US2006289A - Teeth-cleansing appliance - Google Patents

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June 25, 1935. ANDVlG 2,006,289

TEETH CLEANSING APPLIANCE Filed Oct. 7, 1932 E: IZ'IIIIIIIIIJIL:I:III I Patented June 25, 1935 UNITED STATES PATENT OFFICE TEETH-CLEANSING APPLIANCE Hans Andvig, Oslo, Norway Application October 7, 1932, Serial No. 636,750

In Norway October 13, 1931 v,

1 Claim. (Cl. 15128) The present invention relates to the kind of ized dentifrice may carry some of this material teeth cleansing appliances comprising an atomwith it to the teeth. izer operated by pressure gas such as carbon This chamber may communicate with the pasdi xid sage by means of a branch conduit having a 5 In these devices the atomizer serves to produce valve for controlling the amount of atomized 5 a mixture of gas and dentifrice, which is cond ntifrice Passing through t Same, in Order veyed under pressure to the teeth through a suito re t e Strength o the Solution. able mouthpiece. On the drawing a form of the invention is In order that the mixture of liquid dentifrice illustrated in connection with a known atomizer. l0 and gas (such as carbon dioxide) shall have the I is the atomizer vessel, in which the liquid right effect the jet during use should be directed dentifrice is atomized by means of a gas Such at right angles to the surface of the teeth, and a Carbon dioxide Supp through c du 2, this is often very difficult to attain with the t e supply being eentlolled y means of a Va v known mouthpieces. arran t 3. In accordance with the present invention the The atomized liquid passes through the flexible 15 jet mouthpiece for atomizers is made in the tube 4 to the tooth brush handle 5, which is proform of a tooth brush, having the outlet chan- Vided in a now manner W a passage leading he} placed t right angles t the surface of the to the brush head and which is adapted to be conbrush head which carries the brushes, nected with the flexible tube 4 in a suitable man- Tooth brushes provided with 011 11 1 for her so as to be easily disconnected and replaced. 2 liquid under pressure as well as with a channel Referring more p fi y t0 e figure, the for dentifrice or the like opening in the face f conventional atomizer vessel is shown at I, conthe brush head are known, but the known types taining therein a liquid dentifrice 8 or the like, of tooth brushes have not proved practically useadapted to be atomized. An atomizing gas, such ful, as the conveying of fluid alone through the as carbon dioxide or the like, enters the atomizer g brush head necessitates a, very large amount of through a conduit 2, into a mixing chamber l2. fluid and a very violent action if the velocity of While y v n l yp f valve mechanism the fluid is to be high enough for cleansing purm be mpl y that f h atomizers w poses, which may be purchased on the. open market,

By the u e of tooth brushes of thi ki d i has a trigger 3 pivoted at [5 to the head l6 of 30 connecti n with a atomizer for supplying a the atomizer and contacting with and tending mixt re of a, gas such as rb n di xid d to depress the cooperating head ll! of the valve atomized liquid to the teeth a great advantage Stem H, to which is secured at its inner end, in is obtained in connection with teeth cleansing the m x h m r a v lv y l8. Actuaatomizers, whereas the tooth brush in combination of the trigger 3 Causes the V ve body 8 to 35 tion with an atomized liquid does not have the moved Off Of its Seat, a a t the tension of disadvantages of the tooth brushes which r a spring II, the tension of which latter is shown adapteft carry liquid lon' under pressure as being adjustable by conventional means such has also been uggested t use t kind as a threaded nut 19. When the valve body is 40 of tooth'brush in connection with vessels conmoved off of Seat and the carbon dioxide 40 taming liquid and in which carbon dioxide is gas passes through the conduit 2 into the mixing developed by means of chemicals chamber [2, the dentifrice 8 is sucked up through Even by this arrangement, however, it is not theconduit 9, somewhat in the manner of a Venpossible to produce liquid in finely divided or t t p t i t g ig cthantber Whereatomized form, but practically only a current i 1 1 1 :2. z g gas 45 of liquid, whereby it is made impossible to oby p ese 8 e omlze en 1 nee then passes through the flexible tube 4 to the mm the avantages wmcl} are P m tooth brush handle 5, shown as being hollow at cordance with the present invention.

6, and provided in that recess with a solid soluble In connection with the arrangement in a disinfecting or taste giving material 5. As shown, 50 Mice Wlth the Present inventlon f In some the recess or hollow 6 is filled with solid crystals cases be an ad e to provide In connection of some suitable material. After the atomized w t the Passage for atomized dentifrice a chamdentifrice has dissolved or otherwise absorbed b adapted to Contain a Solid Soluble fect g and entrained a certain quantity of the material or taste giving material in order that the atom- I, it then passes through the conduit l3 with the 56 tooth brush proper, where it exits into the tufts dentifrice. a mouth pieceabaped as a tooth brush or bristles, I and having a passage for conveying the stream I claim: of atomilcd dentifrice and carbon dioxide to an A tooth cleaning appliance, comprising an opening on the surface of the brush head and 5 atomizer containing a liquid dentifrice, a conduit a chamber in the handle of said mouth piece and 5 through which carbon dioxide passes under presthrough which passes said atomized dentifrice sure, means for controlling the amount of carbon and carbon dioxide. the said chamber containing dioxide flowing, a mixing valve by means of which a solid but soluble disinfecting material. the carbon dioxide draws with it and atomises in o finely divided particles a certain quantity of the HANS ANDVIG. 1o

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