Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS20060085931 A1
Publication typeApplication
Application numberUS 11/248,087
Publication dateApr 27, 2006
Filing dateOct 12, 2005
Priority dateNov 9, 1995
Also published asCA2236416A1, CA2236416C, CN1120684C, CN1204238A, DE69626696D1, DE69626696T2, EP0918477A1, EP0918477B1, US5987688, US6151745, US8156600, US20020084550, US20040087882, US20050086753, US20070234496, US20090013484, WO1997016995A1
Publication number11248087, 248087, US 2006/0085931 A1, US 2006/085931 A1, US 20060085931 A1, US 20060085931A1, US 2006085931 A1, US 2006085931A1, US-A1-20060085931, US-A1-2006085931, US2006/0085931A1, US2006/085931A1, US20060085931 A1, US20060085931A1, US2006085931 A1, US2006085931A1
InventorsMichael Roberts, Thomas Masterman, Edward Park, Scott Batson, Philip Sweeney, Mingchih Tseng, Stephen Witkus
Original AssigneeThe Gillette Company, A Delaware Corporation
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Gum-massaging oral brush
US 20060085931 A1
Abstract
An oral brush is provided that includes an elongated body, a head portion extending from the body, and a plurality of bristles, formed of particular thermoplastic elastomers, extending from the body. In various embodiments, the thermoplastic elastomer has a Shore A hardness of at least 30; the thermoplastic elastomer is selected from the group consisting of polyetheramides, polyesters, styrene-ethylene-butylene-styrene block copolymers, polyurethanes, polyolefin elastomers, and mixtures thereof; and the thermoplastic elastomer has a flexural modulus of at least 5 MPa.
Images(7)
Previous page
Next page
Claims(8)
1-44. (canceled)
45. An oral brush comprising
an elongated handle;
a head portion, sized for insertion into the human mouth, extending from an end of said handle; and
a brush portion comprising
a) one or more elastomeric element(s) extending from said head portion, said elastomeric element(s) comprising a vulcanized polymer having a Shore A hardness of 90 or less, and
b) a plurality of bristles extending from said head portion comprising a non-elastomeric material.
46. The oral brush of claim 45, wherein the vulcanized polymer is selected from the group consisting of natural rubber, crosslinked polybutadiene, crosslinked polyacrylates, and mixtures thereof.
47. The oral brush of claim 45, wherein the vulcanized polymer includes an oil.
48. The oral brush claim 45, wherein said bristles are a polyamide.
49. The oral brush of claim 45, wherein said non-elastomeric material includes an abrasive.
50. The oral brush claim 45, wherein said bristles have a diameter of from about 5 to about 10 mils.
51. The oral brush of claim 45, wherein the oral brush is an electric brush.
Description
    BACKGROUND OF THE INVENTION
  • [0001]
    This application is a continuation (and claims the benefit of priority under 35 U.S.C. 120) of pending U.S. application Ser. No. 10/991,911, filed Nov. 18, 2004; which is a continuation of pending U.S. application Ser. No. 10/692,916, filed Oct. 24, 2003; which is a continuation of pending U.S. application Ser. No. 10/036,022, filed Dec. 26, 2001; which is a divisional of U.S. application Ser. No. 09/660,151, filed Sep. 13, 2000, now abandoned; which is a continuation of U.S. application Ser. No. 09/351,588, filed Jul. 12, 1999, now U.S. Pat. No. 6,151,745; which is a continuation of U.S. application Ser. No. 08/730,286, filed Nov. 30, 1996, now U.S. Pat. No. 5,987,688; which is a continuation-in-part of Ser. No. 08/554,931, filed Nov. 9, 1995, now abandoned.
  • [0002]
    The invention relates to oral brushes and bristles for use in oral brushes.
  • [0003]
    Most humans suffer from tooth decay and/or gingivitis caused by bacteria in the mouth. As a result, decreasing the amount of plaque in the mouth has long been the target of persons working in the health care field. A common way of minimizing the plaque in the mouth is to brush the teeth regularly.
  • [0004]
    However, the benefits of frequent brushing can be accompanied in some instances by deleterious side effects such as irritation, abrasion and even recession of the gums. These side effects may, in part, result from excessive stiffness and/or sharpness of the toothbrush bristles.
  • [0005]
    Another common way of improving oral health is by massaging the gums to stimulate the gingival tissue. Conventional toothbrushes tend to have limited effectiveness for gum-massaging, and thus often a separate gum-massaging procedure, using a gum-massaging tool, is required to ensure good oral health.
  • [0006]
    Endeavors have been made to reduce gum irritation and/or provide a gum-massaging effect by replacing some or all of the toothbrush bristles with rubber or synthetic rubber pins. See, e.g., U.S. Pat. No. 4,288,883.
  • SUMMARY
  • [0007]
    The invention features improved gum-massaging oral brushes which provide good comfort and gum stimulation while also providing good cleaning of the teeth. The invention also features bristles for use in gum-massaging oral brushes.
  • [0008]
    In one aspect, the invention features an oral brush including an elongated body, a head portion extending from the body, and a brush portion including a plurality of bristles formed of a thermoplastic elastomer extending from the body. The thermoplastic elastomer preferably has a Shore A hardness of at least 30; is selected from the group consisting of polyetheramides, polyesters, styrene-ethylene-butylene-styrene block copolymers, styrene-butadiene-styrene block copolymers, styrene-isoprene-styrene block copolymers, polyurethanes, polyolefin elastomers, and mixtures thereof; and has a flexural modulus of at least 5 MPa.
  • [0009]
    Preferred oral brushes further include a plurality of bristles formed of a non-elastomeric material. In preferred embodiments, this material is selected from nylon, polyamides, polyesters and polybutyleneterephthalate (PBT). The non-elastomeric bristles may include additives to improve their cleaning ability, e.g., abrasives and polishing agents such as clays, silicas, aluminas, calcium carbonate, calcium or magnesium phosphate compounds, apatites, and mixtures thereof.
  • [0010]
    Preferred oral brushes also include a spacer attached to the base of the head portion. The spacer is formed of a thermoplastic elastomer and is integrally joined to the bristles. Preferably the non-elastomeric bristles extend from the head portion through the spacer.
  • [0011]
    In another aspect, the invention features an oral brush including a plurality of bristles formed of a thermoplastic elastomer, and a plurality of bristles formed of a polyphthalamide.
  • [0012]
    In another aspect, the invention features massaging the gums with one of the bristles described previously.
  • [0013]
    An oral brush, as used herein, is any brush that includes a body having a brush portion designed for insertion into the mouth. The brush portion includes a plurality of bristles extending therefrom and being dimensioned to be used to brush tooth surfaces.
  • [0014]
    In another aspect, the invention features an oral brush including multicomponent bristles, preferably comprising a thermoplastic elastomer sheath surrounding a core material comprising a non-elastomeric material or a thermoplastic elastomer having a higher hardness than the thermoplastic elastomer sheath. The invention also features methods of making multi-component bristles, e.g., by coextruding a plurality of polymers. By “multicomponent”, we mean that the bristles have two or more components; by “coextruded”, we mean that at least two of the components are present in the form of substantially separate phases having a distinct interface between them, rather than being intermixed. The bristles are preferably formed by processes which are referred to in the art as “coextrusion”, but the term “multicomponent coextruded”, as used herein, encompasses bristles having the structure described above which are manufactured by other processes.
  • [0015]
    The term “thermoplastic elastomer”, as used herein, refers to non-vulcanized, rubbery polymeric materials which may be processed by conventional plastics processing methods which are well known in the art, such as extrusion or injection molding.
  • [0016]
    In another aspect, the invention features an oral brush including a plurality of bristles formed of a mixture including (a) a non-elastomeric polymer, such as a relatively hard base resin, e.g., Nylon, polypropylene, or polybutylene terephthalate (PBT) and (b) a thermoplastic elastomer such as a polyamide thermoplastic elastomer, a polyester thermoplastic elastomer or other olefinic thermoplastic elastomers. In some embodiments this mixture also contains additives such compatibilizers, abrasives and plasticizers.
  • [0017]
    In yet another aspect of the invention, the invention features an oral brush including a plurality of bristles formed of a mixture including (a) a non-elastomeric polymer and (b) a soft (e.g., having a hardness of less than 90 Shore A) vulcanized rubber-type polymer, such as natural rubber, crosslinked polybutadiene, crosslinked polyacrylates and the like. In some embodiments this mixture also contains additives such as compatibilizers, abrasives and plasticizers.
  • [0018]
    Other features and advantages of the invention will be apparent from the description of the preferred embodiment thereof, and from the claims.
  • BRIEF DESCRIPTION OF DRAWINGS
  • [0019]
    FIG. 1 is a perspective view of a oral brush.
  • [0020]
    FIG. 2 is a schematic top plan view of the head of an oral brush according to one embodiment of the invention.
  • [0021]
    FIG. 3 is a schematic top plan view of the head of an oral brush according to another embodiment of the invention.
  • [0022]
    FIG. 4 is a cross-sectional top view of a co-extruded bristle according to one embodiment of the invention.
  • [0023]
    FIG. 5 is a schematic diagram showing a process according to one embodiment of the invention for forming a coextruded filament.
  • [0024]
    FIGS. 6 and 7 are perspective views of oral brushes having bristles molded
  • DETAILED DESCRIPTION
  • [0025]
    Referring to FIG. 1, a toothbrush 10 includes a plastic body having a handle 12 and a head 14 attached to a bristle portion 16.
  • [0026]
    The body of the toothbrush is formed by conventional methods well-known in the art. The handle is shaped to be grasped by a hand, but alternatively can be shaped to fit into an electric toothbrush. The configuration of the head can vary and may be rectangular, oval, diamond-shaped, or any other shape, with bristles which are trimmed flat, serrated, v-shaped, convex curved, or any other desired topography, as is well known in the art. The shape and size of handle 12 and head 14 can vary and the axes of the handle and head may be on the same or a different plane. It may be desired to provide a larger head than is conventional, in order to provide extra room for the thermoplastic elastomer bristles, while still retaining the standard number of non-elastomeric bristles.
  • [0027]
    Brush portion 16 includes a number of non-elastomeric bristles 18 and a number of elastomeric bristles 20. Preferably, as shown in FIG. 2, the non-elastomeric bristles extend from the central portion of the head 14 and the elastomeric bristles are disposed around the outer perimeter of the head 14, surrounding the non-elastomeric bristles. Another possible arrangement is shown in FIG. 3.
  • [0028]
    The non-elastomeric bristles are formed of tufts of individual filaments attached to the head in manners known to the art. The elastomeric bristles are formed of tufts of one or more filaments of thermoplastic elastomer. If a single filament is used per tuft, the filament preferably has a diameter that is half that of a standard pre-cored tuft hole, e.g., 33 mil for a 66-mil pre-cored hole, so that the filament can be folded and staple tufted into the hole.
  • [0029]
    Alternatively, some or all of the bristles are formed of a mixture of elastomeric and non-elastomeric polymers. The elastomeric material is selected from the group consisting of thermoplastic elastomers and vulcanized rubber-type polymers. In both cases, the ratio of the elastomer to the non-elastomeric material is preferably from 10:90-90:10. Preferred bristle diameters range from 3-100 mil (tapered or untapered), depending on the mixture used and elastomer and non-elastomeric material chosen as would be understood by one skilled in the art.
  • [0030]
    Suitable filaments formed of a blend of elastomeric and non-elastomeric include, but are not limited to the following:
    Processing Drawdown Bend
    Composition Temp Ratio Diameter Recovery
    30% Pebax 2533 250 C. 4:1 8 mil 95%
    70% Zytel 151L
    30% Pebax 2533 250 C. 4:1 7 mil 95%
    70% Zytel 151L
  • [0031]
    Such a mixture can be compounded using standard processing procedures such as a single screw or twin screw extruder or dry blending.
  • [0032]
    Suitable thermoplastic elastomers are those which have sufficient stiffness and hardness for effective gum massage and to resist tearing and/or excessive wear during use, while being sufficiently soft to provide comfort and avoid gum irritation during gum massage. Suitable thermoplastic elastomers include polyetheramides, e.g., PEBAX polymers (ELF Atochem); polyesters, e.g., HYTREL polymers (DuPont); styrene-ethylene-butylene-styrene block copolymers, styrene-ethylene-propylene-styrene block copolymers, styrene-butadiene-styrene block copolymers, and styrene-isoprene-styrene block copolymers, e.g., KRATON rubbers (Shell); polyurethanes, e.g., PELLETHANE polyurethanes (DOW); polyolefin elastomers, e.g., SANTOPRENE elastomers (Advanced Elastomer Systems); and mixtures thereof. Poly(ether-amide) block copolymers having the general formula
    where PA=polyamide segment and PE=polyether segment, commercially available under the tradename PEBAX polymers, are particularly preferred. Of these, a copolymer of nylon 12 and poly(tetramethylene glycol) commercially available under the tradename PEBAX MX-1205 polymer is particularly preferred. Another preferred thermoplastic elastomer comprises a blend of a polyamide sold under the tradename PEBAX 2533 and a block copolymer sold under the tradename KRATON G-6713, preferably containing about 90% of the polyamide and 10% of the block copolymer. This blend provides good softness without tackiness or weakness.
  • [0033]
    If a relatively soft thermoplastic elastomer is used, a relatively large diameter filament may be needed to provide sufficient durability and stiffness. Such large diameter filaments preferably have a diameter less than about 200 mil, more preferably 30 to 100 mil. If a harder, stiffer thermoplastic elastomer is used, a smaller diameter filament can be used. Generally, suitable thermoplastic elastomers will have a Shore A hardness of at least 30, preferably from about 35 to 55 and a flexural modulus of from about 5 to 100 MPa.
  • [0034]
    Suitable vulcanized rubber type polymers include, but are not limited to, natural rubber, crosslinked polybutadiene, cross-linked polyacrylates, and blends thereof.
  • [0035]
    Non-elastomeric bristles 18 may be formed of any material suitable for use in toothbrush bristles. Such materials can also be used as the non-elastomeric component of elastomeric non-elastomeric blend bristles. Preferred materials include nylon 612 and other polyamides. A preferred grade of nylon is available from Whiting Co., Burlington, Vt. under the tradename WYTEX. Preferred polyamides include polythalamides sold by Amoco Performance Products, Inc., under the tradename AMODEL resins. Such polyphthalamides are described in U.S. Pat. Nos. 4,603,166, 4,476,280, and 4,617,342, the disclosures of which are incorporated herein by reference. A particularly preferred polyphthalamide is a crystalline polyphthalamide formed by polymerization of terphthalic acid, isophthalic acid and adipic acid with hexamethylene diamine. Other suitable filaments include acetal resins, polyesters, fluoropolymers, polyacrylates, polysulfones and combinations thereof. Preferred non-elastomeric filaments have a diameter of from about 3 to 10 mil.
  • [0036]
    In an alternate embodiment, the elastomeric bristles include a sheath 30 of thermoplastic elastomer coextruded around a core 32 of a different material, as shown in cross-section in FIG. 4. The sheath to core volume ratio may be from 95:5 to 5:95.
  • [0037]
    Preferably, the core material is a stiff polymer, allowing the outer sheath to be softer and/or allowing the bristles to have smaller diameters than would otherwise be possible (with a thermoplastic elastomer alone) due to the constraints of bristle durability and strength. If desired the coextruded filaments can have standard bristle diameters, e.g., 5-8 mil. Preferred filament diameters range from 5 to 65 mil, depending on the application in which the bristle is to be used. Suitable core materials include but are not limited to polyamides, e.g., nylons, and polyesters, e.g., PBT.
  • [0038]
    Preferred sheath materials include the thermoplastic elastomers discussed above. Softer grades of these elastomers can be used when a stiff core is provided, e.g., the sheath material may have a hardness as low as 3 Shore A.
  • [0039]
    A suitable method for forming the coextruded filaments is shown in FIG. 5. As shown, the two components are extruded through first and second extruders to form a filament, after which the filament is passed through a water bath, and through a series of godets. The filament is placed under light tension as it travels between two drawing godets which are rotating at different speeds. The tension applied to the filament is expressed as the “drawdown ratio”, which is the speed differential between the two drawing godets. Preferred drawdown ratios are from about 1.0 to 7.0. The filament then passes through a relaxing godet and is collected on a take-up winder. Suitable coextruded filaments include, but are not limited to, the following:
    Composition Volume Drawdown
    (Sheath/Core) Ratio Rat. Diameter
    PEBAX MX1205/Nylon 612 10:90 4:1  8 mil
    PEBAX MX1205/Nylon 612 50:50 1:1 or 2:1 55 mil
    Blend of 90% PEBAX 2533 10:90 4:1  8 mil
    and 10% DYNAFLEX or
    G6712/Nylon 612 50:50 1:1 or 2:1 55 mil
    HYTREL 3078/Nylon 612 10:90 4:1  8 mil
    or
    50:50 1:1 or 2:1 55 mil
  • [0040]
    In an alternate embodiment, head portion 14 includes bristles 20 integrally joined to spacer 40, which is attached to the base of head portion 14, as shown in FIG. 6. Spacer 40 provides good adhesion of bristles 20 to head portion 14 and provides support to bristles 18. The additional support provided by spacer 40 stiffens bristles 18 by decreasing the effective length of the bristles, which allows the incorporation of bristles having smaller diameters that more easily penetrate the interstitial regions of the mouth into the toothbrush. Bristles 18 extend from head portion 14 through spacer 40. Spacer 40 is formed of the elastomeric materials listed above and can be formed of the same elastomeric material as used to form the elastomeric bristles 20. Spacer 40 and elastomeric bristles 20 at the perimeter of head portion 14 can be molded as one unit. If the bristles 20 and spacer 40 are molded as one unit, their diameter is preferably from about 4 mil to about 200 mil. Elastomeric bristles 20 can extend at angles from spacer 40 and can optionally extend from the head portion to a radiused terminal end 71.
  • [0041]
    Alternatively, spacer 40 can be recessed into head 14 such that the bristle receiving surface 46 of spacer 40 is substantially contiguous with surface 44 of head portion 14, as shown in FIG. 7.
  • [0042]
    Other embodiments are within the claims. For example, if desired, all of the bristles may be formed of thermoplastic elastomer material. The bristles may be formed of a blend of thermoplastic elastomers. Moreover, the oral brush may include elastomeric bristles having different relative compositions, e.g., some of the bristles are formed of a first thermoplastic elastomer or blend of elastomers and other bristles are formed of a different thermoplastic elastomer or blend. Further, the elastomeric bristles may include other polymers, e.g., plasticizers such as oils, waxes or resins to increase softness, or additives, e.g., fillers, antioxidants, UV stabilizers, and abrasives or polishing agents. Suitable polishing agents include particles of plastic, particles of walnut shells, particles of hardwood, particles of corn cob, particles of rubber, calcium carbonate, aragonite clay, orthorhombic clays, calcite clay, rhombohedral clays, kaolin clay, bentonite clay, dicalcium phosphate, dicalcium phosphate anhydrous, dicalcium phosphate dihydrate, tricalcium phosphate, calcium pyrophosphate, insoluble sodium metaphosphate, precipitated calcium carbonate, magnesium orthophosphate, trimagnesium phosphate, hydroxyapatites, synthetic apatites, alumina, hydrated alumina, hydrated silica xerogel, metal aluminosilicate complexes, sodium aluminum silicates, zirconium silicate, silicon dioxide, and combinations thereof.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US301644 *Jul 8, 1884 thompson
US1022920 *Oct 12, 1911Apr 9, 1912Rufus L AndersonBrush.
US1128139 *Oct 31, 1913Feb 9, 1915John P HoffmanTooth-brush.
US1191556 *Aug 31, 1915Jul 18, 1916Philip W BlakeTooth-brush.
US1268544 *Apr 12, 1918Jun 4, 1918Lorwin N CatesTooth-brush.
US1494448 *Oct 5, 1922May 20, 1924Sookne JosephToothbrush
US1526267 *Sep 3, 1924Feb 10, 1925Dessau Morland MichollRubber article
US1704564 *Mar 16, 1928Mar 5, 1929Friedland Solomon BToothbrush
US1764130 *May 28, 1928Jun 17, 1930Vardeman Robert WFountain toothbrush
US1796893 *Apr 22, 1929Mar 17, 1931Charles A McveighToothbrush
US1797946 *Jan 8, 1930Mar 24, 1931Emil EichelToothbrush
US1863389 *Feb 17, 1930Jun 14, 1932Standard Oil CoWicking machine
US1924152 *Nov 2, 1931Aug 29, 1933David M ConeyToothbrush
US1963389 *May 8, 1931Jun 19, 1934Vardeman Lab Inc DrToothbrush
US1993662 *Sep 18, 1931Mar 5, 1935Harry A GreenAttachment for toothbrushes
US2042239 *Jan 18, 1934May 26, 1936Andrew J PlandingTooth brush
US2088839 *May 27, 1936Aug 3, 1937David M ConeyTooth brush
US2117174 *Nov 13, 1936May 10, 1938James M JonesTooth brush
US2129082 *Sep 13, 1935Sep 6, 1938Ralph W ByrerGum massaging appliance
US2154846 *Apr 8, 1938Apr 18, 1939Heymann George HMassage device
US2155473 *Sep 26, 1936Apr 25, 1939Daniel R ColemanDental brush
US2176309 *Jun 9, 1937Oct 17, 1939Lomo Gum Massager CompanyGum massager
US2189175 *May 20, 1938Feb 6, 1940Jackson Charles Jose FrederickDental massaging, cleaning, and medicating device
US2206726 *Mar 18, 1938Jul 2, 1940Lasater Robert LRubber toothbrush
US2219753 *May 21, 1938Oct 29, 1940Walter C MaylandToothbrush
US2244699 *Jan 3, 1939Jun 10, 1941Theodore A HoseyCleaning device for teeth
US2279355 *Mar 28, 1940Apr 14, 1942Harry L WilenskyTooth cleaning and gum massaging brush
US2312828 *Nov 30, 1940Mar 2, 1943Emil G AdamssonToothbrush
US2326632 *Oct 3, 1941Aug 10, 1943Benjamin FriedmanInterchangeable toothbrush
US2328998 *Dec 27, 1939Sep 7, 1943Radford George SAttrition product and method for making same
US2702914 *Nov 4, 1950Mar 1, 1955Irene T KittleToothbrush
US3007441 *May 18, 1959Nov 7, 1961Bird A EyerTooth brush for use on domestic animals
US3016554 *May 12, 1958Jan 16, 1962Osborn Mfg CoBrush material and brush
US3050072 *Aug 28, 1959Aug 21, 1962Diener JackTooth cleaning device
US3103027 *Nov 30, 1960Sep 10, 1963Marjorie A BirchCombined tooth brush and gum massager
US3128487 *Feb 19, 1962Apr 14, 1964Valden CompanyComposite brush
US3230562 *Jul 19, 1963Jan 25, 1966Marjorie A BirchTooth brush and gum massager
US3258805 *Nov 4, 1964Jul 5, 1966Rossnan MichaelTooth brush
US3295156 *Apr 14, 1965Jan 3, 1967Colgate Palmolive CoToothbrush
US3302230 *Oct 20, 1965Feb 7, 1967Poppelmann AkeToothbrush
US3316576 *Aug 19, 1965May 2, 1967Scovill Manufacturing CoElectric toothbrush
US3327339 *Mar 15, 1965Jun 27, 1967Jerome H LemelsonComposite filaments
US3403070 *Jan 31, 1964Sep 24, 1968Polymers IncUnoriented polyolefin filament with polyurethane foam core
US3553759 *Sep 24, 1968Jan 12, 1971Kramer Charles MToothbrush
US3613143 *Nov 12, 1970Oct 19, 1971Indiana University FoundationBrush with abrasive-impregnated bristles
US4033008 *Apr 5, 1976Jul 5, 1977Colgate-Palmolive CompanyToothbrush
US4081877 *Sep 23, 1976Apr 4, 1978Ben VitaleGum massaging implement
US4263691 *Mar 7, 1979Apr 28, 1981Seree PakarnsereeBrush
US4277862 *Nov 28, 1979Jul 14, 1981Alexander E. VowlesToothbrush
US4288883 *Sep 24, 1979Sep 15, 1981Josef DolinskyCombined tooth brush and gum massaging
US4391951 *Jan 4, 1982Jul 5, 1983The Polymer CorporationNylon 6 with improved wear life
US4403623 *Nov 16, 1981Sep 13, 1983Colgate-Palmolive CompanyCombined toothbrush and gum massage device
US4472853 *Apr 21, 1982Sep 25, 1984Samuel RauchToothbrush
US4476280 *Feb 16, 1983Oct 9, 1984Standard Oil CompanyPolyamide compositions from mixtures of trimethylhexamethylene diamine, hexamethylene diamine and diacids
US4525531 *Apr 26, 1983Jun 25, 1985Raychem CorporationPolymeric compositions suitable for use in the medical field and containing a polyolefin, a polysiloxane and an elastomer
US4603166 *Feb 8, 1985Jul 29, 1986Amoco CorporationCrystalline polyamide composition from dicarboxylic acid mixture and diamine
US4616064 *Jul 23, 1984Oct 7, 1986Raychem CorporationPolymeric compositions suitable for use in the medical field and comprising a thermoplastic olefin, a siloxane polymer, and an elastomer
US4617342 *May 16, 1985Oct 14, 1986Amoco CorporationCrystalline copolyamide from terephthalic acid, isophthalic acid and C.sub.6
US4617694 *Sep 21, 1984Oct 21, 1986Team, Inc.Finger-mounted device for cleaning teeth
US4672706 *Dec 27, 1985Jun 16, 1987Stratford LaboratoriesToothbrush
US4802255 *Aug 10, 1987Feb 7, 1989Gillette Canada Inc.Novel brush filaments
US4833194 *Nov 13, 1987May 23, 1989R.J.F. International CorporationElastomeric thermoplastic compositions
US4852202 *Jul 21, 1988Aug 1, 1989Ledwitz Kenenth WToothbrush with angled bristles
US4894880 *Feb 3, 1989Jan 23, 1990Aznavoorian Martin PTooth brush
US5021475 *Dec 12, 1988Jun 4, 1991University Of AkronComposite thermoplastic elastomer blend and process for preparing the same
US5034450 *Feb 24, 1989Jul 23, 1991Basf AktiengesellschaftThermoplastic molding materials based on polyamides and polyester elastomers
US5040260 *Mar 16, 1989Aug 20, 1991Michaels George GTooth cleaning and polishing device
US5114214 *Dec 13, 1988May 19, 1992Rolf BarmanProcess for producing tooth brushes and blanks for use for same
US5137039 *Mar 4, 1991Aug 11, 1992Focus Development Corporation, Inc.Tooth cleaning device
US5291878 *Jul 14, 1992Mar 8, 1994Steve LombardoBaby teething gum massager
US5313909 *Nov 5, 1992May 24, 1994Gillette Canada Inc.Brush filaments
US5325560 *Jan 8, 1993Jul 5, 1994Pavone Bernadino JOrthodontic toothbrush
US5334646 *Oct 6, 1992Aug 2, 1994Applied Elastomerics, Inc.Thermoplastic elastomer gelatinous articles
US5535474 *Mar 23, 1995Jul 16, 1996Salazar; AlfredBrush for cleaning and polishing teeth while stimulating gums
US5604951 *Dec 30, 1994Feb 25, 1997Shipp; Anthony D.Prophy toothbrush
US5628082 *Mar 22, 1995May 13, 1997Colgate-Palmolive CompanyToothbrush with improved efficacy
US5723543 *Sep 26, 1996Mar 3, 1998Shell Oil CompanyBlock copolymers with improved overmolding adhesion
US5735011 *Nov 19, 1996Apr 7, 1998Asher; Randall S.Plaque removing toothbrush
US5970564 *Sep 23, 1997Oct 26, 1999Chesebrough-Pond's Usa Co., Division Of Conopco, Inc.Brush having an elastomeric bridge
US6067684 *Jun 17, 1997May 30, 2000Young-Cheol KweonToothbrush
US6463618 *Jan 21, 1999Oct 15, 2002Sanofi-SynthelaboToothbrush comprising improved means for fixing friction elements
US6513182 *Sep 18, 2000Feb 4, 2003Unilever Home & Personal Care Usa, Division Of Conopco, Inc.Toothbrush
US6571417 *Jun 5, 2000Jun 3, 2003James Albert Gavney, Jr.Dentition cleaning device and system
US6859969 *Jun 3, 2003Mar 1, 2005James A. Gavney, Jr.Multi-directional wiping elements and device using the same
US20030033680 *Aug 8, 2002Feb 20, 2003Unilever Home & Personal Care Usa, Division Of Conopco, Inc.Electric toothbrush
US20030033682 *Aug 8, 2002Feb 20, 2003Unilever Home & Personal Care Usa, Division Of Conopco, Inc.Toothbrush
US20030077107 *Oct 18, 2001Apr 24, 2003Youti KuoToothbrush for massaging and protecting gums
US20030140440 *Mar 5, 2003Jul 31, 2003Gavney James A.Dentition cleaning device and system
US20030196283 *Apr 23, 2002Oct 23, 2003Eyal EliavPowered toothbrush
US20040010869 *Jul 17, 2002Jan 22, 2004Fattori Joseph EdwardToothbrush with movable head sections for enhanced oral care
US20040025275 *Jun 20, 2003Feb 12, 2004Robert MoskovichToothbrush
US20040060132 *Sep 27, 2002Apr 1, 2004Gatzemeyer John J.Brush section for a powered toothbrush
US20040060133 *Sep 27, 2002Apr 1, 2004Eyal EliavToothbrush with linear and rotary fields
US20040060137 *Sep 27, 2002Apr 1, 2004Eyal EliavToothbrush with sectorial motion
US20040168271 *Feb 27, 2003Sep 2, 2004Mcdougall GregoryToothbrush
US20050015901 *Aug 19, 2004Jan 27, 2005Gavney James A.Oral-care device and system
USD345054 *May 13, 1992Mar 15, 1994Lisco, Inc.Infant massager toothbrush
USD350851 *May 13, 1992Sep 27, 1994Lisco, Inc.Infant massager toothbrush
USRE26688 *Jun 17, 1968Oct 14, 1969 Lemelson composite filaments
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7707676Jun 30, 2006May 4, 2010The Procter & Gamble CompanyToothbrush
US8060970Mar 11, 2010Nov 22, 2011The Procter & Gamble CompanyToothbrush
US8156600Sep 9, 2008Apr 17, 2012The Gillette CompanyGum massaging oral brush
US8332985Nov 18, 2011Dec 18, 2012The Procter & Gamble CompanyToothbrush
US8584299Jul 25, 2007Nov 19, 2013The Procter & Gamble CompanyElectric toothbrushes
US8955186Oct 15, 2013Feb 17, 2015The Procter & Gamble CompanyElectric toothbrushes
US9750334Jan 3, 2012Sep 5, 2017Trisa Holding AgToothbrush with injection-moulded bristles and method and apparatus for producing the same
US20060242778 *Jun 30, 2006Nov 2, 2006Solanki Sanjay AToothbrush
US20080282656 *May 16, 2008Nov 20, 2008Sage Environmental Consulting, Inc.Rotating filament separator
US20090013484 *Sep 9, 2008Jan 15, 2009Michael RobertsGum Massaging Oral Brush
US20100162506 *Mar 11, 2010Jul 1, 2010Sanjay Amratlal SolankiToothbrush
USD645252 *Aug 15, 2008Sep 20, 2011Mcneil-Ppc, Inc.Toothbrush
USD657566Mar 11, 2011Apr 17, 2012Mcneil-Ppc, Inc.Toothbrush
USD680747Jan 27, 2011Apr 30, 2013Dr. Fresh, LlcToothbrush feature
USD710615Jul 16, 2012Aug 12, 2014Dr. Fresh, LlcToothbrush handle
USD719356Jul 18, 2012Dec 16, 2014Dr. Fresh, LlcToothbrush handle
USD720541Mar 25, 2011Jan 6, 2015Dr. Fresh, LlcToothbrush
USD766581Dec 19, 2013Sep 20, 2016Colgate-Palmolive CompanyElectric toothbrush handle
USD769626Dec 19, 2013Oct 25, 2016Colgate-Palmolive CompanyRefill head for electric toothbrush
USD776435Dec 19, 2013Jan 17, 2017Colgate-Palmolive CompanyHead portion of a toothbrush
USD790860Nov 25, 2015Jul 4, 2017Colgate-Palmolive CompanyElectric toothbrush brush head
USD794333Nov 25, 2015Aug 15, 2017Colgate-Palmolive CompanyElectric toothbrush brush head
Classifications
U.S. Classification15/110, 15/167.1
International ClassificationA46D1/00, A46B9/06, A46B3/16, A46B15/00, A46B9/04
Cooperative ClassificationY10S15/06, A46B9/06, A46D1/00, A46B15/0002, A46D1/023, A46B2200/1026, A46B15/0075, A46B2200/1066, A46B15/0032, B29L2031/425, A46D1/0207, A46B3/16
European ClassificationA46D1/02D, A46B3/16, A46B15/00B, A46D1/02A, A46B15/00C8, A46B15/00B3H, A46B9/06, A46D1/00
Legal Events
DateCodeEventDescription
Feb 7, 2006ASAssignment
Owner name: GILLETTE CANADA COMPANY, CANADA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ROBERTS, MICHAEL R.;MASTERMAN, THOMAS CRAIG;PARK, EDWARDH.;AND OTHERS;REEL/FRAME:017241/0230;SIGNING DATES FROM 20011130 TO 20011212