Toothbrush with optical indication element.

(54) Title: DENTAL BRUSH WITH OPTICAL INDICATOR ELEMENT.

(54) Title: TOOTHBRUSH WITH OPTICAL INDICATION ELEMENT.

(57) Summary

An oral hygiene implement is described in the present description. The oral hygiene implement has a handle; a head, and a neck arranged between the handle and the head. The head has a plurality of contact elements. A sealing element is located between the handle and the neck. The sealing element is translucent. An indicator element is located between the adjacent to the sealing element. A light emitting source supplies electromagnetic energy to the indicator element, and electromagnetic energy passes through the sealing element.

(57) Abstract

An oral hygiene implement is described herein. The oral hygiene implement has a handle; a head, and a neck disposed between the handle and the head. The head has a plurality of contact elements. A sealing element is positioned between the handle and the neck. The sealing element is translucent. An indication element is positioned between the adjacent the sealing element. A light emitting source provides electromagnetic energy to the indication element, and the electromagnetic energy passes through the sealing element.

_I KNOW_

StiCttBUIA W 'ÍOMOMfA

<img file="MX337192B_D0001.tif" />

Institute

Mexican Property

Industrial

<img file="MX337192B_D0002.tif" />

PATENT TITLE NO. 337192

Owner (s): THE GILLETTE COMPANY

Address: One Gillette Park, Boston, Massachusetts, 02127, USA

Denomination: DENTAL BRUSH WITH OPTICAL INDICATOR ELEMENT. Classification: IC 8: A46B15 / 00

Inventor (s): UWE JUNGNICKEL

REQUEST

<img file="MX337192B_D0003.tif" />

a: Twenty a) s

Fflsha de Vencin

The reference bracket is

Informity with the article cor da as of the date of the hos.

Who subscribes the present t Pro age Industrial (Daily

26 / / 2004, 06/16/2005, 25/0 inci). 4th and 12 * fraction!

01 / / 2002, 07/15/2004, 28/0 of the Mexican statute of the F and 5 'iciso a) of the Agreement qui Ofi

<img file="MX337192B_D0004.tif" />

lustrial.

'ogables, before the hey of the 15/1999, icción V si de el rganico'); 1st, 3rd of piety

<img file="MX337192B_D0005.tif" />

<img file="MX337192B_D0006.tif" />

Arenal No 550, Floor 1,

Col Pueblo Santa María Tepepan,

Xochimilco, CP 16020,

Mexico City

Tel. (55) 53 34 07 00 www impi.gob.mx

MX / 2016/13151

Μχΐα) χο »3) ooew

DENTAL BRUSH WITH OPTICAL INDICATOR ELEMENT

<img file="MX337192B_D0007.tif" />

FIELD OF THE INVENTION

The present invention pertains to a personal hygiene device, more particularly, to a personal hygiene device that includes a feedback system.

BACKGROUND OF THE INVENTION

The use of toothbrushes for cleaning teeth has long been known. There are two main classes of toothbrushes available to a user, i.e. manual toothbrushes and electric toothbrushes. For manual toothbrushes the user generally provides most of the cleaning motion. In contrast, for electric toothbrushes most of the cleaning movement is provided by the toothbrush. The electric toothbrush generally includes a dri ve mechanism to drive a brush head. Because the toothbrush includes a drive mechanism, electric toothbrushes are generally more expensive to produce than manual toothbrushes. Electric toothbrushes can also provide additional features to a user. For example, some electric toothbrushes can track the time a brush head is used and tell the user how long the brush head needs to be replaced. As another example, some electric toothbrushes can provide an indication to the user when the user brushes a predetermined amount of time.

<img file="MX337192B_D0008.tif" />

<img file="MX337192B_D0009.tif" />

It is generally thought that these characteristics_AND^or¡^^xp ^ jp

INDUSTRIAL replacement of a brush head, indication of brushing time, have a too prohibitive cost of implementation in manual electric brushes. Consequently, there is a need for a Personal Hygiene Implement that can provide these characteristics to a user while facilitating manufacturing in order to reduce costs.

BRIEF DESCRIPTION OF THE INVENTION

An oral hygiene implement made in accordance with the present invention comprises a handle, a head, and a neck disposed between the handle and the head. The head comprises a plurality of contact elements. An Indicator element has an external periphery. An output source has a communication signal with the indicator element. A reflective core is disposed within the indicator element, and the reflective core redirects light from the output source to the outer periphery of the indicator element.

In some embodiments, an oral hygiene implement made in accordance with the present invention comprises a handle; a head, and a neck arranged between the handle and the head. The head comprises a plurality of contact elements. A sealing element is located between the handle and the neck. An indicator element is located adjacent to the sealing element. A light emitting source provides electromagnetic energy to the indicator element y, where the electromagnetic energy passes through the sealing element.

BRIEF DESCRIPTION OF FIGUlWffp^Mffi? g industrial

<img file="MX337192B_D0010.tif" />

Figure 1 is a side view showing a left side of an oral hygiene implement, for example, a toothbrush, manufactured in accordance with the present invention.

Figure 2 is a plan view showing a subsection of the toothbrush of Figure 1.

Figure 3 is a cross sectional view of an outer cover of the oral hygiene implement of Figure 1.

Figure 4A is a close-up view showing a portion of the subsection of Figure 2.

Figure 4B is a close-up view showing another embodiment of a portion of the subsection of Figure 2A.

Figure 5 is a plan view showing the subsection of Figure

1.

Figure 6 is a close-up view showing an indicator element of the oral hygiene implement of Figure 1.

Figures 7A-7D are schematic representations showing patterns of reflective cores and external surfaces of indicator elements.

Figures 8A-8D are illustrative cross-sectional views of light emitting diodes (LEDs) that are suitable for use with the oral hygiene implement of the present invention.

, MEXICAN INSTITUTE

DETAILED DESCRIPTION OF THE INVENTION^PROPERTY

IMPI

INDUSTRIAL

<img file="MX337192B_D0011.tif" />

Definitions:

The following text presents a broad description of numerous different embodiments of the present invention. The description is illustrative only and does not describe every possible modality as that would not be practical, or perhaps it would be impossible, and it is understood that each characteristic, component, composition, ingredient, product, stage or methodology described in the present description can be deleted. , combine or replace, in whole or in part, by any other characteristic, component, composition, ingredient, product, step or methodology described in the present description. Various alternative modalities could be implemented through the use of current technology or technology developed after the date of filing of this patent, which will also be within the scope of the claims.

It should be further understood that a term is expressly defined in this patent with the phrase "As used herein, the term" is hereby defined to refer to ... ", or a similar phrase, is not intended to limit the meaning of that term, either explicitly or implicitly, beyond its literal and obvious meaning, and that term shall not be construed as limited in scope based on any statement made in any section of this patent (other than the wording of the claims). No term is essential to the present invention unless so indicated. Insofar as any term cited in the claims included at the end of this patent is mentioned in this patent so as to be consistent with a single meaning, this is done for clarity only so as not to confuse the reader, and it is not intended that the term of that claim is limited, implies or any other

IMPI,,. ..... „,,. MEXICAN INSTITUTE -pj mode have that unique meaning. Finally, unless claims are defined by mention of the word "means / refers to" and a function without mention of any structure, the scope of any element of the claims is not intended to be interpreted in accordance with the application of the USC Title 35, Article 112, sixth paragraph.

As used herein, "oral hygiene implement" refers to any device that can be used for oral hygiene purposes. Some suitable examples of these devices include toothbrushes (both manual and electric), flossing devices (both manual and electric), oral irrigators, and the like.

Description:

To facilitate the explanation, the oral hygiene implement described below should be a manual toothbrush; however, as mentioned above, an oral hygiene implement constructed in accordance with the present invention is not limited to a manual toothbrush construction.

As shown in Figure 1, a toothbrush 10 comprises a handle 12, a head 14, and a neck 16 extending between the handle 12 and the head 14. A contact element field 20 extends from a first surface Head 14A 14. Handle 12 may comprise a distal end 80 and a proximal end 90. A tongue cleaner, a soft tissue cleaner, massager, or the like may be disposed on second surface 14B of head 14. Tongue cleaners, soft tissue cleaners, massage elements, or the like are described below.

An indicator element 30 can be arranged between the handle 12 and the

IMPI neck 16 adjacent to the proximal end 90. The element Indicates ^ S ^ St &amp; SüOe

INDUSTRIAL a signal visible to a user for one of a plurality of conditions. For example, the visible signal may be provided when a user has been brushing for an adequate amount of time, for example, two minutes and / or when the toothbrush is to be replaced.

The indicator element 30 can be placed at any suitable place on the toothbrush 10. For example, in some embodiments, the indicator element 30 can surround the neck 16 or it can surround the handle 12. As another example, the indicator element 30 can surround a portion of handle 12 and / or a portion of neck 16. As yet another example, Indicator element 30 may be disposed on a rearward facing surface 40B of handle 12 and / or neck 16. As yet another example, indicator element 30 may be disposed on a forward facing surface 40A of handle 12 and / or neck 16.

Referring to Figures 1 and 2, in some embodiments, the handle 12 may comprise an outer cover 212. A variety of electronic elements may be provided in the outer cover 212. For example, an external power source may be accommodated in the outer cover 212. 215, 216, a timed circuit, a processor 240, a bandpass filter, and / or output sources 245, eg, audible sources, light sources, LEDs, combinations thereof, and / or the like. Outer cover 212 can accommodate a plurality of power sources where additional voltage is required, for example, to provide a voltage threshold for an LED.

In order to facilitate manufacturing, the outer shell 212 can be provided by injection molding. Thereafter, Insert 260 may be provided in outer cover 212. Insert 260 may provide support for power sources 215, 216, processor 240, and / or output source 245. Power sources

<img file="MX337192B_D0012.tif" />

215, 216 may be in electrical communication with the processor

<img file="MX337192B_D0013.tif" />

may be in electrical communication with output source 246, ———

Insert 260 may comprise base portion 260A and front portion 260B. Base portion 260A can provide support as described above and can comprise a PCB (printed circuit board). The front portion 260B may comprise a stem 275 that can be coupled to a recess in the neck 16 and / or the head 14. The coupling between the stem 275 and the neck 16 and / or head 14 can be permanent so that the neck 16 and / or head 14 are not removable. In contrast, the engagement between stem 275 and neck 16 and / or head 14 can be configured such that neck 16 and / or head 14 are removable from stem 275. In other embodiments, front portion 260B may comprise the neck 16 and / or head 14 that are integrally formed with other parts of front portion 260B. In such embodiments, the front portion 260B may not include a stem 275.

The front portion 260B may further comprise the indicator element 30, a sealing element 270 and a transmission element 231. The output source 245, for example an LED, may be in communication signal with the transmission element 231 Transmission element 231 can transmit a signal from output source 245 to indicator element 30.

The sealing element 270 can be coupled to an inner surface 375 (shown in Figure 3) of the outer cover 212, thereby reducing the likelihood of leakage into the cavity of the outer cover 212. The sealing element 270 it can comprise any suitable sealing characteristics. Some examples of sealing characteristics include deformable materials that can be compressed and then recovered within the cavity of outer cover 212, toned rings, etc. In some embodiments, a soft material can be attached to outer cover 212 to form a sell

OF INDUSTRIAL PROPERTY

<img file="MX337192B_D0014.tif" />

a soft material can be overmolded to the outer cover 212 and thereafter insert 260 can be inserted into the outer cover 212 and coupled to the soft material. In still other embodiments, a soft material may be a discrete element that is placed in insert 260 before coupling insert 260 to outer cover 212 or is placed in outer cover 212 before coupling insert 260 to outer cover 212. .

The sealing element 270 can comprise a first portion 270A and a second portion 270B. As shown, the first portion 270A can be arranged adjacent to the proximal end 90 of the handle. In an assembled state, the first portion 270A can be coupled to the inner surface 375 (shown in Figure 3) of the outer cover 212 and a surface of the indicator element 30 to reduce the likelihood of moisture entering the outer cover 212. The second portion 270B can be arranged adjacent to the neck 16 or the stem 275. In an assembled state, the second portion 270B can couple the neck 16 and the indicator element 30 to reduce the probability of moisture entering the outer cover 212. They are contemplated modalities where the sealing element 270 comprises only the first portion 270A or the second portion

270B.

In embodiments where the sealing element 270 includes both the first portion 270A and the second portion 270B, the indicator element 30 can be disposed between them. In such embodiments, the first portion 270A and / or the second portion 270B may be translucent, transparent, pigmented, or combinations thereof. Modes are contemplated where the sealing portion 270 comprises only the first portion 270A or the second portion 270B. In such embodiments, the first portion 270A, the second portion 270B, or the sealing member 270 may be transparent, translucent, pigmented, or combinations thereof.

IMPI »

Additionally, in these modalities, the light

INDUSTRIAL indicator 30 can be provided, in addition, to the first portion 270A and / or second portion 270B. In the case where the first portion 270A and / or 270B are transparent, the visible signal can be provided to the user by the indicator element 30 and the first portion 270A and / or second portion 270B. In the case where the first portion 270A and / or the second portion 270B are translucent, the visible signal may comprise a tone contrast between the visual signal of the first portion 270A and / or second portion 270B and the indicator element 30. In the case where the first portion 270A and / or the second portion 270B are pigmented and translucent or transparent, the light provided to the indicator element 30 can be combined to the color of the pigment of the first portion

270A and / or the second portion 270B to produce a unique visual effect. Consequently, the light provided may comprise a first color while the first pigmented portion 270A and / or the second pigmented portion 270B may comprise a second color. When light having a first color is provided to the first portion 270A and / or the second portion 270B, the first color and the second color may combine to produce a visible signal comprising a third color that is different from the first color and the second color. In such embodiments, the total visible signal may then comprise a first color via Indicator element 30 and a third color via first portion 270A and / or second portion 270B.

In some embodiments, the first portion 270A and / or second portion 270B may comprise a first color. In such embodiments, an output element, eg, a light emitting element, an LED, can emit a light having a second color that is similar to the first color. In such embodiments, it is believed that the visual signal provided by an output emitter element may be more visually perceptible to a user.

In still other embodiments, the first portion 270A may comprise a first color and

<img file="MX337192B_D0015.tif" />

the second portion 270B may comprise a second qirfe color_T© S5rSüsr © iSi

OF INDUSTRIAL PROPERTY color. In such embodiments, the output element, for example a light emitting element,

LED, can produce a light that has a third color that is different from the first and / or second color. The combination of the third color and the first color as well as the combination of the third color and the second color can produce unique visual effects that are perceivable by a user.

The front portion 260B can be attached to the base portion 260A in any suitable way. For example, transmission element 231 can be provided with grooves that engage corresponding rails in base portion 260A or vice versa. In some embodiments, the base portion 260A can be inserted into the outer cover 212, and thereafter, the front portion 260B can be inserted in engagement with the base portion 260A such that the sealing portion 270 is coupled to the outer cover 212. In others In modalities, the base portion 260A and the front portion 260B may be assembled before Inserting into the outer cover 212. This may facilitate any wiring of the output source 245 that may be required. Subsequently, Insert 260 (Including base portion 260A and front portion 260B) can be inserted into outer shell 212. In other embodiments, base portion 260A and front portion 260B can be integrally formed. However, in such modalities, additional electrical wiring steps may be necessary.

Referring to Figures 2 and 3, outer cover 212 may comprise supports 261 A, 261 Β, 262A, and 262B. Brackets 261 A, 261 Β, 262A, and 262B can secure Insert 260 on outer cover 212. Brackets 261 A, 261 Β, 262A, and 262B and / or insert 260 may comprise retainers that mate / receive between Yes, and thereby secure insert 260 in outer cover 212. As shown, supports 261 A, 261 Β, 262A, and 262B, can extend from an inner surface 375 of outer cover 212. As

<img file="MX337192B_D0016.tif" />

shown, supports 261 A, 261 Β, 262A, and 262B, may conffgunai ^^^ Dll insert 260 movement along lateral axis 1501 and / or movement along a transverse axis 1500, or combinations of these .

During manufacture, the outer shell 212 and / or Insert 260 can be produced by injection molding. An output source 245 and power sources 215, 216 can be placed in insert 260. Insert 260 can be linked by supports 261 A, 261 Β, 262A, and 262B. As an example, insert 260 can be slidably attached to supports 261 A, 261 Β, 262A, and 262B. The reduced number of parts for this modality can reduce the manufacturing time for the oral hygiene implement.

Referring to Figure 2, transmission element 231 can be configured to transmit a signal from output source 245 to Indicator element 30. For example, where output source 245 is an LED, transmission element 231 may be a light tube, a light guide, fiber optics, or the like. The material selected for the transmission element 231 can be a clear, transparent, translucent material or combinations of these that transmit light from the LED through the transmission element 231 to the Indicator element 30. Some examples of suitable materials for transmission element 231 include glass, polymethylmethacrylate, polycarbonate, copolyester, polypropylene, polyethylene terephthalate, combinations of these, eg, polyester and polycarbonate, or the like,

In some embodiments, the indicator element 30 and the transmission element 231 may be unitary. For example, transmission element 231 and Indicator element 30 can be integrally made of a first material during an injection molding process. In some embodiments, transmission element 231 may be a separate part that is subsequently connected to indicator element 30.

<img file="MX337192B_D0017.tif" />

In some embodiments, the indicator element 30, the element ^ áeJSar ^ nísron '; stem 235 and / or base portion 260A can be integrally formed. In some embodiments, indicator element 30, transmission element 231, and / or stem 275 can be integrally formed and subsequently attached to base portion 260A. The benefit of these modalities is that a minimum number of components is required for the brush, which can reduce the cost and / or assembly time.

Transmission element 231 can transmit electromagnetic energy, eg, visible light, to indicator element 30 by internal or external reflection. Internal reflections are reflections where light originates from a low refractive index material (such as air) and is reflected from a material with a higher refractive index (such as aluminum or silver). A common household mirror works by external reflection.

Internal reflections are reflections where light originates from a higher refractive index material (such as polycarbonate) and is reflected from a lower refractive index material (such as air, vacuum, or water). Fiber optic technology works on the principle of internal reflections.

The refractive index is an optical attribute of any material that measures the tendency of light to refract or bend as it passes through the material. Even materials that do not conduct light (such as aluminum) have refractive indices.

Typically, external reflections are most effective when the angle of incidence of light is nearly perpendicular (i.e., light approaches perpendicular to the surface), and degrades when the angle of incidence increases (approaches surface at an angle). pronounced). Conversely, Internal reflections are more effective at high angles of incidence and are not reflected at less steep angles, eg, perpendicular to the surface. In order to achieve internal reflection, the angle of incidence must be greater than the critical angle. The ¡ang^{| nI}^ i4 * ii ^^?i below which light is no longer reflected between a pair of materials.

MEXICAN INSTITUTE

.. * í ^ Γλί jfiZQf.iSOLCÜi EX I

<img file="MX337192B_D0018.tif" />

Referring again to Figures 2 and 3, for those embodiments of the present invention that use external reflection, a foil or some other highly reflective material may be used within the outer shell 212. The highly reflective material, eg, foil , may be disposed on the inner surface 375. In other embodiments, the highly reflective material, eg, foil, may be wrapped around the transmission element 231. A disadvantage of these modalities is that additional manufacturing steps may be required in order to provide the highly reflective material in the proper location (s).

For modalities that use internal reflection, a material can be selected that has a high refractive index, for example, greater than 1.0. For example, the material selected for transmission element 231 may comprise a refractive index greater than about 1.4, greater than about 1.5, greater than about 1.6, and / or less than about 1.7, less than about 1.6, less than about

1.5, any number within the values ​​provided or any range within the values ​​provided. In some embodiments, the material selected for transmission element 231 has a refractive index of about 1.4 to about 1.6.

Referring to Figures 4A through 4B, in such embodiments, an external surface 429, 1429, of transmission element 231, 431, may be polished. The polished outer surface 429, 1429 of the transmission element 231, 431, can reduce the amount of light bga of the transmission element 231, 431.

In some embodiments, transmission element 231 may comprise

MEXICAN INSTITUTE a receptacle 453 to receive the output source 450, for example, ufi^ANDÉí ^ siíiífeo

<img file="MX337192B_D0019.tif" />

453 may be arranged at one end 455 of the Aiomentn ría trangmfc¡nn 9R1 One benefit of implementing the receptacle 453 at the end 455 of the transmission element 231 is that during manufacturing, the output source 245 (shown in Figure 2) For example, an LED can be inserted into receptacle 453 and thereby reduces the risk of misalignment of output source 245 with respect to transmission element 231. This can help reduce the amount of light leakage between output source 245 and transmission element 231.

As mentioned above, to achieve Internal reflection, the angle of incidence of light must be greater than the critical angle. The angle of incidence of the light on the transmission element 231 can be affected by the distribution angle (described below) of the output source 245 or 1450 (shown in Figure 4B). For those output sources having a small distribution angle, the design of the receptacle 453, for example, the sides 453A and 453B perpendicular to the face 453C, may be sufficient to capture the majority of light emitted from the output source 245 for internal reflection. Generally, however, any light that is not above the critical angle will not reflect internally. Consequently, sides 453A, 453B and / or face 453C can be configured to increase the amount of light that is above the critical angle. For example, sides 453A and / or 453B may taper toward or away from face 453C. Generally speaking, face 453C may include an angled surface, multiple angled surfaces, curved surfaces, eg, lens-shaped, to increase the amount of light emitted that is above the critical angle.

Referring to Figure 4B, in some embodiments, a transmission element 431 can be configured with a flat surface at one end 1455 as shown in Figure 4B. In these modalities, a 2450 output source, for

IMri

INSTITUTE example, an LED, can be located at a distance 1460 from the extremq ^^^ St

<img file="MX337192B_D0020.tif" />

Effort to reduce the amount of light leakage from output source 9450. Distance B (1460) should generally be within the following guidelines.

5&lt;

Where a is half the angle a available from a manufacturer's specifications for a light output source, and where A (1457) is a projection leg on transmission element 431. Projection leg 1457 is the A straight line distance from the midpoint of the output source 2450 projecting onto the transmission element 431 to an edge 1459 of the transmission element 431.

For modalities using internal reflection, consider the distribution angle of the output source 450, 1450, for example, an LED. IF the distribution angle is very wide, a part of the light provided to the transmission element 231, 431 may not reflect internally and instead will leak from the transmission element 231, 431. Any suitable distribution angle can be used. Some examples of suitable distribution angles Include an angle greater than 0 degrees, greater than approximately 1 degree, greater than approximately 2 degrees, greater than approximately 5 degrees, greater than approximately 6 degrees, greater than approximately 8 degrees, greater than approximately achieved, greater than about 12 degrees, greater than about 14 degrees, greater than about 16 degrees, greater than about 18 degrees, greater than about 20 degrees, greater than about 22 degrees, and / or less than about 22 degrees, less than about 20 degrees, less than about 18 degrees, less than about 16 degrees, less than

<img file="MX337192B_D0021.tif" />

approximately 14 degrees, less than approximately ItémadosucAme ^r &gt; Ί r 56e U PROPERTY

INDUSTRIAL

<img file="MX337192B_D0022.tif" />

approximately achieved, less than approximately 8 degrees, or any number within the provided values ​​or any range within the provided values.

Additionally, modalities that include multiple output sources are contemplated. For example, a receptacle can be configured to have two LEDs placed on it. A first LED can provide a first output signal for one condition, for example, brushing time, while a second LED can provide a second output signal for a second condition, for example, when replacing the brush, where the first exit signal and the second exit signal are different. Similarly, in modes where the transmission element does not include a receptacle, a plurality of output sources can be used, for example, an LED.

Instead of a plurality of LEDs, modalities are further contemplated, wherein the output source comprises an LED having multiple dice, as described in the US patent application publication. USA no. 2005 / 0053896A1. As shown in Figure 8A, an LED 815 may include a lens 830, and a positive conductor 821 and a negative conductor 809. LED 815 may comprise more than one light emitter and more than one semiconductor substrate, and may have more of two conductors. Modes are contemplated where the LED comprises two dice. Additionally, modalities are contemplated where the LED comprises more than two dice.

For example, LED 815 may comprise multiple light emitting dies 805 and 817 and a wire junction 807 and 818. Wire junction 818 may serve as a connection between dies 805 and 817. This connection may be a parallel connection or a serial connection.

As shown in Figure 8B, an LED 815B (two-wire LED) can comprise multiple dies 805 and 817 connected in series. The 815B LED can include a

IMPIé&gt;

positive conductor 809 and a negative conductor 827. As

817 may have individual 837 and 839 support. The dice have a serial connection 811 that connects the top of the dice 805 to the bottom of the dice 817, and a wire connection 813 that connects the top of the dice 817 to the negative conductor

827. All light from light emitting sources can be combined to obtain a single light output on the 830 lens of the 815B LED.

As shown in Figure 8C, 815C an LED can include multiple 805 and 817 dice connected in parallel. LED 815C may comprise a single light output, lens 830, and a positive conductor 809, and a negative conductor 827. The dice may have a parallel connection, the 837 wire junction connecting the top of the dice 805 to the top of the dice 817, and the 807 wire junction connecting the top of the dice 817 to the top of the common negative conductor 827. All light from light emitting sources can be combined to obtain a single light output on the 830 lens of the 815C LED.

As shown in Figure 8D, 815D one LED (three-wire LED) can include multiple 805 and 817 dies. The 815D LED can comprise one lens 830, two semiconductor substrates, 805 and 817 dies shown connected in parallel, junctions per wire 819 and 821, one positive conductor 833 and two negative conductors 831 and 835. In addition, this 815D LED emits light from a single light output, the 830 lens. Each die can have an individual holder 837 and 839. It is further contemplated that LED 815D may comprise two positive conductors and one negative conductor; and dice 805 and 817 may be connected in series.

The LED may further comprise more than two semiconductor substrates with light emitting properties, and more than two conductors. The LED can have a common or shared conductor, or it can have individual conductors

IMPI-g ^ for each semiconductor substrate with emission properties'id ^^^^ gna ^^ SS This semiconductor substrate with light emission properties can be energized

Individually with a separate power source such as a battery.

An advantage of a three-wire LED, for example LED 815D, is that dies 805 and 817 can be operated Independently. For example, where the LED

815D comprises two positive conductors, the dice can be independently controlled. Therefore, the first die 805 can be operated at eighty percent capacity, while the second die 807 is operated at 20 percent capacity. As another example, the first die 805 can be operated at fifty percent, while the second die 817 can be operated at 100 percent. There are infinite combinations for the operating levels of the first die 805 and the second die 817. These combinations are believed to achieve color blends that create a unique visual effect for the user.

Light blends are also possible for two-wire LEDs. For example, the polarity of the supply voltage can be switched at a high enough speed, for example, greater than 70 Hz, to be able to drive the die and create a mixed color effect. When the polarity of the supply voltage is in a first state, a first die can receive power. When the polarity of the supply voltage is in a second state, a given second can receive power. IF the polarity of the supply voltage is switched fast enough, a user will be able to perceive a mixture of colors. Switching speed of voltage polarity

<td></td><td>supply can be</td><td>higher</td><td>than</td><td>approximately</td><td>70 Hz,</td><td>higher</td><td>than</td>

<td></td><td>about 80 Hz,</td><td>higher</td><td>than</td><td>approximately</td><td>90 Hz,</td><td>higher</td><td>than</td>

<td></td><td>about 100 Hz,</td><td>higher</td><td>than</td><td>approximately</td><td>110 Hz,</td><td>higher</td><td>than</td>

<td> 25</td><td>about 120 Hz,</td><td>higher</td><td>than</td><td>approximately</td><td>130 Hz,</td><td>less</td><td>than</td>

approximately approximately

130 Hz, lower

110 Hz, less than about

<img file="MX337192B_D0023.tif" />

UtDUi'tíUAL

<img file="MX337192B_D0024.tif" />

than approximately 100 Hz, less than approximately 90 Hz, or any number within the provided values ​​or any Range within the provided values.

As mentioned above, these dice can be electrically connected in parallel or in series. When connected to be, all considerations for current are the same as those applied for a single die. The total voltage can be approximated with the following equation:

y = Iyi + 1/2 + „. + V_fn where n is equal to the number of dice and V₍ = direct voltage for a particular die. If the dice are connected in parallel, the total voltage is approximately that of a single die.

The series connection is adequate because it adjusts for the differences between the dice. When connected in series, the dies automatically adjust their direct voltages, and their light intensity is very close. In either configuration, the two dice have approximately the light intensity of 1.6 x P¡, where P¡ is the light intensity of a single die. A three-dice LED will probably have a light intensity of approximately 2.26 x P¡. (Interference between the dice may prevent the calculation of light intensity from being a multiplier of the number of dice.) These dice may supply the same color of light, or may have different colors of light. However, if each Individual light emitter emits the same light, the Light intensity of that color light from that individual LED is greater than that of a common single LED that emits light of a single color.

An individual LED could also contain two da »

<img file="MX337192B_D0025.tif" />

OF INDUSTRIAL PROPERTY

<img file="MX337192B_D0026.tif" />

different from light, for example, a selected wavelength of an Interval greater than about 370, 380, 390, 400, 425, 440, 450, 475, 480 and / or up to about 500 nanometers. The dice could further be selected so that said dice emit light of a different wavelength within the same color range; for example, the dice could emit light with different wavelengths that results in blue. In addition, combining different wavelengths of light into a single optical LED output (the lens) could produce a specific combination of colors that provides an oral care benefit. Some colors are difficult to achieve with single wavelength light; This invention can be used to produce light in one of these unique colors. Therefore, combining different colors in the single optical output could produce a color that cannot be obtained with a single die.

For modalities comprising multiple LEDs or an LED with multiple dice, the oral hygiene implement of the present invention can provide multiple signals to the user. For example, a first die may be energized to provide a first visual indication to the user. For example, this first visual indication may be mapped to a predetermined amount of user brushing time. A second die can be energized to provide the user with a second visual indication. The second indication may indicate to the user that it is time to replace the oral care device. In these embodiments, the first visual indication may comprise a first color, while the second visual indication comprises a second color that is different from the first color. Any suitable color can be used.

With reference to Figure 5, as mentioned above, the

IMPI transmission element 231, 431, can transmit a signal

INDUSTRIAL electromagnetic, from output source 245, 2450, to Indicator element 30. In an effort to reduce the amount of energy leaking through stem 275, a reflective core 461 can be used (shown in Figure 6). For embodiments where front portion 260B comprises neck 16 and / or head 14, a reflective core may be used in neck 16 and / or head 14.

Referring to Figure 6, as shown, a reflective core 461 can be arranged in Indicator element 30 and extend to stem 275. Reflective core 461 can reduce the amount of light that is lost through stem 275 and into the neck and / or brush head. Additionally, reflective core 461 can assist in distributing light through indicator element 30 to a periphery 430 of indicator element 30. Also, in some embodiments, reflective core 461 can be configured to help provide light to first portion 270A and / or second portion 270B.

Reflective core 461 may comprise a polished area 467 having a face 468. Polished area 467 of reflective core 461 is that portion of reflective core 461 disposed within indicator element 30. The remainder of reflective core 461 may be polished, but not it needs to be. Polished area 467 can be configured to redirect light transmitted through the transmission element to indicator element 30, the first portion 270A and / or the second portion 270B.

Where Indicator element 30 is a ring, polished area 467 can be configured in the form of a cone (see Figure 7A). As shown in Figure 7B, where the Indicator element 30 comprises a ring, a polished area 467B may comprise multiple sides 767A-767D. As shown in Figure 7C, an indicator element 30C can comprise multiple sides 730A, 730B, 730C, 730D. And, a polished area 467C may similarly comprise multiple sides 767A-767D. How I know

<img file="MX337192B_D0027.tif" />

<img file="MX337192B_D0028.tif" />

Mexican INSTITUTE shows, the sides of the polished area 467C can be located at an angle r sides of the Indicator element 30C. As shown in Figure 7D, an indicator element 30D can comprise multiple sides 730A-730D. And, a polished area 467D can comprise multiple sides 767A-767D. The sides of the polished area 467D can be practically parallel to the sides of the Indicator element 30D. These settings are believed to produce a different visual effect than a polished area 467 that is tapered.

Referring again to Figure 6, the reflective core 461, as shown, may be a void that remains empty in the final product. In some embodiments, reflective core 461 can be partially filled with a material. Where the reflective core 461 is partially filled, an air gap can be provided between the fill material and the polished area 467. The existence of this air gap can ensure that internal reflection is maintained within indicator element 30. In some embodiments, reflective core 461 can be completely filled with a material that has a lower index of refraction than that of the reflective core material.

It is believed that without the reflective core 461, the indicator element 30 could emit less than about 10% of the light provided by the output source. Furthermore, it is believed that with the reflective core 461, the indicator element 30, the first portion 270A, and / or the second portion 270B could emit approximately 90 percent or more of the light provided by the output source. In some embodiments, the light emitted by the Indicator element 30 is greater than about 10 percent of the light provided by the output source, greater than about 20 percent, greater than about 30 percent, greater than about 40 percent, greater than about 50 percent, greater than about 60 percent, greater than about 70 percent, greater than about 80 percent, greater

IMPIOS

INSTITUTO MEXICANO less than approximately 90 percent, less than approximately 80 percent, less than approximately 80 percent, less than approximately 70 percent, less than approximately 60 percent, less than approximately 50 percent, less than about 40, less than about 30 percent, less than about 20 percent, or any number within the values ​​mentioned above or any range that includes and / or is within the values ​​mentioned above. A test method for measuring light emission efficiency is described below.

Toothbrushes manufactured in accordance with the present invention can provide feedback to the user through the indicator element for various conditions. For example, during a brushing session, a visible signal can be provided when the user has brushed their teeth for a predetermined amount of time, for example, two minutes, three minutes, etc. As another example, a visible signal can be provided to the user when the toothbrush is to be replaced. As another example, a visible signal can be provided to the user regarding the time the user has brushed during a number of brushing routines. In such embodiments, a first signal may be provided where the user has successfully brushed for a required period of time, eg, two minutes, for a predetermined number of brushing routines. A second signal may be provided to the user where the user has not brushed the required time for each and all of a predetermined number of brushing routines.

The signal provided to the user can be constant, for example providing a signal to the user throughout the brushing routine. Alternatively, the signal provided to the user can be provided at the end of the brushing routine. For example, where the user has not brushed for the predetermined amount of time, for example, two minutes, in

IMPI

MEXICAN INSTITUTE

FROM PROPERTY _ a previous brushing routine, the signal provided to the user may show red imclestello or

<img file="MX337192B_D0029.tif" />

a red signal visible for a predetermined period of time tlSflazed during a subsequent brushing routine. As another example, where the user has brushed for a predetermined amount of time during a previous brush routine, the signal provided to the user may show a green flash or a visible green signal for a predetermined period of time.

In other embodiments, the signal may be supplied to the user intermittently during the brush routine. For example, the signal may be supplied to the user at predetermined time intervals. For example, a signal can be provided to the user every 20 seconds. Any suitable time interval can be selected. For example, the time interval between signals may be greater than approximately 0.1 second, greater than approximately 0.2 seconds, greater than approximately 0.3 seconds, greater than approximately 0.4 seconds, greater than approximately 0.5 seconds, greater than approximately 0.6 seconds, greater than approximately 0.7 seconds, greater than approximately 0.8 seconds, greater than approximately 0.9 seconds, greater than approximately 1 second, greater than approximately 2 seconds, greater than about 3 seconds, greater than approximately 4 seconds, greater than approximately 5 seconds, greater than approximately 6 seconds, greater than approximately 10 seconds, greater than approximately 15 seconds, greater than approximately 20 seconds, greater than approximately 25 seconds, greater than approximately 30 seconds, greater than approximately 40 seconds, greater than approximately 50 seconds, greater than approximately 60 seconds, and / or less than about 60 seconds, less than about 50 seconds, less than about 40 seconds, less than about 30 seconds, less than about 25 seconds, less than about 20 seconds, less than

IMPI

MEXICAN INSTITUTE OF PROPERTY

INDUSTRIAL

<img file="MX337192B_D0030.tif" />

about 15 seconds, less than about 10 seconds, less than about 5 seconds, less than about 4 seconds, less than about 3 seconds, less than about 2 seconds, less than about 1.5 seconds, less than about 1, less than about 0.9 seconds , less than about 0.8 seconds, less than about 0.7 seconds, less than about 0.6 seconds, less than about 0.5 seconds, less than about 0.4 seconds, less than about 0.2 seconds, or less than about 0.1 seconds.

Previously, a time interval between signals was described. In some embodiments, a processor can be configured to modify the time interval between the signals provided to the user, either during a particular brushing routine or in a series of brushing routines. For example, during a first brushing routine, if the user brushes for a predetermined amount of time, for example, two minutes, the interval between signals to the user may be in a first interval of time. If in a second brushing routine, the user does not brush for the predetermined amount of time, the signals to the user may be in a second time interval. In such an embodiment, the first time slot may be less than the second time slot and thus provide more feedback to the user. In some embodiments, the time slots can be switched so that more feedback is provided to brush the predetermined amount of time.

Suitable materials for insert 260 should be selected so that the insert can resist forces, eg, no permanent deformation, minimal deflection if any of the front portion and / or base portion is applied during brushing. Additionally, suitable materials can be non-corrosive, rigid, transparent, and / or translucent. Some examples of materials

IMPI

Suitable Mexican INSTITUTE OF INDUSTRIAL PROPERTY that can be used for insert 260 Include polypropylene, acrylonitrile butadiene styrene, polyoxymethylene, polyamide, acrylonitrile styrene acrylate, and polletllenoterephthalate (PET), copolyester, combinations of these, combinations of polyester and polyester Xylex ™.

The outer cover 212 can be any suitable material. Some examples of suitable materials include polypropylene, ABS (acrylonitrile butadiene-styrene copolymer), ASA (acrylonitrile-styrene-acrylate), copolyester, POM (polyformaldehyde), combinations thereof, and the like. Suitable additional materials include polypropylene, nylon, high-density polypropylene, other stable moldable polymers, the like, and / or combinations thereof. In some embodiments, the handle, neck, and / or head may be formed from a first material and include cavities, channels, or grooves to receive a second material that is different from the first. For example, the handle may include an elastomeric grip feature or a plurality of elastomeric grip features. Elastomers among the plurality of elastomeric gripping characteristics may be similar or different materials, eg, color, hardness, combinations thereof, or the like.

The sealing element 270 can comprise any suitable material. Some examples of suitable materials include thermoplastic elastomers, silicone-based materials, NBR (nitrile butadiene rubber), EPDM (ethylene propylene diene monomer), Viton ™, etc.

In some embodiments, recycled and / or plant derived plastics can be used. For example, in some embodiments, PET (polletlen terephthalate) may be used. PET can be a biologically based PET. For example, PET can comprise from about 25 to about 75 weight percent of a terephthalate component and from about 20 to about 50

<img file="MX337192B_D0031.tif" />

IMPI

MEXICAN INSTITUTE

<img file="MX337192B_D0032.tif" />

percent by weight of a diol component, where at least ^ e ^ QXlffi ^ damontén ^ g percent by weight of at least one of the terephthalate component and / or component ¿e .......

Diol is derived from at least one biologically based material. Similarly, the terephthalate component can be derived from a biologically based material. Some examples of suitable biologically based materials include, but are not limited to, corn, sugarcane, beets, potatoes, starch, citrus fruits, woody plants, cellulosic lignin, vegetable oil, natural fibers, oily wood raw materials, and a combination of these.

Some of the specific components of PET may be biologically based. For example, monoethylene glycol and terephthalic acid can be formed from biologically based materials. The formation of bio-based PET and its manufacture are described in the publication of US patent applications. USA no. 20090246430A1 and 20100028512A1.

In some embodiments, the toothbrush may include a replaceable head, eg 14 and / or a neck 16. Specifically, the head 14 may be removable from the neck 16 and / or the neck 16 may be removable from the handle 12. In the In the present invention, whether the head 14 is removable from the neck 16 or the neck 16 is removable from the handle 12, said replaceable elements will be called "refills". In such modalities, the processor can be programmed with a plurality of algorithms in order to establish a period of time for the cumulative use of a particular recharge and / or for the identification of a particular use. Some suitable examples of oral care implements that may recognize a particular refill are described in US Patents. USA no. 7,086,111; 7,207,080; and 7,024,717.

The interconnectivity between the neck 16 and the handle screed 12 can be provided in any suitable way. Some suitable modalities are

IMPI ^&gt;

INSTITUTO .MEXICANO describe regarding US patents. USA no.

7,024,717. -_____

The toothbrush of the present invention may further comprise an energy source, as described above. The power source can be any suitable element that can supply power to the toothbrush. A suitable example includes batteries. The battery can be sized to minimize the amount of actual state required within the toothbrush. For example, where the output source consists of a light emitting element, the power source may be relatively small in size, for example, smaller than a triple A battery. The battery may be rechargeable or it may be disposable.

Additionally, a plurality of batteries can be used. In some embodiments, the power source may include alternating current power, as provided by the home utility. Other suitable energy sources are described in the US patent application. USA no. serial

12/102881, filed on April 15, 2008 and titled “Personal Care Products and

Methods ”.

In some embodiments, a switch can be provided that can be actuated by a user to allow the user to control the moment the timer indication begins. The switch (shown, may have electrical communication with the power source and the output signal element and / or the timer.

The elastomeric grip features of the handle can be used to overmold, at least in part, a portion of the timer, an output signaling element, a processor, a cap and / or a power source. In these modalities, these components can communicate electrically by means of

IMPI

MEXICAN INSTITUTE CE THE INDUSTRIAL PROPERTY

<img file="MX337192B_D0033.tif" />

threads that can easily be overmoulded. Elastomeric grip features may include portions positioned to be grasped with the user's palm and / or portions positioned to be grasped with the user's thumb and forefinger. These elastomeric gripping characteristics may be composed of the same material or may be different, for example, color, shape, composition, hardness, the like, and / or combinations thereof.

Additionally, as used in the present description, the term "contact elements" is used to refer to any suitable element that can be inserted into the oral cavity. Some suitable elements include bristle plumes, elastomeric massage elements, elastomeric cleaning elements, massage elements, tongue cleaners, soft tissue cleaners, hard surface cleaners, combinations thereof, and the like. The head can comprise a variety of contact elements. For example, the head may comprise bristles, abrasive elastomeric elements, elastomeric elements in a particular orientation or arrangement, eg, pivoting fins, cups for dental prophylaxis, or the like. Some suitable examples of massager elements and / or elastomeric cleaner elements are described in the US patent application publication. USA no. 2007/0251040; 2004/0154112; 2006/0272112; and in US patents. USA no. 6,553,604; 6,151,745. The cleaning elements can be conical, low-cut, wavy, dimpled, or the like. Some suitable examples of these cleaning elements and / or massage elements are described in US Pat. USA no. 6,151,745; 6,058,541; 5,268,005; 5,313,909; 4,802,255; 6,018,840; 5,836,769; 5,722,106; 6,475,553; and the publication of a US patent application. USA no. 2006/0080794.

The contact elements can be attached to the head in any suitable way. Conventional methods include stapling, inserting

ΙΜΡΙ

<img file="MX337192B_D0034.tif" />

tufts without anchoring and inserting tufts by molding

INDUSTRIAL contact elements comprising an elastomer, these elements can be integrally formed with each other, for example, by having an integral base portion and extending from there to the outside.

The head may comprise a soft tissue cleaner constructed of any suitable material. Some examples of suitable materials include elastomeric materials; polypropylene, polyethylene, etc .; the similar, and / or combinations of these. The soft tissue cleaner may comprise any suitable soft tissue cleaning element. Some examples of these elements as well as configurations of soft tissue cleaners in a toothbrush are described in US patent applications. USA no. 2006/0010628; 2005/0166344; 2005/0210612; 2006/0195995; 2008/0189888; 2006/0052806; 2004/0255416; 2005/0000049; 2005/0038461; 2004/0134007; 2006/0026784; 20070049956; 2008/0244849; 2005/0000043; 2007/140959; and US patents. USA no. 5,980,542; 6,402,768; and 6,102,923.

For embodiments that include an elastomeric element on a first side of the head and an elastomeric element on a second side of the head (opposite the first), the elastomeric elements may be integrally formed by channels or spaces extending through the material of the head . These channels or spaces can allow the elastomeric material to flow through the head during an injection molding process so that both first and second side elastomeric elements can be formed in an injection molding step.

Test method to determine the efficiency of light emission

Three samples are collected from the brush to be tested and three

ΙΜΡΙ

Mexican Institute of Industrial Property

<img file="MX337192B_D0035.tif" />

samples of the output source used in the brush. The samples from the output source must be identical to those used on the brush. All samples, i.e., three samples from the brush and three samples from the output source, are taken to an independent test center. The test center will test each of the three brush samples and each of the output source samples on an appropriately sized integration sphere. For example, a 30.5 cm (12 inch) integration sphere may be suitable to accommodate brush samples.

The test center will calibrate all equipment prior to measurement of any of the samples. The samples from the output source will be tested before testing the brushes. The test center will place a sample of the output source in the sphere of integration in accordance with standard test procedures. The output source will be electrically powered with the same voltage as that provided on the brush. Specifically, if the brush uses two 1.5-volt clock batteries, then the output source will be electrically powered, similarly, with two 1.5-volt clock batteries.

The output source is turned on, the integration sphere is closed, and all light radiated from the output source is measured. Each of the remaining samples from the output source should be similarly measured. The total light output of each of the samples from the output source is recorded and recorded for each sample.

The sample outlet source is removed from the integration sphere before testing a sample brush. A sample brush is placed in the integrating sphere configured in such a way as to activate the brush output source without obstructing the light emitted from the brush indicator element. For example, when the indicator element provides a visual indication that too much pressure is being applied, a harness can be used to move the brush head / neck to ensure that the brush

MEXICAN INSTITUTE OF PROPERTY indicator element / output source are activated. Total light is measured.

<img file="MX337192B_D0036.tif" />

sample brush. Repeated for the other brush samples.

The total light irradiated from sample output source one is divided by the total light irradiated from sample brush one. Then the quotient is multiplied by 100 to determine percent one. The total light irradiated from sample two output source is divided by the total light irradiated from sample two brush. Then the quotient is multiplied by 100 to determine percentage two. The total light irradiated from sample output source three is divided by the total light irradiated from sample brush three. Then the quotient is multiplied by 100 to determine percent three. Percentages one, two and three are averaged to obtain the percentage of effectiveness.

The dimensions and values ​​described in the present description should not be interpreted as strictly limited to the exact numerical values ​​expressed. Instead, unless otherwise specified, each dimension is intended to refer to both the expressed value and a functionally equivalent range approximate to that value. For example, a dimension expressed as "40mm" will be understood as "approximately 40mm".

All documents cited in the present description, including any cross-reference or related application or patent, are incorporated in their entirety in the present description by reference unless they are expressly excluded or limited in any other way. The mention of any document is not an admission that it constitutes a prior matter with respect to any invention described or claimed in the present description or that by itself, or in any combination with any other reference or references, teaches, suggests or describes said invention. . Furthermore, to the extent that any meaning or definition of a term in this document contradicts

IMPI

MEXICAN INSTITUTE OF INDUSTRIAL PROBITY

<img file="MX337192B_D0037.tif" />

any meaning or definition of the same term in a document Incorporated for reference, the meaning or definition assigned to that term in this document shall govern.

Although particular embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, the appended claims are intended to cover all those modifications and changes that are within the scope of this Invention.