US3411499A

US3411499A - Hydrotherapy apparatus

Info

Publication number: US3411499A
Application number: US609875A
Authority: US
Inventors: Jacuzzi Rodolfo
Original assignee: Everest and Jennings Inc
Current assignee: Everest and Jennings Inc
Priority date: 1967-01-17
Filing date: 1967-01-17
Publication date: 1968-11-19
Anticipated expiration: 1985-11-19

Description

Nov. 19, 1968 R. JACUZZI HYDROTHERAPY APPARATUS 1 5 Sheets-Sheet 1 Filed Jan. 17, 1967 INVENTOR. 900mm JAcuzz/ ATTO E Y8 Nov. 19, 1968 R. JACUZZI 3,411,499

HYDROTHERAPY APPARATUS Filed Jan. 17, 1967 5 Sheets-Sheet 2 VII INVENTOR.

BY RODOLFO JAcuzz AT TOR NEYS Nov. 19, 1968 v R, JACUZZ. 3,411,499

HYDROTHERAPY APPARATUS Filed Jan. 17, 1967 5 Sheets-Sheet 5 7 UN 7e 82 F1 7 I INVENTOR. RoDoLFo JACUZZ! AT TOR N EYS United States Patent Oflice 3,411,499 Nov. 19, 1968 3,411,499 HYDROTHERAPY APPARATUS Rodolfo Jacuzzi, Lafayette, Calif., assignor, by mesne assignments, to Everest & Jennings, Inc., Los Angeles, Calif., a corporation of California Continuation-impart of application Ser. No. 451,452,

Apr. 28, 1965. This application Jan. 17, 1967,Ser.

23 Claims. (Cl. 128-66) ABSTRACT OF THE DISCLOSURE Hydrotherapy apparatus for producing a whirlpool bath for hydro-massage purposes including pump, or other pressure source which delivers water with substantial pressure through a jet nozzle submerged in the water with means for adjustment of proportions of water and air discharged through the nozzle and adjustment of the direction of discharge from the nozzle.

The present application is a continuation-in-part of my abandoned copending application Ser. No. 451,452, filed Apr. 28, 1965.

This invention relates to hydrotherapy apparatus of the type having a circulator pump in association with a nozzle to deliver a high pressure jet stream of water to a bath tub, or the like, for the purpose of a hydro-massage, and is more particularly directed to apparatus of this'type which features an improved directionally adjustable jet nozzle and valve arrangement by which the direction and pressure of the jet stream may be adjusted over a wide range.

Hydrotherapy apparatus is well known for establishing a whirlpool bath in which one receives the beneficial therapeutic effects to be derived from a hydro-massage. Typically such apparatus includes a pump, or equivalent means, which delivers the water from a tub, tank, or the like, with substantial pressure to a jet nozzle submerged in the water. The jet stream issuing from the nozzle into the water sets up a forceful whirlpool current which in swirling about the body produces a highly beneficial therapeutic action. In order that the force of the massage current be adjustable to suit the needs of the particular individual, a valve is conventionally associated with the nozzle to adjust the flow of water therethrough. The nozzle is typically adjustable to some extent in the direction of discharge in order to add a degree of versatility to the massage treatments that may be administered.

Heretofore, hydrotherapy apparatus has generally been relatively complex in the construction of the nozzle, and the water has traversed a relatively tortuous path in route to the discharge opening of the nozzle. Moreover, the nozzle has been adjustable in only a horizontal plane such that there has not been much versatility in control over the direction of discharge.

It is therefore an object of the present invention to provide hydrotherapy apparatus having a nozzle arrangement of improved simple, compact design wherein the water is delivered to the nozzle via a substantially direct path.

Another object of the invention is the provision of a hydrotherapy nozzle which is adjustable in vertical as well as horizontal planes to thereby afford increased versatility in the directivity of outlet jet flow from the nozzle.

Still another object of the invention is the provision of a hydrotherapy nozzle arrangement of the class descibed which may be selectively locked in any of its positions of jet flow directivity.

It is yet another object of the invention to provide a hydrotherapy nozzle arrangement having extremely Wide ranges of adjustment in the volumes of water and air discharged from the nozzle to thereby provide substantial controllability of the resulting hydro-massaging action.

A further object of the invention is to provide a hydrotherapy nozzle arrangement of the class described which is readily adapted to use with both an integral circulating pump as a tub type of hydrotherapy apparatus, as well as with a separate pressurized piping system for use in a swimming pool, or the like.

A still further object of the invention is to provide hydrotherapy apparatus of the class described which may be adapted to horizontal adjustment of the direction of flow through a full range of 360.

The invention possesses other objects and features of advantage, some of which, with the foregoing, will be set forth in the following description of the preferred form of the invention which is illustrated in the drawings accompanying and forming part of the specification. It is to be understood, however, that variations in the showing made by the said drawings and description may be adopted within the scope of the invention as set forth in the claims.

FIGURE 1 is a side elevation view with portions broken away of hydrotherapy apparatus in accordance with the invention.

FIGURE 2 is an exploded perspective view of the nozzle assembly of the apparatus.

FIGURE 3 is a sectional view taken along line 3-3 of FIGURE 1, illustrating particularly the impeller chamber of the apparatus.

FIGURE 4 is a side elevation view with portions broken away of a modified form of the hydrotherapy apparatus.

FIGURE 5 is an exploded perspective view of a further modified form of the hydrotherapy apparatus.

FIGURE 6 is a bottom plan view of the embodiment of FIGURE 5.

FIGURE 7 is a sectional view taken at line 7-7 of FIGURE 6.

Referring now to FIGURES 1-3 of the drawings there will be seen to be provided hydrotherapy apparatus in accordance with the present invention which, the instant embodiment, includes a circulatory pump 11 and a jet nozzle assembly 12 integrally associated therewith. The pump includes a cylindrical cup shaped housing 13 with a depending volute wall 14 tangent to the periphery of the housing at one point and extending spirally therefrom with gradually increasing radial spacing to a second point spaced radially inward from the first. The wall 14 is supported by a plurality of radially spaced lugs 16 which extend upwardly and inwardly from an annular base 17. Such base is provided with a footing 18 of rubber or equivalent resilient material to facilitate the convenient non-slip placement of the unit in a tub or the like. A cover plate 19 is secured to the lower edge of the volute wall 14 in closing relation thereto, and this plate is upwardly spaced from the footing 18. The volute wall 14, top wall of housing 13, and cover plate 19 define an impeller chamber 21 having an outlet passage 22 extending substantially tangentially therefrom. Per-forations 23 provided substantially centrally of the cover plate 19 provide an inlet to the chamber.

Within the chamber 21 there is provided an impeller 24 journalled for rotation in a bearing hub 26 which projects centrally upward from the top wall of the housing. The impeller is shaft connected to a motor (not shown) disposed within a sealed casing 27 mounted atop the hub. The casing is movable upwardly with respect to the hub by way of the buoyant action of the water on the casing when the water reaches a predetermined level, to close a switch (not shown) which effects energization of the motor, and consequently rotation of the impeller. When the water drops to a predetermined level, the casing moves downwardly sufficiently to cause the switch to open, thereby de-energizing the motor. The float type switch arrangement afforded by the casing is well known and not a part of the present invention. Consequently, details of the switch arrangement are not disclosed herein.

When the motor energized, the impeller 24 is rotated Within the chamber 21. Water is hence drawn into the chamber through the inlet perforations 23 and delivered with substantial pressure from the outlet passage 22. Free inlet circulation or" water to the chamber is afforded by the apertures 28 defined between the support lugs 16. The inlet water is preferably filtered, and in this regard a perforate flexible band 29 of plastic, or the like, is removably secured about the periphery of the housing between the top wall and base thereof to thus enclose the lugs 16. The water is thus filtered in passing through the perforations of the band in route to the apertures 28.

The jet nozzle assembly 12 is provided in communication with the outlet passage 22 from the chamber 21. In accordance with the particularly salient aspects of the invention, the assembly is arranged to provide substantial adjustment of directivity, both horizontal and vertical, of the jet stream issuing from the nozzle. In addition a wid range of adjustment of flow volume and admixed air is facilitated by the assembly. More particularly, the nOZzle assembly 12 includes a hollow base portion 31 which in the instant embodiment integrally projects radially outward from the pump housing 13 at a point adjacent the outlet passage 22. A bore 32 extends longitudinally through the base portion 31 into communication with the outlet passage 22. The bore is formed with an inwardly tapered section at its innermost end defining a valve seat 33. The bore is threaded, as indicated at 34, adjacent its outer end to threadably receive a threaded cylindrical knob 36. A stem 37 projects coaxially from the knobs and terminates in a tapered cylindrical valve plug 38 adapted to engage the seat 33. A bore 39 extends through the top of the base portion 31 into right angular intersection with the bore 32. A cylindrical sleeve 41 projects from the top of the base portion 31 in outwardly spaced relation to the bore 39 to define a cylindrical socket for receiving the jet nozzle 42 of the assembly. Thus, the knob 36 may be rotated to move the lug 38 towards or away from the seat 33 and correspondingly vary the flow of water between the outlet passage 22 of the impeller chamber and the bore 39 to the nozzle. To prevent the knob and plug member from being completely withdrawn from the bore 32, a screw 43 is advantageously threaded radially through a wall of base portion 31 to project into the bore 32 at a position of engagement with the plug 38 when the knob is in fully extended position. The screw thus serves a a stop.

Considering now the jet nozzle 42 in detail, it is to be noted that same includes a cylindrical base 44 depending from a substantially cylindrical right angularly related head 46. The base 44 is rotatably received in the cylindrical socket defined by sleeve 41. The base is formed with an annular groove 47 and a bolt 48, or the like, extends through the wall of the sleeve to provide a detent projecting into the socket and into engagement with the groove. In this manner, the nozzle is vertically locked to the base portion 31 while being rotatable relative thereto in a hornzintal plane. In addition, an O-ring 49 or the like is carried by the base of the nozzle to provide a seal between the nozzle and the base portion 31.

A passage 51 extends into the nozzle longitudinally of the base 44 and into the head 46, such passage communicating with the bore 39. In addition, a passage 52 extends right angularly from the inner end of passage 51 longitudinally through the head. Passage 52 .is preferably of smaller cross section than passage 51 in order that the water flows through passage 52 with substantial force. In order that air may be admixed with the water flowing through passage 52, an elongated air tube 53 projects upwardly from the head of the nozzle and is communicated with passage 52 by means of an air intake passage 54.

As Water flows through passage 52, air is sucked into the stream from the air tube and admixed with the water discharged from the nozzle.

As a very important feature of the present invention, provision is made for adjustable direction of the water issuing from the nozzle 42 in vertical, as well as horizontal planes. This is preferably accomplished by means of a cylindrical director 56 formed with a ball 57 at one end and having a cylindrical bore 58 extending therethrough. The nozzle passage 52 then terminates in a ball socket 59 which receives the ball of the director in multidirectional swivelable relation. About the external end of the socket 59 the head is formed with an externally threaded annular boss 61. A retainer ring 62 having an internally threaded peripheral flange 63 secured to the boss 61 receives the ball 57 and a resilient ring 64 is interposed between the retainer ring and face of the boss. Thus,

when the retainer ring is loosened, the ball may be swivelled in the socket to thereby vary the position of the director as desired, both horizontally and vertically. Th direction of the outlet jet stream issuing from the nozzle is varied correspondingly. The director may be locked in any of these desired posit-ions by tightening the reta ning ring against the ball.

As another important feature of the invention, a wide range of adjustment of the air admixed with the discharged jet stream is provided. This is preferably facilitated by an inlet aperture 66 provided in the wall of the air tube 53 adjacent its upper end, in conjunction with a valve plug 67 engaging the upper end of the air tube in closing relation. More particularly, the plug is provided with an inclined inner end face 68 disposed radially opposite the aperture 66. By rotating the plug, different amounts of the inclined end face are presented to the aperture to vary the size of the air intake opening therethrough. The plug may be rotated to vary the opening through a wide range of sizes between fully open and fully closed. Thus, the amount of air admixed with the water may be varied over a wide range.

In the operation of the hydrotherapy apparatus physically described hereinbefore, the unit is first placed in a bath tub, or the like, preferably at the drain end with the nozzle 42 directed towards the opposite end of the tub. Filling of the tub with water of a desired temperature is then initiated and when the water reaches a predetermined level suflicient to submerge the nozzle, the motor within the casing 27 is automatically energized to thereby effect rotation of the impeller 24. Water is thus delivered with substantial pressure to the nozzle assembly 12. The water is delivered from the nozzle in accordance with the settings of the water and air flow valves to establish a whirlpool. The force of the massaging action produced by the whirlpool depends on the volume of water and amount of admixed air in the stream issuing from the nozzle. The greater the volume of water and amount of air, the more vigorous is the massage. The volume of water flow may be simply adjusted by turning the knob 36, while twisting of the plug 67 adjusts the amount of air in the manner previously described. A variety of therapeutic effects may be derived by varying the direction of flow from the nozzle. In this regard a wide range of horizontal directions may be obtained by rotating the nozzle with respect to the base portion 31. A smaller range of horizontal directions, and more importantly, vertical variation of flow direction is simply obtained by swivelling the director 56 to the desired position.

Although the nozzle assembly 12 has been described hereinbefore in integral association with a circulatory pump 11 to provide a self-contained hydrotherapy apparatus, the nozzle assembly per se may be advantageously employed in other applications. For example, as depicted in FIGURE 4, a modified form of nozzle assembly may be employed with a pressurized piping system of a swimming pool for purposes of hydrotherapy. In this regard, the base portion 31 is provided as a separate unit and the end thereof remote from knob 36 is provided with an externally threaded extension 69. The extension may be screwed into a pressurized water pipe 71 in a side of the pool. The operation of the nozzle assembly is then the same as that previously described with the exception of the source of pressurized water supplied to the assembly being a pipe pressurized by a remote pumping system, rather than a directly associated pump.

In some instances it is desirable that hydrotherapy apparatus of the type illustrated in FIGURES 1-3 and hereinbefore described be modified to provide horizontal adjustment of the direction of flow through a full range of 360. In this regard, reference is made to FIGURES 5-7 which illustrate a modified form of hydrotherapy apparatus of somewhat simplified design, which is yet capable of a full 360 of adjustment in the horizontal direction of flow. As shown therein, the modified hydrotherapy apparatus is, in basic respects, of the same design as the embodiment of FIGURES 1-3. However, there is provided a modified jet nozzle assembly 12' having a jet nozzle 42' which is cast integrally with a base portion 31' extending from the pump housing 13, rather than being rotatable relative thereto. As in the case of the previous embodiment, the base portion 31' includes a valve which controls the flow of water to the nozzle 42' by means of a rotatable adjusting knob 36 having a valve plug 38 at its inner end. The nozzle 42 likewise similarly includes a cylindrical director 56' formed with a ball 57' and having a cylindrical bore 58 extending therethrough. A ball socket 59 is provided at the outlet of a nozzle passage 52' to receive the ball in swivellable relation. An externally threaded annular boss 61' is provided about the socket for securance of a retainer ring 62', which upon tightening serves to lock the director 56' in position. An air tube 53' is communicably connected to flow passage 52.

Thus, except for the base portion 31' and jet nozzle 42' being integrally provided, the assembly 12 is in basic respects similar to that of the embodiment of FIGURES l-3, as is the overall hydrotherapy apparatus. However, the present embodiment includes several further significant departures from the embodiment of FIGURES 1-3. In particular, the pump housing 13' is mounted for rotation about a vertical axis on a support stand 72. Thus, the entire housing 13' including the jet nozzle 42' is rotatable through a full 360 such that the horizontal direction of flow through the nozzle is adjustable through the same angular range. To facilitate the foregoing, the stand preferably includes an annular upper wall 73 having a cylindrical peripheral wall 74 depending marginally therefrom. The marginal wall terminates downwardly in an outwardly flared annular flange 76 which is encompassed by a footing 77 of rubber, etc., to facilitate non-slip support of the unit on the base of a tub, or the like. The stand 72 is preferably fabricated'of suitable plastic which presents a low friction support surface to the housing 13'. An annular base 17' of the housing 13' (devoid of a nonslip footing such as footing 18 of the embodiment of FIG- URES l-3) is positioned on the upper wall 73 of the stand 72. A disc shaped retaining member 78 removably secured to the base 17' as by means of screws 79, serves to retain the base in position on the stand, while permitting free relative rotation therebetween. In this regard, the member 78 is provided with circumferentially spaced depending lugs 81 which extend through the central aperture of annular wall 74 and have outwardly projecting cars 82 disposed s'ubjacent same. The lugs and ears thus retain the housing base in coaxial relation to the support stand and limit relative coaxial movement therebetween. The base normally rests on the top surface of annular wall 74 of the stand, and by virtue of the low friction surface of the stand the housing base is readily rotatable thereon.

Since the entire housing 13' is rotatable through 360 about a vertical axis, it is not necessary for the director 56 of nozzle 42 to be also rotatable about a vertical axis. A full range of horizontal adjustment of the direction of flow through the nozzle is obtained by rotating the pump housing. Therefore, as another departure from the embodiment of FIGURES 1-3, means may be provided to restrict adjustment of the director 56' to rotation about a horizontal axis. Such means preferably comprise a pair of diametrically opposed pins 83 projecting outwardly from the ball 57' in normal relation to the axis of bore 58. The pins engage diametrically opposed slots 84 in the wall of socket 59' extending longitudinally inward from the the outer end thereof. The pins permit rotation of the director about a horizontal axis to thereby provided vertical adjustment of flow direction, but prevent rotation of the director about other axes.

What is claimed is:

1. Hydrotherapy apparatus comprising 'a base portion having a horizontal bore extending longitudinally therethrough and adapted for communicable connection at one end to a source of pressurized water, said bore having an internally threaded portion at the other end, said bore having an inwardly tapered valve seat intermediate said ends, said base portion having a vertical outlet opening in right angular communication with said bore, an externally threaded knob engaging the internally threaded portion of said bore, a tapered valve plug carried by said knob and engageable with said seat, a nozzle secured to said base portion, said nozzle having a flow passage communicating with said outlet opening, said flow passage terminating in ball socket, a water discharge director including a ball at one end disposed in said socket for universal movement relative thereto, said director having a water passage extending therethrough, and an air tube secured to said nozzle and communicating with the flow passage thereof.

2. Hydrotherapy apparatus according to claim 1, further defined by said nozzle being mounted on said base portion for rotation about a vertical axis.

3. Hydrotherapy apparatus according to claim 1, further defined by said air tube having an aperture adjacent its outer end, and an air regulating plug disposed in closing relation to the outer end of said air tube and having an inclined inner end face opposite said aperture.

4. Hydrotherapy apparatus according to claim 2, further defined by said base portion having a sleeve projecting therefrom in outwardly spaced relation to said outlet opening, and said nozzle having a substantially cylindrical base depending right angularly from a head, said nozzle base rotatably secured in said sleeve, said nozzle base having a flow passage extending longitudinally thereof into said head, said head having a flow passage extending longitudinally thereof into communication with said flow passage of said nozzle base, said head'having a ball socket at the outlet end of said flow passage thereof, and said director having a bore extending therethrough and a ball formed at one end in engagement with said socket.

5. Hydrotherapy apparatus according to claim 4, further defined by said head having an externally threaded boss circumscribing said socket, a retaining ring having an internally threaded annular flange engaging said boss, said ring traversed by said ball, and a resilient ring interposed between said retaining ring and the end face of said boss.

6. Hydrotherapy apparatus according to claim 5, further defined by said air tube communicating with said flow passage of said head and having an aperture adjacent its outer end, and an air adjusting plug rotatably secured in the outer end of said tube, said air adjusting plug having a tapered inner end face adjacent said aperture.

7. Hydrotherapy apparatus according to claim 6, further defined by a pressurized water pipe in a wall of a swimming pool being oommunicably connected to said bore of said base portion.

8. Hydrotherapy apparatus according to claim 1, further defined by a pressurized water pipe in a wall of a swimming pool being communica'bly connected to said bore of said base portion.

9. Hydrotherapy apparatus according to claim 1, further defined by a pump housing having a volute impeller chamber including a tangential outlet passage therein, said housing having inlet openings substantially centrally of said chamber, and an impeller mounted for driven notation in said chamber, said base portion projecting outwardly from said housing at a point adjacent said outlet passage with the bore of said base portion communicating therewith at said one end.

10. Hydrotherapy apparatus according to claim 9, further defined by said nozzle being mounted on said base portion for rotation about a vertical axis, and a swivelable director mounted in the outlet end of said flow passage for universal movement.

11. Hydrotherapy apparatus according to claim 10, further defined by said base portion having a sleeve projecting therefrom in outwardly spaced relation to said outlet opening, and said nozzle having a substantially cylindrical base depending right angularly from a head, said nozzle base rotatably secured in said sleeve, said nozzle base having a fiow passage extending longitudinally thereof into said head, said head having a flow passage extending longitudinally thereof into communication with said flow passage of said nozzle base, said head having a ball socket at the outlet end of said flow passage thereof, and said director having a bore extending therethrough and a ball formed at one end in engagement with said socket.

12. Hydrotherapy apparatus according to claim 11, further defined by said head having an externally threaded boss circumscribing said socket, a retaining ring having an internally threaded annular flange engaging said boss, said ring traversed by said ball, and a resilient ring interposed between said retaining ring and the end face of said boss.

13. Hydrotherapy apparatus according to claim 9, further defined by a support stand, "means mounting said housing upon said support stand for movement about a vertical axis, and a swivelable director mounted in the outlet end of said flow passage of said nozzle.

14. Hydrotherapy apparatus according to claim 13, further defined by means for limiting said director to swivelable movement abouta horizontal axis.

15. Hydrotherapy apparatus according to claim 14, further defined by said nozzle having a ball socket at the outlet end of said fiow passage of said nozzle, said director having a bore extending therethrough and a ball formed at one end in engagement with said socket, said nozzle having a boss circumscribing said socket, a retaining ring secured to said boss, said ring traversed by said ball, said limiting means comprising a pair of diametrically opposed pins projecting outward from said socket in normal relation to said director bore, said socket having diametrically opposed slots in the wall thereof extending longitudinally inward from the outer end of said socket, said slots engaged by said pins.

16. Hydrotherapy apparatus according to claim 14, further defined by said support stand having an annular upper wall with a cylindrical peripheral wall depending marginally therefrom, said upper wall having a low coeflicient of friction upper surface, said housing having a base supported on said upper surface of said upper wall, and said mounting means comprising a retaining member secured to the base of said housing, said retaining member having a plurality of circumferentially spaced lugs extending through the central aperture of said annular upper wall, said lugs having outwardly projecting ears disposed subjacent said upper wall.

17. Hydrotherapy apparatus according to claim 15 further defined by said support stand having an annular upper wall with a cylindrical peripheral wall depending marginally therefrom, said upper wall having a low coefficient of friction upper surface, said housing having a base supported on said upper surface of said upper wall, and said mounting means comprising a retaining member secured to the base of said housing, said retaining member having a plurality of circumferentially spaced lugs extending through the central aperture of said annular upper wall, said lugs having outwardly projecting ears disposed subjacent said upper wall.

18. Hydrotherapy apparatus comprising a substantially cylindrical base portion having a bore extending longitudinally therethrough and adapted for communicable connection at one end to a source of pressurized water, said bore having an internally threaded portion at the other end, said bore having an inwardly tapered valve seat, said base portion having an outlet opening in right angular communication with said bore, said base portion having a sleeve projecting therefrom in outwardly spaced relation to said opening, an externally threaded knob engaging the internally threaded portion of said bore, a tapered valve plug secured to said knob and engageable with said seat, a nozzle having a head and a substantially cylindrical base depending right angularly therefrom, said base rotatably secured in said sleeve, said base having a flow passage extending longitudinally thereof into said head, said head having a flow passage extending longitudinally thereof into communication with said flow passage of said base, and an elongated air tube secured to said head and communicating with the flow passage of said head.

19. Hydrotherapy apparatus according to claim 18, further defined by a substantial-1y cylindrical director having a bore extending longitudinally therethrough and swivelably secured at one end within the outlet of the flow passage of said head.

20. Hydrotherapy apparatus according to claim 18, further defined by said head having a ball socket formed in the outlet end of the passage therethrough and an externally threaded boss circumscribing said socket, said director formed with a ball at one end engaging said socket, a retaining ring having an internally threaded annular flange engaging said boss, said ring traversed by said ball, and a resilient ring interposed between said retaining ring and the end face of said boss.

21. Hydrotherapy apparatus according to claim 18, further defined by said air tube having an aperture adjacent its outer end, and a plug rotatably secured in the outer end of said tube, said plug having a tapered inner end face adjacent said aperture.

22. Hydrotherapy apparatus comprising a pump housing having a volute impeller chamber including a tangential outlet passage therein, said housing having inlet openings substantially centrally of said chamber, an impeller mounted for driven rotation in said chamber, said housing having a nozzle base portion projecting outwardly at a point adjacent said outlet passage, said base portion having a bore extending longitudinally therethrough into communication with said outlet passage, said bore having a tapered valve seat adjacent said outlet passage, said base portion having an outlet opening extending right angularly into communication with said bore, a knob member threadably engaging the outer end of said bore, a tapered valve plug secured to said knob member and engageable with said seat, a nozzle having a head and a base depending right angularly therefrom, said base having a passage extending longitudinally thereof into said head, said head having a passage extending longitudinally thereof into communication with the passage of said base, means mounting said nozzle for rotation upon said base portion with the passage of said base communicating with said outlet opening, a hollow [director swivelably mounted in the outlet end of the passage of said head, and an air tube secured to said head and communicating with the passage thereof.

23. In a swimming pool having a pressurized water pipe in a wall thereof, the combination comprising a noz- 9 zle base portion secured to said pipe and having a bore extending longitudinally therethrough into communication with said pipe, said bore having a tapered valve seat adjacent said outlet passage, said base portion having an outlet opening extending right angularly into communication with said bore, a knob member threadably engaging the outer end of said bore, a tapered valve plug secured to said knob member and engageable with said seat, a nozzle having a head and a base depending right angnlarly therefrom, said base having a passage extending longitudinally thereof into said head, said head having a passage extending longitudinally thereof into communication with the passage of said base, means mounting said nozzle for rotation upon said base portion with the ing, a hollow director swivelably mounted in the outlet end of the passage of said head, and an air tube secured to said head and communicating With the passage thereof.

References Cited UNITED STATES PATENTS 2,738,787 3/1956 Jacuzzi et al 128-66 3,271,790 9/1966 Schneider et al 4l80 3,279,703 10/1966 Steltz et al. 12866 XR 3,287,741 11/1966 Nash 4180 3,304,936 2/1967 Kosta 128-66 3,340,870 9/1967 Steltz et al. 12866 3,345,982 10/1967 Guiler 12866 passage of said base communicating with said outlet open- 15 L. W. TRAPP, Primary Examiner.