GB2327373A

GB2327373A - Improvements in and relating to nozzles for baths

Info

Publication number: GB2327373A
Application number: GB9715148A
Authority: GB
Inventors: David Smith
Original assignee: AQUAJET INTERNATIONAL Ltd
Current assignee: AQUAJET INTERNATIONAL Ltd
Priority date: 1997-07-19
Filing date: 1997-07-19
Publication date: 1999-01-27
Anticipated expiration: 2017-07-19
Also published as: GB2327373B; GB9715148D0

Abstract

The present invention provides improved nozzles for baths. According to a first aspect of the invention an aerated nozzle (2) with improved drainage is provided. According to a second aspect of the invention, an improved nozzle design allows easier assembly and ensures a more secure connection of the nozzle (2) to a wall of a bath (4), such that additional sealant material is not always required. In accordance with a third aspect of the invention a more efficient aerated nozzle (2) is provided by restricting the location of introduction of the air into the water flow path. A fourth aspect of the invention provides a nozzle (2) comprising a water outlet (44) of novel construction, such a nozzle (2) provides improved performance and efficiency. A further aspect of the invention provides an aerated nozzle (2) for a bath comprising an eyeball jet (12) and socket (26, 28) with improved sealing means.

Description

INPROVEMENTS IN AND RELATING TO NOZZLES FOR BATHS Field of the Invention The present invention relates to nozzles for baths and to baths comprising such nozzles.

Backaround to the Invention In this specification, in relation to a bath, the "interior" is that side of the bath wall in which water is accumulated to at least partly fill the bath, and the "exterior" is the other side of the bath wall. A "bath" is a receptacle for holding a liquid, into which receptacle the whole or part of an animal (normally a person) is to be bathed, which may involve a treatment of some kind, for instance hydrotherapy.

It is known, for instance from EP-A-O 234 723, to provide a nozzle for a bath in which the nozzle comprises a body portion on the exterior of a bath and a facia on the interior of a bath. The nozzle is intended to be installed in a round hole in a bath wall. The body portion and facia are normally screwed together using an external thread on a part of the facia extending to the exterior of the bath. The facia is turned to tighten the two parts together and a bead of adhesive sealant is usually used between the facia and interior bath wall to ensure both a water tight seal and that the nozzle remains in place. It can be difficult to tighten the two parts together because the facia, which is shaped externally primarily for its aesthetic appeal, offers no aid to gripping. Furthermore, such an arrangement offers several paths for the flow of the water from the nozzle which can lead to incomplete drainage. EP-A-O 234 723 seeks to solve this last problem by providing a drainage hole in the facia ie an additional drainage path.

The underlying principle of aerated nozzles is that a water flow issues from a convergent jet orifice. The high velocity water flow issues into a contained area that is connected to free air. There is local low pressure at the orifice exit plane and this causes air to be rapidly entrained into the water flow.

The majority of bath nozzles have a mixing chamber that produces such an aerated jet and there are examples where the aerated jet is allowed to freely issue into the bath. However, most bath nozzles have a further facility whereby the flow of the aerated jet can be directed by the user to an off-axis direction. This is accomplished by placing an eyeball after the mixing chamber. These eyeballs are spherical in a mounting such that they can be freely swivelled. The aerated jet passes through the eyeball via a conical contraction to capture the jet at all positions of the eyeball and then a subsequent conical expansion to allow the aerated jet to issue into the bath water.

It is believed that the conical contraction in an eyeball jet introduces a pressure loss which depends acutely on the ratio of the widest to narrowest areas and to some extent on the Reynolds number. The magnitude of this loss is difficult to quantify because no simple theory exists for the loss at a sudden contraction. It is further complicated by the fact that the flow is two phase (air and water). The pressure loss is disadvantageous because it must reduce the penetration of the aerated jet into the bath and hence the effect on any body in the bath.

The nozzle of EP-A-O 234 723 comprises a water inlet and an air inlet to a mixing chamber, from which mixing chamber aerated water flows through an outlet jet with a circular orifice. It is believed by the present inventor that the efficiency and performance of such an arrangement can be improved.

It is an aim of preferred embodiments of the present invention to obviate or overcome a problem encountered in the prior art devices, whether referred to herein or otherwise.

Slsmmars of the Invention According to the present invention in a first aspect, there is provided a nozzle for a bath, the nozzle comprising an eyeball jet in a socket in which drainage from the nozzle is provided only along paths defined at least on one side by the eyeball jet.

Such an arrangement maximises drainage.

Suitably, between the socket for the eyeball jet and the eyeball jet there is at least one groove from one side of the eyeball jet to the other to provide additional drainage. Normally the groove is in the socket.

Normally, there will be a plurality of such grooves.

According to the present invention in a second aspect, there is provided a nozzle for a bath, the nozzle comprising a body adapted to be located at least partly on the exterior of a bath, facia adapted to be located at least partly on the interior of a bath, the facia including an extension piece for extending to the body, and a connector for securing the facia to the body, which connector is adapted to be located at least partly on the exterior of a bath.

By providing a connector on the exterior of the bath, it is far easier to connect securely the body and the facia so that a sealant material is not required.

Furthermore, it helps simplify the construction of the jet and its surround.

Suitably, the connector is located entirely on the exterior of a bath. Suitably, the body is located entirely on the exterior of a bath.

Suitably, the connector comprises means for twist fitting to secure the facia to the body. Suitably, the extension piece of the connector is screw threaded to engage with a corresponding screw thread on the connector.

Preferably, the screw thread on the extension piece for engagement with the connector is an external screw thread.

Suitably, the connector comprises a ring. Suitably, the ring comprises at least one gripping aid. A typical gripping aid is a protrusion from the ring.

Suitably, the extension piece is screw threaded to engage with a corresponding screw thread on the body.

Preferably, the screw thread on the extension piece for engagement with the connector is an internal screw thread.

Suitably, the facia includes means for receiving a seal between the facia and the interior wall of the bath.

The seal typically is a rubber O-ring.

Suitably, the second aspect of the invention is modified according to the first aspect of the invention.

According to the present invention in a third aspect, there is provided a nozzle for a bath, the nozzle comprising a water inlet and an air inlet, a water flow path from the water inlet to an outlet passage and means for introducing air into the water flow path, in which the air introduction means introduces air into the water flow path at or beyond the narrowest point of the outlet passage.

Reference to "beyond" is in respect of the intended direction of water flow.

It has been found that such an arrangement gives significantly higher efficiencies.

Suitably, the outlet tapers outwardly from the air introduction.

Suitably, the outlet tapers inwardly for a portion until prior to the air introduction.

Suitably, the outlet comprises an eyeball jet in a socket.

Suitably, the air inlet projects into the eyeball jet.

Suitably, the third aspect is modified according to the first and/or second aspect of the invention.

According to the present invention in a fourth aspect, there is provided a nozzle for a bath, the nozzle comprising a water inlet and a non-circular water outlet.

Suitably, the water outlet is elongate. More suitably, the water outlet is oval.

Suitably, the water outlet is a jet. Suitably, the jet is an eyeball jet in a socket.

Suitably, the fourth aspect of the invention is modified according to the first, second and/or third aspect of the invention.

According to the present invention in a fifth aspect, there is provided a nozzle for a bath, the nozzle comprising an eyeball jet in a socket, in which a sealing means is provided towards the rear of the eyeball jet, between the eyeball jet and the socket thereby to at least partly prevent the flow of water around the exterior of the eyeball jet.

Suitably, the sealing means comprises an O-ring.

Suitably, the O-ring is a rubber O-ring.

Suitably, the eyeball jet comprises a shoulder for receiving the sealing means.

Suitably, the fifth embodiment of the invention is modified according to any of the first, second, third and/or fourth aspects of the invention.

According to the present invention in a sixth aspect, there is provided a bath comprising at least one nozzle according to any preceding aspect of the invention in a wall of the bath.

Brief DescriPtion of the Drawings The invention will now be described, by way of example only, with reference to the drawings that follow; in which: Figure 1 is a perspective illustration of a nozzle according to the present invention.

Figure 2 is a front elevation of the nozzle shown in Figure 1.

Figure 3 is a plan view of the nozzle shown in Figures 1 and 2.

Figure 4 is a cross-sectional side elevation on the line IV-IV in Figure 2.

Figure 5 is a perspective illustration of the body of the nozzle shown in Figures 1-4.

Figure 6 is a front elevation of the body shown in Figure 5.

Figure 7 is a plan view of the body shown in Figures 5 and 6.

Figure 8 is a cross-sectional side elevation on the line VII-VIII in Figure 6.

Figure 9 is a perspective illustration of the eyeball jet shown in Figures 1-4.

Figure 10 is a front elevation of the eyeball jet shown in Figure 9.

Figure 11 is a plan view of the eyeball jet shown in Figures 9 and 10.

Figure 12 is a cross-sectional side elevation on the line XII-XII in Figure 10.

Figure 13 is a perspective view of the facia piece shown in Figures 1-4.

Figure 14 is a front elevation of the facia piece shown in Figure 13.

Figure 15 is a plan view of the facia piece shown in Figures 13 and 14.

Figure 16 is a cross-sectional side elevation on the line XVI-XVI in Figure 14.

Figure 17 is a perspective illustration of the connector shown in Figures 1-4.

Figure 18 is a front elevation of the connector shown in Figure 17.

Figure 19 is a plan view of the connector shown in Figures 17 and 18.

Figure 20 is a cross-sectional side elevation on the line XX-XX in Figure 18.

Figures 21-24 are graphs of pressure distributions on a body receiving a jet output from the nozzle of Figures 1-20.

Description of the Preferred Embodiment Referring to Figures 1-4 of the drawings that follow, there is shown a nozzle 2 for a bath, the wall 4 of which is shown in cross-section in Figure 4. The interior of the bath is on the side of wall indicated at 6 the exterior of the bath is on the side of the wall indicated at 8.

The nozzle 2 comprises a body 10, an eyeball jet 12, a facia piece 14 and a connector 16.

Referring to Figures 5-8 of the drawings that follow, the body 10 comprises a water inlet connector 18 and a water outlet connector 20 defining a horizontal tube 22 along which water flows in use. From the tube 22, a water inlet 24 (Figure 8) extends to a first socket part 26 for receiving the eyeball jet 12. The first socket part 26 defines a generally semi-spherical concave cavity. An external screw thread 28 extends about the region of the body defined by the first socket part 26. Also provided in the body 10 is an air inlet connector 30 leading to an air inlet passage 32 which extends into the cavity defined by the first socket part 26 to terminate in an air outlet 34. The front of the body 10 is defined by a planar front end 36. At the bottom of the first socket part 26 are three drainage channels 38.

Referring to Figures 9-12 of the drawings that follow, the eyeball jet 12 comprises a truncated spherical exterior 40 cut off at one side by an inlet 42 and at the other side by an outlet 44. Between the inlet 42 and outlet 44 is a path of fluid communication 46. From the inlet 42, the path of fluid communication 46 tapers inwardly to a circle 48 at which plane (of the circle) the path of fluid communication 46 is at its narrowest for a region 49 of constant diameter. From the region 49 of constant diameter, the path of fluid communication 46 tapers outwardly to an oval shaped outlet. The oval is oriented, in use, with its long axis generally horizontal.

Referring to Figures 13-16 of the drawings that follow, the facia piece 14 comprises an external face 60 intended, in use, to be seen by the user. The external face 60 is generally smooth and shaped to be aesthetically pleasing. The facia piece 14 is generally top-hat shaped in cross-section with the external face 60 forming the lower brim of the "hat". The upper brim of the "hat", which in use is intended to bear against the interior bath wall 6, includes a generally circular channel 62 intended to carry a sealing O-ring (not shown).

The facia piece 14 extends to a circular cylindrical shaped tubular extension portion 64 which projects to the exterior side of bath wall 8 and carries both internal and external threads 66, 68 respectively. The internal thread 66 is adapted to engage with external screw thread 28 on body portion 10. The facia piece 14 also forms a second socket part 28 to complete the socket within which the eyeball jet 12 is located. The facia piece 14 includes a further circular channel 70 for a sealing rubber O-ring between the facia piece 14 and the body 10. The interior of the facia piece 14 forms a second socket part 71.

The connector 16 comprises a circular ring with an internal thread 72 adapted to engage with external thread 68 of facia piece 14. The connector 16 includes six grip aids 74 spaced evenly around its exterior surface. Each grip aid 74 comprises three longitudinal bumps.

A further rubber O-ring 80 (Figure 4) is located on a shoulder 81 (Figures 10 and 12) of jet 12.

A method of assembly of the nozzle 2 will now be described, although it will be appreciated that other methods can be adopted within the scope of the present invention.

The facia piece 14 is inserted from the interior side of bath wall 4 through the hole for the nozzle 2 so that extension portion 64 extends through the hole. The connector 16 is then screwed onto facia piece 14 loosely (ie it is not tightened against bath wall 4) and the eyeball jet 12 is placed roughly in position in second socket part 71 of facia piece 14. Body 10 is then screwed onto facia piece 14, the external screw thread 28 of body piece 10 engaging with the internal screw thread 66 of facia piece 14. The body 10 is screwed into the facia piece 14 until the front end 36 of body 10 abuts against the facia piece 14. The body 10 is then oriented so that the inlet and outlet connectors 18, 20 respectively and air inlet connector 30 are oriented correctly. The connectors 18, 20 should be horizontal. The connector 16 is then screwed further on to facia piece 14 to tighten it up on facia piece 14 and compress the bath wall 4 to secure the nozzle 2 thereto and compress the facia piece 14 against interior bath wall 6. If needs be, the eyeball jet 12 is oriented as desired, normally with the long axis of the oval generally horizontal.

The eyeball jet 12 is capable of movement in the socket so that the direction and orientation of the jet output can be altered. It acts as a universal joint.

It is noted that the air outlet 34 is located at the narrowest point of the fluid path through jet 12. That is, the fluid flow path gets no narrower beyond the air outlet 34. It has been found experimentally that such a relative positioning of the air outlet 34 and fluid flow path of jet 12 gives increased efficiency. The elongate jet outlet 44 enhances performance by distributing the output jet, in use, along the length of a bath. In a typical bathing position, the elongate jet output plays along the length of the user's body rather than up it, with some of the jet spilling over to waste the effect of the water jet.

The pressure loss associated with known nozzles is avoided in preferred embodiments of the present invention by bringing the air supply to the narrowest circular area within the path through the eyeball. This point now acts as the convergent nozzle and mixing chamber and the jet can freely issue into the bath without the pressure loss through a subsequent contraction.

Referring to Figures 21-24 of the drawings that follow, there are shown graphs of pressure distributions on a body at two distances from the nozzle outlet for both the major and minor axes of the jet. In each of Figures 21-24 the pressure of the jet in mm H2O is shown at a given distance from one side of the jet output to the other.

The dark areas indicate the extent of the fluctuating pressures observed and the central white line indicates the mean pressure measured at the body. Figures 21 and 22 represent movements at 4cm along the major and minor axes respectively. Figures 23 and 24 represent measurements at 8cm along the major and minor axes respectively. An elongate pressure distribution is apparent.

Drainage from the nozzle 2 is encouraged, primarily through the jet outlet. There is a general downward sloping of components in the nozzle 2 and drainage only needs to occur around the eyeball jet 12. Drainage channels 38 provide a specific fluid flow path past the eyeball jet 12 from the region 83 (Figure 4) behind the eyeball jet 12 at which water is otherwise likely to accumulate. A corresponding opening 82 is provided in the facia piece 14.

The O-ring 80 helps provide a watertight seal between most of jet 12 and socket 26, 28 with the drainage channels 38 allowing any excess water to drain away.

Additionally, in use, O-ring 80 helps substantially prevent water escaping around the eyeball jet 12, thus enhancing the output through the jet 12.

Normally, the nozzle 2 is formed from plastics components by injection including polypropylene is a preferred plastics material.

The reader's attention is directed to all papers and documents which are filed concurrently with or previous to this specification in connection with this application and which are open to public inspection with this specification, and the contents of all such papers and documents are incorporated herein by reference.

All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.

Each feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.

The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.

Claims

1. A nozzle for a bath, the nozzle comprising an eyeball jet in a socket in which drainage from the nozzle is provided only along paths defined at least on one side by the eyeball jet.

2. A nozzle for a bath, according to Claim 1, in which between the socket for the eyeball jet and the eyeball jet there is at least one groove from one side of the eyeball jet to the other to provide additional drainage.

3. A nozzle for a bath, according to Claim 2, in which the at least one groove is in the socket.

4. A nozzle for a bath, according to Claim 2 or Claim 3, in which there are a plurality of such grooves.

5. A nozzle for a bath, the nozzle comprising a body adapted to be located at least partly on the exterior of a bath, facia adapted to be located at least partly on the interior of a bath, the facia including an extension piece for extending to the body, and a connector for securing the facia to the body, which connector is adapted to be located at least partly on the exterior of a bath.

6. A nozzle for a bath, according to Claim 5, in which the connector is located entirely on the exterior of a bath.

7. A nozzle for a bath, according to Claim 5 or Claim 6, in which the body is located entirely on the exterior of a bath.

8. A nozzle for a bath, according to any one of Claims 5-7, in which the connector comprises means for twist fitting to secure the facia to the body.

9. A nozzle for a bath, according to Claim 8, in which the extension piece of the facia is screw threaded to engage with a corresponding screw thread on the connector.

10. A nozzle for a bath, according to Claim 9, in which the screw thread on the extension piece for engagement with the connector is an external screw thread.

11. A nozzle for a bath, according to any one of Claims 5-10, in which the connector comprises a ring.

12. A nozzle for a bath, according to Claim 11, in which the ring comprises at least one gripping aid.

13. A nozzle for a bath, according to Claim 12, in which the gripping aid is a protrusion from the ring.

14. A nozzle for a bath, according to any one of Claims 5-13, in which the extension piece is screw threaded to engage with a corresponding screw thread on the body.

15. A nozzle for a bath, according to Claim 14, in which the screw thread on the extension piece for engagement with the body is an internal screw thread.

16. A nozzle for a bath, according to any one of Claims 5-15, in which the facia includes means for receiving a seal between the facia and the interior wall of the bath.

17. A nozzle for a bath, according to Claim 16, in which the seal is a rubber O-ring.

18. A nozzle for a bath, according to any one of Claims 5-17, in which the nozzle comprises an eyeball jet in a socket in which drainage from the nozzle is provided only along paths defined at least on one side by the eyeball jet.

19. A nozzle for a bath, according to Claim 18, in which between the socket for the eyeball jet and the eyeball jet there is at least one groove from one side of the eyeball jet to the other to provide additional drainage.

20. A nozzle for a bath, according to Claim 18 or Claim 19, in which the groove is in the socket.

21. A nozzle for a bath, according any one of Claims 18 20, in which there are be a plurality of such grooves.

22. A nozzle for a bath, the nozzle comprising a water inlet and an air inlet, a water flow path from the water inlet to an outlet passage and means for introducing air into the water flow path, in which the air introduction means introduces air into the water flow path at or beyond the narrowest point of the outlet passage.

23. A nozzle for a bath, according to Claim 22, in which the outlet tapers outwardly from the air introduction.

24. A nozzle for a bath, according to Claim 22 or Claim 23, in which the outlet tapers inwardly for a portion until prior to the air introduction.

25. A nozzle for a bath, according to any one of Claims 22-24, in which the outlet comprises an eyeball jet in a socket.

26. A nozzle for a bath, according to Claim 25, in which the air inlet projects into the eyeball jet.

27. A nozzle for a bath, according to any one of claims 1-4, in which the nozzle comprises a water inlet and an air inlet, a water flow path from the water inlet to an outlet passage and means for introducing air into the water flow path, in which the air introduction means introduces air into the water flow path at or beyond the narrowest point of the outlet passage.

28. A nozzle for a bath, according to Claim 27, in which the outlet tapers outwardly from the air introduction.

29. A nozzle for a bath, according to Claim 27 or Claim 28, in which the outlet tapers inwardly for a portion until prior to the air introduction.

30. A nozzle for a bath, according to any one of claims 27-29, in which the air inlet projects into the eyeball jet.

31. A nozzle for a bath, according to any one of claims 5-17, in which the nozzle further comprises a water inlet and an air inlet, a water flow path from the water inlet to an outlet passage and means for introducing air into the water flow path, in which the air introduction means introduces air into the water flow path at or beyond the narrowest point of the outlet passage.

32. A nozzle for a bath, according to Claim 31, in which the outlet tapers outwardly from the air introduction.

33. A nozzle for a bath, according to Claim 31 or Claim 32, in which the outlet tapers inwardly for a portion until prior to the air introduction.

34. A nozzle for a bath, according to any one of Claims 31-33, in which the outlet comprises an eyeball jet in a socket.

35. A nozzle for a bath, according to Claim 34, in which the air inlet projects into the eyeball jet.

36. A nozzle for a bath, according to any one of claims 18-21, in which the nozzle further comprises a water inlet and an air inlet, a water flow path from the water inlet to an outlet passage and means for introducing air into the water flow path, in which the air introduction means introduces air into the water flow path at or beyond the narrowest point of the outlet passage.

37. A nozzle for a bath, according to Claim 36, in which the outlet tapers outwardly from the air introduction.

38. A nozzle for a bath, according to Claim 36 or Claim 37, in which the outlet tapers inwardly for a portion until prior to the air introduction.

39. A nozzle for a bath, according to any one of claims 36-38, in which the air inlet projects into the eyeball jet.

40. A nozzle for a bath, the nozzle comprising a water inlet and a non-circular water outlet.

41. A nozzle for a bath, according to Claim 40, in which the water outlet is elongate.

42. A nozzle for a bath, according to Claim 40 or Claim 41, in which the water outlet is oval.

43. A nozzle for a bath, according to any one of claims 40-42, in which the water outlet is a jet.

44. A nozzle for a bath, according to Claim 43, in which the jet is an eyeball jet in a socket.

45. A nozzle for a bath, according to any one of claims 1-4, in which the nozzle comprises a water inlet and a non-circular water outlet.

46. A nozzle for a bath, according to any one of claims 5-17, in which the nozzle comprises a water inlet and a non-circular water outlet.

47. A nozzle for a bath, according to any one of claims 22-26, in which the nozzle comprises a water inlet and a non-circular water outlet.

48. A nozzle for a bath, according to any one of claims 18-21, in which the nozzle comprises a water inlet and a non-circular water outlet.

49. A nozzle for a bath, according to any one of claims 31-35, in which the nozzle further comprising a water inlet and a non-circular water outlet.

50. A nozzle for a bath, according to any one of claims 36-39, in which the nozzle further comprises a water inlet and a non-circular water outlet.

51. A nozzle for a bath, according to any one of claims 45-50, in which the water outlet is elongate.

52. A nozzle for a bath, according to any one of claims 45-50, in which the water outlet is oval.

53. A nozzle for a bath, according to any one of Claims 46, 47 or Claim 49, in which the water outlet is a jet.

54. A nozzle for a bath, according to Claim 53, in which the jet is an eyeball jet in a socket.

55. A nozzle for a bath, the nozzle comprising an eyeball jet in a socket, in which a sealing means is provided towards the rear of the eyeball jet, between the eyeball jet and the socket thereby to at least partly prevent the flow of water around the exterior of the eyeball jet.

56. A nozzle for a bath, according to Claim 55, in which the sealing means comprises an O-ring.

57. A nozzle for a bath, according to Claim 56, in which the O-ring is a rubber O-ring.

58. A nozzle for a bath, according to any one of claims 55-57, in which the eyeball jet comprises a shoulder for receiving the sealing means.

59. A nozzle for a bath, according to any one of Claims 5, 17, 22-26, 31-35, 40-44, 46, 47 or 49, in which the nozzle comprising an eyeball jet in a socket, in which a sealing means is provided towards the rear of the eyeball jet, between the eyeball jet and the socket thereby to at least partly prevent the flow of water around the exterior of the eyeball jet.

60. A nozzle for a bath, according to any one of Claims 1-4, 18-21, 27-30, 36-39, 45, 48 or 50, in which a sealing means is provided towards the rear of the eyeball jet, between the eyeball jet and the socket thereby to at least partly prevent the flow of water around the exterior of the eyeball jet.

61. A nozzle for a bath, according to Claim 59 or Claim 60, in which the sealing means comprises an O-ring.

62. A nozzle for a bath, according to Claim 61, in which the O-ring is a rubber O-ring.

63. A nozzle for a bath, according to any one of claims 59-62, in which the eyeball jet comprises a shoulder for receiving the sealing means.

64. A bath comprising at least one nozzle according to any one of the preceding claims in which the nozzle is located in a wall of the bath.

65. A nozzle for a bath, substantially as described herein and with reference to the drawings hereof.