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Publication numberUS3685080 A
Publication typeGrant
Publication dateAug 22, 1972
Filing dateAug 28, 1969
Priority dateAug 28, 1969
Publication numberUS 3685080 A, US 3685080A, US-A-3685080, US3685080 A, US3685080A
InventorsHubner Otto
Original AssigneeHuebner Otto
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Mechanically powered toothbrush
US 3685080 A
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Description  (OCR text may contain errors)

[ 1 Aug. 22, 1972 United States Patent Hubner 3,466,689 9/1969 Aurelio et a1. .......,.....15/22 R FOREIGN PATENTS OR APPLICATIONS Otto Hubner, Gruntal 33, Munich 27,Germany 1,133,470 11/1956 France...........................15/23 1,216,838 11/1959 l5/22R France...........

[22] Filed: Aug. 28, 1969 [21] App1.No.: 853,679

Primary ExaminerEdward L. Roberts A!t0rneyKenneth S. Goldfarb [57] ABSTRACT An electrically powered mechanical] toothbrush comprising an elongated y driven {58] Field of Search....... 15/22 R, 22 A, 22 C, 23, 24,

preferably cylints, one for batteries, the other for the motor. The toothbrush shank is secured to the motor section while a switch physically drical thin casing formed in two par [56] References Cited UNITED STATES PATENTS 1 6 v .m .wm mm fl n w m m men 8 s H me 2 .me .m a 3 mb me m nf t 4 .mm m mm m mm C bm 1 e 6 m S 6.6 m m P 0 mo R X ZWU QI U32 .2 u m y 1 b m Uaa HTG 5007 660 999 111 532 1 6.-. a B 1M1 k 1 n z ll. .bllllllll'llv1lllllllll'lllilII-lllll PATENTEDwszz I972 In I.

MECHANICALLY POWERED TOOTI-IBRUSI-I The invention relates to a mechanically powered toothbrush.

Such toothbrushes with a casing having a diameter of approximately 35 mm are known. Such toothbrushes are of the type disclosed in my US. Pat. No. 3,183,538 issued May 18, 1965 for PORTABLE ELECTRIC TOILET APPARATUS. These casings which serve as handles are difficult to hold and manipulate, especially for children, limiting their pleasure and effective use of the toothbrush. Further, these casings are not cylindrical in shape and have discomforting projections. However, in order to ensure an optimal care of the teeth, it is of great importance that the use of mechanically powered toothbrushes be started at an early age. It is therefore an object of the invention to improve the easy handling of such toothbrushes.

To solve this problem, the driving elements of the toothbrush, according to the present invention, are disposed inside of a thin casing of a substantially cylindrical shaped construction having an outer diameter of at most 26 mm or, alternatively, the driving elements are disposed inside of a thin casing of an oval tubular construction having an outer diameter of at most 28 mm. Consequently, the thin shape of the toothbrush approximates the handle of a normal toothbrush and easy handling is considerably enhanced.

Moreover, the thin toothbrush weighs less than conventional electrically powered toothbrushes, which also contributes to easy handling thereof.

The relatively long length of the handle must be considered advantageous since, according to a further embodiment of the invention, the on and off switch separates the length of the casing in a ratio approximately 1:2 and is disposed laterally to the brush.

The easy handling of the device is especially significant when one considers that the electric toothbrush is a relatively little used appliance. The dislike for an unknown appliance disappears the faster, the better the appliance fits into the hand and the simpler it is to handle.

In the drawing there are shown schematically two modifications of the invention, namely:

FIG. 1 is a partial longitudinal sectional view of an electric toothbrush according to the concepts of the present invention;

FIG. 2 is a transverse sectional view of the toothbrush in the plane of line 22 in FIG. 1;

FIG. 3 is a transverse sectional view of the casing taken along the plane of line 33 in FIG. 1; and,

FIG. 4 is a transverse sectional view of another embodiment of casing.

With continuing reference to the accompanying drawing, wherein like reference numerals designate similar parts throughout the various views, in casing l of an electrically powered toothbrush according to the invention there is disposed an electric motor 2 which is connected to batteries 3. Two penlite sized batteries can be used. On shaft 4 of the motor 2 there is secured an eccentric disc 5, which when switched on produces vibrations. The vibrations are transferred to brush handle 6 provided with a brush head 7. The brush handle 6 is screwed into threaded recess 8 of the casing l. The recess 8 is immediately adjacent that eccentric disc 5. A thin wall 28 separates in a fluid proof manner the shank 6 of the toothbrush from the electric motor.

Between the motor 2 and batteries 3 there is disposed an on and off switch 9 which is actuated transversely to the longitudinal axis of the casing l.

The on and off switch 9 consists of two ringshaped sockets 10, in which two contact springs 11, 12 are secured and in which a transversely displaceable pin 13 is accommodated. Contact spring 11 is electrically conductively connected with the motor 2, and the other contact spring 12 with the batteries 3.

The pin 13 is provided from one end thereof up to its center with an insulating jacket 14 and at the connection to jacket 14 with an annular groove 15.

When the pin 13 is displaced by means of the elastic cover l6, 17 which closes the casing I in the area of the on and of switch 9, the contact springs ll, 12 move from the insulating jacket 14 into the annular groove 15 and thereby switch the motor 1 in or out of the annular groove 15 onto the jacket 14. In this position the toothbrush is disconnected.

The casing 1 consists of two parts. In the part closer to the brush are mounted the motor 1 and the switch 9, in the other part are disposed the batteries 3 inside of the jacket 18, which is clamped over an elastic, convex disc 19 between switch 9 and the bottom of the casing l and laterally by means of an elastic ring 20. At the bottom of the jacket 18 there is provided a spiral spring 21 which presses the batteries 3 against a contact 22 of the switch 9.

The switch 9 separates the length of the casing in a ratio 1:2 approximately and is mounted on the brush side.

The casing 1 has an annular cross section (FIG. 4) with a diameter of approximately 23 mm. It is especially suitable for the mounting of motors with attached eccentric weight disc as well as for other equipment for producing vibration or oscillation movements.

Another electric toothbrush, driven, for example, by a non-illustrated oscillating lever motor, has an oval casing 23 with a diameter of maximum 28 mm.

Iclaim:

l. A mechanically driven toothbrush comprising an elongated tubular relatively thin casing having a maximum outside diameter of 28 mm, said casing being fonned in two sections having the same diameter and detachably secured to each other, a motor in one of said sections, the other of said sections being substantially twice the length of said one section, means for causing vibrations drivingly connected to said motor disposed in said one section, a toothbrush shank detachably secured to said one section, batteries in said other section, and switch means mounted in said one section and having contact means extending into said other section for selectively electrically operatively connecting said motor to said batteries, said switch means being disposed and extending between said motor and said batteries, said switch means extending transversely of said casing and being mounted on the sides of the casing and being selectively actuable from both sides of said casing, said contact means including a pair of contact springs connected respectively to said motor and said batteries, said switch means including a displaceable pin, said pin having an insulating jacket thereon and an annular groove therein, said casing having elastic covers on opposed sides thereof, said pin being engageable by said covers and being movable diametrically of said casing to selectively engage said contact springs in said groove and with said insulative jacket to respectively complete and break an operative electric circuit from said batteries to said motor.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5247218 *Jun 10, 1992Sep 21, 1993Sven J EricHand held vibrating instrument
US5265299 *Jul 15, 1991Nov 30, 1993Huang Feng CStructure for an electro-motive tooth brush
US5311632 *May 12, 1993May 17, 1994Center Leslie TUltrasonic plaque removal device
US5421726 *Dec 13, 1993Jun 6, 1995Okada; EijiTooth-brushing method by an electric toothbrush having a predetermined vibration frequency
US5471695 *Aug 31, 1994Dec 5, 1995Aiyar; SanjayMotorized brush
US5572762 *May 12, 1994Nov 12, 1996Scheiner; JonathanToothbrush with sound generator
US5590434 *Jun 6, 1995Jan 7, 1997Kitano Co., Ltd.Electric toothbrush
US5651157 *Sep 17, 1996Jul 29, 1997Rowenta Werke GmbhElectric toothbrush with vibration
US5706542 *May 31, 1996Jan 13, 1998Okada; EijiElectrically driven toothbrush
US5822821 *Jan 12, 1996Oct 20, 1998Pentalpha Enterprises Ltd.Electric toothbrush
US5823844 *Aug 17, 1994Oct 20, 1998Markowitz; EliInteractive vibrating toy
US5987681 *Dec 31, 1997Nov 23, 1999Rowenta -Werke GmbhElectric toothbrush
US5998965 *Apr 13, 1998Dec 7, 1999Conair CorporationDirect plug in power tool using single pair of contacts for both AC and DC currents
US6421865 *Oct 25, 2000Jul 23, 2002Mcdougall Gregory JohnElectric toothbrush
US6735804Jan 10, 2002May 18, 2004Conair CorporationToothbrush bristle disk
US6802097Mar 11, 2002Oct 12, 2004Trisa Holding AgToothbrush having a vibrating head part
US7003839Aug 9, 2004Feb 28, 2006Trisa Holding AgInterdental treatment device with vibrating head part
US7240390Dec 13, 2002Jul 10, 2007Trisa Holding AgPersonal hygiene device
US7254858Mar 7, 2006Aug 14, 2007Trisa Holding AgInterdental treatment device with vibrating head part
US7261851Oct 7, 2005Aug 28, 2007Trisa Holding AgPersonal hygiene article with vibrating part and method
US7409741Jun 24, 2003Aug 12, 2008Dworzan William SToothbrush with tuned vibrating head
US7556320Jul 13, 2007Jul 7, 2009Trisa Holding AgPersonal hygiene article with vibrating part and method
US7713461May 23, 2007May 11, 2010Trisa Holding AgProcess for producing an oral care device
US7748071Jan 9, 2009Jul 6, 2010Trisa Holding AgPersonal care article with vibrating head part
US8015649Jun 3, 2010Sep 13, 2011Trisa Holding AgPersonal care article with vibrating head part
US8250763Feb 18, 2010Aug 28, 2012The Gillette CompanyBattery-operated razor
US8302316Mar 22, 2012Nov 6, 2012The Gillette CompanyBattery-operated razor
US8307488Mar 26, 2010Nov 13, 2012Trisa Holding AgOral hygiene device
US8327490Jul 29, 2011Dec 11, 2012Trisa Holding AgPersonal care article with vibrating head part
US8398326Mar 4, 2010Mar 19, 2013Colgate-Palmolive CompanyFluid dispensing oral care implement
US8496393 *Jul 7, 2010Jul 30, 2013Bruce MartinRefillable toothpaste dispensing toothbrush
US8506196Feb 26, 2010Aug 13, 2013Colgate-Palmolive CompanyFluid delivery system for an oral care implement
US8517728Jan 24, 2007Aug 27, 2013Colgate-Palmolive CompanyOral care implement having fluid delivery system
US20090247915 *Mar 30, 2009Oct 1, 2009Ethan Frederic ImbodenPersonal vibrator with replaceable motor
US20100272500 *Jul 7, 2010Oct 28, 2010Bruce MartinRefillable Toothpaste Dispensing Toothbrush
US20110041268 *Feb 17, 2009Feb 24, 2011Omron Healthcare Co.,Ltd.Electric toothbrush
US20120186029 *Jan 25, 2012Jul 26, 2012The Fuller Brush CompanyMotorized Cleaning Brush
US20120251975 *Jun 7, 2012Oct 4, 2012Omron Healthcare Co., Ltd.Oral care apparatus
CN1739464BOct 18, 2000Jun 19, 2013特里沙控股公司Toothbrush with vibrating head part
EP1221906A1 Oct 18, 2000Jul 17, 2002Trisa Holding AGToothbrush with vibrating head part
EP1561435A1 *Oct 18, 2000Aug 10, 2005Trisa Holding AGToothbrush with mechanical vibrating device
WO1980001533A1 *Feb 1, 1980Aug 7, 1980F FischerElectrical apparatus for cleaning the teeth
WO1984003051A1 *Feb 1, 1984Aug 16, 1984Amiga CorpControl unit for video games and the like
WO1996006546A1 *Aug 24, 1995Mar 7, 1996Sanjay AiyarMotorized brush
WO2001028452A1 *Oct 18, 2000Apr 26, 2001Trisa Holding AgToothbrush with vibrating head part
WO2006019289A1 *May 4, 2005Feb 23, 2006Flores Jorge SedanoIntegral toothbrush
WO2008091935A2 *Jan 23, 2008Jul 31, 2008Colgate Palmolive CoOral care implement having fluid delivery system
Classifications
U.S. Classification15/22.1, 200/538, 310/81
International ClassificationA61C17/34, A61C17/16
Cooperative ClassificationA61C17/3481
European ClassificationA61C17/34A8