head component of any one of Clauses 70-72, wherein the head component comprises a second channel and/or one or more vent openings configured to receive exhaust fluid from the first head portion rotational component when the fluid flows from the fluid container through the first channel.

Clause 74: The head component of any one of Clauses 70-73, wherein the head component comprises one or more exhaust fluid fins that are configured to direct the exhaust fluid from the first head portion rotational component to the second channel and/or the one or more vent openings when the fluid flows from the fluid container through the first channel.

Clause 75: The head component of any one of Clauses 70-74, wherein the first channel comprises one or more openings disposed proximal to the first head portion rotational component that direct the fluid toward the first head portion rotational component when the fluid flows from the fluid container through the first channel to effect rotation of at least the first head portion rotational component.

Clause 76: The head component of any one of Clauses 70-75, wherein a manifold structure comprises the one or more openings of the first channel.

Clause 77: The head component of any one of Clauses 70-76, wherein the first head portion rotational component and the second head portion rotational component each comprise at least one impeller structure that operably engage one another.

Clause 78: The head component of any one of Clauses 70-77, wherein the impeller structure of at least the first head portion rotational component comprises at least a primary impeller and at least a secondary impeller.

Clause 79: The head component of any one of Clauses 70-78, wherein the first head portion rotational component and the second head portion rotational component each comprise at least one gear component that operably engage one another.

Clause 80: The head component of any one of Clauses 70-79, wherein the first implement and the second implement are independently selected from the group consisting of: a prophy cup, a bristle component, a flossing component, a polishing component, and a combination of two or more thereof.

Clause 81: A device comprising the head component of any one of Clauses 70-80.

Clause 82: A device, comprising: a head component that comprises: a head housing component comprising a head portion and a neck portion that are operably connected, or connectable, to one another, wherein the head portion comprises at least a top area that comprises at least a first top opening and at least a second top opening; a first head portion rotational component operably disposed at least partially in the head portion of the head housing component, wherein the first head portion rotational component is configured to rotate at least partially around a first head portion rotational axis, wherein the first head portion rotational component comprises at least a first implement, and wherein at least a segment of the first head portion rotational component extends at least partially into and/or through the first top opening of the head portion such that the first implement at least partially extends from the head portion; a second head portion rotational component operably disposed at least partially in the head portion of the head housing component, wherein the second head portion rotational component is configured to rotate at least partially around a second rotational axis, wherein the second head portion rotational component comprises at least a second implement, and wherein at least a segment of the second head portion rotational component extends at least partially into and/or through the second top opening of the head portion such that the second implement at least partially extends from the head portion; a rotational mechanism operably connected, or reversibly connectable, to the first head portion rotational component and to the second head portion rotational component; and a first channel at least partially disposed in the neck portion of the head housing component, wherein the first channel fluidly communicates with at least a portion of at least the first head portion rotational component; a handle component operably connected, or connectable, to the head component, which handle component comprises a handle housing component; and, a fluid source at least partially disposed in the handle housing component, which fluid source is operably connected, or connectable, to the first channel such that when fluid flows from the fluid source through the first channel, the first head portion rotational component rotates at least partially around the first head portion rotational axis in a first direction and the second head portion rotational component rotates at least partially around the second head portion rotational axis in a second direction or the first head portion rotational component rotates at least partially around the first head portion rotational axis in the second direction and the second head portion rotational component rotates at least partially around the second head portion rotational axis in the first direction.

Clause 83: The device of Clause 82, wherein the device comprises an operably connected switch or valve mechanism that is configured to selectively effect the fluid to flow from the fluid source through the first channel.

Clause 84: The device of Clause 82 or Clause 83, wherein the fluid source comprises a fluid container that is substantially completely disposed in the handle housing component.

Clause 85: The device of any one of Clauses 82-84, wherein the first head portion rotational component comprises at least one impeller structure.

Clause 86: The device of any one of Clauses 82-85, wherein the head component comprises a second channel and/or one or more vent openings configured to receive exhaust fluid from the first head portion rotational component when the fluid flows from the fluid source through the first channel.

Clause 87: The device of any one of Clauses 82-86, wherein the head component comprises one or more exhaust fluid fins that are configured to direct the exhaust fluid from the first head portion rotational component to the second channel and/or the one or more vent openings when the fluid flows from the fluid source through the first channel.

Clause 88: The device of any one of Clauses 82-87, wherein the first channel comprises one or more openings disposed proximal to the first head portion rotational component that direct the fluid toward the first head portion rotational component when the fluid flows from the fluid source through the first channel to effect rotation of at least the head portion rotational component.

Clause 89: The device of any one of Clauses 82-88, wherein a manifold structure comprises the one or more openings of the first channel.

Clause 90: The device of any one of Clauses 82-89, wherein the first head portion rotational component and the second head portion rotational component each comprise at least one impeller structure that operably engage one another.

Clause 91: The device of any one of Clauses 82-90, wherein the impeller structure of at least the first head portion rotational component comprises at least a primary impeller and at least a secondary impeller.

Clause 92: The device of any one of Clauses 82-91, wherein the first head portion rotational component and the second head portion rotational component each comprise at least one gear component that operably engage one another.

Clause 93: The device of any one of Clauses 82-92, wherein the fluid source is disposed at least partially external to the device.

Clause 94: The device of any one of Clauses 82-93, wherein a fluid container comprises the fluid source.

Clause 95: The device of any one of Clauses 82-94, wherein the fluid container comprises the fluid.

Clause 96: The device of any one of Clauses 82-95, wherein the fluid comprises a gas.

Clause 97: The device of any one of Clauses 82-96, wherein the gas is at least partially compressed.

Clause 98: The device of any one of Clauses 82-97, wherein the fluid comprises a liquid.

Clause 99: The device of any one of Clauses 82-98, wherein the fluid container is removable from the handle housing component.

Clause 100: The device of any one of Clauses 82-99, wherein the fluid container is configured to reversibly fluidly communicate with a fluid replenishing station that is structured to replenish fluid in the fluid container.

Clause 101: The device of any one of Clauses 82-100, wherein the fluid replenishing station comprises a gas compressor apparatus.

Clause 102: The device of any one of Clauses 82-101, wherein the head component and the handle component are fabricated integral with one another.

Clause 103: The device of any one of Clauses 82-102, wherein the head component is reversibly connectable to the handle component.

Clause 104: The device of any one of Clauses 82-103, wherein the head portion of the head component is reversibly connectable to the neck portion of the head component.

Clause 105: The device of any one of Clauses 82-104, wherein the device comprises a dental device.

Clause 106: The device of any one of Clauses 82-105, wherein the dental device comprises a toothbrush.

Clause 107: The device of any one of Clauses 82-106, wherein the first implement and the second implement are independently selected from the group consisting of: a prophy cup, a bristle component, a flossing component, a polishing component, and a combination of two or more thereof.

Clause 108: The device of any one of Clauses 82-107, wherein the first implement and the second implement are independently selected from the group consisting of: a cleaning component, a polishing component, a sanding component, and a scrubbing component.

Clause 109: A head component, comprising: a head housing component comprising a head portion and a neck portion that are operably connected, or connectable, to one another, wherein the head portion comprises at least a top area that comprises at least a first top opening and at least a second top opening; a first head portion rotational component operably disposed at least partially in the head portion of the head housing component, wherein the first head portion rotational component is configured to rotate at least partially around a first head portion rotational axis, wherein the first head portion rotational component comprises at least a first implement, and wherein at least a segment of the first head portion rotational component extends at least partially into and/or through the first top opening of the head portion such that the first implement at least partially extends from the head portion; a second head portion rotational component operably disposed at least partially in the head portion of the head housing component, wherein the second head portion rotational component is configured to rotate at least partially around a second rotational axis, wherein the second head portion rotational component comprises at least a second implement, and wherein at least a segment of the second head portion rotational component extends at least partially into and/or through the second top opening of the head portion such that the second implement at least partially extends from the head portion; a rotational mechanism operably connected, or reversibly connectable, to the first head portion rotational component and to the second head portion rotational component; and a first channel at least partially disposed in the neck portion of the head housing component, wherein the first channel fluidly communicates with at least a portion of at least the first head portion rotational component; wherein the head component is configured to reversibly operably connect to a handle component that comprises a handle housing component and to a fluid source at least partially disposed in the handle housing component, which fluid source is configured to reversibly operably connect to the first channel such that when fluid flows from the fluid source through the first channel, the first head portion rotational component rotates at least partially around the first head portion rotational axis in a first direction and the second head portion rotational component rotates at least partially around the second head portion rotational axis in a second direction or the first head portion rotational component rotates at least partially around the first head portion rotational axis in the second direction and the second head portion rotational component rotates at least partially around the second head portion rotational axis in the first direction.

Clause 110: The head component of Clause 109, wherein the first head portion rotational component comprises at least one impeller structure.

Clause 111: The head component of Clause 109 or Clause 110, wherein the head component comprises a second channel and/or one or more vent openings configured to receive exhaust fluid from the first head portion rotational component when the fluid flows from the fluid source through the first channel.

Clause 112: The head component of any one of Clauses 109-111, wherein the head component comprises one or more exhaust fluid fins that are configured to direct the exhaust fluid from the first head portion rotational component to the second channel and/or the one or more vent openings when the fluid flows from the fluid source through the first channel.

Clause 113: The head component of any one of Clauses 109-112, wherein the first channel comprises one or more openings disposed proximal to the first head portion rotational component that direct the fluid toward the first head portion rotational component when the fluid flows from the fluid source through the first channel to effect rotation of at least the head portion rotational component.

Clause 114: The head component of any one of Clauses 109-113, wherein a manifold structure comprises the one or more openings of the first channel.

Clause 115: The head component of any one of Clauses 109-114, wherein the first head portion rotational component and the second head portion rotational component each comprise at least one impeller structure that operably engage one another.

Clause 116: The head component of any one of Clauses 109-115, wherein the impeller structure of at least the first head portion rotational component comprises at least a primary impeller and at least a secondary impeller.

Clause 117: The head component of any one of Clauses 109-116, wherein the first head portion rotational component and the second head portion rotational component each comprise at least one gear component that operably engage one another.

Clause 118: The head component of any one of Clauses 109-117, wherein the first implement and the second implement are independently selected from the group consisting of: a prophy cup, a bristle component, a flossing component, a polishing component, and a combination of two or more thereof.

Clause 119: A device comprising the head component of any one of Clauses 109-118.

Clause 120: A method of operating a device, the method comprising rotating a first neck portion rotational component of the device, which first neck portion rotational component is operably engaged with a band component that is operably engaged with a first head portion rotational component that comprises at least a first implement such that the first head portion rotational component and the first implement rotate completely around a first head portion rotational axis in a first direction, thereby operating the device.

Clause 121: The method of Clause 120, further comprising rotating a second head portion rotational component of the device, which second head portion rotational component comprises at least a second implement and which second head portion rotational component is operably engaged with the band component such that the second head portion rotational component and the second implement rotate completely around a second head portion rotational axis in a second direction.

Clause 122: The method of Clause 120 or Clause 121, wherein the first and second implements comprise dental implements and wherein the method further comprises contacting the first dental implement and/or the second dental implement with one or more teeth and/or dental appliances of a subject.

Clause 123: A method of operating a device, the method comprising flowing a fluid through a first channel at least partially disposed in a neck portion of a head housing component of the device, which first channel fluidly communicates with at least a portion of at least a first head portion rotational component operably disposed at least partially in the head housing component, which first head portion rotational component operably engages a second head portion rotational component operably disposed at least partially in the head housing component such that the first head portion rotational component and the second head portion rotational component rotate in directions that are substantially opposite one another, wherein the first head portion rotational component comprises at least a first implement that at least partially extends from the head housing component of the device and wherein the second head portion rotational component comprises at least a second implement that at least partially extends from the head housing component of the device.

Clause 124: The method of Clause 123, comprising flowing the fluid through the first channel from a fluid container disposed in a handle housing component of the device.

Clause 125: The method of Clause 123 or Clause 124, wherein the first and second implements comprise dental implements and wherein the method further comprises contacting the first dental implement and/or the second dental implement with one or more teeth and/or dental appliances of a subject.

While the foregoing invention has been described in some detail for purposes of clarity and understanding, it will be clear to one skilled in the art from a reading of this disclosure that various changes in form and detail can be made without departing from the true scope of the invention. For example, all the techniques and apparatus described above can be used in various combinations. All publications, patents, patent applications, and/or other documents cited in this application are incorporated by reference in their entirety for all purposes to the same extent as if each individual publication, patent, patent application, and/or other document were individually indicated to be incorporated by reference for all purposes.