Abstract: In some preferred embodiments, the present invention provides an improved system and apparatus for cleaning the clipper blades at an intermediate step of hair cutting, to avoid hindrance of the hair sticking the blades. This ensures better handling and operation of the hair cutting tools. The apparatus can be removably worn any of the fingers of the Barber, as per the comfort and ease of operations felt by him. The invention suggests a cleaning barber brush apparatus that is conveniently adjusted to be worn in different fingers of different sizes, using elastic and rubber holding means.

Abstract: The present invention concerns a process for producing toothbrushes covered with bristles in an anchor-free manner, in which a tuft of bristles with cylindrical bristles and/or pointed bristles is introduced into a receiving recess of a mold of a bristle-providing machine and, by means of a profiled pin guided in the receiving recess, force is applied to the end facing the pin of the bristles of the tuft of bristles for the alignment thereof, so that the bristles of the tuft of bristles are aligned by means of an end face of the profiled pin and, as a result, form the topography that complements the topography of the end face of the profiled pin, wherein the profiled pin has on the end face that acts on the bristles a discontinuous surface, which forms multiple levels. This achieves a bristle area configuration that has multiple areas of use. A correspondingly produced toothbrush is also described.

Abstract: An toothbrush having a handle and a head. The handle may include a first component and a second component covering at least a portion of the first component. The first and second components may be chemically compatible. The first and second components may both comprise a hard polyolefin. The first and second components may have different transparencies. In one aspect, the first component may be opaque and the second component may be transparent or semi-transparent. In some aspects, the handle may also include a third component comprising a thermoplastic elastomer. Furthermore, there may be at least one projection extending outwardly from an outer surface of the first component.

Abstract: An oral care implement comprising a head and a handle is provided. The head comprises first and second faces. The first face includes a plurality of cleaning elements extending therefrom. The second face is located on an opposite side of the head to the first face. The head has a length in a direction along a longitudinal axis of the handle, and a width perpendicular to the length. The head has a proximal section adjacent to the handle and a distal section remote from the handle. The proximal section has a first maximum width and the distal section has a second maximum width, wherein the second maximum width is less than the first maximum width. The second face comprises a tissue cleanser, the tissue cleanser extending over a distal-most edge of the head and forming a ridge located on the distal-most edge of the head.

Abstract: An ultrasonic tongue cleaner applying high intensity non-attenuated ultrasound pressure waves to the tongue concurrently with the mechanical scraping action is disclosed. The ultrasound component is operative to damage and deactivate odor causing bacterial chains on the surface and in the folds of the tongue. A silver based antimicrobial attachment further enhances the performance of the tongue cleaner. Various configurations are disclosed, including user removable and replaceable tongue cleaner heads with and without antimicrobial silver. A motorized version featuring sonic frequency orbital vibration of the tongue cleaner head is described.

Abstract: A head for an oral care implement comprises a mounting surface and at least one tuft extending from the mounting surface. The tuft comprises a first group of filaments and at least a second group of filaments. The first group of filaments is surrounded by the second group of filaments. The filaments of the first group have a first length and the filaments of the second group have a second length, the first length being different from the second length. The difference in length between the first length and the second length is about 1.1 mm to about 1.9 mm.

Abstract: A locking structure for a replaceable toothbrush includes a locking plate and a brush head. An end portion of the locking plate includes elastic locking hooks, and the elastic locking hooks are arranged on the supporting platform. The brush head is replaceably installed on the supporting platform, and the brush head includes a brush head base and brush bristles. The brush head base includes a substrate and a surrounding plate extended from an edge of the substrate toward one side thereof, and the surrounding plate includes a locking slot for the elastic locking hook to lock thereon. The brush bristles are disposed on the substrate and extended away from the surrounding plate. Accordingly, the release of the locking and retrieval for disengagement of the brush head base are facilitated and the brush head base is firmly installed on the supporting platform.

Abstract: A method of manufacturing an oral care implement comprising: (a) providing a body comprising a handle portion and a head portion, the head portion having a hole extending there through from a first side to a second side; (b) providing a layer of first material on the handle portion and the head portion to form a subassembly comprising a handle section, comprising the handle portion and a first portion of the layer of first material, and a head section, comprising the head portion and a second portion of the layer of first material; and (c) then injection molding a second material onto the head section to form one or more oral care elements of the second material on the head section and a member of the second material in the hole, which member is unitary with the one or more oral care elements.

Abstract: An electric motorized toothbrush with a pair of bristle units spaced apart from each other by a gap and a third bristle unit bordering the gap by being closer to each of the bristle units of the pair than the bristle units of the pair are to each other. A motorized gear transmission, via associated spindles, rotates the pair of bristle units in opposite directions and either rotates or reciprocates the third bristle unit. The bristle units of the pair include a respective cylinder and bristles that extend radially outward from the respective cylinder and the bristles may be of varying lengths. The bristles rotate in a direction away from the gum line while the teeth are inserted into the gap.

Abstract: The new design of a toothbrush is designed so that it's easier to used compared to a normal toothbrush. It is designed so that the two sides clean the teeth or gums in one go and the inside front can clean the back ends of the gums and also inside the two sides in the front of the toothbrush has lower length bristles to brush the top of teeth or gums, also it is designed to rotate or swivel by handle to brush or clean and gaps which separate the gums or teeth. There can also be five separate heads that can slot on and slot of easily and safely and for safety the two sides that have bristles that extend from the base of the toothbrush curve in at the top and are at different lengths or heights. These bristles bend but do not stay bent.

Abstract: A toothbrush including a handle portion, a head portion, a plurality of bristles coupled to the head portion, and a neck portion. The neck portion is curved such that the neck portion is angled in a direction away from an axis the handle portion extends upon and is then angled in a direction towards the axis.

Abstract: A toothbrush head comprises a head base and a head frame framing the head base. The head base comprises a substrate with multiple sockets for inserting bristles. The substrate has an outer frame, a central component, and two lateral components. The outer frame comprises a space, a front inner wall, a back inner wall, and two lateral inner walls. The central component is positioned in the space of the outer frame and links to the front inner wall and the back inner wall thereof. Each of the two lateral components is positioned between the central component and each of the two lateral inner walls and links to each of the two lateral inner walls with junctions, respectively, allowing the two lateral components to be rotatable. The toothbrush head helps users to brush the teeth with Bass method without injuring the gingiva, and keeps the toothbrush clean after brushing the teeth.

Abstract: A cosmetics brush for applying cosmetics. The brush includes a rod, a ferrule formed at the end of the rod, the ferrule defining an insertion groove, and a bundle of fibers inserted in the ferrule. The insertion groove extends from an opening to a closed end and is defined by opposed side walls and opposed front and rear inside walls. The opposed side walls taper toward one another moving from the opening to the closed end.

Abstract: In various implementations, a dental hygiene system may include a dental powder. The dental powder may include one or more compounds comprising calcium and/or magnesium. The dental powder may include one or more probiotics, in some implementations. The dental hygiene system (e.g., dental powder) may include bismuth subsalicylate. The dental hygiene system may include an applicator and the dental powder may be applied to the applicator. A user may use the dental hygiene system to improve a user's dental hygiene.

Abstract: A mechanical toothbrush, including a housing portion extending along a longitudinal axis, a bristle shaft assembly including a shaft portion disposed within the housing and extending along the longitudinal axis, and a head portion disposed outside of the housing and having a plurality of bristles extending perpendicularly to the longitudinal axis around a circumference of the shaft portion, and an electronic controlling mechanism disposed within the housing portion, the electronic controlling mechanism activating the bristle shaft assembly to rotate about the longitudinal axis.

Abstract: The present invention is directed to a toothbrush (100) that incorporates tapered bristle filaments (141) in combination with tuft holes (142) of a reduced size, such as between 1.3 mm to 1.4 mm in diameter. In another aspect, the invention provides a toothbrush (100) that balances the number of tuft holes (142) and the number (X) of tapered bristle filaments (141) within each tuft hole (142) to achieve a unique ratio that reduces the cost of manufacture of the toothbrush (100) while maintaining a mouth-feel that consumers associate with a quality product. In still another aspect, the present invention provides a toothbrush (100) that incorporates tapered bristle filaments (141) and also achieves a balance between the perimeter of reduced size tuft holes (142) and the spacing between adjacent tuft holes (142) to achieve a unique ratio that reduces the cost of manufacture of the toothbrush (100) while maintaining a mouth-feel that consumers associate with a quality product.

Abstract: A contour-adjustable toothbrush is a device that provides a more thorough brushing experience while eliminating the need to remove the device from the mouth during brushing. A first brushing assembly and a second brushing assembly are slidably engaged into a housing handle that may be grasped by the user. The first brushing assembly and the second brushing assembly each include a flexible brush head with a concave surface. The concave surface of the first brushing assembly is oriented away from the concave surface of the second brushing assembly, enabling the first brushing assembly and the second brushing assembly to clean the upper teeth and lower teeth simultaneously. The first brushing assembly and the second brushing assembly are independently adjustable in order to adjust the length of the device. An electronic variant of the device includes a power supply and at least one actuator.

Abstract: An orthodontic toothbrush whose nylon bristles are configured in a radial pattern around a base wire or plastic cylinder, and is long enough to attain a cylindrical shape. That brush shape is then attached to a handle. The new pattern of bristles makes thorough cleaning above and below the brackets efficient and easy for all patients. The area between the brackets and the gum line, another area ordinarily missed during routine brushing is also now easily cleansed. The areas between the brackets are also easily cleansed since the radial design allows bristles to penetrate in all directions. Decalcification and decay both major problems during orthodontic treatment due to improper brushing technique can now be addressed.

Abstract: A toothbrush configured to provide improved cleaning of the rear surface of the upper and lower central and lateral incisors. The toothbrush includes a handle having a first end and a second end. The handle further includes an upper surface and a lower surface and additionally a middle portion intermediate the first end and second end. Secured to the first end is a first bristle group that is configured to extend downward therefrom. Adjacent to the first bristle group is a divider. The divider include a first surface proximate the first bristle group and a second surface opposite thereto. A second bristle group is secured to the second surface of the divider and extends toward said second end of said handle being perpendicular in orientation to said first bristle group. A recess is formed in the lower surface of the handle above the second bristle group.

Abstract: A power toothbrush includes a handle portion having a drive system therein for moving a set of bristles with a frequency and amplitude to produce clinically effective cleaning results. A modulation system modulates the drive signal by changing the frequency or duty cycle of the drive signal with a frequency varying modulation signal. The modulation frequency will increase from the start to the conclusion of a brushing event for cognitive stimulation while the modulation frequency will decrease between the start and conclusion of a brushing event for cognitive relaxation.

Abstract: A method for producing a toothbrush comprises providing a head, a neck portion, and a handle; providing a coupling element; and combining the neck portion to the handle by the coupling element so that an irreversible connection is formed. The individual parts of the toothbrush to be formed can be produced in parallel or successively, wherein some of the parts can be produced by injection molding. A toothbrush formed by the method comprises a head, a neck portion, and a handle; these elements can be produced as building blocks separately and may be connected to one another via a coupling element to form an inseparable connection.

Abstract: A toothbrush can include tufted bristles and tongue brush bristles that emanate from the same surface of the head. The tufted bristles can function primarily to clean the teeth whereas the tongue brush bristles can function primarily to clean the surface of the tongue. The tongue brush bristles can also insert between teeth and along the gum line when the toothbrush is used to brush the teeth thereby enhancing the toothbrush's effectiveness for removing bacteria, food particles, and/or soft plaque from the teeth.

Abstract: Provided is a dental ultrasonic cleaning device that efficiently cleans teeth or dentures in an oral cavity using ultrasonic waves. A dental ultrasonic cleaning device 1 emits ultrasonic waves through a cleaning-liquid (W1) to the surface of a cleaning-target 26, ultrasonically cleaning it. An ultrasonic horn 24 propagates ultrasonic waves being generated by an ultrasonic-wave transducer 23 and emits them from the vibratory surface 25 provided at the tip-end of the horn 24. A liquid-reserving part 27 is provided, surrounding the vibratory surface 25 of the ultrasonic horn 24, which temporarily reserves the cleaning-liquid (W1) between the vibratory surface 25 and the cleaning-target 26. A cap-member 33 is provided at a certain interval opposite the liquid-reserving part 27.

Abstract: An oral care implement including at least one spiral bristle. In one aspect, the invention can be an oral care implement having a handle; a head coupled to the handle; at least one bristle tuft extending from the head, the at least one bristle tuft comprising at least one spiral bristle comprising coextruded first and second strand components that are intertwined together to form the at least one spiral bristle; the first strand component comprising a first plastic and a first oral care additive; and the second strand component comprising a second plastic and a second oral care additive, Tine rein the first oral care additive is different than the second oral care additive.

Abstract: A head for an oral care implement comprises a mounting surface and at least one tuft extending from the mounting surface. The tuft comprises a first group of filaments and at least a second group of filaments. The first group of filaments is surrounded by the second group of filaments. The filaments of the first group have a longitudinal axis and a cross-sectional area extending in a plane perpendicular to the longitudinal axis, and the cross sectional area has a substantially circular shape with a first diameter. The filaments of the second group have a longitudinal axis and a cross-sectional area extending in a plane perpendicular to the longitudinal axis, and the cross sectional area has a substantially circular shape with a second diameter. The first diameter is smaller than the second diameter. The first diameter is about 0.15 mm to about 0.16 mm, preferably about 0.152 mm (6 mil) and the second diameter is about 0.17 mm to about 0.18 mm, preferably about 0.178 mm (7 mil).

Abstract: A toothbrush head with bristles comprising tapered and non-tapered bristles, in which the non-tapered bristles extend to two different lengths from the face, being a first greater length LN1 and a second shorter length LN2. In a preferred embodiment non-tapered bristles are combined with tapered bristles in tufts which are inclined in opposite directions away from and towards the grip handle.

Abstract: Apparatus is for user having teeth. Apparatus includes upper oral delivery mouthpiece and lower oral delivery mouthpiece each configured to be positioned in the mouth of the user. Upper oral delivery mouthpiece includes upper bendable assembly configured to urge upper oral delivery mouthpiece to conform, at least in part, to a curvature of the upper teeth of the user. Lower oral delivery mouthpiece includes lower bendable assembly configured to urge lower oral delivery mouthpiece to conform, at least in part, to a curvature of the lower teeth of the user.

Abstract: A toothbrush is disclosed. The toothbrush includes a brush head including one or more cleaning elements; a handle; and a neck connecting the brush head and the handle. The one or more cleaning elements include at least one or more elastomeric cleaning elements having a first plastic material and one or more bristle tuft cleaning elements. The at least one or more cleaning elements are embedded into a second plastic material by over-molding. The Shore hardness of the second plastic material is greater than the Shore hardness of the first plastic material and the brush head is formed from the second plastic material during over-molding of the one or more cleaning elements.

Abstract: A method for making a toothbrush including a handle, a head including at least one cleaning element extending therefrom, and a hinge arranged between the head and the handle, said hinge including a joint between the handle and the head of a harder thermoplastic component covered by a softer thermoplastic component is provided, the method including: forming a base body by injection molding of a first thermoplastic material forming one of the handle or the head, and injection molding of a second thermoplastic material for forming the other of the handle or the head to thereby fuse the second thermoplastic material against the first thermoplastic material; placing the base body into a further mold; and injection molding the softer thermoplastic component for covering the joint.

Abstract: Implementations of a tooth brush are provided. In some implementations, the tooth brush comprises a handle and a head attached to the handle where the head comprises three gears and three brushes attached to the three gears respectively. In some implementations, the tooth brush is configured such that one brush makes contact with the occlusal surfaces of a plurality of teeth and the remaining brushes make contact with the buccal side and lingual side of the plurality of teeth. In some implementations, the tooth brush further comprises a splash guard. In some implementations, the tooth brush further includes a suction tube to remove debris from the mouth. Methods of using the tooth brush also are provided.

Abstract: The invention concerns a toothbrush with a handle and a bristle-carrying head part, which are connected to each other by a neck part, the head part having a multiplicity of tufts of bristles consisting of bristles. An anchor is oriented at right angles to the longitudinal axis. Two or more tufts of bristles have a bristle tuft half with bristle ends standing up higher in relation to the bristle ends of the other bristle tuft half.

Abstract: An oral care implement is disclosed that comprises a handle and a head. The head comprises a base structure having a front surface. A cleaning element carrier is provided that includes a top surface and a bottom surface. The cleaning element carrier is supported so that the bottom surface of the cleaning element carrier is spaced from the front surface of the base structure. At least a portion of the cleaning element carrier is movable relative to the base structure in a direction towards the front surface of the base structure. A plurality of first cleaning elements are mounted to the cleaning element carrier and extend from the top surface of the cleaning element carrier. A plurality of second cleaning elements are mounted to the base structure and extend from the front surface of the base structure and beyond the top surface of the cleaning element carrier.

Abstract: A toothbrush comprising a tapered bristle having a cross-sectional profile with a major axis and a minor axis. In one embodiment, the invention can be an oral care implement comprising: a head; a handle; and at least one tapered bristle extending from a face of the head, the tapered bristle having a longitudinal axis and a transverse cross-sectional profile having a major axis and a minor axis, the major axis being longer than the minor axis.

Abstract: A swing-triggered flashing toothbrush comprises a hollow brush handle having a movement space; a transparent patterned layer formed on the surface of the hollow brush handle and having a press button and an operable grip coupled to the press button; a control circuit board arranged inside the hollow brush handle, and a metallic ball arranged inside the operable grip. The press button controls the operable grip to hold the metallic ball or release the metallic ball to the movement space. Once the metallic ball is released, a swing movement drives the metallic ball to hit the interior of an electric-connection chute of the control circuit board. Thus, the control circuit board is triggered to control a battery assembly to power light emitting elements. Thereby, the light emitting elements project light outwards through the transparent patterned layer.

Abstract: A toothbrush having a substantially vertical orientation while at rest on a supporting surface, including a body having one end provided with a tooth-brushing element and another opposite end, said body having at least a part configured so that when the toothbrush is inclined, even close to a horizontal position, the toothbrush automatically self erects to the substantially vertical orientation to prevent a contact of said tooth-brushing element with the supporting surface.

Abstract: A training toothbrush is for a user to hold its handle and to have his/her upper and lower tooth rows engaging with respective tooth-accommodating indentations while gliding the training toothbrush to and fro along curves of his/her upper and lower tooth rows. At the rear ends of the user's upper and lower tooth rows, the training toothbrush uses flexible tooth-cleaning bristles to scrub laterals of teeth at the ends of the upper and lower tooth rows. When the user glides the training toothbrush, its flexible connecting plates radially wiggle, and at the same time the flexible tooth-cleaning bristles are driven to axially move outward, thereby effectively cleaning the laterals of teeth at the ends of the upper and lower tooth rows.

Abstract: An oral hygiene implement includes a cleaning element carrier and a body. The body has a proximal end and a distal end. The cleaning element carrier has a first area and a second area wherein the second area is disposed inboard of the first area. The first area is attached to the body while the second area is unattached to the body. A bending element is disposed between the first area and the second area, thereby allowing the second area to bend/flex while the first area stays fixed to the body.

Abstract: A reaction and delivery implement that includes a handle configured for user manipulation, a head having a plurality of agent housing regions, the first agent housing region housing a first agent and the second agent housing region housing a second agent, the first and second agents being different. The head is configured to facilitate both prevention of intermixing of the first and second agents in a storage position as well as reaction of the first and second agents through intermixing in a delivery position so as to produce and apply a third agent to a contacted surface when in the delivery position. The reaction and delivery implement may be an oral care implement such as a toothbrush. The implement may also be motorized and may be used with a wide array of reactions.

Abstract: An oral care implement (100) having a head (120) that achieves an enhanced cleaning action during brushing. In one embodiment, the invention can be an oral care implement comprising: a handle (110) extending from a proximal end to a distal end; a head comprising: a cantilever (130) extending from the distal end of the handle; a spheroid (160) protruding from a front surface (131) of the cantilever; a rigid plate (140), the rigid plate spaced from the cantilever by a gap (151); and a first resilient material (150) in the gap flexibly coupling the rigid plate to the cantilever, the first resilient material encasing the spheroid and covering a rear surface (142) of the rigid plate and the front surface of the cantilever; a plurality of teeth cleaning elements (143) extending from a front surface of the rigid plate; and the rigid plate pivoting about the spheroid in response to brushing forces being applied to the head.

Abstract: An instrument for removing by suction saliva, water or other materials generated or used in connection with procedures carried out in the region of the mouth. The instrument includes a substantially tubular, elastic frame arranged for suction, a finger part for attaching the instrument to a finger, and a tip part located, in an axial direction, farther out than the finger part and including a suction inlet. The tip part is arranged to be rotatable around the axial direction of the frame.

Abstract: A toothbrush having a first set of bristle tufts arranged along a first row, the first set of bristle tufts attached to a head and oriented in a vertical position. The toothbrush has a second set of bristle tufts arranged along a second row, the second set of bristle tufts attached to the head and oriented at an angle that is between 4 and 10 degrees to the left of the vertical position. The toothbrush has a third set of bristle tufts arranged along a third row, the third set of bristle tufts attached to the head and oriented in the vertical position. The toothbrush has a fourth set of bristle tufts arranged along a fourth row, the fourth set of bristle tufts attached to the head and oriented at an angle that is between 4 and 10 degrees to the right of the vertical position.

Abstract: Embodiments include a toothbrush apparatus including an ergonomic handle portion having an axis. The apparatus also includes semi-automatic rotatable bristles disposed in a removable brush block. The apparatus further includes a brush block disposed at a proximal end of a brush block arm and a rotatable brush block arm disposed in a proximal end of a coupling joint. An axis of the brush block arm is angled between 90° to 120° with respect to the axis of the ergonomic handle portion. The coupling joint is coupled at a distal end to a rotor portion configured for rotation about the axis of the ergonomic handle portion. The coupling joint is configured as a double Cardan joint.

Abstract: An oral care implement comprising at least one tapered bristle. In one embodiment, the invention can be an oral care implement comprising: a handle; a head having a face; a tuft hole in the face, the tuft hole having a polygonal transverse cross-sectional profile; and a bristle tuft mounted in the first tuft hole and extending from the face of the head, the first bristle tuft comprising a plurality of tapered bristles.

Abstract: A short wavelength visible light-emitting toothbrush with an electronic interlock control device preventing operation when the toothbrush is removed from the user's mouth. The electronic interlock control over operation is necessary to prevent accidental eye exposure to the high intensity light source with a wavelength in the range of 400 nm to 500 nm. The light-emitting toothbrush activates upon formation of an electrical circuit between the brush handle in contact with the users hand and the brush head or brush bristles in contact with moisture contained in a human mouth such as saliva or water mixed with toothpaste but deactivates immediately when removed from the mouth, thus protecting the user's eyes from direct exposure to the high power light source contained in the brush-head.

Abstract: A modular component toothbrush includes a base portion, interchangeable hollow handle portion and a bristle brush portion that is selectively engageable with both handle portion and base portion for assembly. The modular component toothbrush may be personalization by interchangeability of the modular components of different colors and indicia provide for a variety of toothbrush configurations dependent on user's selection defining a custom build a brush toothbrush configuration.

Abstract: Methods of producing a unitary personal care article such as a toothbrush having an inner cavity.

Abstract: An oral-care implement having a longitudinal axis, a bristle carrier, and a plurality of cleaning including a spring-loaded cleaning element movably disposed in a channel formed in the bristle carrier and comprising a spring portion disposed in the channel and a projecting portion longitudinally adjacent to the spring portion and outwardly extending from the channel at an angle of projection relative to the longitudinal axis. The spring portion can elastically deform inside the channel to conform to the channel's shape, thereby causing the projecting portion to change its length and angle of projection.

Abstract: A holder for safely securing a gauze pad for use in a post-surgical area in the intraoral cavity of a patient in order to allow a blood clot to form in safe, hygienic and sanitary conditions. The holder provides a holding cavity wherein the gauze pad is secured and held. It also requires a handle section that allows the external control of the gauze pad by the patient. Embodiments having holding sections with different ergonomic shapes according to the particular position of the intraoral surgical area requiring placement of the gauze pad are described.

Abstract: An applicator is provided for a cosmetic product, in particular mascara. The applicator includes a brush which includes a core and fibers projecting from the core. At least one of the fibers includes an elongate portion made of a first material and a lobe arranged at an end of the elongate portion. The lobe in turn is made of a second material coating an end of the elongate portion.

Abstract: The power appliance (10) for cleaning teeth includes a drive system (16) and a substrate (10) for supporting a field of bristles (14) which contact teeth for cleaning. The drive system is connected to the substrate, moving the substrate in operation to produce an action of the bristle field against the teeth. The assembly, which includes internal stiffeners (60, 62, 64) in one embodiment, has two physical states, including a first state in which the substrate is softened so as to be formable to conform to the geometry of the teeth, and a second hardened state following its conformance to the teeth in which the substrate is sufficiently rigid to effectively transmit a driving motion to the bristles.