Shower head rose

• US 6,241,166 B1
• Filed: 03/14/2000
• Issued: 06/05/2001
• Est. Priority Date: 03/27/1999
• Status: Expired due to Fees

• Current Assignee: Purdie Elcock Limited
• Original Assignee: Purdie Elcock Limited
• Inventors: Gauntlet, Leonard Paul, Overington, John
• Primary Examiner(s): Scherbel, David A.
• Assistant Examiner(s): EVANS, ROBIN OCTAVIA
• Application Number:
  US09/525,433
• Time in Patent Office: 448 Days
• Field of Search: 239/461, 239/462, 239/499, 239/504, 239/518, 239/523, 239/524, 239/548, 239/552, 239/553.3, 239/553.5, 239/554, 239/555, 239/558, 239/559, 239/567, 239/589, 239/590, 239/590.3, 239/590.5, 239/596, 239/DIG.23
• US Class Current: 239/553.3
• CPC Class Codes: B05B 1/083 the pulsating mechanism comprising movable parts liquid driven rotating elements, e.g. turbines, arranged upstream the outlet B05B3/04
• CPC Class Codes: Y10S 239/23 Screens

Abstract

A shower head has a first chamber defined in part by an outer wall or body and having an entrance bush to receive a supply of water which is deflected into the first chamber by a baffle on spaced legs depending from the bush. The shower head has a second chamber comprising an upper conical wall formed with a ring of openings therein through which water can pass from the first chamber into the second chamber. The second chamber has a lower wall or spray plate with fine water outlet apertures and also has an external peripheral rim at the level of the spray plate. The second chamber is a one-piece unit in which the upper conical wall is secured to the baffle by a screw threaded bolt acting to pull the second chamber into the first chamber and clamp the peripheral rim against a sealing ring pressing on an internal annular shoulder of the outer wall or body.

Claims

1. A shower head rose comprising:

a first chamber comprising

an outer wall and having

an entrance to receive a supply of water,

a second chamber defined by a second chamber wall comprising

a first wall part and

a second wall part,

said first wall part being formed with water inlets opening into the first and second chambers whereby water from the first chamber can enter the second chamber,

said second wall part being formed with water outlets through which water can emerge from the second chamber as relatively fine spray,

said second chamber being disposed in the outer wall and clamped thereto by connection means urging the second chamber in a direction towards said entrance, with respect to a general direction of water flow through the rose, said spray is to emerge from the second wall part at a downstream side of said second wall part, said downstream side being at an opposite side of said second wall part to an upstream side of the second wall part,

said connection means comprising a screw-threaded arrangement operable for pulling the second chamber towards said entrance, and said screw-threaded arrangement being within the outer wall and being wholly disposed to said upstream side of the second wall part.

2. A shower head rose according to claim 1, wherein the second chamber is an integral one-piece unit.

3. A shower head rose according to claim 1, wherein a baffle is mounted for water entering the first chamber through said entrance to impinge on the baffle, and the screw-threaded arrangement comprises a screw-threaded bolt engaging both the baffle and said first wall part of said second chamber, and the bolt is operable for pulling the second chamber towards the entrance.

4. A shower headrose according to claim 1, wherein the first chamber is provided with deflection means for the supply of water along a first direction through the entrance to impinge on the deflection means and be deflected into one or more paths each along a direction transversely to said first direction and towards a water deflecting inner surface of the first chamber in which said inner surface is spaced from aforesaid water inlets.

5. A shower head rose according to claim 1, wherein externally of the second chamber an outer surface of at least a portion of said first wall part is of a form which is generally bulging outwardly with respect to the second chamber.

6. A shower head rose according to claim 5, wherein said outwardly bulging form of said outer surface of said portion of the first wall part is of substantially conical shape.

7. A shower head rose according to claim 5, wherein said outwardly bulging form of said outer surface of said portion of the first wall part is of substantially segmental spherical shape.

8. A shower head rose according to claim 5, wherein the said outwardly bulging form of said portion of said first wall part faces in a general direction towards said entrance.

9. A shower head rose according to claim 5, wherein there is a number of said inlets each having a first side and an opposite second side, and the first side is nearer to a top of said outwardly bulging form of said portion of said first wall part than the second side of the water inlet is to a base of said outwardly bulging form of said portion.

10. A shower head rose according to claim 1, wherein a seal is provided between said outer wall and said second chamber wall, and said seal surrounds said second chamber wall and makes water-tight contact therewith and with said outer wall.

11. A shower head rose according to claim 10, wherein said seal is clamped between a shoulder on the outer wall and said second chamber wall.

12. A shower head rose according to claim 1, wherein said connection means is provided between the outer wall and comprises a screw-threaded arrangement for opposing separation of the second chamber wall.

13. A shower head rose according to claim 1, wherein said second chamber has an internal cross-sectional area in a plane transverse to emergent directions of aforesaid water spray from the second chamber, and said cross-sectional area is a plurality of times greater than a total cross-sectional area of the said water inlets.

14. A shower head rose according to claim 13, wherein the said internal cross-sectional area of the second chamber is at least twenty times greater than the said total cross-sectional area of said water inlets.

15. A shower head according to claim 14, wherein the said internal cross-section area of the second chamber is at least forty times greater than the said total cross-sectional area of said water inlets.

16. A shower head rose according to claim 1, wherein the said water inlets are disposed in an array about an axis of revolution of the second chamber.

17. A shower head rose according to claim 1, wherein said second wall part is a spray plate having a turned over peripheral rim clamping onto a peripheral rim of the first wall part and forming an external peripheral lip on the second chamber wall.

18. A shower head rose according to claim 17, wherein a seal is disposed between the lip and an abutment on said outer wall.

19. A shower head rose according to claim 1, wherein said outer wall extends beyond the second wall part thereby providing a skirt for surrounding the emergent spray.