RU2228129C2 - Tooth-brush (variants) - Google Patents

Tooth-brush (variants) Download PDF

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Publication number
RU2228129C2
RU2228129C2 RU99111087/12A RU99111087A RU2228129C2 RU 2228129 C2 RU2228129 C2 RU 2228129C2 RU 99111087/12 A RU99111087/12 A RU 99111087/12A RU 99111087 A RU99111087 A RU 99111087A RU 2228129 C2 RU2228129 C2 RU 2228129C2
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RU
Russia
Prior art keywords
head
toothbrush
handle
bristles
bundle
Prior art date
Application number
RU99111087/12A
Other languages
Russian (ru)
Other versions
RU99111087A (en
Inventor
Донна БИЛЗ (US)
Донна БИЛЗ
Майзи ВОНГ-ПАРЕДЕЗ (US)
Майзи ВОНГ-ПАРЕДЕЗ
Томас Крейг МАСТЕРМАН (US)
Томас Крейг МАСТЕРМАН
Майкл РОБЕРТС (US)
Майкл РОБЕРТС
Брэдли КАСТИЛЛО (US)
Брэдли КАСТИЛЛО
Original Assignee
ДЖИЛЛЕТ КАНАДА Инк.
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Family has litigation
Priority to US96829397A priority Critical
Priority to US08/968,293 priority
Priority to US09/177,991 priority
Priority to US09/177,991 priority patent/US6308367B1/en
Application filed by ДЖИЛЛЕТ КАНАДА Инк. filed Critical ДЖИЛЛЕТ КАНАДА Инк.
Publication of RU99111087A publication Critical patent/RU99111087A/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26873851&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=RU2228129(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application granted granted Critical
Publication of RU2228129C2 publication Critical patent/RU2228129C2/en

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    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04Arranged like in or for toothbrushes
    • A46B9/045Arranged like in or for toothbrushes specially adapted for cleaning a plurality of tooth surfaces simultaneously
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • A46B5/02Brush bodies; Handles integral with brushware specially shaped for holding by the hand
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • A46B5/02Brush bodies; Handles integral with brushware specially shaped for holding by the hand
    • A46B5/026Grips or handles having a nonslip section
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04Arranged like in or for toothbrushes
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B2200/00Brushes characterized by their functions, uses or applications
    • A46B2200/10For human or animal care
    • A46B2200/1066Toothbrush for cleaning the teeth or dentures

Abstract

FIELD: care of mouth cavity. SUBSTANCE: tooth brush has handle, head going on from this handle and collection of wisps of bristle fixed in this head. One wisp of bristle is fixed in point most distant from handle. This wisp is inclined at angle of approximately 81 degrees or less to imaginary line, which is tangential with regard to surface of head, and through which mentioned wisp of bristle passes being fixed in head. Mentioned wisp of bristle is tilted away from handle in same direction along which head goes from handle. EFFECT: increased efficiency of teeth cleaning. 31 cl, 7 dwg

Description

The present invention relates generally to the field of oral care and, in particular, to toothbrushes. More specifically, the present invention relates to toothbrushes having a spatial profile of the bristles, providing improved cleaning of the interproximal and gingival areas of the teeth.
Brushing teeth with a toothbrush and flossing the interdental spaces are the main operations to achieve a good sanitary condition of the oral cavity. Unfortunately, the practice of flossing the interdental spaces was not widespread and did not take root among the population, even though it was generally recognized by the population that flossing the interdental spaces was something that nevertheless should be regularly done as one of measures to maintain the oral cavity in good sanitary condition. Moreover, even those people who comparatively often floss the interdental spaces, do not clean well the interdental spaces in hard to reach areas of the mouth. Unfortunately, while the majority of toothbrushes sold for general sale clean the external intraoral surfaces of the teeth well enough, they do not allow to achieve improved quality of cleaning plaque and removing food debris from the gingival margin, from the interproximal areas, lingual surfaces and other hard to reach areas of the oral cavity.
One reason that such toothbrushes are not able to clean the extreme posterior large molars (such as wisdom teeth or second permanent large molars) well enough is because one or more tufts of bristles attached to the head of the toothbrush at the farthest away from the handle of the toothbrush, are not tilted in the same direction in which the indicated head moves away from this handle. Essentially, these tufts of bristles cannot go so far beyond the tip of the head of the toothbrush to sufficiently clean the large molars located in the back of the mouth.
In addition, even in such toothbrushes, some bristle tufts of which are inclined to the handle and others are tilted in the opposite direction from the handle, all these bristle tufts have substantially the same length and the same cross section. Therefore, while these angled tufts of bristles can clean one part of the teeth with satisfactory quality, other parts of the teeth will not be cleaned well enough because the tufts of bristles on these toothbrushes have the same length, the gaps between them and cross section.
In addition, toothbrushes known from the prior art are characterized by the presence of bristle tufts of at most three different types in cross section. However, teeth are characterized by the presence of more than three parts that need to be cleaned with a toothbrush (for example, the external intraoral surface, gingival margin, interproximal areas, lingual surfaces and extreme posterior large molars). Essentially, toothbrushes known from the prior art do not provide bristle tufts that are sufficiently diverse in cross section and specifically designed to clean all areas of the teeth.
The present invention is directed to solving one or more of the above problems. In a concise form, the essence of the present invention in one of the variants of its implementation is that the toothbrush contains a handle, a head extending from this handle, and many tufts of bristles attached to the specified head. One of the tufts of bristles is fixed in the head in such a place where no other tufts are fixed in the head in such a place that is more remote from the handle than the place where the specified one tuft of bristles is fixed in the head. Moreover, the specified one tuft of bristles is inclined at an angle of about 81 ° or less to an imaginary line that is tangential or coplanar with respect to the surface of the head, and through which the specified one tuft of bristles is fixed in the head. The specified one tuft of bristles is inclined from the handle in the direction along which the head moves away from the handle.
Due to the inclination of the specified one bundle of bristles at an angle, as indicated in the previous paragraph, this bundle of bristles is able to pass beyond the tip of the head of the toothbrush and at the same time clean the large molars located in the back of the mouth, to obtain a more satisfactory quality.
In accordance with another embodiment of the present invention, the toothbrush also comprises a handle, a head extending from the handle, and a plurality of tufts of bristles fixed to said head. Two of these tufts of bristles are inclined at an acute angle to an imaginary line that is tangential or coplanar with respect to the surface of the head, and through which the two specified tufts of bristles are fixed in the head. These two tufts of bristles have different characteristics that distinguish them relative to each other and are selected from the group of characteristics consisting of length, cross section, color, material, as well as various combinations of these characteristics.
Due to the presence of angled tufts of bristles that differ in length, cross section, color, materials, or several of these characteristics in combination with each other, it is possible for such angled tufts of bristles to clean more than one part teeth. For example, angled tufts of bristles of one type will clean the external intraoral surfaces of the teeth, while angled tufts of bristles of another type will clean the interproximal areas of the teeth.
According to a third embodiment of the present invention, the toothbrush also comprises a handle, a head extending from the handle, and a plurality of tufts of bristles fixed to said head. This plurality of bristle tufts includes tufts of at least five different types of cross section.
Due to the presence of bristle tufts of at least five types of transverse sections, these tufts are able to clean all areas of the teeth (e.g., the outer intraoral surface, gingival margin, interproximal areas, lingual surfaces and extreme posterior large molars) appropriately.
These and other features, objectives, features and advantages of the present invention will become more clear and obvious when considering the following detailed description of the preferred options for its implementation and the following claims, as well as the accompanying drawings with reference to this description.
Figure 1 is a perspective view of a toothbrush in accordance with the present invention.
Figure 2 is a top view of the toothbrush shown in figure 1.
Figure 3 is a side view of the toothbrush shown in figure 1.
4 and 5 are partially depicted side views of the head and corresponding sections of the tufts of bristles for the toothbrush shown in figure 1.
6 is a partially depicted sectional view of a toothbrush head constructed along line 6-6 of FIG. 3.
Fig.7 is a perspective view of the head and part of the handle of the toothbrush shown in Fig.1.
As can be seen from FIGS. 1-3, the toothbrush 10 includes a part in the form of a handle 12 and a part in the form of a head 14, which extends from the handle in the direction D. In the preferred embodiment, the total length of the toothbrush 10 is approximately 7.7 inches (195.58 mm), and the width of the head 14 in its widest part is in the indicated preferred embodiment about 0.5 inches (12.7 mm). The main part 16 of the handle 12 and the head 14 are made of polypropylene in the form of a single part. The rest of the handle 12, including the thumb-gripping portion 18, the trademark 24, optionally used (and in a preferred embodiment, having a length of about 0.83 inches (21.082 mm), and the gripping portion 20, with the rest of the fingers are preferably made from a thermoplastic elastomer, preferably craton rubber (hydrogenated or non-hydrogenated oil-filled block copolymer of styrene and butadiene or isoprene having a shore hardness, scale A, in the range between about 5 approximately 70). Part 18 for grip with the thumb and part 20 for grip with the other fingers have a series of convex ribs 22 with a total of seventeen ribs that contribute to a better grip of the handle. The ribs 22 are preferably 0.05 inches wide ( 1.27 mm).
As can be seen from figure 3-7, there are many tufts 26 of bristles fixed in the head 14 of the toothbrush. Each such tuft is composed of a large number of individual bristles, and all of these bristles in a preferred embodiment have a rounded tip. There are a total of five different types of bristle tufts fixed to the head, each of these types of bristle tufts having a cross section that differs both in area and in shape from all other types of bristle tufts.
The first type of bristle tufts, type 28, is made of individual bristles made of polybutylene terephthalate (PBT) containing an abrasive material, for example, such as porcelain clay particles uniformly distributed over the total mass of polybutylene terephthalate (PBT) by mixing. These bristles have a diameter in the range of between about 0.005 and 0.009 inches (0.127-0.2286 mm), and in a preferred embodiment, a diameter of about 0.007 inches (0.1778 mm). The length of these bristles when measured from the surface 30 of the head 14 is approximately 0.440 inches (11.176 mm). The cross-sectional area per beam of bristles 28 is approximately 0.0373 square meters. inches (0.24 cm 2 ), which gives the volume of this bundle of bristles when measuring it from the surface of the head, amounting to approximately 0.0164 cubic meters. inches (0.269 cm 2 ) it is preferable that this volume be in the range between about 0.015 and 0.018 cubic meters. inches (0.246-0.295 cm 3 ). It is envisaged that there is only one bundle of bristles of type 28 fixed in the head 14, and it is located further from the handle 14 than any other bundle of bristles.
The second type of bristle tufts, type 32, is made of individual bristles made of nylon of the type indicated by the trademark "Indicators", which is obtained from nylon grade 6.12 with the color of its outer surface blue. As is known to those skilled in the art, the blue color of these bristles gradually fades over time as you use your toothbrush, which serves as an indicator of the degree of wear of the toothbrush. These bristles have a diameter in the range of between about 0.005 and 0.009 inches (0.127-0.2286 mm), and in a preferred embodiment, a diameter of about 0.007 inches (0.1778 mm). The length of these bristles when measured from the surface 30 of the head 14 is approximately 0.350 inches (8.89 mm). The cross-sectional area per each bristle tuft 32 is approximately 0.0045 square meters. inches (0.029 cm 2 ). As shown in FIG. 6, tufts of type 32 bristles have a circular cross section. Eight to twelve tufts of bristles of type 32 are provided for being fixed in the head 14.
The third type of bristle tufts, type 34, is made of individual bristles made of polybutylene terephthalate (PET) containing an abrasive material, such as porcelain clay particles, uniformly distributed over the total mass of polybutylene terephthalate (PBT) by mixing. These bristles have a diameter in the range of between about 0.005 and 0.009 inches (0.127-0.2286 mm), and in a preferred embodiment, a diameter of about 0.007 inches (0.178 mm). The length of these bristles when measured from the surface 30 of the head 14 is approximately 0.440 inches (11.176 mm). The cross-sectional area per each bundle 34 of bristles is approximately 0.0027 square meters. inches (0.0174 cm 2 ). Eight to twelve tufts of type 34 bristles are provided that are fixed to the head 14. As shown in FIG. 6, tufts of type 34 bristles are rectangular in shape with rounded ends.
The fourth type of bristle tufts, type 36, is made of separate bristles made of polybutylene terephthalate (PBT) containing an abrasive material, such as porcelain clay particles, uniformly distributed over the total mass of polybutylene terephthalate (PBT) by mixing. These bristles have a diameter in the range of between about 0.005 and 0.009 inches (0.127-0.2286 mm), and in a preferred embodiment, the diameter is about 0.007 inches (0.1778 mm). The length of these bristles when measured from the surface 30 of the head 14 is approximately 0.440 inches (11.176 mm). The cross-sectional area per each tuft 36 of bristles is approximately 0.0040 square meters. inches (0.0258 cm 2 ). Four to six tufts of type 36 bristles are provided to be secured to the head 14. As shown in FIG. 6, tufts of type 36 are rectangular in shape with rounded ends and are wider in the transverse direction relative to the head than tufts of bristle type 34 .
The fifth and final type of bristle tufts, type 38, is made of separate bristles made of polybutylene terephthalate (PBT) containing an abrasive material, such as porcelain clay particles uniformly distributed over the total mass of polybutylene terephthalate (PBT) by mixing. These bristles have a diameter in the range of between about 0.005 and 0.009 inches (0.127-0.2286 mm), and in a preferred embodiment, a diameter of about 0.006 inches (0.1524 mm). The length of these bristles when measured from the surface 30 of the head 14 is approximately 0.350 inches (8.89 mm). The cross-sectional area per type 38 bristle tuft is approximately 0.0084 square meters. inches (0.0542 cm 2 ). Four to six tufts of type 38 bristles are provided to be fixed to the head 14. As shown in FIG. 6, tufts of type 38 are rectangular in shape with rounded ends and are wider than tufts of type 36 bristles.
Based on the dimensions of the cross-sectional area of the various types of bristle tufts discussed here above, it should be noted that the type 28 bristle tuft has such a cross-sectional area that is more than four times that of any other type of bristle tuft among those mounted on the head 14 Despite the fact that the above description indicates specific materials from which individual bristles are made for each of the considered types of bristle tufts, other materials may also be used. Essentially, any of the bristles attached to the head 14 could be made, for example, of polybutylene terephthalate (PBT) with or without any abrasive material, for example, such as porcelain clay particles, from grade 6 nylon , 12 with or without the introduction of any abrasive material, or from material under the trademark "Indicators" based on nylon with or without the introduction of any abrasive material.
In addition, individual bristles in a particular bristle bundle or in different bristle tufts of the same type can have different lengths, diameters, their cross-sectional shapes, their cross-sectional areas, colors and can be made of different materials.
As best seen in FIGS. 2, 4, 5 and 7, all bristle tufts located on the head 14 are at an angle with respect to the direction D, or with respect to the direction opposite to the direction D, in the preferred embodiment, with an inclination at an angle less than about 81 °, and preferably between about 69 and 81 °, and even more preferably about 75 ° relative to an imaginary straight line 40, which is tangential to the surface 30 of the head 14. If the surface 30 b If it were flat rather than curved, then the line 40 would be coplanar with respect to the surface 30. The two outer rows 42 of the bristle tufts have an inclination of the tufts at an angle in the direction D extending in the opposite direction relative to the handle 12. The inner row 44 of the bristle tufts has the inclination of the beams in a direction opposite to the direction D and extending toward the handle 12, except for the large tuft 28 of bristles, which is inclined in the direction D, extending in the opposite direction relative to the handle 12.
Toothbrush 10 can be made using the following method, which is generally understood by those skilled in the art. Each bundle of bristles is formed by selecting into the bundle the desired number of bristles made of the corresponding material having the desired diameter and length. Then, the beams selected in this way are pushed into the corresponding holes provided in the corresponding part of the mold installed in the injection molding machine. The end of the bristle bundle, which protrudes or will protrude into the mold cavity, is then melted so that the individual bristles entering it are melted at this end, connecting into a single mass or ball located at the end of the bristle bundle. Then, that part of the mold into which the bristle tufts were inserted is connected to the rest of this mold, and together these two parts of the mold form a cavity intended for pressing the main part 16 of the toothbrush therein. In this case, the fused masses at the ends of the bristle tufts are located directly inside the specified cavity.
Then, polypropylene is injected into the cavity and the main part 16 of the toothbrush 10 is formed from it. Next, the polypropylene is cooled, after which at some point this toothbrush made only partially is moved to the second working position of injection molding. Cooled, hardened polypropylene provides reliable fastening of the fused masses located at the ends of the bristle tufts in the body of the toothbrush head 14. At the second working position of the injection pressing, said only partially made toothbrush is placed in a second mold having cavities for pressing therein part 18 for gripping with the thumb of the hand, trademark 24 and part 20 for gripping the brush with the rest of the fingers. Then, the thermoplastic elastomer is injected into this mold, after which the elastomer is cooled, and the finished toothbrush 10 is removed from the mold. After that, the toothbrush is packaged.

Claims (30)

1. Toothbrush (10), containing a handle (12), a head (14) extending from this handle (12), and tufts of bristles (26) fixed in the specified head (14), characterized in that one tuft of bristles ( 28) is fixed in such a place in the head (14) that no other bundle is fixed in the head (14) in a place that is more remote from the handle (12) than the place where the specified one bundle of bristles is fixed in the head (14) ( 28), wherein said one bundle of bristles (28) is inclined at an angle of 81 ° or less to an imaginary line (40), which is tangential or coplanar with the surface of the head (14) through which the specified one bundle of bristles (28) is fixed in the head (14), and the specified one bundle of bristles (28) is inclined from the handle (12) in the direction in which the head (14) moves away from the handle (12), while the second one of the bundles (36, 38) is inclined to the handle, all the bristles of the third one of the bundles (32, 34, 36, 38) are inclined at an acute angle to the imaginary line (40), the second (36, 38) and the third (32, 34, 36, 38) the beams have different cross sections from each other.
2. Toothbrush according to claim 1, characterized in that one tuft of bristles (28) is inclined at an angle between about 69 ° and about 81 ° to the specified imaginary line (40).
3. Toothbrush (10) according to claim 2, characterized in that said one tuft of bristles is inclined at an angle of about 75 ° to said imaginary line.
4. Toothbrush (10) according to any one of claims 1 to 3, characterized in that the second (36, 38) and third (32, 34, 36, 38) tufts have different lengths measured from the surface.
5. Toothbrush (10) according to claim 4, characterized in that the second (36, 38) and third (32, 34, 36, 38) tufts differ by about 2.3 mm in length.
6. Toothbrush (10) according to any one of claims 1 to 5, characterized in that the cross sections differ in shape.
7. Toothbrush (10) according to any one of claims 1 to 6, characterized in that the cross-sections differ in area.
8. Toothbrush (10) according to any one of claims 1 to 7, characterized in that the cross-sectional area of one beam (28) is at least eight times the cross-sectional area of the second beam (36, 38) or any one of the other beams fixed in the head (14).
9. Toothbrush (10) according to any one of claims 1 to 8, characterized in that no other bundle is fixed in the head in a place that is away from the handle (12) as much as the place where one bundle (28) is fixed in the head.
10. Toothbrush (10) according to any one of claims 1 to 9, characterized in that one or more of the bristles has a feature that is different from other bristles, and this feature is the length, diameter, cross-sectional area, color, material or combination of any two or more of the mentioned features.
11. Toothbrush (10) according to any one of claims 1 to 10, characterized in that one beam (28) has a volume of the beam, measured from the surface of the head, between approximately 0.015 and 0.018 cubic inches (0.25 and 0.29 cm 3 ).
12. A toothbrush (10) comprising a handle (12), a head (14) extending from the handle (12), and tufts (26) of bristles fixed to the head (14), characterized in that there are three (32, 34, 36, 38) from the tufts of bristles are inclined at an acute angle to an imaginary line (40), which is tangential or coplanar with the surface of the head (14), through which the three tufts are fixed in the head, and the three tufts are tilted and aligned essentially one at a time and in the same direction, wherein the direction is substantially parallel to the handle (12), the direction is substantially toward or away from the handle ( 12), and the first bundle (34, 36) of three bundles has a length, the second bundle (32, 38) of three bundles adjoins the first bundle (34, 36) and has a length shorter than the length of the first bundle (34, 36 ), the third bundle (32, 38) of the three bundles adjoins the first bundle (34, 36) and has a length shorter than the length of the first bundle (34, 36), the fourth bundle (28) is mounted on the head (14) in place so that no other bundle is fixed on the head (14) in a place which is more remote from the handle (12) than the place where the fourth bundle (28) is mounted on the head (14), while the cross-sectional area of the fourth the beam (28) is at least four times the cross-sectional area of any other beam mounted on the head (14).
13. Toothbrush (10) according to claim 12, characterized in that the fourth bunch (28) is inclined at an angle from about 69 ° to about 81 ° to an imaginary line (40).
14. Toothbrush (10) according to item 12, characterized in that the fourth bunch (28) is inclined at an angle of about 75 ° to an imaginary line (40).
15. Toothbrush (10) according to any one of claims 12-14, characterized in that no other bundle is fixed on the head (14) in a place that is removed from the handle (12) as much as the place where the fourth bundle ( 28) is mounted on the head (14).
16. Toothbrush (10) according to claim 12, characterized in that the fourth beam (28) is inclined at an angle of about 81 ° or less to an imaginary line (40) and is inclined from said handle (12) in that main direction in which the head (14) moves away from the handle (12).
17. Toothbrush (10) according to any one of paragraphs.12-16, characterized in that one or more of the bristles have a characteristic that is different from other bristles, and the sign is the length, diameter, cross-sectional area, cross-sectional shape, color, material , as well as a combination of any two or more of the mentioned features.
18. Toothbrush (10) according to any one of claims 12-17, characterized in that the three beams (32, 34, 36, 38) are inclined at an angle from about 69 ° to about 81 ° to an imaginary line.
19. Toothbrush (10) according to claim 18, characterized in that the three tufts of bristles are inclined at an angle of about 75 ° to an imaginary line.
20. Toothbrush (10) containing a handle (12), a head (14) extending from the handle (12), and tufts (26) of bristles fixed to the head (14), characterized in that there are three tufts (32, 34 , 36, 38) are inclined at an acute angle to an imaginary line (40), which is tangential or coplanar with the surface of the head (14), through which the beams (32, 34, 36, 38) are fixed in the head (14), two of which three beams differ in cross section, three beams are tilted and aligned in essentially the same direction, while the direction is essentially parallel to the handle (12 ), the direction is essentially to or from the handle (12), the first bundle (34, 36) of three bundles has a length, the second bundle (32, 38) of three bundles is adjacent to the first bundle (34, 36) and has a length less than the length of the first beam (34, 36), and the third beam (32, 38) of the three beams is adjacent to the first beam (34, 36) and has a length less than the length of the first beam (34, 36) .
21. Toothbrush (10) according to claim 20, characterized in that two of the three tufts (32, 34, 36, 38) also differ in color.
22. Toothbrush (10) according to claim 20 or 21, characterized in that the tufts (36, 38) are inclined towards the handle.
23. Toothbrush (10) according to claim 20 or 21, characterized in that the tufts (32, 34) are inclined from the handle.
24. Toothbrush (10) according to item 23, characterized in that it further includes a fourth bunch (36, 38), inclined towards the handle (12).
25. Toothbrush (10) according to paragraph 24, characterized in that it further includes a fifth bunch (36, 38), inclined towards the handle (12).
26. Toothbrush (10) according to claim 25, wherein the fourth and fifth tufts (36, 38) have different lengths.
27. Toothbrush (10) according to claim 25 or 26, characterized in that it further includes a sixth tuft (28, 32, 34), inclined from the handle (12).
28. Toothbrush (10) according to item 27, characterized in that it further includes a seventh bundle (28, 32, 34), inclined from the handle (12).
29. Toothbrush (10) according to claim 28, characterized in that the sixth and seventh tufts (28, 32, 34) have different lengths.
30. A toothbrush (10) comprising a handle (12), a head (14) extending from the handle (12), and tufts (26) of bristles mounted in longitudinal rows on the back of the head (14), characterized in that in the first row (42), the beams are tilted in the first direction toward the free end of the head (14), in the second row (44), the beams are tilted in the second direction, opposite the first direction, and an additional tuft of bristles (28) is fixed to the front free end of the head (14) and inclined in the first direction, and the additional beam (28) has a first length, the beams (32, 34, 36, 38) n and the back of the head (14) have either a first or second length, the first length being longer than the second length, with each longitudinal row (42, 44) including tufts (34, 32; 36, 38) of bristles of the first and second length, adjacent beams in the longitudinal row alternately have first and second lengths.
RU99111087/12A 1997-11-12 1998-11-06 Tooth-brush (variants) RU2228129C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US96829397A true 1997-11-12 1997-11-12
US08/968,293 1997-11-12
US09/177,991 1998-10-23
US09/177,991 US6308367B1 (en) 1997-11-12 1998-10-23 Toothbrush

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RU99111087A RU99111087A (en) 2001-03-20
RU2228129C2 true RU2228129C2 (en) 2004-05-10

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EP (2) EP0955837B2 (en)
JP (4) JP4069188B2 (en)
CN (1) CN1120682C (en)
AR (1) AR048240A2 (en)
AT (1) AT233060T (en)
AU (1) AU742959B2 (en)
BR (1) BR9806247A (en)
CA (1) CA2271852C (en)
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MD961Z (en) * 2011-04-13 2016-05-31 Владимир Дмитриевич Артемьев Method for producing inulin and other fructan-containing products from Jerusalem artichoke

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