US2583886A - Power-driven toothbrush with demountably supported rotary brushes - Google Patents

Power-driven toothbrush with demountably supported rotary brushes Download PDF

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Publication number
US2583886A
US2583886A US780375A US78037547A US2583886A US 2583886 A US2583886 A US 2583886A US 780375 A US780375 A US 780375A US 78037547 A US78037547 A US 78037547A US 2583886 A US2583886 A US 2583886A
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head
brushes
shafts
section
power
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US780375A
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Alvin J Schlegel
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    • 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
    • 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
    • A61C17/24Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously
    • A61C17/26Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously driven by electric motor

Definitions

  • This invention relates to a driven rotary toothbrush adapted for use in efficiently and properly cleaning the teeth and more particularly has reference to a rotary toothbrush of extremely simple construction capable Aof being driven from a suitable power source for revolving two rotary brushes in opposite directions so that in operation the two brushes f will simultaneously clean the upper and lower teeth in a correct and approved manner and by the movement of the bristles of the brushes longitudinally away from the gums.
  • an aim of the invention is to provide a rotary toothbrushnadapted tobe actuated by an electric motor ⁇ contained Within the handle portion thereof for simultaneously driving the two rotary brushes in opposite directions.
  • a still further object ⁇ of the invention is to provide a rotary toothbrush having a ⁇ novel brush containing head by means of ⁇ which the rotary brushes may be readily removed and replaced.
  • Figure 1 is a top plan view,l partly inA section of the rotary toothbrush
  • Figure 2 is a side elevationalvview thereof
  • Figure 3 is a cross sectional view taken substantially along a plane as indicated by line 3-.-3 of Figure 2; ,l y
  • Figure Ll is anendlevational view looking toward the head" of the brush
  • Figure 5 is a perspective view of the detachable head section of the brush
  • j Y Figure 6 is a fragmentary perspective view of another portion of the rotary toothbrush.
  • the rotary toothbrush comprising the invention is designated generally 1 and includes a housing, designated generally 8 which may be formed of plastic or any other suitable material and which includes a hollow handle portion 3 in which is flxedly positioned a small electric motor I having a driven shaft II projecting from one end thereof towards an enlarged, open inner end of the handle 9 and to which is keyed a pinion I2.
  • the opposite, outer end of the handle 9 is provided with a boss I3 through which the electric conductors I4, connected to the motor I0 extend and which are adapted to be connected to any suitable source of electric current. not shown, such as a conventional electrical outlet, for energizing 1 claim; (cl. ⁇ 15-23) the motor I0.
  • the housing 8 also includes an elongated, substantially dat hollow shank I5 which is provided with a substantially circular head I8 adjacent one end thereof which is threadedly connected, detachably at I1 through the enlarged open inner end of the handle 9.
  • the head I6 is provided with a wall or partition I8 through which spaced bushings or bearings I9 extend' and in which are journaled the shafts 20 and 2 I.
  • the shafts 20 and 2l have meshing gears 22 keyed thereto and disposed in the hollow outer end of the head I6 and said shaft 20 extends beyond the gears 22 into the handle 9 and has a gear 23 keyed thereto which meshes with the pinion I2 so that the shafts 20 and 2l are driven by the motor shaft I I and in opposite directions,
  • the shank I5 is provided adjacent its opposite end with a transverse wall 24 having openings 25 extending therethrough in which are journaled corresponding coupling members 26 which aresuitably connected to or formed integral with the opposite ends of the Shafts 20 and 2I and which are provided at their outer ends with flattened extensions or key 21.
  • the housing 8 also includes a brush head, designated generally 28 formed of sections 29 and 30.
  • the section 29 preferably forms an integral extension of the last mentioned end of the shank I5 and includes a bottom portion andupwardly curved side walls 3 I.
  • the section 30 comprises a bottom 32 the upper side of which is longitudinally grooved at 33, as clearly illustrated in Figure 3 and as seen in 32.
  • Section 3D also includes upwardly curved side walls 34 and an outer end wall 35. ⁇
  • the head section 30 nts into the head section 29 and with the bottom 32 thereof resting on the bottom of the section 23, as seen in Figure 3 and with the side walls 34 disposed Within the side walls 3
  • the side walls 3l are provided with inwardly opening recesses or indentations 36 and the side walls 34 are provided with outwardly projecting teats or projections 31.
  • the walls 3l and 34 are preferably resilient so that the teats 31 can project into the indentations 36 for detachably connecting the head sections 29 and 30 and by spreading the walls 3I said projections 31 can be disengaged from the indentations 36 for disconnecting said head section 30.
  • a pair of rotary brushes 38 are disposed longitudinally within the head section 30 and substantially concentrically of the longitudinal grooves 33 thereof, into which portions of the brushes 38 proj ect and said brushes include shafts 33 which extend axially therethrough and which have corresponding ends thereof journaled in bearing portions 40 of the 'the electric current, it will beY readily obvious that said brushes will be revolved by the ⁇ shafts 20 and V2
  • each of the brushes 38 projects frorn the open y'side of the headiZBf and is in an exposed position so that when the brush head 28 is placed Within the mouth the ⁇ exposed half ofk one of tlife brushes 38 will engagethereover for Wettingj or rinsing the brushes.
  • the head section :30 and brushes v38 carried thereby may beremoved andreplaced by another head section 30 ⁇ containing lbrushes38 and the detached head sections 2 9 and 30 maybe effectively cleaned and' maintained in a sanitary condition; Because *ofV the detachability of the head sections and the ease with which they may becleaned, diierent users, each with his 'own 'head section 30 and vbrushes carried thereby, may utilize ,the remainder of the toothbrush l.
  • cluding-an 'elongated shank portion a pair of shafts extending longitudinally through and journaled in the shank portion, Vrneansgdriving said shaftsin opposite directions, ahead formingan end Vof thehousingandprojecting from one end'of the shank portion and into which 'correi A sponding'ends of the shafts extend, said head having anopen top and including a demountable section and asection formed integral with the shank portionjeach of said head sections includ- A rotary toothbrush comprising a housing in#-v ing a bottom and upwardly extending outwardly bowed side walls, said demountable section having an outer endvprovided with an integral end wall having .laterally spaced bearing openings and an open opposite innerend, said integral head'section having an inner end closed by said end 0f .the shank portion and having an open fo'ut'e'r .ndirthfoug'h which theieinfountable head section is inserted into or

Description

Jan. 29, 1952 A 1 SCHLEGEL 2,583,886
POWER-DRIVEN TOOTHBRUSH WITH DEMOUNTABLY SUPPORTED ROTARY BRUSHES Filed OC. 17, 1947 Inventor 14mm (L5M zye Atlorneys Patented Jan. 29, 1952 POWER-DRIVEN TOTHBRUSH WITH DEMOUNTABLY SUPPORTED RO'- 'rAnr BRUSHES p f Alvin J. Schlegel, Wichita, Kans.
t Application octoteriv, 1947, Serial No; 780,375
This invention relates to a driven rotary toothbrush adapted for use in efficiently and properly cleaning the teeth and more particularly has reference to a rotary toothbrush of extremely simple construction capable Aof being driven from a suitable power source for revolving two rotary brushes in opposite directions so that in operation the two brushes f will simultaneously clean the upper and lower teeth in a correct and approved manner and by the movement of the bristles of the brushes longitudinally away from the gums. i y
More particularly, an aim of the invention is to provide a rotary toothbrushnadapted tobe actuated by an electric motor` contained Within the handle portion thereof for simultaneously driving the two rotary brushes in opposite directions.
A still further object` of the invention is to provide a rotary toothbrush having a `novel brush containing head by means of` which the rotary brushes may be readily removed and replaced.
Other objects and advantages of the invention will hereinafter become more fully apparent from the following description of the drawing, illustrating a presenthr preferred embodiment thereof, and wherein: A j. Y Y
Figure 1 is a top plan view,l partly inA section of the rotary toothbrush;
Figure 2 is a side elevationalvview thereof; y
Figure 3 is a cross sectional view taken substantially along a plane as indicated by line 3-.-3 of Figure 2; ,l y
Figure Ll is anendlevational view looking toward the head" of the brush;
Figure 5 is a perspective view of the detachable head section of the brush, and j Y Figure 6 is a fragmentary perspective view of another portion of the rotary toothbrush.
Referring more specifically to the drawing, the rotary toothbrush comprising the invention is designated generally 1 and includes a housing, designated generally 8 which may be formed of plastic or any other suitable material and which includes a hollow handle portion 3 in which is flxedly positioned a small electric motor I having a driven shaft II projecting from one end thereof towards an enlarged, open inner end of the handle 9 and to which is keyed a pinion I2. The opposite, outer end of the handle 9 is provided with a boss I3 through which the electric conductors I4, connected to the motor I0 extend and which are adapted to be connected to any suitable source of electric current. not shown, such as a conventional electrical outlet, for energizing 1 claim; (cl. `15-23) the motor I0. The housing 8 also includes an elongated, substantially dat hollow shank I5 which is provided with a substantially circular head I8 adjacent one end thereof which is threadedly connected, detachably at I1 through the enlarged open inner end of the handle 9. 'The head I6 is provided with a wall or partition I8 through which spaced bushings or bearings I9 extend' and in which are journaled the shafts 20 and 2 I. The shafts 20 and 2l have meshing gears 22 keyed thereto and disposed in the hollow outer end of the head I6 and said shaft 20 extends beyond the gears 22 into the handle 9 and has a gear 23 keyed thereto which meshes with the pinion I2 so that the shafts 20 and 2l are driven by the motor shaft I I and in opposite directions, The shank I5 is provided adjacent its opposite end with a transverse wall 24 having openings 25 extending therethrough in which are journaled corresponding coupling members 26 which aresuitably connected to or formed integral with the opposite ends of the Shafts 20 and 2I and which are provided at their outer ends with flattened extensions or key 21. t
The housing 8 also includes a brush head, designated generally 28 formed of sections 29 and 30. The section 29 preferably forms an integral extension of the last mentioned end of the shank I5 and includes a bottom portion andupwardly curved side walls 3 I. The section 30 comprises a bottom 32 the upper side of which is longitudinally grooved at 33, as clearly illustrated in Figure 3 and as seen in 32. Section 3D also includes upwardly curved side walls 34 and an outer end wall 35.` The head section 30 nts into the head section 29 and with the bottom 32 thereof resting on the bottom of the section 23, as seen in Figure 3 and with the side walls 34 disposed Within the side walls 3|. The side walls 3l are provided with inwardly opening recesses or indentations 36 and the side walls 34 are provided with outwardly projecting teats or projections 31. The walls 3l and 34 are preferably resilient so that the teats 31 can project into the indentations 36 for detachably connecting the head sections 29 and 30 and by spreading the walls 3I said projections 31 can be disengaged from the indentations 36 for disconnecting said head section 30. A pair of rotary brushes 38 are disposed longitudinally within the head section 30 and substantially concentrically of the longitudinal grooves 33 thereof, into which portions of the brushes 38 proj ect and said brushes include shafts 33 which extend axially therethrough and which have corresponding ends thereof journaled in bearing portions 40 of the 'the electric current, it will beY readily obvious that said brushes will be revolved by the `shafts 20 and V2| in opposite directions as indicated byY It will also be apparent` arrows 42 in FigureV 3. that approximately a half of each of the brushes 38 projects frorn the open y'side of the headiZBf and is in an exposed position so that when the brush head 28 is placed Within the mouth the` exposed half ofk one of tlife brushes 38 will engagethereover for Wettingj or rinsing the brushes.
Itiwillalso be 'readily apparent that the head section :30 and brushes v38 carried thereby may beremoved andreplaced by another head section 30 `containing lbrushes38 and the detached head sections 2 9 and 30 maybe effectively cleaned and' maintained in a sanitary condition; Because *ofV the detachability of the head sections and the ease with which they may becleaned, diierent users, each with his 'own 'head section 30 and vbrushes carried thereby, may utilize ,the remainder of the toothbrush l.
"Various modi'cations "and changes are con? templ'ated and may obviously be resorted to, without departing from the spirit or scope of the invention as hereinafter dened by the'appe'nded claim.
1 AI-claim as niy'invention: Y
cluding-an 'elongated shank portion, a pair of shafts extending longitudinally through and journaled in the shank portion, Vrneansgdriving said shaftsin opposite directions, ahead formingan end Vof thehousingandprojecting from one end'of the shank portion and into which 'correi A sponding'ends of the shafts extend, said head having anopen top and including a demountable section and asection formed integral with the shank portionjeach of said head sections includ- A rotary toothbrush comprising a housing in#-v ing a bottom and upwardly extending outwardly bowed side walls, said demountable section having an outer endvprovided with an integral end wall having .laterally spaced bearing openings and an open opposite innerend, said integral head'section having an inner end closed by said end 0f .the shank portion and having an open fo'ut'e'r .ndirthfoug'h which theieinfountable head section is inserted into or removed from the integral head section, a pair of rotary brushes disposed in the demountable head section each incldi'ngia shaft, corresponding ends of said brush shaftsfbein'g `journaled in said bearing openings for supporting and journaling the rotary brushesV in the demountable head section, saidside walls`V of the head sections being resilient, the side walls V"of thelclemointable head section having outwardly vprojecting studs, the side walls Yof the integralheadsection having openings to receive the studs for detachably latching the demountable jhead section in the Yintegral headse'ctiom said -rs't Ymentioned shafts and said brush shafts having adjacent ends provided with "interengafging tongue and groove means for keying the 'first mentioned shafts to the brush shafts, said demountablehead sectionbeing insertable into and removable from integral "head section in l directions longitudinally of "-the shank portion for coupling and uncoupling' the rst Vmentioned shafts and the 'brush 'shaftsfand said interengaging studs and openings of `AAthe side vwalls latching the head sections together and the first mentioned shafts Van'dlast mentioned shafts vvin coupled engagement, the ,outer end of the '-demountable head section forming vthe outer end of 'said head. Y
" ALVIN YJ. SCHLEGEL.V
REFERENCES YCITED The Vfollowing references are of record inthe nie of this patent:
VUNITED STATES PATENTS Number Name :Date
1,172,792 Hammel Feb. -242, 1916 1,340,093 Wes'thafer Mayll, 1920 1,434,436 Goi Now-7, A11922- 1503,050 Jurk et al. f July 29,1924 1,510,116 Van Meter f Sept. 30, -1924 1,620,990 Brothers Mar. y15,"192'7 y1,901,503 lFess'e'niien Mar.1'4,.1933 2,044,344 ABignall .June 16, 1936' 2,124,145 Merkel July ll-9, 193
FREIGN `PATENTS Number Country Date 631,543 France Dec. 22, 1927 656,246
US780375A 1947-10-17 1947-10-17 Power-driven toothbrush with demountably supported rotary brushes Expired - Lifetime US2583886A (en)

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Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691182A (en) * 1951-10-26 1954-10-12 Calvin U Baize Triple action spiral toothbrush
US2739327A (en) * 1953-08-24 1956-03-27 Paul H Blair Power-operated toothbrush
US3028614A (en) * 1956-12-31 1962-04-10 Willard H Bristow Electric brush
US3813720A (en) * 1971-10-26 1974-06-04 Sylvie A Power-driven rotary brush
US3927434A (en) * 1973-05-14 1975-12-23 Fred M Burgess Water powdered rotary brush
US4313237A (en) * 1980-03-18 1982-02-02 Smith Eric L Driven rotary toothbrush
EP0046521A1 (en) * 1980-08-25 1982-03-03 Giosuè Mario Lazzari A powered rotating device for teeth cleaning
EP0206574A1 (en) * 1985-06-07 1986-12-30 David V. Mollenhoff Rotary electric toothbrush
WO1987000405A1 (en) * 1985-07-24 1987-01-29 Elio Gritti Toothbrush with rotary brushes
US5088145A (en) * 1990-03-26 1992-02-18 Whitefield Robert O Electrically powered toothbrush
US5269038A (en) * 1991-03-29 1993-12-14 Bradley Terry G Rocker toothbrush
US5337435A (en) * 1992-09-18 1994-08-16 Krasner Janet H Automatic toothbrush
US5398366A (en) * 1991-03-29 1995-03-21 Bradley; Terry Rocker toothbrush
US5428855A (en) * 1994-07-11 1995-07-04 Li; Raui-Long Rotatable toothbrush
AU673697B2 (en) * 1992-12-09 1996-11-21 Johnson & Johnson Consumer Products, Inc. Toothbrush
US6389634B1 (en) 1998-11-24 2002-05-21 Gillette Canada Company Oral devices
US20040128784A1 (en) * 2000-07-18 2004-07-08 Ramy Weitz Toothbrush with longitudinal to lateral motion conversion
US6823554B1 (en) 2000-10-05 2004-11-30 Gillette Canada Company Oral devices
US20050060822A1 (en) * 2003-09-19 2005-03-24 Chenvainu Alexander T. Toothbrushes
US7316044B1 (en) * 2005-10-13 2008-01-08 Huy Nguyen Toothbrush having counter-rotating heads
US20080052845A1 (en) * 2006-09-05 2008-03-06 Djang Sam S Cylindrical dual rotating electric toothbrush
FR2910805A1 (en) * 2006-12-29 2008-07-04 Jean F Amiaut Oral mucosa brushing and massaging device for dental hygiene, has reducing gear controlled using reversing device contained in hermetically sealed casing, where casing contains connection associated to supply cord
US20110067187A1 (en) * 2009-09-21 2011-03-24 Sherman Pegross Electric toothbrush
US20110113576A1 (en) * 2009-11-17 2011-05-19 Yankell Samuel L Toothbrush with movable head
US20110138552A1 (en) * 2008-01-14 2011-06-16 Dental Revolution Ltd Toothbrush with dual rotary brushing system
US8516642B1 (en) 2012-02-21 2013-08-27 King Fahd University Of Petroleum And Minerals Curved-head electric toothbrush
US8584292B1 (en) * 2007-09-05 2013-11-19 Sam Djang Dual rotating electric toothbrush
US20140325771A1 (en) * 2011-11-21 2014-11-06 Patrick Arnoux Toothbrush apparatus having multiple rotatable brushing systems
ITUB20152002A1 (en) * 2015-07-09 2017-01-09 Luciano Naldi TOOTHBRUSH

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1172792A (en) * 1915-05-25 1916-02-22 Leo A Hamel Tooth-brush.
US1340093A (en) * 1918-07-29 1920-05-11 James S Westhafer Toothbrush
US1434436A (en) * 1920-05-13 1922-11-07 Goff Harold Wheeler Toothbrush
US1503050A (en) * 1922-02-01 1924-07-29 August H Jurk Rotary toothbrush
US1510116A (en) * 1922-04-17 1924-09-30 Arthur Lee Van Meter Polishing or buffing device
US1620994A (en) * 1926-01-22 1927-03-15 Bustamante Eduardo Device for firing cannons
FR631543A (en) * 1927-03-29 1927-12-22 Rotary toothbrush
FR656246A (en) * 1928-06-22 1929-04-30 Mechanically actuated rotating brush
US1901503A (en) * 1928-09-27 1933-03-14 Reginald A Fessenden Rotary brush
US2044344A (en) * 1934-03-21 1936-06-16 Vernon B Bagnall Rotary tooth brush
US2124145A (en) * 1934-10-18 1938-07-19 Jr John Merkel Motor driven rotary tooth brush

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1172792A (en) * 1915-05-25 1916-02-22 Leo A Hamel Tooth-brush.
US1340093A (en) * 1918-07-29 1920-05-11 James S Westhafer Toothbrush
US1434436A (en) * 1920-05-13 1922-11-07 Goff Harold Wheeler Toothbrush
US1503050A (en) * 1922-02-01 1924-07-29 August H Jurk Rotary toothbrush
US1510116A (en) * 1922-04-17 1924-09-30 Arthur Lee Van Meter Polishing or buffing device
US1620994A (en) * 1926-01-22 1927-03-15 Bustamante Eduardo Device for firing cannons
FR631543A (en) * 1927-03-29 1927-12-22 Rotary toothbrush
FR656246A (en) * 1928-06-22 1929-04-30 Mechanically actuated rotating brush
US1901503A (en) * 1928-09-27 1933-03-14 Reginald A Fessenden Rotary brush
US2044344A (en) * 1934-03-21 1936-06-16 Vernon B Bagnall Rotary tooth brush
US2124145A (en) * 1934-10-18 1938-07-19 Jr John Merkel Motor driven rotary tooth brush

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691182A (en) * 1951-10-26 1954-10-12 Calvin U Baize Triple action spiral toothbrush
US2739327A (en) * 1953-08-24 1956-03-27 Paul H Blair Power-operated toothbrush
US3028614A (en) * 1956-12-31 1962-04-10 Willard H Bristow Electric brush
US3813720A (en) * 1971-10-26 1974-06-04 Sylvie A Power-driven rotary brush
US3927434A (en) * 1973-05-14 1975-12-23 Fred M Burgess Water powdered rotary brush
US4313237A (en) * 1980-03-18 1982-02-02 Smith Eric L Driven rotary toothbrush
EP0046521A1 (en) * 1980-08-25 1982-03-03 Giosuè Mario Lazzari A powered rotating device for teeth cleaning
EP0206574A1 (en) * 1985-06-07 1986-12-30 David V. Mollenhoff Rotary electric toothbrush
WO1987000405A1 (en) * 1985-07-24 1987-01-29 Elio Gritti Toothbrush with rotary brushes
FR2585223A1 (en) * 1985-07-24 1987-01-30 Gritti Elio ROTARY BROOM TOOTHBRUSH
US5088145A (en) * 1990-03-26 1992-02-18 Whitefield Robert O Electrically powered toothbrush
US5269038A (en) * 1991-03-29 1993-12-14 Bradley Terry G Rocker toothbrush
US5398366A (en) * 1991-03-29 1995-03-21 Bradley; Terry Rocker toothbrush
US5337435A (en) * 1992-09-18 1994-08-16 Krasner Janet H Automatic toothbrush
AU673697B2 (en) * 1992-12-09 1996-11-21 Johnson & Johnson Consumer Products, Inc. Toothbrush
US5428855A (en) * 1994-07-11 1995-07-04 Li; Raui-Long Rotatable toothbrush
US6389634B1 (en) 1998-11-24 2002-05-21 Gillette Canada Company Oral devices
US20040128784A1 (en) * 2000-07-18 2004-07-08 Ramy Weitz Toothbrush with longitudinal to lateral motion conversion
US6823554B1 (en) 2000-10-05 2004-11-30 Gillette Canada Company Oral devices
US8621698B2 (en) 2003-09-19 2014-01-07 Braun Gmbh Toothbrushes
US20110179595A1 (en) * 2003-09-19 2011-07-28 Chenvainu Alexander T Toothbrushes
US9204949B2 (en) 2003-09-19 2015-12-08 The Gillettte Company Toothbrushes
US20050060822A1 (en) * 2003-09-19 2005-03-24 Chenvainu Alexander T. Toothbrushes
US7941886B2 (en) 2003-09-19 2011-05-17 Braun Gmbh Toothbrushes
US7316044B1 (en) * 2005-10-13 2008-01-08 Huy Nguyen Toothbrush having counter-rotating heads
US20080052845A1 (en) * 2006-09-05 2008-03-06 Djang Sam S Cylindrical dual rotating electric toothbrush
FR2910805A1 (en) * 2006-12-29 2008-07-04 Jean F Amiaut Oral mucosa brushing and massaging device for dental hygiene, has reducing gear controlled using reversing device contained in hermetically sealed casing, where casing contains connection associated to supply cord
US8584292B1 (en) * 2007-09-05 2013-11-19 Sam Djang Dual rotating electric toothbrush
US20110138552A1 (en) * 2008-01-14 2011-06-16 Dental Revolution Ltd Toothbrush with dual rotary brushing system
US8448283B2 (en) * 2008-01-14 2013-05-28 Patrick Arnoux Toothbrush with dual rotary brushing system
US20110067187A1 (en) * 2009-09-21 2011-03-24 Sherman Pegross Electric toothbrush
US8701236B2 (en) * 2009-09-21 2014-04-22 Sherman Pegross Electric toothbrush
US20110113576A1 (en) * 2009-11-17 2011-05-19 Yankell Samuel L Toothbrush with movable head
US20140325771A1 (en) * 2011-11-21 2014-11-06 Patrick Arnoux Toothbrush apparatus having multiple rotatable brushing systems
US9468286B2 (en) * 2011-11-21 2016-10-18 Patrick Arnoux Toothbrush apparatus having multiple rotatable brushing systems
US8516642B1 (en) 2012-02-21 2013-08-27 King Fahd University Of Petroleum And Minerals Curved-head electric toothbrush
ITUB20152002A1 (en) * 2015-07-09 2017-01-09 Luciano Naldi TOOTHBRUSH

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