GB2439453A - Electric toothbrush with skewed neck - Google Patents

Electric toothbrush with skewed neck Download PDF

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Publication number
GB2439453A
GB2439453A GB0711985A GB0711985A GB2439453A GB 2439453 A GB2439453 A GB 2439453A GB 0711985 A GB0711985 A GB 0711985A GB 0711985 A GB0711985 A GB 0711985A GB 2439453 A GB2439453 A GB 2439453A
Authority
GB
United Kingdom
Prior art keywords
axis
block
driven member
neck
brush
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0711985A
Other versions
GB0711985D0 (en
Inventor
Thomas Hai Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wong s Springs Ind Ltd
Original Assignee
Wong s Springs Ind Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wong s Springs Ind Ltd filed Critical Wong s Springs Ind Ltd
Publication of GB0711985D0 publication Critical patent/GB0711985D0/en
Publication of GB2439453A publication Critical patent/GB2439453A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/349Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor with multiple brush bodies
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B13/00Brushes with driven brush bodies or carriers
    • A46B13/02Brushes with driven brush bodies or carriers power-driven carriers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/222Brush body details, e.g. the shape thereof or connection to handle
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
    • A61C17/3436Rotation around the axis perpendicular to the plane defined by the bristle holder
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
    • A61C17/3454Translation along the axis perpendicular of the axis of toothbrush handle and in the plane defined by the bristle holder

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)

Abstract

An elongate neck 4 of the toothbrush 1 extends askew to an elongate handle 2 which encloses a rotary motor 10. At the end of the neck is a head 12 to which brush blocks 13, 14, 15 are mounted for movement relative thereto. The transmission includes a driving member 23 and driven member 30 for transmitting torque from the motor, the driving member rotating about a driving member axis, the driven member rotating about a driven member axis. A crankshaft 36 mounted to the head converts rotation of the driven member to movement of the brush blocks, the driven member axis is skewed or offset relative to the driving member axis, and the driving member and driven member are connected by a helical spring flexible coupling 33. One brush block 13 rotates in an oscillating manner and pair of brush blocks 14, 15 oscillate in a linear manner 180 degrees out of phase. The rotary motor is connected via a gear box 11 for increasing torque and reducing speed of rotation. The flexible coupling is able to transmit the torque while accommodating the skew and offset.

Description

<p>ELECTRIC TOOTHBRUSH WITH SKEWED NECK</p>
<p>Backgmund of th lnvntinn The present invention relates to electric toothbrushes having an oscillating brush block with an elongate handle and neck, the neck being skewed relative to the handle. More particularly, the invention relates to electric toothbrushes wherein the transmission includes two rotating members with skewed axes of rotation to accommodate the skew between the handle and neck.</p>
<p>Some known electric toothbrushes have a brush block driven to oscillate by a rotating drive shaft. Typically the drive shaft is coaxial with a motor and gearbox and is elongated to extend through the neck of the toothbrush or replaceable brushing attachment. The handle is elongate, encloses the motor and gearbox, and the neck extends parallel to the handle. The transmission may have an eccentric that fits into a slot formed in the brush block to cause the oscillation. It would be advantageous however, for ergonomic reasons, that the neck be skewed relative to the handle, and doing so creates difficulties with a transmission of this type due to the angle through which the torque must be transmitted. While a bevel gear drive can be used to connect two members when their axes of rotation are skewed, this arrangement is relatively costly to manufacture and so is particularly disadvantageous when this part of the transmission is mounted in a replaceable brushing attachment.</p>
<p>It is an object of the present invention to provide an improved electric toothbrush of the type having an elongate handle and neck skewed relative to one another, the handle and neck enclosing a transmission connecting a rotary motor to an oscillating brush block wherein the transmission includes two rotating members with skewed or offset axes of rotation to transmit torque between the skewed handle and neck.</p>
<p>It is a further object of the present invention to provide an improved replaceable brushing attachment having an elongate neck adapted to extend askew to a handle to which it may be releasably connected.</p>
<p>Disclosure of the Invention</p>
<p>According to one aspect of the invention there is provided an electric toothbrush comprising: an elongate handle enclosing a rotary motor; an elongate neck extending askew to the handle and having a head at a distal end thereof; at least one brush block mounted to the head for movement relative thereto; a transmission including a driving member connected to a driven member for transmitting torque from the motor, the driving member rotating about a driving member axis, the driven member rotating about a driven member axis; a conversion mechanism mounted to the head and adapted for converting rotation of the driven member to movement of the brush block, wherein the driven member axis is skewed or offset relative to the driving member axis, and the driving member and driven member are connected by a flexible coupling.</p>
<p>Preferably the flexible coupling comprises a helical spring.</p>
<p>The helical spring flexible coupling is able to transmit the torque while accommodating skew (i.e. angular misalignment) and/or offset (i.e. parallel misalignment) between the drive and driving member axes, and thus allows a toothbrush of this type to be manufactured more cost effectively. The coupling may possibly also accommodate a degree of end float or axial misalignment between the driving and driven members.</p>
<p>The neck is releasably attachable to the handle, having means at a proximal end thereof for fastening to the handle. Preferably the fastening means is a bayonet coupling, allowing the neck to be fastened by a push-turn action.</p>
<p>Preferably the driving member is mounted at the proximal end and the driven member mounted in the head, the helical spring flexible coupling being elongated to extend within the neck between the driving and driven members.</p>
<p>The helical spring flexible coupling preferably has a substantially cylindrical body with outwardly tapered frusto-conical ends adapted to receive cooperating tapered portions of the driving and driven members in a push fit.</p>
<p>The transmission preferably further includes a gearbox for increasing the torque applied to the driving member and reducing its speed of rotation, the axes of the motor, gearbox and driving member being coaxial with a central longitudinal axis of the handle.</p>
<p>In the preferred embodiment three brush blocks are mounted to the head for separate oscillatory movement relative thereto, the conversion mechanism comprising a crankshaft, the brush blocks including a pair of sliding brush blocks mounted for linear sliding movement relative to the head and a rotary brush block mounted to rotate relative to the head.</p>
<p>The crankshaft is preferably connected to the driven member with which it is connected coaxially, each sliding brush block being mounted for sliding movement substantially perpendicular to the driven member axis, each rotary brush block being mounted for rotation about a respective rotary block axis substantially perpendicular to the sliding block axis, the crankshaft having an eccentric throw for engaging each brush block.</p>
<p>Each sliding block throw is received in an aperture in the sliding block which extends substantially parallel to the crankshaft axis, and each rotary block throw is received in a slot in the rotary block which extends substantially parallel to its respective rotary block axis.</p>
<p>In another aspect the invention provides a replaceable brushing attachment comprising: an elongate hollow neck having a proximal end with means for releasably fastening to a handle enclosing a rotary motor, the neck further having a head on a distal end thereof; at least one brush mounted to the head for movement relative thereto; a transmission enclosed substantially within the neck, the transmission including a driving member joined by a connector to a driven member for transmitting torque from the motor, the driving member rotating about a driving member axis, the driven member rotating about a driven member axis; a conversion mechanism mounted to the head and adapted for converting rotation of the driven member to movement of the brush, wherein the driven member axis is skewed or offset relative to the driving member axis, and the connector comprises a flexible coupling.</p>
<p>Brief Description of the Drawings</p>
<p>Preferred forms of the present invention will now be described by way of example with reference to the accompanying drawings, wherein: Figure 1 is a plan view of a toothbrush according to the invention, Figure 2 is transverse cross-section (along line AA) of the toothbrush of Fig. 1, Figure 3 is a plan view of the neck or replaceable brushing attachment of the toothbrush of Fig. I shown separated from the handle, Figure 4 is transverse cross-section (along line AA) of the neck or replaceable brushing attachment of Fig. 3, Figure 5 is cross-section (along line CC) of Fig. 4, Figure 6 is transverse cross-section (along line DD) of Fig. 4, Figure 7 is transverse cross-section (along line EE) of Fig. 4, Figure 8 is transverse cross-section (along line FF) of Fig. 4, and Figure 9 is transverse cross-section of the handle of the toothbrush of Fig. 1 shown separated from the neck or replaceable brushing attachment, and Figure 10 is transverse cross-section (along line BB) of Fig.9.</p>
<p>Description of the Preferred Embodiments</p>
<p>Refening to Figs 1 and 2, the electric toothbrush 1 includes a handle 2 having a longitudinal axis 3 and an elongate neck 4. The handle 2 includes hollow casing part 7a at one end of which is fixed casing part Tb and to which the neck 4 is fixed at the opposing tapered end 8. Enclosed in the handle 2 are two batteries 9, rotary motor and gearbox 11, the axes of both the motor 10 and gearbox 11 being coaxial with a central longitudinal axis 3. At a distal end 5 of the neck 4 is a head 12 to which brush blocks 13, 14 and 15 are mounted. The brush blocks 13, 14 and 15 have bristles 18, the ends of which define a tooth-contacting plane (indicated generally by the dashed line 19). The neck 4 is skewed relative to the handle, the longitudinal axis of the neck being curved, relative to the axis 3, in a plane substantially perpendicular to the tooth- contacting plane 19, smoothly curving between the proximal end 6 and the distal end 5 through an angle 17 of 20 As best seen from Figs 3 and 4, the neck 4 is detachable from the handle to provide a replaceable brushing attachment. The means for fastening the handle 2 and neck 4 is a bayonet coupling. At the proximal end 6 is a cylindrical portion 20 in which two L-shaped slots are formed, each having an axial portion 21 and circumferential portion 22 for cooperating with a nub 43, 44 provided on the handle 2 (as described below). At the end of each circumferential portion 22 is a radially extending protrusion 39.</p>
<p>Received in a journal 23 mounted inside the proximal end 6 is a driving member 23 which rotates about a driving member axis 25, which is coaxial with the central longitudinal axis 3 when the handle and neck are assembled. The inner end 27 of the driving member 23 is tapered and the opposing end is attached to a first part 28 of a connector, the first part having an outer end 29 which is cross-shaped in transverse section.</p>
<p>The driven member 30 is fixed inside the head 12 and rotates about a driven member axis 32 both skewed and offset relative to the driving member axis 25.</p>
<p>The helical spring flexible coupling 33 is elongated to extend within the neck 4 to provide a torsional coupling between the driving and driven members 24, 30. The flexible coupling 33 is relatively stiff torsionally, being closely wound with adjacent coils abutting. The helical spring flexible coupling 33 has a cylindrical body with frusto-conical ends 34, 35 opening outwardly to receive the tapered ends 27, 30 of the driving and driven members in a push fit.</p>
<p>The conversion mechanism for converting rotation of the driven member 30 to movement of the brush blocks 13, 14, 15 includes a crankshaft 36 fixed to the driven member 30. The crankshaft 36 is mounted by coaxial journals 31, 37 and 38 spaced at intermediate positions along its length to rotate about the driven member axis 32.</p>
<p>The axis 32 of the driven member and crankshaft 36 is inclined at an angle 50 of approximately 10 relative to the central longitudinal axis of the flexible coupling 33.</p>
<p>Referring to Figs 5-8, the rotating brush block 13 is mounted to rotate about an axis perpendicular to the crankshaft axis 32. A rotary block eccentric throw 51 formed on the end of crankshaft 36 is received in a slot 52 parallel to axis 50 to oscillate the block 13.</p>
<p>Both the sliding brush blocks 14, 15 are received in the head to reciprocate transversely in direction 55. The throw 53 nearest the driven member 28 and the throw 54 are both circular in cross-section and received in an aperture 56 which extends perpendicular to the crankshaft axis 32 and to direction 55. A throw 54 for driving the sliding block 14 is 180 degrees out of phase with the throw 53 for driving the block 15. oscillating the blocks in opposing directions.</p>
<p>At the end of the handle 2 is a recess with cylindrical walls 45 for receiving the end portion 20. Opposing flubs 43, 44 project inwardly from the walls 45. In use, when the handle is grasped with the user's thumb projecting toward the head 12 and resting over the switches 41, 42 for controlling the motor 10, then the neck 4 is skewed for best ergonomic positioning. To ensure the neck 4 cannot be angularly misaligned when fixed to the handle 2, the nub 43 is longer circumferentially than the nub 44, each being received in an axial portion 21 which is correspondingly wider.</p>
<p>The nubs 43, 44 ride over the respective protrusions 39 which thereby provide a detent action, holding the head in position.</p>
<p>At the inner end of the recess is a second part 46 of a connector, for cooperating with the first part 28 having an outer end 47 having a cross-shaped recess to receive the end 29. The second part 46 is fixed in a bearing 48 to rotate with the gearbox output shaft 49 with which it is coaxially mounted, together with the motor 10.</p>
<p>Aspects of the present invention have been described by way of example only and it should be appreciated that modifications and additions may be made thereto without departing from the scope thereof.</p>

Claims (1)

  1. <p>CLAIMS: 1. An electric toothbrush comprising: an elongate handle
    enclosing a rotary motor; an elongate neck extending askew to the handle and having a head at a distal end thereof; at least one brush block mounted to the head for movement relative thereto; a transmission including a driving member connected to a driven member for transmitting torque from the motor, the driving member rotating about a driving member axis, the driven member rotating about a driven member axis; a conversion mechanism mounted to the head and adapted for converting rotation of the driven member to movement of the brush block, wherein the driven member axis is skewed or offset relative to the driving member axis, and the driving member and driven member are connected by a flexible coupling.</p>
    <p>2. The toothbrush of claim I wherein the flexible coupling comprises a helical spring.</p>
    <p>3. The toothbrush of claim 1 or claim 2 wherein fastening means at a proximal end of the neck are provided for releasably fastening to the handle. -10.</p>
    <p>4. The toothbrush of claim 3 wherein the fastening means is a bayonet coupling, allowing the neck to be fastened by a push-turn action.</p>
    <p>5. The toothbrush of any one of claims 2-4 wherein the driving member is mounted at the proximal end and the driven member mounted in the head, the helical spring flexible coupling being elongated to extend within the neck between the driving and driven members.</p>
    <p>6. The toothbrush of any one of claims 2-5 wherein the helical spring flexible coupling has a substantially cylindrical body with outwardly tapered frusto-conical ends adapted to receive cooperating tapered portions of the driving and driven members in a push fit.</p>
    <p>7. The toothbrush of any one of the preceding claims wherein the transmission further includes a gearbox for increasing the torque applied to the driving member and reducing its speed of rotation, the axes of both the motor, gearbox and driving member being coaxial with a central longitudinal axis of the handle.</p>
    <p>8. The toothbrush of any one of the preceding claims wherein the conversion mechanism comprises a crankshaft. -11 -</p>
    <p>9. The toothbrush of any one of the preceding claims including at least one sliding brush block mounted for linear sliding movement relative to the head and at least one rotary brush block mounted to rotate relative to the head.</p>
    <p>10. The toothbrush of claim 9 wherein three brush blocks are mounted to the head for separate oscillatory movement relative thereto, the brush blocks including a pair of sliding brush blocks and a rotary brush block.</p>
    <p>11. The toothbrush of any one of claims 8-10 wherein the crankshaft is connected to the driven member with which it is connected coaxially, each sliding brush block being mounted for sliding movement substantially perpendicular to the driven member axis, each rotary brush block being mounted for rotation about a respective rotary block axis substantially perpendicular to the sliding block axis, the crankshaft having an eccentric throw for engaging each brush block.</p>
    <p>12. The toothbrush of claim 11 wherein each sliding block throw is received in an aperture in the sliding block which extends substantially parallel to the crankshaft axis, and each rotary block throw is received in a slot in the rotary block which extends substantially parallel to its respective rotary block axis.</p>
    <p>13. The toothbrush of any one of the preceding claims wherein the neck is curved.</p>
    <p>14. A toothbrush substantially as herein described with reference to and as illustrated in the accompanying drawings.</p>
    <p>15. A replaceable brushing attachment comprising: an elongate hollow neck having a proximal end with means for releasably fastening to a handle enclosing a rotary motor, the neck further having a head on a distal end thereof; at least one brush mounted to the head for movement relative thereto; a transmission enclosed substantially within the neck, the transmission including a driving member joined by a connector to a driven member for transmitting torque from the motor, the driving member rotating about a driving member axis, the driven member rotating about a driven member axis; a conversion mechanism mounted to the head and adapted for converting rotation of the driven member to movement of the brush, wherein the driven member axis is skewed or offset relative to the driving member axis, and the connector comprises a helical spring flexible coupling.</p>
    <p>16. The replaceable brushing attachment of claim 15 wherein the flexible coupling comprises a helical spring.</p>
    <p>-11 - 17. The replaceable brushing attachment of claim 15 or claim 16 wherein fastening means at a proximal end of the neck are provided for releasably fastening to the handle.</p>
    <p>18. The replaceable brushing attachment of claim 17 wherein the fastening means is a bayonet coupling, allowing the neck to be fastened by a push-turn action.</p>
    <p>19. The replaceable brushing attachment of any one of claims 16-18 wherein the driving member is mounted at the proximal end and the driven member mounted in the head, the helical spring flexible coupling being elongated to extend within the neck between the driving and driven members.</p>
    <p>20. The replaceable brushing attachment of any one of claims 16-1 9wherein the helical spring flexible coupling has a substantially cylindrical body with outwardly tapered frusto-conical ends adapted to receive cooperating tapered portions of the driving and driven members in a push fit.</p>
    <p>21. The replaceable brushing attachment of any one of claims 1 5-20wherein the conversion mechanism comprises a crankshaft.</p>
    <p>22. The replaceable brushing attachment of any one of claims 15-21 including at least one sliding brush block mounted for linear sliding movement relative to the head and at least one rotary brush block mounted to rotate relative to the head.</p>
    <p>23. The replaceable brushing attachment of claim 22 wherein three brush blocks are mounted to the head for separate oscillatory movement relative thereto, the brush blocks including a pair of sliding brush blocks and a rotary brush block.</p>
    <p>24. The replaceable brushing attachment of any one of claims 21-23 wherein the crankshaft is connected to the driven member with which it is connected coaxially, each sliding brush block being mounted for sliding movement substantially perpendicular to the driven member axis, each rotary brush block being mounted for rotation about a respective rotary block axis substantially perpendicular to the sliding block axis, the crankshaft having an eccentric throw for engaging each brush block.</p>
    <p>25. The replaceable brushing attachment of claim 24 wherein each sliding block throw is received in an aperture in the sliding block which extends substantially parallel to the crankshaft axis, and each rotary block throw is received in a slot in the rotary block which extends substantially parallel to its respective rotary block axis. -15-</p>
    <p>26. The replaceable brushing attachment of any one claims 15-25 wherein the neck is curved.</p>
    <p>27. A replaceable brushing attachment substantially as herein described with reference to and as illustrated in the accompanying drawings.</p>
GB0711985A 2006-06-22 2007-06-21 Electric toothbrush with skewed neck Withdrawn GB2439453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0612398.8A GB0612398D0 (en) 2006-06-22 2006-06-22 Electric toothbrush with skewed neck

Publications (2)

Publication Number Publication Date
GB0711985D0 GB0711985D0 (en) 2007-08-01
GB2439453A true GB2439453A (en) 2007-12-27

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GBGB0612398.8A Ceased GB0612398D0 (en) 2006-06-22 2006-06-22 Electric toothbrush with skewed neck
GB0711985A Withdrawn GB2439453A (en) 2006-06-22 2007-06-21 Electric toothbrush with skewed neck

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GBGB0612398.8A Ceased GB0612398D0 (en) 2006-06-22 2006-06-22 Electric toothbrush with skewed neck

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US (1) US20070294847A1 (en)
GB (2) GB0612398D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4023185A4 (en) * 2019-08-26 2023-09-20 Denflex Co., Ltd. Handpiece

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5292913B2 (en) * 2008-05-09 2013-09-18 オムロンヘルスケア株式会社 electric toothbrush
JP5251265B2 (en) * 2008-06-02 2013-07-31 オムロンヘルスケア株式会社 electric toothbrush
US20100205760A1 (en) * 2009-02-14 2010-08-19 Francisco Alvarenga Toothbrush
US8434183B2 (en) * 2010-08-13 2013-05-07 Braun Gmbh Brush section for an electric toothbrush
JP5526825B2 (en) * 2010-02-02 2014-06-18 オムロンヘルスケア株式会社 Oral care device
US20130247321A1 (en) * 2012-03-06 2013-09-26 Gary Steven Sichau Pressure sensing toothbrush
WO2015119666A1 (en) 2014-02-04 2015-08-13 Stevi, Llc Multi-function electric brush apparatus and systems useful for cleaning teeth and interdental spaces
US10206492B2 (en) 2015-10-09 2019-02-19 Stevi, Llc Brushes useful for cleaning teeth and interdental spaces
USD841333S1 (en) * 2016-11-28 2019-02-26 Colgate Palmolive Company Refill head for an oral care implement
USD837527S1 (en) * 2016-11-28 2019-01-08 Colgate-Palmolive Company Refill head for an oral care implement
ES2980440T3 (en) * 2019-11-18 2024-10-01 Braun Gmbh Personal hygiene device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US573432A (en) * 1896-12-15 Depositing apparatus for bakers or confectioners use
US745722A (en) * 1902-10-09 1903-12-01 Chester M Freeman Dental tool.
GB477799A (en) * 1936-12-22 1938-01-06 Raymond Carl Robinson An improved electrically operated tooth brush
US5169312A (en) * 1991-05-31 1992-12-08 Instruments Dentaires S.A. Dental apparatus intended for driving an instrument for endodontic surgery
US5173983A (en) * 1991-06-04 1992-12-29 Mike Le Electric toothbrush having spirally arranged bristles
US6230717B1 (en) * 1999-04-26 2001-05-15 Alvin J. Marx Motorized disposable toothbrush
EP1348400A1 (en) * 2002-03-28 2003-10-01 McNEIL-PPC, INC. Power toothbrush
WO2004100824A1 (en) * 2003-05-12 2004-11-25 Colgate-Palmolive Company Powered toothbrush with curved neck, flexible shaft and single battery

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1096720A (en) * 1913-06-09 1914-05-12 John W Howery Transmission device.
JP2761234B2 (en) * 1989-02-17 1998-06-04 株式会社泉精器製作所 electric toothbrush
US5529495A (en) * 1995-06-06 1996-06-25 Edwards; Donald L. Right angle dental hand piece with spring drive
US6168433B1 (en) * 1999-11-30 2001-01-02 David A. Hamlin Direct drive dental prophy angle
US6446294B1 (en) * 1999-12-09 2002-09-10 Unilever Home & Personal Care Usa, Division Of Conopco, Inc. Electric toothbrush
GB0010115D0 (en) * 2000-04-27 2000-06-14 Smithkline Beecham Gmbh & Co Toothbrush
US20030140437A1 (en) * 2002-01-31 2003-07-31 Eyal Eliav Powered toothbrush

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US573432A (en) * 1896-12-15 Depositing apparatus for bakers or confectioners use
US745722A (en) * 1902-10-09 1903-12-01 Chester M Freeman Dental tool.
GB477799A (en) * 1936-12-22 1938-01-06 Raymond Carl Robinson An improved electrically operated tooth brush
US5169312A (en) * 1991-05-31 1992-12-08 Instruments Dentaires S.A. Dental apparatus intended for driving an instrument for endodontic surgery
US5173983A (en) * 1991-06-04 1992-12-29 Mike Le Electric toothbrush having spirally arranged bristles
US6230717B1 (en) * 1999-04-26 2001-05-15 Alvin J. Marx Motorized disposable toothbrush
EP1348400A1 (en) * 2002-03-28 2003-10-01 McNEIL-PPC, INC. Power toothbrush
WO2004100824A1 (en) * 2003-05-12 2004-11-25 Colgate-Palmolive Company Powered toothbrush with curved neck, flexible shaft and single battery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4023185A4 (en) * 2019-08-26 2023-09-20 Denflex Co., Ltd. Handpiece

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US20070294847A1 (en) 2007-12-27
GB0612398D0 (en) 2006-08-02
GB0711985D0 (en) 2007-08-01

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