US1676601A - Fountain toothbrush - Google Patents

Description

July 1o, 1928. L. C. CAVANAUGH FOUNTAIN TOOTHBRUSH Filed Oct. 23, 1926 Patented July 10, 192s.

,Tfn-mien s'TArs LEO c. CAVANAUGH, or YouNGsrowmforiIo.

. FOUNTAIN' roo'rHBnusH.

Application led October 23, 1926.A Serial No; 143,646.

This invention rela-tes to an improvement in fountain tooth brushes,

The Vobject of this invention i gums.

For thispurpose,

and gums,l which is lantiseptically vself-filled and may be easily and yquickly L;used` for:

rality of outlet'ducts communicating therel with.' Thebrush-hea-d receivesl an enlarged bushing, whichv is secured thereto vand holds a guard'thereagain'st to prevent 'the liquid from the bristles from flowingback- `on the handle of the brush.` A tube is detachably connected withthegflanged bushing and at' its opposite end itextends into a valve casing containing a n b all-valve. This ballvalve operates between the end ofsaid tube and a bushing secured in the opposite side of said valve casing, which latter bushing removably receives' a second tube 'communieating with a' flexible bulb which vis adapted tocontain the liquid used inwashing the teeth. 'i y' y I' l A handle is connected with the lastmentionedtube and with the bulb for holding the brush and pressingor actuating the bulb.

In using the brush, the bulb tube is Withdrawn'from the valve bushingand lowered into the antiseptic liquid vwhile the bulb is contracted and, upon release ofthe bulb, the suction created therein Adraws the liquid up through the tube into 'thebulh- .Said tube isv again yfitted into thevalve bushing andk the brush is ready for use.y Y 'By pressing the bulb,' the liquid is forced therefrom through the tubes and the opening in the brush head into the mouthandv about the teeth and gums. l

yIn the accompanying drawings Fig. 1 is a side elevationof the completel toothbrush;` t. A Y Fig. 2 is an enlargedl vertical section s to provide for the home treatment of pyorrhea, trench mouth, and other diseases of the teeth and a soft, cleansing, and antiseptic brush is provided for the teeth through the control valve, partly'in side ele-Vvy vationp; .4j y d Fig. 31 is a top plan view of the brushhead;f i Fig. 4 is a Avertical section therethrough; Fig.; 5is a horizontal section through *saidV brush-head; andf I e I y l l f Fig. y6 is a''vertical section throughva modified form-of the controlvalve.; v rllhe numeral 1 designates the brush-head having the bristles 2 thereof arranged in sections spaced apart from Aeach other, as clearly lshown in Figs. 1and4. This brush'- head l is provided with a central chamber 3 having ducts. 4 leading downwardly there- Y from. rlfh'e chamber Sis ,enlarged at its rear,v

yend as ,atl5 to receive a flanged bushing'ti.`

Mounted upon they flanged bushing 6 and interposed Vbetween the'flange `of said bushing and the brush-head 1 is a guard 7 which"v depends from 'the brush-head 1to vprevent any liquid from flowing back from the ybrush-head along theH handle ofthe 'tooth brush. ff Y s A tubeS is slidably received` in` the bush- 1ng 6 and hasits opposite end screwsthreaded asf at 9 to screw into a valve casing 10. The extremeend of the tube 8 is in the form of areduced nipple y11 having ynotches 12 formed1 ,infthe sides thereof, as shown in Fig. 2.-;Aduct 13 extends vthrough the valve/casing 10 in communication with' the 4 tube SfandAv this ductfl normally` receives and encloses a ballvalve 11@ A. bushing 15 1s screwed into the opposite end of the duct 13 and.l is provided Y with,4 anj orifice therethrough. from theend thereof in position to be engaged and closed by the ball-valve'lli. Said-ball-valve'11is adapted lto be easily and readily moved fromthenipple 11 to the Yend of the bushing 15.` u y y f A bulb tube 16 is slidablyl and removably fitted kinto thebushing 15 and atits opposite end it is. conected with a flexible .hollow bulb17, communicating with the interior of saidl bulb.Y "A handle'18 is connected with the';bulb tube' 16 and the bulb 17 for handling and operating thebrush.r

In use, the bulb' tube 16 v's withdrawn from'the nipple .11 and dipped into a receptacle' containing' a cleansing or antiseptic fluid, while the bulb 17 is contracted bythe users hand', and the bulb 17 is released while the en d of the tube 16 issubmergedfin said liquid, creating' a suctionr inthe bulb 17.

After beingfilled, the tube 16 is again inserted into the bushing 15 andthe brush is ready'for use. When the bulb'l? is pressed or contracted, the liquid forced therefrom through the tube 16 will force the ballvalve 14 from its seat in the end v'of thebushing 15,

Y and against the nipple 11,to allowithe liquid to flow around the ball-va ve through the notches 12, and the tube8 Einto-the,chamber 3 and through the orifices 4, from where it is discharged into the vbristles ofthe brush or directly onto the users teeth or gums.

The guard 7 prevents any liquid .from

draining or. flowing back rfrom they bristlesl of Vthe brush along the handle. llien the liquid hasbeenforcedout ofthe bulb 17 and the bulb released bythe users hand, the suc# tion created ftherein will-tend to-cdraw the ball-valve14 on to its' seat inthe end ofthe bushing 15 whereA itfcloses communication with the interior of the bulb and tendsto prevent any foreign matter from passing' thereinto, thus keeping the brushl entirely sanitary and clean. n n

The ballwalve shown in Fig. -2 4is automatic in its actuation and may be used if preferred, but instead, a hand actuated valve Vmay be used'in connection with the invention instead of this automatic valve-which '-h'afnd valve is illustrated in F ig. 6. The caising 19 is provided with the duct 20there-- through, communicating with the tubes 8 and 16@ A plunger 21 extends upwardly through the casing 19 and is normallyheld in its upper positionv by a spring 22,-interpose'd between the lower end of the'plunger 21 and ya plug- 23. Theupper end of the plunger 21 terminates in a thumb-piece 24 for forcing the plunger down against the pressure of the structed that it is entirely separate from thev handle of thebrush and this makes it possible to renew the brushhead often'without imposing the expense. of securing lan entirely new brush. i

In fact, the bead will be relatively inexpensive and it is entirely lpossible, toV have threebrush-headsa day, which gives adry, clean brush at all times. The brush is so constructed that it isself-tilling, self-cleansing, and entirely sanitary, and is very simple in construction and operation.

It' desired, the bulb tube 16 may beinserted `directly into theflanged bushing '6 lby close slidable tit for the purpose of1 syringing out the brt'ish-headbeforeor after using,` if

washing it.

v I claim Y 1. A fountain .tooth brush including a brush-headhavingva chamber therein, open- `ings extending outwardly from said chamber, a bushing fitted into the chamber, Y

4a tube having one end thereof connected with said bushing, a valve casing connected with the opposite endl ofs'aid'tube for controlling the passage therethrough', va. second' tube having an end thereof slidablyandl re-V movably received in the opposite side of'said valveA casing, and a'v pressure'bulb for-rel ceiving a liquidconnected with the outer end. of said last^ment-ioned tube yfor receivi-ng fluid-therethroughand forcing said casingy and tubes fluid through the valve into the brushehead.A fi, 1 Y

2. A'fountain tooth brush includi'ng'v'a brush-head 'having the bristles thereof spaced apart to provide'substantiall spaces at intervals thereover, said brush-head having a chamber therein, openingsextendingout# wardly from said chamber adjacent ythe bristles, a. flanged bushing 4fitted intof-'the` chamber, a guardi interposed'between the'A kiiange of the bushing and the head, and 'depending-therefrom'in the directionof the rbristles for prevent-ing back flow ofy aliq-` uid therefrom, a tube connected `with'fthe iianged bushing and extending outwardly therefrom, ay valve casing communicating with said tube, a second vtube slidably'an'd removably connected with said lvalve casing to vbe detached therefrom, apressure bulb connected with the outerend of saidflast mentioned tube, and a ihandle connected with said bulb, sai-d bulb and tube connected therewith being adapted to beremoved from the valve casingfor filling the bulb and re'- inserted 'therein for forcing a liquid from the bulb through the valve casing and tubesv and the openings in the brushhead about' the bristles for cleansing and brushing the teeth.

having a chamber therein,openings ext-endving outwardly from saidfchamber, a bushing fitted into the chamber, 'a tube having an end thereof fitted into the said'bushing, a valve casing connected with the opposite end of said tube, said casing having an opening therethrough, a bushingv fitted into the opposite end of said opening, a ball'valve mounted in the vopening' between theffen'ds of the tube and bushing, and liquid? supply means connected .with the' las'tementioned bushing. y

4. A tooth brush including a hollow brush head,` a tube connected therewith, a valve casing connected with. the tube, said casing having anY opening therein, a source of liquid supply connected with the opening, and

3. A tooth brush including a brush-head,"l

a ball valve mounted in the opening between the ends thereof. Y

5. A tooth-brush including a brush head having discharge orifices therein, a tube 5 having an end thereot` connected with the brush (head, a valve connected with the opposite end of said tube for controlling the vpassage therethrough, a second tube having an end thereof removably received in the opposite side of seid Valve,and a `container connected With the outer end of the last-mein tioned tube for vreceiving fluid to be `forced through the'valve and tubes into the brush head. e

In testimony whereof Ik affix my signature.

LEO C. CAVANAUGH;

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