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Publication numberUS1517320 A
Publication typeGrant
Publication dateDec 2, 1924
Filing dateMar 12, 1923
Priority dateMar 12, 1923
Publication numberUS 1517320 A, US 1517320A, US-A-1517320, US1517320 A, US1517320A
InventorsPendreigh Stoddart John
Original AssigneePendreigh Stoddart John
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Toothbrush
US 1517320 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

LSE 7,320

Dc. 2, E924.

J. P. STODDART TOOTHBRUSH Filed arch 12. 1923 v INVENTOR WITNESS ATTORNEY Patent Bec. 2, 1924.

` sT'Arss PATENT oFFlcE.

JOHN IPENDREIGH STQDDART, OF SALINAS CHACALLUTA, ARICA, CHILE.

TOOTHBRUSH.

AppIication led March 12, 1923. Serial No. 624,558.

their way into the crevices ina manner and with a degree and certainty notpermisslble with an ordinary tooth brush.

In carrying out the invention I preferably construct the brush proper of a plurality of sections mounted for oscillatory movement, said sections simultaneously moving in opposite directions, so that the teeth can be thoroughly cleaned in quick order.

Another important object of the invention residing in providing the handle of the brush with means for actuating the brush or brush sections, so that the brush can be used with the ease and convenience of an ordinary tooth brush.

The nature and advantages of the linvention will be readily understood when the following detailed description is read in connection with the accompanying drawings, the invention residing in the construction, combination and arrangement of parts as claimed.

In the drawings forming part of this application, like numerals of reference indicate similar parts in the several views, and wherein:

Figure 1 is a side elevation of a brush constructed in accordance with the present invention.

Figure 2 is a longitudinal sectional view except that certain of the brush sections are shown in elevation.

Figure 3 is a sectional view taken on the line 3-3 of Figure 2.

Figure 4 is a similar view showing the positions of the adjacent brush sections when the latter are oscillated.

Referring to the drawings in detail, it will be noted that the handle of the brush is hollow for a portion of its length, the hollow portion being indicated at 10, and extended to provide a terminal loop 11. The handle projects from one end of an elongated frame like member including spaced parallel sides and end members 12 and 13 respectively and in this frame operates` the brush proper above referred to.

The brush is preferably made up of a plurality of sections which are arranged in face to face contact and mounted on a sha-ftv for oscillatory motion. Each brush section includes a head 14 having an opening 15 to actuate an eccentric 16 mounted upon the shaft above mentioned. This shaft 1s journalled in the end members 13 of the elongated frame, and includes a squared portion 17 arranged in saidframe and a tubular portion 18 arranged in the portion 10 of the handle. The squared portion 16 supports spaced washers 19 between which the brushsections are grouped, a coiled spring 2U surrounding one end of the shaft and eX- erting a pressure againstthe adjacent washer 19, so that the brush sections are all held operatively associated upon the shaft. There is of course one eccentric 16 for each brush section, and each eccentric has a squared opening to accommodate the squared portion17 of .said shaft. It will be noted, however, that the eccentrics are oppositely disposed alternately, so that the bristles 21 of every other brush section projects beyond the terminals of the bristles 22 of the other sections. The construction and arrangement of these parts is such that when the shaft referred to is partially rotated in reverse directions, the alternate brush sections are oscillated simultaneously in opposite directions, the relative positions of the adjacent brush sections under these circumstances being illustrated in Figure 4. Upon inspection of Figures 3 and 4, it will-be observed that the inner surfaces of the parallel sides 12 of the elongated frame are bevelled outwardly toward its upper and lower edges, thereby defining what I term a fulcrum point 23, adapted to be engaged by the heads 14 of the respective brush sections, to limit the'oscillatory movements of said sections, and to incidentally' impart to said sections a slightly pivotal movement with relation to the shaft and the eccentrics supported thereon. The brush sections are adapted to be moved vertically over the teeth, incident to the operation of the shaft, and in this manner find their way into the crevices to thoroughly clean the teeth. This can be accomplished in quick order due to the fact that the brush sections osclllate or move in op posite directions. When the brush is not in use, the bristles are arranged Within a jcap or housing 24 which is pivoted as at 25 upon the handle and held in normal position by its association with the outermost end member 13 of the said frame in the manner illustrated in Figure 2.

l/lhile the shaft may be rotated in any suitable manner ier the purpose intended, l preferably provide means which are mounted upon the handle, so that the brush can be manipulated in a very easy and convenient manner, theV means includingy a sleeve 27 which is lrnurled and journalled on lthe handle as illustrated in' Figure 2., This sleeve is provided with an internalv gear 28 which meshes with a small gear 29 carried by the shaft 18, and manifestly by rotating the sleeve, similar motion is imparted to the shaft to actuate the brush sections as stated.,V

While it is believed that *from the foregoing description, the nature and advantages of the invention will be readily apparent, l desire to have it understood that l do not limit rnyseli= to What is herein shown and described and that such changes may be resorted to `when desired as fall Within the scope oi what is, claimed.

Having thus described the invention, l claim:

l. A teeth brush including a handle, a brush comprising a plurality of sections mounted for oscillating movement simultaneously in opposite directions, and means for simultaneously actuating the brush sections.

2. A tooth brush including a handle, a frame, a brush including a pluralityg of sections arranged Within the frame and mounted for oscillating movement, and means for oscillating alternate sections simultaneously inopposite directions. v

3. A tooth brush including' a handle, Aa frame like portionv arranged Dat one end thereof, a shaft journalled in the handle and frame, a plurality of brush sections arranged Within said frame and mounted on said shaft for oscillatory movement, incident to the rotation of said shaft, means for rotating l cillating alternate brush nerves@ said shaft, and means for simultaneouy osdirections,

l. A tooth brush including a handle, a frame like portion atv one end thereof, a shalt journalled in the handle and having a squared portion arranged in the iframe, escentrics carried by the squared portion ci said shaft, a plurality of brush sections arranged Within the trame, each section including a head having an opening to receive one ci said eccentrics, vvhereby said brush sections are oscillated incident to the rotation oi the shalt, and means for rotating said shaft.,

5. A tooth brush including a handle, la

trame like portion at one end thereof, a F

shait'journalled vvithin the handle and having a portion arranged Within the frame, a plurality or brush sections arranged vrithin 'the trarne and supported by the shalt, each section including a head having an opening an eccentricv :tor each head and arranged upon the shalt and received Within the opening ci" said head, said eccentrics being alternatelv arranged in reverse positions Whereby said brush sections are oscillated incident to the rotation oi the shalt and simultaneously moved in opposite directions.

t. A tooth brush including a handle, a trame like member at one end thereof, a shaft journalled in lthe handle and having a portion arranged in said frame, a plurality of brush sections arranged Within the frame and receiving; said shaft, and means for oscillating said brush sections, and simultaneously moving the latter in opposite directions incident to the rotation of the shaft, a pivoted cap arranged at one side of the frame and adapted to normally receive the bristles of the' brush, a sleeve rotatably mounted on the handle, an internal Vgear carried by the sleeve, and a small gear carried by the adiacent end of the shalt and meshingI with the internal gear whereby the rotation oi the shaft iscontrolled by said sleeve.

ln testimony whereof llama mv signature.

JOHN PENDREIGH STODDART.

sections in opposite 'lll

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2601567 *Oct 6, 1947Jun 24, 1952Josef Steinberg LeonManually driven toothbrush
US4827550 *May 4, 1988May 9, 1989Dental Research CorporationRemovable head mechanism for automatic cleaning device
US5077855 *Jun 5, 1990Jan 7, 1992Emilio AmbaszMotor-driven toothbrush
US5259083 *Sep 24, 1992Nov 9, 19931008335 Ontario Inc.Mechanical toothbrush
US5357644 *Aug 2, 1993Oct 25, 1994Theriault Bertrand RAdjustable toothbrush
US5613259 *Apr 18, 1996Mar 25, 1997Teledyne Industries, Inc.High frequency electric toothbrush
US5974613 *Apr 22, 1997Nov 2, 1999Braun AktiengesellschaftBrush section for an electric toothbrush
US6289546Mar 29, 1999Sep 18, 2001Stephen D. HaradaToothbrush and method of fabricating same
US6821119Jul 12, 2002Nov 23, 2004Water Pik, Inc.Dual motor oral hygiene device
US6920659Jan 12, 2002Jul 26, 2005Water Pik, Inc.Toothbrush
US6952854Aug 27, 2004Oct 11, 2005The Procter & Gamble CompanyComplex motion toothbrush
US6955539Jan 10, 2003Oct 18, 2005Water Pik, Inc.Characterization of motion of dual motor oral hygiene device
US7124461Aug 30, 2004Oct 24, 2006The Procter & Gamble CompanyComplex motion toothbrush
US7198487Dec 31, 2003Apr 3, 2007Water Pik, Inc.Whitening tip for dental flossing device
US7421753 *Apr 25, 2006Sep 9, 2008The Procter And Gamble CompanyElectric toothbrushes
US7451514Aug 29, 2006Nov 18, 2008The Procter & Gamble CompanyComplex motion toothbrush
US7636976Jul 20, 2006Dec 29, 2009The Procter & Gamble CompanyPower toothbrush
US7640614May 8, 2007Jan 5, 2010The Procter & Gamble CompanyMulti motion toothbrush
US7640615Jul 14, 2006Jan 5, 2010The Procter & Gamble CompanyElectric toothbrushes
US7698771Dec 17, 2004Apr 20, 2010The Procter & Gamble CompanyElectric toothbrush
US7725973Aug 16, 2007Jun 1, 2010The Procter & Gamble CompanyElectric toothbrushes
US7761947Feb 21, 2006Jul 27, 2010The Procter & Gamble CompanyComplex motion toothbrush
US7810201Dec 3, 2007Oct 12, 2010Braun GmbhToothbrushes
US7832042Nov 4, 2008Nov 16, 2010The Gillette CompanyBrush head for toothbrush
US7861348Dec 7, 2005Jan 4, 2011The Procter & Gamble CompanyElectric toothbrushes
US7861350Dec 11, 2009Jan 4, 2011The Procter & Gamble CompanyMulti-motion toothbrush
US7917984Dec 14, 2009Apr 5, 2011The Procter & Gamble CompanyElectric toothbrushes
US8032964 *Jan 31, 2008Oct 11, 2011The Gillette CompanyBrush section for an electric toothbrush
US8096011Dec 16, 2010Jan 17, 2012The Procter & Gamble CompanyElectric toothbrushes
US8281443Dec 9, 2010Oct 9, 2012The Procter & Gamble CompanyMulti-motion toothbrush
US8370984 *Sep 13, 2011Feb 12, 2013Braun GmbhBrush section for an electric toothbrush
US8683639 *Apr 26, 2010Apr 1, 2014Diastam LtdMechanical toothbrush and drive mechanism therefor (embodiments)
US8707496 *Jan 8, 2013Apr 29, 2014Braun GmbhBrush section for an electric toothbrush
US8943634May 2, 2012Feb 3, 2015Water Pik, Inc.Mechanically-driven, sonic toothbrush system
US20120000023 *Sep 13, 2011Jan 5, 2012Mark Edward FarrellBrush Section For An Electric Toothbrush
US20120042459 *Apr 26, 2010Feb 23, 2012Vladimir Nikolaevich KhudoleyMechanical toothbrush and drive mechanism therefor (embodiments)
USRE35941 *Nov 2, 1995Nov 3, 1998Pulse Innovations, Inc.Mechanical toothbrush
WO1994006371A1Aug 16, 1993Mar 31, 1994Dentatech CorpMechanical toothbrush
WO2002082947A1Apr 10, 2002Oct 24, 2002Coronet Werke GmbhBrush
Classifications
U.S. Classification15/22.1, 15/26
International ClassificationA61C17/16, A61C17/24
Cooperative ClassificationA61C17/3418, A61C17/349
European ClassificationA61C17/34A1, A61C17/34B