US3488788A - Electric ultrasonic toothbrush - Google Patents

Electric ultrasonic toothbrush Download PDF

Info

Publication number
US3488788A
US3488788A US701963A US70196368A US3488788A US 3488788 A US3488788 A US 3488788A US 701963 A US701963 A US 701963A US 70196368 A US70196368 A US 70196368A US 3488788 A US3488788 A US 3488788A
Authority
US
United States
Prior art keywords
ultrasonic
handle
bristles
toothbrush
electric
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.)
Expired - Lifetime
Application number
US701963A
Inventor
Seymour Robinson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US701963A priority Critical patent/US3488788A/en
Application granted granted Critical
Publication of US3488788A publication Critical patent/US3488788A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/20—Power-driven cleaning or polishing devices using ultrasonics

Definitions

  • This invention relates in general to dental hygiene and more particularly to an ultrasonic toothbrush which will remove and prevent the formation of plaque or tartar on teeth.
  • Prior electric toothbrushes apply mechanically produced reciprocation motion to the bristles of a toothbrush at a relatively low frequency and in combination with a dentifrice will remove food particles and reduce the formation of plaque and calculus to a limited degree. It is well known that for proper tooth hygiene professional mechanical methods must be used periodically to scale the calculus from the teeth to maintain healthy gums.
  • the present invention greatly improves the above results and greatly reduces the periods of professional services required by the provision and use of an ultrasonic toothbrush, the bristles of which are adapted to carry saliva or the mixture of dentifrice and saliva, which carries ultrasonic oscillation to the surface of each tooth for the removal of plaque and calculus encrustations without injury to the enamel of the tooth.
  • a further object of the invention is the provision of an ultrasonic toothbrush which greatly reduces the time element in ordinary brushing by thoroughly removing trapped food particles between the teeth in addition to limiting the formation of calculus thereon.
  • FIG. 1 is a perspective view of the ultrasonic toothbrush including an illustration of the electric ultrasonic generator therefor.
  • FIG. 2 is a fragmentary underside view of the brush shown in FIG. 1.
  • FIG. 3 is a side elevation taken through section line 3-3, FIG. 1.
  • FIG. 4 is a cross sectional end elevation taken through section line 44, FIG. 2.
  • FIG. 5 is a perspective top view of the detachable brush shown in FIG. 1.
  • FIG. 6 is a perspective view of the transducer assembly shown in FIG. 3.
  • FIG. 7 is a side cross section elevation of the transducer assembly taken through section line 77, FIG. 6.
  • FIG. 8 is a perspective exploded view of the toothbrush shown in FIG. 1.
  • the electronic toothbrush comprises a hollow handle 1 having a closure cap 2 in the rear end thereof and a detachable brush type applicator 3 removably secured in the opposite end of the handle.
  • An ultrasonic drive member 4 terminates in an oblique portion 5 which has the outer end thereof positioned for free movement within the confines of the brush, as shown.
  • An electronic oscillator and amplifier 6 preferably a solid state device, is adapted to be energized by a power cord assembly 7 from a common source of commercial A.C. electric power.
  • the electric ultrasonic output in the order of 30 kilocycles is carried to the toothbrush by a pair of leads in a flexible cord 8.
  • Well known adjustment means are provided to vary the frequency and ultrasonic electric out-put of the oscillator and amplifier 6.
  • the brush applicator or head 3 is detachably secured in the handle 1 by means of a detent means comprising an open snap ring 9 retained in an inner peripheral groove in the handle, as shown, in FIGS. 2 and 3 in exaggerated size for the purpose of illustration.
  • a detent means comprising an open snap ring 9 retained in an inner peripheral groove in the handle, as shown, in FIGS. 2 and 3 in exaggerated size for the purpose of illustration.
  • a resilient member 13 of uniform thickness preferably made of rubber or other plastic or elastomer material, is secured by well known adhesive means over the top side of slot 12, as shown in FIGS. 3, 4, and 5.
  • FIG. 3 shows an electronic transducer element 14, of well known piezoelectric crystalin material, such as lead zirconite and barium titanate, which is secured to drive member 4 by rigid coupling 15, to be hereinafter described in detail. It is to be understood that other types of ultrasonic transducers, such as magneto striction devices will operate equivalent to the crystal variety shown.
  • the outer electrode of the crystal is connected to the conductor 17 and the conductor 17 is connected to the inner end of the crystal, not shown.
  • a longitudinal coaxial bore 18 in the brush applicator 3 is coaxial with the applicator terminus and junctions with the slot 12 therein, better shown in FIG. 3.
  • FIG. 6 shows the typical ceramic transducer element 14.
  • the transducer is formed to oscillate in the direction shown by arrow with reference to the handle when energized by oscillating electric energy and because of the rigid coupling 15 between the transducer elements and the drive member 4. It is apparent that the latter will oscillate longitudinally with the end of element 14.
  • FIG. 7 illustrates the coupling of the drive member 4 with the crystal element 14a by means of a disc 19 secured to the crystal element by brazing or epoxy adhesive means to which the inner end of the driving member 4 is centrally secured by similar means.
  • a reinforcement cup 15, secured to element 14, is provided with a central aperture for the passage of the drive member 4, as shown.
  • a key 20, integral with the body of the brush applicator is provided to engage a keyway 21 in the inner periphery of the handle 1 when the brush is assembled, as shown in FIG. 1.
  • the drive member 4 In operation and under the assumption that the power cord 7 is connected to a source of energy and the oscillator-amplifier 6 is preadjusted then the drive member 4 will reciprocate at a predetermined ultrasonic frequency and amplitude.
  • the oblique portion 5 of the driver In use and when a dentifrice or liquid is applied to the bristles and the bristles are placed against the teeth, then the oblique portion 5 of the driver will excite the liquid between and surrounding the bristles with ultrasonic vibration at a forced vector due to the oblique end of the drive member 4.
  • the saliva and the mixture of the dentifrice therewith will impinge against the surface of the teeth at ultrasonic frequency and quickly remove food particles, plaque and calculus at relatively short periods of time.
  • An electric ultrasonic toothbrush comprising means forming a hollow handle
  • a toothbrush head detachably secured to said handle including a plurality of tufts of bristles of predetermined length projecting from one side thereof,
  • said head having an axial bore entering said handle joining an elongated slot centrally positioned between said bristles,
  • An electric ultrasonic toothbrush comprising means forming a hollow handle
  • a toothbrush head detachably secured to said handle including a plurality of tufts of bristles of predetermined length projecting from one side thereof,
  • said head having an axial opening entering said handle joining an elongated axial slot centrally positione between said bristles,
  • an ultrasonic polycrystal piezoelectric transducer means secured in said handle and adapted for ultrasonic motion at the output end thereof when electrically energized at the input thereof
  • an electric ultrasonic generator means having an output and an input with the latter connected to said source of energy
  • said bore having a circular recess around the inner periphery thereof

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)

Description

Jan. 13, 1970 s. ROBINSON ELECTRIC ULTRASONIC TOOTHBRUSH 2 Sheets-Sheet 1 Filed Jan. 51, 1968 INVENTOR. SEYMOUR ROBINSON Jan. 13, 1970 s. ROBINSON ELECTRIC ULTRASONIC TOOTHBRUSH v 2 Sheets-Sheet 2 Filed Jan. 31, 1968 INVENTOR.
SEYMOUR ROBINSON United States Patent-O 3,488,788 ELECTRIC ULTRASONIC TOOTHBRUSH Seymour Robinson, Miami, Fla., assignor of fifty percent to Stanley M. Richardson, Miami Beach, Fla. Filed Jan. 31, 1968, Ser. No. 701,963 Int. Cl. A46b 13/04 US. Cl. 15-4 4 Claims ABSTRACT OF THE DISCLOSURE An electric ultrasonic toothbrush having a transducer assembly in the handle thereof which is adapted to drive liquid on and between the bristles of a brush applicator secured to the end of the handle when the transducer is connected to an electronic oscillator source of ultrasonic energy.
This invention relates in general to dental hygiene and more particularly to an ultrasonic toothbrush which will remove and prevent the formation of plaque or tartar on teeth.
Prior electric toothbrushes apply mechanically produced reciprocation motion to the bristles of a toothbrush at a relatively low frequency and in combination with a dentifrice will remove food particles and reduce the formation of plaque and calculus to a limited degree. It is well known that for proper tooth hygiene professional mechanical methods must be used periodically to scale the calculus from the teeth to maintain healthy gums.
The present invention greatly improves the above results and greatly reduces the periods of professional services required by the provision and use of an ultrasonic toothbrush, the bristles of which are adapted to carry saliva or the mixture of dentifrice and saliva, which carries ultrasonic oscillation to the surface of each tooth for the removal of plaque and calculus encrustations without injury to the enamel of the tooth.
A further object of the invention is the provision of an ultrasonic toothbrush which greatly reduces the time element in ordinary brushing by thoroughly removing trapped food particles between the teeth in addition to limiting the formation of calculus thereon.
These and other advantages in one embodiment of the invention are described and shown in the following specification and drawings, in which:
FIG. 1 is a perspective view of the ultrasonic toothbrush including an illustration of the electric ultrasonic generator therefor.
FIG. 2 is a fragmentary underside view of the brush shown in FIG. 1.
FIG. 3 is a side elevation taken through section line 3-3, FIG. 1.
FIG. 4 is a cross sectional end elevation taken through section line 44, FIG. 2.
FIG. 5 is a perspective top view of the detachable brush shown in FIG. 1.
FIG. 6 is a perspective view of the transducer assembly shown in FIG. 3.
FIG. 7 is a side cross section elevation of the transducer assembly taken through section line 77, FIG. 6.
FIG. 8 is a perspective exploded view of the toothbrush shown in FIG. 1.
Referring to FIG. 1, the electronic toothbrush comprises a hollow handle 1 having a closure cap 2 in the rear end thereof and a detachable brush type applicator 3 removably secured in the opposite end of the handle. An ultrasonic drive member 4 terminates in an oblique portion 5 which has the outer end thereof positioned for free movement within the confines of the brush, as shown.
3,488,788 Patented Jan. 13, 1970 An electronic oscillator and amplifier 6, preferably a solid state device, is adapted to be energized by a power cord assembly 7 from a common source of commercial A.C. electric power. The electric ultrasonic output in the order of 30 kilocycles is carried to the toothbrush by a pair of leads in a flexible cord 8. Well known adjustment means are provided to vary the frequency and ultrasonic electric out-put of the oscillator and amplifier 6.
Referring to FIG. 2, the brush applicator or head 3 is detachably secured in the handle 1 by means of a detent means comprising an open snap ring 9 retained in an inner peripheral groove in the handle, as shown, in FIGS. 2 and 3 in exaggerated size for the purpose of illustration. When the shoulder 10 of the applicator is inserted against the end of the handle then the snap ring 9 will engage a peripheral groove 11 in the applicator terminus which will removably retain the brush to the handle. An elongated slot 12 is provided in the body of the applicator which provides substantial clearance between the body and the drive member 4.
A resilient member 13 of uniform thickness, preferably made of rubber or other plastic or elastomer material, is secured by well known adhesive means over the top side of slot 12, as shown in FIGS. 3, 4, and 5.
FIG. 3 shows an electronic transducer element 14, of well known piezoelectric crystalin material, such as lead zirconite and barium titanate, which is secured to drive member 4 by rigid coupling 15, to be hereinafter described in detail. It is to be understood that other types of ultrasonic transducers, such as magneto striction devices will operate equivalent to the crystal variety shown. The outer electrode of the crystal is connected to the conductor 17 and the conductor 17 is connected to the inner end of the crystal, not shown.
It is to be noted that a longitudinal coaxial bore 18 in the brush applicator 3 is coaxial with the applicator terminus and junctions with the slot 12 therein, better shown in FIG. 3.
FIG. 6 shows the typical ceramic transducer element 14. The transducer is formed to oscillate in the direction shown by arrow with reference to the handle when energized by oscillating electric energy and because of the rigid coupling 15 between the transducer elements and the drive member 4. It is apparent that the latter will oscillate longitudinally with the end of element 14.
The cross section shown in FIG. 7 illustrates the coupling of the drive member 4 with the crystal element 14a by means of a disc 19 secured to the crystal element by brazing or epoxy adhesive means to which the inner end of the driving member 4 is centrally secured by similar means. A reinforcement cup 15, secured to element 14, is provided with a central aperture for the passage of the drive member 4, as shown.
Referring to FIG. 8, and to prevent improper orientation of the brush applicator with the drive member 4, a key 20, integral with the body of the brush applicator, is provided to engage a keyway 21 in the inner periphery of the handle 1 when the brush is assembled, as shown in FIG. 1.
In operation and under the assumption that the power cord 7 is connected to a source of energy and the oscillator-amplifier 6 is preadjusted then the drive member 4 will reciprocate at a predetermined ultrasonic frequency and amplitude. In use and when a dentifrice or liquid is applied to the bristles and the bristles are placed against the teeth, then the oblique portion 5 of the driver will excite the liquid between and surrounding the bristles with ultrasonic vibration at a forced vector due to the oblique end of the drive member 4. Thus the saliva and the mixture of the dentifrice therewith will impinge against the surface of the teeth at ultrasonic frequency and quickly remove food particles, plaque and calculus at relatively short periods of time.
It is to be noted that the vibration forces emanating from the rear side of the outer end drive member 4 is substantially absorbed by the resilient member 13 with the possible exception of components reflected toward the teeth and reinforcing the etfectiveness of the primary oscillation.
Having described my invention, I claim:
1. An electric ultrasonic toothbrush comprising means forming a hollow handle,
a toothbrush head detachably secured to said handle including a plurality of tufts of bristles of predetermined length projecting from one side thereof,
said head having an axial bore entering said handle joining an elongated slot centrally positioned between said bristles,
an ultrasonic transducer means secured in said handle adapted for axial ultrasonic motion at the output end thereof when energized at the input end thereof, 7
an elongated drive member secured to and extending from the output end of said transducer means through the said bore in said head and centrally positioned in said slot for ultrasonic longitudinal vibration therein,
a predetermined outer end portion of said drive member formed at a predetermined angle oblique with respect to the principal axis of said member toward said bristles for transmitting vectors of axial vibration forces in the member vibrating in a direction substantially normal to said member and substantially parallel said bristles,
a source of ultrasonic electric energy,
a pair of conductors connected to said source of energy and said input end of said transducer whereby said head when immersed in a liquid media ultrasonic vibration is transmitted from said driver means and along said bristles by said media when said transducer is energized by said source of energy.
2. The construction recited in claim 1 whereby a resilient member of predetermined thickness is marginally secured over said slot on the side of said head opposite said bristles for absorbing vectors of vibration forces radiating from the inner side of the outer end portion of said drive member.
3. An electric ultrasonic toothbrush comprising means forming a hollow handle,
a toothbrush head detachably secured to said handle including a plurality of tufts of bristles of predetermined length projecting from one side thereof,
said head having an axial opening entering said handle joining an elongated axial slot centrally positione between said bristles,
an ultrasonic polycrystal piezoelectric transducer means secured in said handle and adapted for ultrasonic motion at the output end thereof when electrically energized at the input thereof,
an elongated drive member secured to and extending from the output end of said transducer means and extending through said bore in said head and positioned centrally in spaced relation in said slot for ultrasonic longitudinal vibration therein,
a predetermined outer end portion of said drive member formed at a predetermined angle oblique with respect to the principal axis of said member toward said bristles for transmitting vectors of axial vibration forces in the member vibrating in a direction substantially normal to said member and substantially parallel said bristles,
a source of electric energy,
an electric ultrasonic generator means having an output and an input with the latter connected to said source of energy,
the said output of said generator connected by flexible conductors to the said input of said transducer means whereby said head when immersed in a liquid media ultrasonic vibration is transmitted from said driver means and along said bristles by said media when said generator is energized.
4. The construction recited in claim 3 including a detent for removably retaining said head to said handle comprising a cylindrical terminus integral with said head including a groove around the periphery thereof,
a bore in said handle for slidably receiving said cylindrical terminus,
said bore having a circular recess around the inner periphery thereof,
a compressible open ring retained in said recess whereby said groove in said terminus will engage said ring and removably hold said head on said handle.
References Cited UNITED STATES PATENTS 8/1967 Parisi et a1 1522 4/1968 Kuris et al 1522 X FOREIGN PATENTS 539,735 12/1931 Germany.
EDWARD L. ROBERTS, Primary Examiner U.S. Cl. X.R.
US701963A 1968-01-31 1968-01-31 Electric ultrasonic toothbrush Expired - Lifetime US3488788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US701963A US3488788A (en) 1968-01-31 1968-01-31 Electric ultrasonic toothbrush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US701963A US3488788A (en) 1968-01-31 1968-01-31 Electric ultrasonic toothbrush

Publications (1)

Publication Number Publication Date
US3488788A true US3488788A (en) 1970-01-13

Family

ID=24819374

Family Applications (1)

Application Number Title Priority Date Filing Date
US701963A Expired - Lifetime US3488788A (en) 1968-01-31 1968-01-31 Electric ultrasonic toothbrush

Country Status (1)

Country Link
US (1) US3488788A (en)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760799A (en) * 1972-03-02 1973-09-25 D Crowson Sonic teeth-cleaning apparatus and method
US3809977A (en) * 1971-02-26 1974-05-07 Ultrasonic Systems Ultrasonic kits and motor systems
US3840932A (en) * 1972-12-26 1974-10-15 Ultrasonic Systems Ultrasonic toothbrush applicator
USRE28752E (en) * 1971-02-26 1976-03-30 Ultrasonic Systems, Inc. Ultrasonic kits and motor systems
US4176454A (en) * 1977-04-25 1979-12-04 Biosonics International, Ltd. Ultrasonic tooth cleaner
US4333197A (en) * 1980-06-02 1982-06-08 Arthur Kuris Ultrasonic toothbrush
EP0174740A1 (en) * 1984-08-14 1986-03-19 Hiroshi Hukuba Electric tooth-brush
US4726806A (en) * 1984-08-14 1988-02-23 Hiroshi Hukuba Electric tooth-brush
US4787847A (en) * 1985-03-26 1988-11-29 The University Of Washington Dental hygiene device
US4944296A (en) * 1987-08-10 1990-07-31 Hideo Suyama Electronic toothbrush
US5309590A (en) * 1990-12-13 1994-05-10 Gemtech, Inc. Dentifrice/medication dispensing toothbrush
US5378153A (en) * 1992-02-07 1995-01-03 Gemtech, Inc. High performance acoustical cleaning apparatus for teeth
US5597437A (en) * 1995-01-12 1997-01-28 Procter & Gamble Zero scrap absorbent core formation process
WO2002038070A1 (en) * 2000-11-09 2002-05-16 Dürr Dental GmbH & Co. KG Medical, preferably dental, handpiece for treating tissue with preferably high frequency mechanical vibrations
US20050000043A1 (en) * 2003-04-23 2005-01-06 The Procter & Gamble Company Electric toothbrushes
US20060130257A1 (en) * 1996-01-18 2006-06-22 Cann David V Toothbrush with elastomer filled flexible head
WO2007071031A1 (en) * 2005-12-22 2007-06-28 2062745 Ontario Incorporated Ultrasonic toothbrush with irrigation and vacuum
US20090013484A1 (en) * 1995-11-09 2009-01-15 Michael Roberts Gum Massaging Oral Brush
US20090044357A1 (en) * 2007-08-16 2009-02-19 The Procter & Gamble Company Electric toothbrushes
US20100263147A1 (en) * 2009-04-21 2010-10-21 Ranir, Llc Replacement head for electric toothbrush
USD768994S1 (en) * 2015-08-10 2016-10-18 Shannon Guibord All in one toothbrush
USD778056S1 (en) * 2014-07-31 2017-02-07 Sunstar Inc. Electric toothbrush
USD802935S1 (en) * 2016-03-09 2017-11-21 Noksibcho Aloe Co., Ltd. Electric toothbrush
US9929621B2 (en) 2015-03-18 2018-03-27 Ranir, Llc Spring mechanism for power device
US9999486B2 (en) 2015-03-18 2018-06-19 Ranir, Llc Spring mechanism for power device
USD864576S1 (en) * 2017-06-13 2019-10-29 Sage Products, Llc Oral care device
USD874153S1 (en) 2017-11-14 2020-02-04 Sage Products, Llc Oral care device
US10758034B2 (en) 2016-11-14 2020-09-01 Sage Products, Llc Oral care system
US10952833B2 (en) 2013-12-04 2021-03-23 Ranir, Llc Spring mechanism for power device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE539735C (en) * 1930-07-31 1931-12-04 William F Sticht Massage toothbrush
US3335443A (en) * 1967-08-15 Ultrasonic brush
US3375820A (en) * 1965-12-15 1968-04-02 Cavitron Corp Method and apparatus for ultrasonic cleaning of teeth

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3335443A (en) * 1967-08-15 Ultrasonic brush
DE539735C (en) * 1930-07-31 1931-12-04 William F Sticht Massage toothbrush
US3375820A (en) * 1965-12-15 1968-04-02 Cavitron Corp Method and apparatus for ultrasonic cleaning of teeth

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809977A (en) * 1971-02-26 1974-05-07 Ultrasonic Systems Ultrasonic kits and motor systems
USRE28752E (en) * 1971-02-26 1976-03-30 Ultrasonic Systems, Inc. Ultrasonic kits and motor systems
US3760799A (en) * 1972-03-02 1973-09-25 D Crowson Sonic teeth-cleaning apparatus and method
US3840932A (en) * 1972-12-26 1974-10-15 Ultrasonic Systems Ultrasonic toothbrush applicator
US4176454A (en) * 1977-04-25 1979-12-04 Biosonics International, Ltd. Ultrasonic tooth cleaner
US4333197A (en) * 1980-06-02 1982-06-08 Arthur Kuris Ultrasonic toothbrush
EP0174740A1 (en) * 1984-08-14 1986-03-19 Hiroshi Hukuba Electric tooth-brush
US4726806A (en) * 1984-08-14 1988-02-23 Hiroshi Hukuba Electric tooth-brush
US4787847A (en) * 1985-03-26 1988-11-29 The University Of Washington Dental hygiene device
WO1990004950A1 (en) * 1985-03-26 1990-05-17 University Of Washington Dental hygiene device
US4944296A (en) * 1987-08-10 1990-07-31 Hideo Suyama Electronic toothbrush
US5309590A (en) * 1990-12-13 1994-05-10 Gemtech, Inc. Dentifrice/medication dispensing toothbrush
US5476384A (en) * 1990-12-13 1995-12-19 Optiva Corporation Dentifrice/Medication dispensing toothbrush
US5378153A (en) * 1992-02-07 1995-01-03 Gemtech, Inc. High performance acoustical cleaning apparatus for teeth
US5597437A (en) * 1995-01-12 1997-01-28 Procter & Gamble Zero scrap absorbent core formation process
US5695846A (en) * 1995-01-12 1997-12-09 The Procter & Gamble Company Zero scrap absorbent core formation process and products derived from web-based absorbent materials
US8156600B2 (en) 1995-11-09 2012-04-17 The Gillette Company Gum massaging oral brush
US20090013484A1 (en) * 1995-11-09 2009-01-15 Michael Roberts Gum Massaging Oral Brush
US7962992B2 (en) 1996-01-18 2011-06-21 The Procter & Gamble Company Toothbrush with elastomer filled flexible head
US20060130257A1 (en) * 1996-01-18 2006-06-22 Cann David V Toothbrush with elastomer filled flexible head
US8327492B2 (en) 1996-01-18 2012-12-11 The Procter & Gamble Company Toothbrush with elastomer filled flexible head
WO2002038070A1 (en) * 2000-11-09 2002-05-16 Dürr Dental GmbH & Co. KG Medical, preferably dental, handpiece for treating tissue with preferably high frequency mechanical vibrations
US20050000043A1 (en) * 2003-04-23 2005-01-06 The Procter & Gamble Company Electric toothbrushes
US8584299B2 (en) 2003-04-23 2013-11-19 The Procter & Gamble Company Electric toothbrushes
US8955186B2 (en) 2003-04-23 2015-02-17 The Procter & Gamble Company Electric toothbrushes
WO2007071031A1 (en) * 2005-12-22 2007-06-28 2062745 Ontario Incorporated Ultrasonic toothbrush with irrigation and vacuum
US20090226241A1 (en) * 2005-12-22 2009-09-10 Mcewen Mendal Keith Ultrasonic Toothbrush With Irrigation and Vacuum
US20090044357A1 (en) * 2007-08-16 2009-02-19 The Procter & Gamble Company Electric toothbrushes
US20100263147A1 (en) * 2009-04-21 2010-10-21 Ranir, Llc Replacement head for electric toothbrush
US8336155B2 (en) 2009-04-21 2012-12-25 Ranir, Llc Replacement head for electric toothbrush
US10952833B2 (en) 2013-12-04 2021-03-23 Ranir, Llc Spring mechanism for power device
USD778056S1 (en) * 2014-07-31 2017-02-07 Sunstar Inc. Electric toothbrush
US9929621B2 (en) 2015-03-18 2018-03-27 Ranir, Llc Spring mechanism for power device
US9999486B2 (en) 2015-03-18 2018-06-19 Ranir, Llc Spring mechanism for power device
USD768994S1 (en) * 2015-08-10 2016-10-18 Shannon Guibord All in one toothbrush
USD802935S1 (en) * 2016-03-09 2017-11-21 Noksibcho Aloe Co., Ltd. Electric toothbrush
US11291295B2 (en) 2016-11-14 2022-04-05 Sage Products, Llc Oral care system
US12408746B2 (en) 2016-11-14 2025-09-09 Sage Products, Llc Oral care system
US10758034B2 (en) 2016-11-14 2020-09-01 Sage Products, Llc Oral care system
US11889916B2 (en) 2016-11-14 2024-02-06 Sage Products, Llc Oral care system
US11510485B2 (en) 2016-11-14 2022-11-29 Sage Products, Llc Oral care system
USD864576S1 (en) * 2017-06-13 2019-10-29 Sage Products, Llc Oral care device
USD912990S1 (en) 2017-06-13 2021-03-16 Sage Products, Llc Oral care device
USD944016S1 (en) 2017-11-14 2022-02-22 Sage Products, Llc Oral care device with base
USD902602S1 (en) 2017-11-14 2020-11-24 Sage Products, Llc Oral care device and base
USD1015750S1 (en) 2017-11-14 2024-02-27 Sage Products, Llc Oral care device
USD1083394S1 (en) 2017-11-14 2025-07-15 Sage Products, Llc Oral care device
USD874153S1 (en) 2017-11-14 2020-02-04 Sage Products, Llc Oral care device

Similar Documents

Publication Publication Date Title
US3488788A (en) Electric ultrasonic toothbrush
US3335443A (en) Ultrasonic brush
US3828770A (en) Ultrasonic method for cleaning teeth
US3980906A (en) Ultrasonic motor-converter systems
US3636947A (en) Ultrasonic home dental instrument and method
US3375820A (en) Method and apparatus for ultrasonic cleaning of teeth
US3667454A (en) Toothbrush with ultraviolet emitter
US3840932A (en) Ultrasonic toothbrush applicator
US5311632A (en) Ultrasonic plaque removal device
US5150492A (en) Ultrasonic toothbrush
US3466689A (en) Sonic energy dental cleaning device
US4787847A (en) Dental hygiene device
US4176454A (en) Ultrasonic tooth cleaner
US5546624A (en) Apparatus to selectively couple ultransonic energy in a therapeutic ultransonic toothbrush
US3651576A (en) Electroacoustic massager for the gums
US4332558A (en) Dental scaling apparatus
US4236510A (en) Ultrasonic tooth cleaning apparatus
US20060191086A1 (en) Toothbrush employing acoustic waveguide
US7849548B2 (en) Extended reach ultrasonic toothbrush
US3593425A (en) Electric ultrasonic tooth-cleaning apparatus
JP2011512892A (en) Ultrasonic toothbrush with extended reachability with improvements
JP2008539882A (en) Oral hygiene device using acoustic waveguide
WO1998008460A1 (en) Orbitally or reciprocally vibrating method and apparatus for interproximal plaque removal
US3847662A (en) Apparatus and method for sonic cleaning of human teeth
US3941424A (en) Ultrasonic toothbrush applicator