US1858056A - Dental apparatus - Google Patents

Description

May l10, 1932. A, F, P|EPER 1,858,056

DENTAL APPARATUS Filed July 2, 1928 2 Sheets-Sheet l May l0, 1932. A. F. PIEPER 1,858,056

DENTAL APPARATUS Filed July 2, 1928 2 Sheets'-Sheet 2 INVENTOR B: :ms er @ATTORNEYS Patented May l0, 1932 ALPHONSE E. rlErnn, orV EocHEs'rEE, NEW Yom:

'DENTAL APPA'EA'rU-s;

Application leiJuly 2,1928. Serial No. 289,744.

A The present invention relates to dental apparatus and more particularly to a mouth spraying device or the like, to be used fpr example by the dental profession in spraying or flushing the mouth of the patient, as required under different conditions in-the treatment or care of the teeth. One object of the inven tion is to provide an improved device of this class which will be highly efficient and convenient to operatel A further object is to provide improved means for controlling the flow both of a cold and a warm supply of liquid or fluid-to be employed in the spraying operations.'` U

A further object is to provide improved `means for maintaining the spray head with the nozzle thereon in fixed relation with respect to the fluid container when not in use whereby to insure the discharge of all drip- 'i pings from the nozzle into a receptacle associated with or supported by the container.

To thesev and otherends the invention resides in certain improvements and combinations of parts, all as will be hereinaftermo're fully described, the .novel features being pointed out in the claims at the end of the speciiication. Y

In the drawings:

Figfl is a view in elevation of a spraying device constructed lin accordance with vthe invention and including a heating -unit for the liquid;

Fig. 2 is an elevation as viewed from the `right of Fig. 1 with the heating unit re- .moved;

Fig. 3 is a fragmentary sectional elevation showing the valve arrangementfor control ling the discharge both of warm and cold water Asupplied to the spray head;

Fig. 4 is an enlarged transverse section taken on line 1a-4a of Fig. 3 with the valvel in position to connect the liquid holding container with the spray head;

Fig. 5. is a similar section with. the valve shown in closed position;

Fig. 6 is a top plan view of the device shown in Fig. 2 with the spray head removed from its support; I

Fig. 7 is a sectional elevation taken on line -supplied inthe form of a spray arm, and

F1g. 9 is a side view ofthe head shown removed from the casing.

Similar reference numerals -throughout the several views indicate the same parts.

In the practice of dentistry, it is frequently necessary when filling, the teethto flush or cleanse the mouth with a suitable fluid or liquid which ispreferabl ut whic may be merely astream of liquid delivered under suitable pressure. In apparatus 'of this kind, it is desirable to provide for the use of both a cold and a warm stream of fluid or liquid since both may be required under vvarying conditions of treatment. Water or other liquid may be used in flushing` or cleansing the mouth and the present apparatus is designed in a manner to permit of a quick change from liquid of one temperature to that of another whenever desired.

Referring to the drawings, 10 represents an electrical heating unit-comprisinga receptacle preferably containing a heating coil and athermostatic control device, not shown, for regulating the degree of heat required -sagesvl and 16, Figs. 6 and 7. A pipe 17 within the container communicates with the inlet passage 15 and discharges at a point adjacent the bottom of the container. A supply pipe or conduit 18 leads to the passage 15 of the tubular projection 13 and is adapted for connection with a suitable liquid supply source, not shown, such for example as the usual water supply whereby the liquid is delivered to the container under pressure. Connected with the tubular projection lfi is a valve casing 19 in which a two-way valve is provided for connectin either the cold orwarm water supply wlth the spray or nozzle head, as will appear hereinafter, itI

being understood that the c old water does pulling or treating not pass through the container but throughl a separate conduit leading from a supply source under pressure to the valve casing. The casing 19 carries a vertically disposed tapered valve 20 fitting in a correspondingly tapered bore in the casing as indicated in Fig. 7. The valve has an operating stem 21 projecting through a nut 22 screwed into the upper end of the casing and serving'to compress the packing 33 which is supported by a plate 34 seated on a shoulder 35 of the casing. A spring 36 is interposed between the platev and valve for holding the latter upon its seat. The valve is moved to its dierent positions of adjustment by a handle 37 on the upper end of the stein 21. The valve casing is provided with and is preferably supported by a lateral extension 38 threaded into the tubular projection 14 on the container cover 12. A passage 39 in the valve casing communicates with the outlet passage 16 of the container, as shown in Fig. 6. The valve is provided with a central chamber 40 having a laterally extending inlet port 41 communicating with the container through passages 16 and 39 when the valve is linthe positipn shown in Fig. 4.

The cold water supply pipe or iexible conduit 42 is connected with the bottom of the valve casing and communicates with the ports 43' and 44 of the casing, as best shown in Fig. 3.

The flexible conduit 45 which, under certain conditions, forms a continuation of the conduit 42 leads from the valve casing and is provided at its outer end with a spray headV hereinafter described. The inner end of conduit 45 is connected with a tubular member 47 which preferably has its upper end reduced and threaded into the lower end of the valve casing 19 for free communication with a transverse passage 48 in the latter which in turn connects with the central chamber 49,- at all times in communication with the passages 40 and 41 of the valve 20. A suitable lilter 50 is supported within the tubular member 47 for ltering both the warm and cold Water admitted to the ilexible conduit 45.

The valve casing 19 is provided at its upper end with a semi-circular shel-likeportion 51 on which is disposed a plate 52 having upwardly projecting stop pins 53 in the path of the valve handle 37 and by which movement of the latter is limited to its extreme positions of adjustment. The plate 52 has applied thereto the words Cold, Tepid and Oi, as shownin Fig. 6 for* indicating the positions to which the handle 37 is moved in order that the vvalve will be in positionV to permit either the cold or warm water to be used or the cutting off ofthe supply of both to the spray head. For example, with the valve in the position shown in Fig. 4, warm water under the pressure in the system will flow from the container through pas- .sages 16 and 39 and thence through passages 41 and 40 of the valve, downwardly through chamber 49 and passage 48 into the container 47 and through the i'lter 50 into the flexible tube or conduit 45 leading to the spray head. If, on the other hand, thc valve is in the position shown in Fig. 3, the warm water supply will be cut ofi' and cold water will then iiow through pipe 42, passages 43 and 44 and thence through the passages 4l and 40 of the valve and downwardly through therefrom regardless of the fact that the valve 20 may be in position to admit either cold or warm water yto the iieXible conduit 45. The valve within thecvlinder 46 is operated by pressing the pivoted handle 54 inwardly toward the cylinder 46 at which time the iuid under pressure will flow through the head 55 ofthe cylinder and through the nozzle pipe 56 attached thereto all of which may be termed the spray head.

The spray head when not in use is supported 'by an arm 57 rigidly connected with the container in any suitable manner but preferably connected with the cover 12 by a screw 58 extending through the inner end 59 of the arm and threaded into the cover, as shown in Fig. 7.1 The end 59 of the arm rests upon an upwardly projecting annular boss 60 into which extends a closely fitting projection 61 on the portion 59 of the arm. A dowel pin 62 serves to prevent turning of the arm 57 about the axis of the screw 58- whereby the arm is rigidly held in the positionshown in Fig. 6. The outer end of the arm is forked to receive the cylinder head 55, as best shown and the supply conduit 45 connected therewith are supported, as shown in Fig. 2. The prongs of the fork at the outer ends are provided with upwardly projecting portions 66 which engage-the head 55, as shown in Figs. l and 2, to prevent outward displacement of the same upon the arm. With this arrangement, -it is necessary to liftthe valve casing or cylinder 46 a slight amount before the head 55 with the nozzle thereon can be removed from the fork of the arm.

The cover 12 has a centrally disposed cupshaped recess 67 formed therein to catch any drippinvs that may discharge from the nozzle whic will be uickly evaporated by the heat supplied by t e, water within the container 11.l The outer end of the nozzle overlies the recess 67 and is fixed relative thereto, since the head 55 is prevented from turning, as described above. Consequently, with the nozzle returned to the position shown in Fig. 2, all drippings therefrom will be discharged into therecess of the cover.

In the operation of the present device, the handle 37 will first be moved to the desired open position, depending on whether or not warm or cold water is to be used. When this has been done, it is only necessary to remove the spray head from the arm 57, place the nozzle in the patients mouth and open the outer control or nozzle valve by pressing inwardly on the handle 54. Upon release of the handle, the valve will be automatically closed and the spray head may then be returned to the normal inoperative position, shown in Fig. y2.

From the foregoing, it will be seen' that a selective valve is provided for controlling the supply of warm or tepid water heated within the container as well as the independent supply of cold water'which does not pass through the container. course, independent of the spray head'or nozzle valve and may be closed to prevent either the cold or warm Water from lowing thereto.

The advantage in securing the supporting arm for the spray head agamst movement is that the nozzle when not in use is always held in the same position over the drip cup or receptacle and at sucha point as not to interfere with the turning of the valve handle 37 to either of its three positions of adjustment.

I claim as my invention: y

1. In a device of the class described, a closed container having inlet and outlet passages for fluid under pressure, a valve casing connected with the outlet passage of the container, a flexible tube connected with the casing and having a'nozzle on its outer end provided with a self closing valve, asupply conduit connected with said inlet passage and independent of said ilexible tube, a second supply conduit connected with the casing and a valve within the casing between the ends of said tube and the second supply conduit adapted in one position to establish communication between said ends while closing said outlet passage and in another position serving to close the second supply conduit and to establish communication between the tube and outlet passage of the container.

2. In a device of the class described, a

This valve is, ofv

closed container having an inlet for fluid under ressure and an outlet, a valve casing a `iiuid supply conduit connected -with the valve casing, a flexible tube leading from the valve casing having a nozzle at its outer end, a valve withinv the casing adapted in one position of adjustment to establish communication between the container outlet and said tube and serving in another position of adjustment .to close the outlet and to establish attac ed tothe outlet side of the container,

communication between the supply conduit outlet, a valve within the casing, a supply I pipe connected with the valve casing, a ilexible tube connected with the casing and having a nozzle on its outer end, said valve being arranged in one position to establish communication'between the container outlet and said flexible tube and serving in another position to close the container outlet and to establish communication between said flexible tube and the supply pipe, and a supporting member for the nozzle connected with the container. j

4. In a dental spray, the combination of a container provided with an inlet and an out! let for fluid under pressure, a valve casing disposed at one side of the container and connected with said outlet, said casing having a iiuid inlet passage for connection with a sup ply conduit and also having a discharge passage for communicationl with a discharge conduit and a valve in said casing adaptedA in one position to connect said container outlet withrsaid discharge passage and serving in another position to close the container outlet and to connect the inlet passage of the casing with the outlet passage thereof.

5. In a dental spray, the combination of a container having a closure thereon provided with inlet'and outlet passages for fluid under pressure, a valve connected with said outlet passage, a. supply pipe independent of said inlet passage, alexible tube leading from said valve and having a nozzle thereon, said valve being adjustable to close said outlet passage and to establish communication between said tube and supply pipe, a receptacle` formed in said closure for receiving the drip from the nozzle and an arm connected with the closure and arranged to support the nozzle with its discharge end over the receptacle.

6. In a dental spray, a container having inlet and discharge passages for fluid under zle on the outlet conduit, a valvev within the casing having three positions of adjustment,

in on-epof which it connects the outlet conduit with 'said discharge assage and in another of which it closes t e outlet passage and connects the inlet and outlet conduits and :.:ervingin the third position to close the disterposed between said outlet and the inner end of the flexible tube for establishing communication between the same, said valve being adapted in one position to close the outlet and to establish communication between said tube and conduit, a support on the container forthe nozzle independent of said valve anda control valve for the nozzle interposed between the latter and the rst mentioned valve.

8. ln` a dental spray, the combination of hold the nozzle in lixed relation above the container, a receptacle on the upper end of the container for receiving the drippings from the nozzle and valve means independent tof'lsaid arm for controlling the flow of liquid -through said tube.

11. Ina dental spray, the combination of a container having a closed chamber for holding liquid under pressure and provided with an outlet, an electrical heating unit disposed externally of the chamber and arranged to heat the liquid therein, means for connecting the chamber with a supply of liquid under pressure, a iexible conduit connected with said outlet, a nozzle carried by said conduit, a supply conduit connected with said leX- .ible conduit, and a control valve arranged in one position to establish communication between said outlet and flexible conduit and to close said supply conduit and operating in another positionto establish communication between said flexible and supply conduit members and to close said outlet.

' ALPHONSE F. PIEPER.

a closed container having an inlet for fluid under pressure and an outlet, a flexible tube having a nozzle on its outer end, a valve in- Y terposed between said outlet and the inner end of the flexible tube for establishing communication between the same,'a fluid supply g conduit leading to said valve, the latter serving to closethe outlet and to establish communication-between said conduit and said tube, a support on the container for the nozzle and a' control valve for the nozzle interposed between the latter and the first mentioned valve.

9. In a dental spray, the combination 0f a Huid container having inlet and outlet passages or fluid under pressure, a valve, supl ply and discharge tubes leading to and from the valve, said valve in one position serving to close the outlet passage and to establish communication between said tubes and in another position operating to close the supply tube and to establish communication between theoutlet passage and said discharge tube, a spray head on the outer end of said discharge tube includinga nozzle and an arm rigidly connected with the container and adapted to support the spray head when not in use.

10. In a dental spray, a closed liquid holding container, an inlet conduit communicating with said container, a flexible tube leading from the container, a sprayhead von the outer end of saidtube including a nozzle, an arm fixed upon and extending from the container and adapted to support the spray head with the dischargeend of the nozzle overly- Ving the container,

said armand spray head havingv cooperating-portions serving to prevent turning of the head whereby-to`

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