WO2016179316A1 - Pomme de douche, concentrateur de fluide pour pomme de douche, et procédé - Google Patents

Pomme de douche, concentrateur de fluide pour pomme de douche, et procédé Download PDF

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Publication number
WO2016179316A1
WO2016179316A1 PCT/US2016/030830 US2016030830W WO2016179316A1 WO 2016179316 A1 WO2016179316 A1 WO 2016179316A1 US 2016030830 W US2016030830 W US 2016030830W WO 2016179316 A1 WO2016179316 A1 WO 2016179316A1
Authority
WO
WIPO (PCT)
Prior art keywords
showerhead
fluid
rotor
peripheral
water
Prior art date
Application number
PCT/US2016/030830
Other languages
English (en)
Inventor
Jere F. Irwin
Derek W. OZANICH
Original Assignee
Irwin Jere F
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US15/136,710 external-priority patent/US11229920B2/en
Priority claimed from US29/562,658 external-priority patent/USD800249S1/en
Application filed by Irwin Jere F filed Critical Irwin Jere F
Priority to EP16790039.8A priority Critical patent/EP3291920A4/fr
Priority to CA2988726A priority patent/CA2988726C/fr
Priority to CN201680040099.5A priority patent/CN107835719B/zh
Priority to KR1020177035143A priority patent/KR102511184B1/ko
Publication of WO2016179316A1 publication Critical patent/WO2016179316A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B05B15/652—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits whereby the jet can be oriented
    • B05B15/654—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits whereby the jet can be oriented using universal joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/06—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet by jet reaction, i.e. creating a spinning torque due to a tangential component of the jet
    • B05B3/063—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet by jet reaction, i.e. creating a spinning torque due to a tangential component of the jet using a member, e.g. a deflector, for creating the tangential component of the jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
    • B05B3/1014—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
    • B05B3/1021—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with individual passages at its periphery
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
    • E03C1/0408—Water installations especially for showers
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices

Definitions

  • the presently disclosed subject matter pertains to apparatus and methods for dispensing fluid such as water. More particularly, the presently disclosed subject matter relates to apparatus and methods for directing and disbursing water from a showerhead.
  • a showerhead having a housing, a perforate partition and a nozzle body.
  • the housing has a fluid inlet and a fluid outlet.
  • the perforate partition is provided in the housing between the inlet and the outlet and has at least one peripheral fluid passage communicating with the fluid inlet.
  • Each peripheral fluid passage communicates at a downstream end with an inwardly extending peripheral slot, and each slot communicates at a downstream end with a mixing cavity.
  • the nozzle body is carried by the housing downstream of the mixing cavity and has a compression port at an upstream end and an outlet port at a downstream end in fluid communication with the compression port.
  • a showerhead is provided having a housing, a baffle, and a nozzle body.
  • the housing has a fluid inlet and a fluid outlet.
  • the baffle is provided in the housing between the inlet and the outlet having at least one fluid passage extending into the baffle and communicating with the fluid inlet.
  • the at least one passage is configured to communicate with a radially inwardly extending fluid passage that communicates at an outlet end with a mixing cavity.
  • the nozzle body is carried by the housing downstream of the mixing chamber and has a compression stage at an upstream end and a fluid outlet at a downstream end in fluid communication with the upstream end.
  • a showerhead fluid concentrator having a housing and a baffle.
  • the housing has a fluid inlet and a fluid outlet.
  • the baffle is provided in the housing between the inlet and the outlet and has at least one peripheral fluid passage extending from the fluid inlet to the fluid outlet.
  • the at least one peripheral fluid passage terminates at a downstream end in an inward direction to communicate with a mixing cavity.
  • a method of dispersing water includes: providing a housing having a fluid inlet, a fluid outlet, and a baffle provided in the housing between the inlet and the outlet having at least one peripheral fluid passage that communicates with the inlet and extends through the baffle from the fluid inlet to the fluid outlet and
  • FIG. 1 is a perspective view illustrating a showerhead.
  • FIG. 1A is a component perspective view of a fluid hub and rotor assembly from the showerhead of FIG. 1.
  • FIG. 2 is a side view of the showerhead of FIG. 1.
  • FIG. 3 is a centerline sectional view of the showerhead of FIGS . 1 and 2 taken along line 3-3 of FIG. 2.
  • FIG. 4 is a centerline sectional view of the showerhead of FIG. 3 corresponding with the view in FIG. 3 but showing the bell housing assembly articulated to an angled position relative to the ball end mount.
  • FIG. 5 is a perspective view of a fluid hub from the showerhead of FIGS . 1 -4 taken from an upstream end.
  • FIG. 6 is a perspective view of a fluid hub from the showerhead of FIGS . 1 -4 taken from a downstream end.
  • FIG. 7 is an upstream end view of the fluid hub of FIGS . 5-6.
  • FIG. 8 is a centerline sectional view of the fluid hub taken along line 8-8 of FIG. 7.
  • FIG. 9 is a downstream end view of the fluid hub of FIGS . 5-8.
  • FIG. 10 is a side view of a nozzle body insert used in the showerhead of FIGS . 1 -4.
  • FIG. 11 is a centerline sectional view of the nozzle body insert of FIG. 10 taken along line 1 1 - 11 of FIG. 10.
  • FIG. 12 is an exploded side view with portions removed of the housing components of the showerhead assembly of FIGS . 1 -4.
  • FIG. 13 is a vertical sectional view taken along line 13- 13 of FIG. 12.
  • FIG. 14 is a side view of a rotor housing for the showerhead assembly of FIGS . 1 -4.
  • FIG. 15 is a centerline sectional view taken along line 15- 15 of FIG. 14.
  • FIG. 16 is a perspective view from an upstream end of a showerhead rotor insert body for the showerhead assembly of FIGS . 1 -4.
  • FIG. 17 is a side view of the showerhead rotor of FIG. 16.
  • FIG. 18 is a centerline sectional view taken along line 18- 18 of Fig. 17.
  • FIG. 19 is a downstream end view of the showerhead rotor of FIGS . 16-
  • FIG. 20 is a perspective view illustrating another showerhead.
  • FIG. 21 is a side view of the showerhead of FIG. 20
  • FIG. 22 is a centerline sectional view of the showerhead of FIGS . 20 and 21 taken along line 22-22 of FIG. 21.
  • FIG. 23 is a top end inlet view of the flow restrictor plug of FIG. 22.
  • FIG. 24 is a side view of a flow restrictor plug for the showerhead of FIGS . 20-22.
  • FIG. 25 is a centerline sectional view of the flow restrictor plug taken along line 25-25 of FIG. 24.
  • FIG. 26 is a top end view of an alternate rotor for the showerhead of FIG.
  • FIG. 27 is a side view of the rotor of FIG. 26.
  • FIG. 27A is a side view of a threaded fastener used to mount the rotor of FIG. 27.
  • FIG. 27B is an end view of the threaded fastener of FIG. 27A.
  • FIG. 28 is a centerline sectional view of the rotor taken along line 28-28 of FIG. 27.
  • FIG. 29 is a vertical sectional view of the rotor taken along line 29-29 of FIG. 26.
  • FIG. 30 is a top end view of a second alternate rotor for the showerhead of FIG. 20.
  • FIG. 31 is a side view of the rotor of FIG. 30.
  • FIG. 32 is a schematic diagram illustrating water flow outlet paths from each port on the spinner of FIGS . 30-31.
  • FIG. 33 is a perspective view illustrating yet another showerhead.
  • FIG. 34 is a top view of a flow deflecting rotor housing for the
  • FIG. 35 is a side view of the rotor housing of FIG. 34.
  • FIG. 36 is a centerline sectional view taken along line 36-36 of FIG. 35.
  • FIG. 37 is a perspective view illustrating even another showerhead.
  • FIG. 38 is a side view of the showerhead of FIG 37.
  • FIG. 39 is a centerline sectional view of the showerhead of FIGS . 38 and
  • FIG. 40 is a perspective view from an upstream end of a showerhead rotor for the showerhead assembly of FIGS . 37-39.
  • FIG. 41 is a side view of the showerhead rotor of FIG. 40.
  • FIG. 42 is a centerline sectional view of the showerhead rotor of FIG. 40 taken along line 42-42 of FIG. 41.
  • FIG. 43 is a perspective view from an upstream end of an alternative showerhead rotor, similar to the rotor depicted in FIG. 40, for use in the showerhead assembly of FIGS . 37-39.
  • FIG. 44 is a side view of the showerhead rotor of FIG. 43.
  • FIG. 45 is a centerline sectional view of the showerhead rotor of FIG. 43 taken along line 45-45 of FIG. 44.
  • FIG. 46 is a perspective view illustrating yet even another showerhead.
  • FIG. 46A is a component perspective view of a fluid hub and diverging conical nozzle from the showerhead of FIG. 46.
  • FIG. 47 is a side view of the showerhead of FIG. 46.
  • FIG. 48 is a centerline sectional view of the showerhead of FIGS . 46 and 47 taken along line 48-48 of FIG. 47.
  • FIG. 49 is a perspective view of a fluid hub from the showerhead of FIGS . 46-48 taken from an upstream end.
  • FIG. 50 is a perspective view of a fluid hub from the showerhead of FIGS . 46-48 taken from a downstream end.
  • FIG. 51 is an upstream end view of the fluid hub of FIGS . 46-48.
  • FIG. 52 is a centerline sectional view of the fluid hub taken along line 52- 52 of FIG. 51.
  • FIG. 53 is a downstream end view of the fluid hub of FIGS . 49-52.
  • FIG. 54 is a side view of a nozzle body insert used in the showerhead of FIGS . 46-48.
  • FIG. 55 is a centerline sectional view of the nozzle body insert taken along line 55-55 of FIG. 54.
  • FIG. 56 is an optional nozzle for the shower head of Figures 46-48 where perturbations, or interruptions are provided on an inner conical surface of the diverging cone nozzle
  • FIG. 57 is a centerline sectional view taken along line 57-57 of FIG. 56.
  • FIG. 58 is a second optional nozzle for the shower head of Figures 46-48 where the diverging cone nozzle has a converging segment upstream of the diverging cone
  • FIG. 59 is a centerline sectional view taken along line 59-59 of FIG. 58.
  • FIG. 60 is a Table of test results detailing water line pressures and flow rates for the embodiments of FIGS . 1 - 19, FIGS 46-55, and an exemplary prior art showerhead.
  • FIG. 61 is a Table of test results detailing water line pressures and flow rates for the embodiments of FIGS . 1 - 19 and FIGS 46-55 while incorporating three uniquely different flow restrictor plates.
  • FIG. 62 is a perspective view illustrating a sink faucet similar to the showerhead depicted in the embodiment of FIGS . 20-22.
  • FIG. 63 is a perspective view illustrating another sink faucet having a hub with a straight nozzle body insert.
  • Figure 1 is a showerhead.
  • Figures 1 - 19 illustrate in greater detail the showerhead according to one aspect where a spinner is driven by water leaving a nozzle from a mixing chamber to drive the spinner in rotation so as to eject water through multiple fluid ejecting ports.
  • FIG 1 illustrates a showerhead assembly 10 having a pod-shaped bell assembly, or housing 12 with a water emitting rotor, or spinner 14, according to one implementation.
  • Bell housing 12 includes a bell 16 that is secured onto a bell retainer 18.
  • Bell assembly 12 is captured for pivotal repositioning about a ball end fitting 20, as shown in Figures 2 and 3.
  • An array 31 of outlet apertures, or ports, 32 on rotor 14 emit water at an outlet end of showerhead assembly 10 as rotor 14 is driven to spin about a retaining fastener 24. Spinning action of rotor 14 is imparted by ejection of fluid, or water from ports 32 in one or more of two ways.
  • fluid is directed into a swirling motion within a housing, or mixing hub 26 in one of a clockwise and a counterclockwise direction.
  • fluid is mixed centrally within mixing hub 26 and is ejected through fluid ejecting ports 32, at least one of which is angled in a tangential direction to impart spinning to rotor 14.
  • mixing hub 26 directs through fluid passages or ports a plurality of distinct, converging fluid jets through individual passages that terminate in a central mixing chamber where the plurality of fluid jets, or passages intermix in an energetic state that is agitated, violent, and chaotic.
  • a spinning whirlpool, or rapidly rotating mass of water is imparted within mixing hub 26 from water being ejected under pressure via ports 32.
  • spinning action of rotor 14 is imparted by both swirling and angled fluid ejection.
  • FIG 1A illustrates mixing hub 26 and rotor 14 in assembly and removed from showerhead assembly 10 (of Fig. 1 ).
  • Rotor 14 is carried for rotation by a threaded fastener 24 at a downstream end of mixing hub 26.
  • a threaded end portion 82 on fastener 24 is affixed within a complementarily threaded bore 80 in mixing hub 26.
  • Mixing hub 26 delivers fluid under pressure through a nozzle body 69 into rotor 14, with the fluid being ejected from array 31 of fluid ejecting ports 32 while rotor 14 spins, thereby distributing water with
  • Mixing hub 26 has an outer retaining flange 64, a cylindrical outer seating surface 66, and a cylindrical outer surface 68.
  • ball end 20 is integrally formed at a downstream end of a ball end mount 22 which is used to mount showerhead assembly 10 in fluid sealed relation to a threaded pipe fitting installed in a shower or wash area.
  • Bell 16 and bell retainer 18 are assembled about ball end mount 22.
  • Ball end mount 22 includes a pair of flat tool surfaces 28 and 30 provided on opposite sides of mount 22, in opposed parallel relationship. Tool surfaces 28 and 30 are provided to receive a wrench when threading and unthreading showerhead assembly 10 from an outlet pipefitting. Rotor 14 is secured for rotation by fastener 24 to showerhead assembly 10.
  • Figure 3 is a vertical centerline sectional view of the showerhead assembly 10 of Figures 1 and 2.
  • An inlet fitting, or connector portion 34 is formed in ball end mount 22 of showerhead assembly 10 at an upstream end comprising a cylindrical female threaded portion 36.
  • Flats 28 and 30 are spaced apart to receive a wrench when threading portion 36 onto a complementarily threaded male pipe fitting of a water supply line.
  • a diffuser plate 40 is optionally received on a circumferential shelf provided on a transition between portion 34 and a cylindrical inlet bore 38. Water passes under pressure from a source through a plurality of flow restricting apertures 42 in diffuser plate 40 and into cylindrical bore 38. The number and size of apertures 42 in plate 40 can be varied in order to achieve a desired flow restriction.
  • Reduced diameter bore 44 concentrates and pressurizes water from bore 38 for delivery under pressure into chamber 46.
  • Mixing hub 26 and rotor 14 are mounted coaxially within a cylindrical recess 56 in bell assembly 12.
  • pressurized water enters mixing hub 26 at an inlet end along toroidal chamber 46.
  • Water from chamber 46 is directed in a radial outward direction where it enters a plurality of peripheral fluid ports 48 that communicate in an axial direction with a radially-inwardly-extending peripheral slot, or passage (see Fig. 6), each slot communicating at the outlet end with a common, or central mixing cavity 92.
  • Water is then mixed in chamber, or cavity 92 in one of a clock and a counter-clockwise direction.
  • a rotor insert body 17 is press-fit within a complementary rotor housing, or megaphone 15 to form rotor 14.
  • nozzle body insert 69 is press-fit within a cylindrical bore 70 of mixing hub 26.
  • a small radially inwardly extending lip flange is provided on a downstream end of a cylindrical wall portion 68 and nozzle body insert 69 is forcibly urged into bore 70 past such flange, entrapping nozzle body insert 69 within bore 70.
  • mixing hub 26 comprises a housing having a radially outwardly extending circumferential lip flange 64, a cylindrical mounting wall portion 66, and cylindrical wall portion 68.
  • a cylindrical bore 78 is sized to receive cylindrical wall portion 66 of mixing hub 26, while flange 64 seats atop and about bore 78.
  • a synthetic rubber gasket 62 is then seated atop flange 64 in a cylindrical gasket seat 76, entrapping and sealing mixing hub 26 within bore 78.
  • Gasket 62 also provides a sealed articulating joint between ball end 20 and bell assembly 12, whereas ball 20 is rotated relative to bell assembly 12 into one of a plurality of desirable angular orientations while gasket 62 seats and seals against ball 20 while retention shoulder 74 retains ball 20 within bell assembly 12.
  • Bell assembly 12 is formed in two pieces, a bell 16 and a bell retainer 18.
  • Threads 58 on bell retainer 18 couple in complementary threaded engagement with threads 60 on bell 16, enabling assembly and entrapment of ball 20 between seal 62 and retention shoulder 74.
  • water is energized as it passes through mixing hub 26, exiting in an energetic, swirling state and is concentrated and further pressurized by passing through a concentrating bore 50 having a frustoconical tapering portion 98 (see Fig. 1 1 ) of a nozzle body 69.
  • Water is ejected from bore 50 of nozzle body 69 in a pressurized and swirling state for delivery into an upstream end of a rotor, or spinner 14.
  • FIGS. 5-9 illustrate in detail one exemplary configuration for mixing hub, or housing 26.
  • hub 26 has a cylindrical outer wall portion formed at an upstream end by cylindrical flange portion 64, cylindrical wall portion 66, and cylindrical wall portion 68 formed at a downstream end.
  • a baffle, or bulkhead 84 is provided inside of, or centrally of cylindrical wall portion 68, and an upstream end of baffle 84 forms a conical inlet surface 86 having a plurality of circumferentially spaced-apart fluid ports, or passages 48 provided along an outer periphery of inlet surface 84 and equidistance from central threaded bore 80.
  • a toroidal chamber 46 is provided upstream of bulkhead 84, within portions 64, 66 and 68.
  • baffle 84 is formed within cylindrical wall portion 68 so as to provide bore 70 upstream of baffle 84.
  • Array of fluid ports 48 each communicate with a respective radially inwardly extending peripheral slot 72 formed out of a flat downstream outlet surface 88 of baffle 84 that terminates in a common central mixing cavity, or chamber 92.
  • Flange portion 64 and wall portion 66 are provided upstream of baffle 84, while threaded bore 80 is provided centrally of baffle 84 and coaxially within cylindrical wall portion 68.
  • a plurality of ports, or fluid passages 48 are provided in mixing hub 26 in an equidistant circumferential array from threaded bore 80 along an outer periphery of baffle 84 such that water is directed outwardly by conical inlet face 86 for passage into each port 48.
  • Flange portion 64 provides an outermost periphery of mixing hub, or housing 26.
  • Figure 8 further illustrates hub 26 in center sectional view with flange portion 64, wall portion 66 and wall portion 68 having progressively smaller diameters. Water enters hub 26 from an upstream end and is diverted radially outwardly by conical inlet face 86 of baffle 84 about threaded bore 80 and into ports 48.
  • a shoulder 90 is provided downstream of threaded bore 80 where bore 80 expands in diameter to form a clearance bore.
  • Mixing chamber 92 comprises a surface of revolution mixing chamber having an upstream end portion in the shape of an oblate spheroid.
  • Figure 9 depicts orientation of the array of passages, or peripheral slots 72 within mixing hub 26 that extend in a generally radially inward direction to impart mixing and swirling of water within central mixing cavity 92.
  • Fluid, or water enters each peripheral slot 72 at a radial outer end from a respective one of fluid passages, or ports 48 at an upstream end of hub 26 proximate flange portion 64.
  • Water is delivered from each port 48 through baffle 84 and into a radially inwardly extending peripheral slot 72 formed into flat outlet face 88 that terminates at a downstream end with a central mixing chamber, or cavity 92.
  • Each peripheral slot 72 extends radially inwardly towards central mixing cavity 92 while also extending at an angle relative to a radial direction in one of a clockwise and a counterclockwise direction. By imparting such angular incline relative the an absolute radial direction, the array of radially extending and circumferentially spaced apart peripheral slots 72 combine to impart fluid swirling and mixing within chamber 92 so as to impart a coherent whirlpool within mixing chamber 92.
  • Figures 10 and 1 1 Illustrate one implementation for nozzle body 69.
  • nozzle body 69 includes a backsplash preventer flange 94 provided on a downstream end and a leading edge chamfer 96 provided on an upstream edge.
  • water enters nozzle body 69 at an upstream end where it is compressed in a tapered frustoconical portion 98 and accelerated into a cylindrical bore 50 for delivery out of a downstream end of bore 50.
  • Assembly details of components for the bell housing and fluid coupler for connecting the showerhead assembly 10 of Figures 1 -4 are provided in exploded view with the mixing hub and rotor removed in Figures 12 and 13.
  • Bell 16 and bell retainer 18 are assembled together with respective threaded portions 60 and 58 to entrap a ball end 20 on a ball end component 19.
  • ball end 20 is retained in articulating and sealed engagement with gasket 62, enabling angular adjustment of bell 16 and retainer 18 relative to ball end mount 22 and an associated water supply pipe (not shown) to which it is affixed in sealed relation.
  • Flat surfaces 28 and 30 (see Fig. 12) mate with a wrench when affixing ball end component 19 via threads 36 of connector 34 (see Fig. 13) to a water supply pipe (not shown) .
  • One of a plurality of unique diffuser plates 40 each having a unique pattern of apertures (see Fig. 13) and fluid flow rate, is assembled within connector 34 and seated against shelf 37.
  • Ball end mount 22 is set apart from ball end 20 by a radially-inwardly extending circumferential groove 21 (see Fig. 12).
  • gasket 62 which is formed from an elastic material such as rubber, urethane, or some other suitable resilient, sealing material.
  • gasket 62 seats in sealing engagement within a cylindrical gasket seat 76 having a beveled outer circumferential end portion 77.
  • Circumferential groove 65 on gasket 62 is configured in assembly to receive cylindrical flange portion 64 on mixing hub 26 (see Figs. 3-4) in sealing engagement therebetween.
  • Spherically shaped ball end 20 engages in slidable and sealing relationship with a frustoconical sealing surface 63 on gasket 62.
  • housing 15 is a cylindrical housing having a series of progressively larger cylindrical inner bores 52, 54 and 55 extending from an upstream end to a downstream end.
  • Figures 16- 19 show details of rotor body 17 which is press fit along cylindrical outer peripheral surface 33 into bore 55 (see Fig. 15) while an inner cone 25 extends within and spaced from bores 52 and 54 (see Figs. 3-4).
  • Bore 54 in assembly provides a circumferential cavity defining a nacellete provided by bore 54 circumferentially about cone 25, as shown in assembly in Figures 3 and 4.
  • bore 54 is provided coaxially about cone 25.
  • Fluid ejecting ports 32 are provided in a circumferential equidistance spaced array about cone 25.
  • one port 32 extends parallel to cone 25 while other ports 32 extend at varying angles relative to cone 25 in order to provide varying fluid output angles of water spray from each respective port 32 while rotor body 17 spins with rotor housing 15.
  • Such angles further provide an angled surface that further drives rotor 14 in rotation responsive to water being driven under pressure through such angled ports 32.
  • Figure 16 illustrates a bearing surface bore 23 while Figure 18 shows a transition from bearing surface bore 23 to an expanded clearance bore 27 and a tapered bearing surface 35.
  • bearing surface bore 23 and tapered bearing surface 35 cooperate with corresponding surface portions on threaded fastener 24 (see Figs. 3-4) to provide a rotating bearing surface for rotor 14 as rotor 14 spins in non-contact relation with nozzle body insert 69 (see Figs. 3-4) .
  • Expanded clearance bore 27 serves to reduce contact surface area and friction between rotor 14 and fastener 24 (see Figs. 3-4).
  • rotor insert body 17 is formed from glass impregnated Nylon.
  • body 17 is formed from Nylatron®, plastic, composite material, steel, aluminum, brass, bronze, or any other suitable bearing surface and/or structural material.
  • body 17 can be formed with bearing surface inserts in-molded within a plastic or metal material used to form body 17, with bearing insert materials, such as bronze, provided along bearing surface bore 23 and tapered bearing surface 35.
  • Nylatron® is a trade name for a family of nylon plastics, typically filled with molybdenum disulfide lubricant powder, and is a brand name of DSM Engineering Plastics, Inc. of Wilmington, Delaware, and equity interest of Koninklijke DSM N.V..
  • mixing hub 26 and rotor housing 15 are formed from Nylatron®.
  • body 17 is formed from Nylatron®, plastic, composite material, steel, aluminum, brass, bronze, or any other suitable structural material.
  • FIGS 20-25 show details of another showerhead 210.
  • showerhead 210 has a rotor, or spinner 214 including a disk-shaped rotor housing 215 and an interchangeable rotor insert 217 carried for rotation by a threaded fastener 224.
  • An array 231 of fluid apertures, or ports 232 are provided in rotor insert 217 of rotor 214 arranged to provide a specific fluid spray pattern from rotor 214 while rotor 214 spins relative to a housing provided by bell 216 and bell retainer 18, and ball end mount 22. It is understood that array 213 of apertures 232 are arranged at different angles and have the same arrangement of angles shown for the apertures depicted in Figure 19.
  • rotor 214 of showerhead 210 has a curved disk- shape that complements an egg-shape of bell 216 and bell retainer 18.
  • rotor housing 215 and rotor insert 217 are secured together in a press- fit and they rotate responsive to fluid flow imparted against rotor 214.
  • the rotor housing and rotor insert can be made as a single part, for example, using three-dimensional printing of parts.
  • Disk-shaped geometry of rotor 214 also imparts a rotational moment of inertial to the rotating rotor 214, which imparts certain spin characteristics to rotor 214.
  • Ball end mount 22 is threaded in sealing engagement with a water supply pipe (not shown) using two flat tool surfaces 28 and 30 and a wrench (not shown), and ball end fitting 20 enables pivoting of bell retainer 18 and bell 216 relative to mount 22.
  • Figure 22 is a centerline sectional view of showerhead 210 illustrating how rotor 214 conformally completes an egg, oval or oblong sphere shape of a housing provided by bell 216 and bell retainer 18. More particularly, rotor 214 is sized in close proximity to an end opening in bell 216 such that no contact occurs between rotor housing 215 and bell 216. Rotor 214 is retained by rotor insert, or hub 217 via a threaded, recessed hexagonal head fastener 224 that is threaded into engagement within a complementary threaded hole in hub 26.
  • Insert 217 has an outer diameter that is press with an interference fit within a cylindrical bore 255 within rotor housing 215.
  • rotor 215 is retained axially by an enlarged head of fastener 224 in spaced relation from a nozzle body 269 as press-fit within a wall portion 68 of mixing hub 26.
  • a tapering stem on rotor insert 217 extends coaxially within bore 254, bore 252, tapered frustoconical portion 298 and the mixing chamber of hub 26, as shown in Figure 22.
  • a flow limiting device, or flow restrictor plug 240 is seated centrally within a bore 238 of ball end mount 22.
  • plug 240 can be seated in an offset location within a bore provided within ball end mount 22 and it is not necessary that is it provided centrally of mount 22.
  • a plurality of flow ports 242 meter fluid flow through plug 240 and into a downstream cylindrical chamber 280 (see Fig. 25) .
  • rotor insert 217 can be constructed from an Ultra- Wear-Resistant PTFE-Filled Delrin® Acetal Resin.
  • PTFE Ultra- Wear-Resistant PTFE-Filled Delrin® Acetal Resin.
  • the addition of PTFE to Delrin® acetal resin provides this water-resistant material with a
  • Such material is also known as Delrin® acetal resin AF and is catalogued and sold by McMaster-Carr, 9630 Norwalk Blvd., Santa Fe Springs, CA 90670-2932.
  • restrictor plug 240 has a circumferentially spaced-apart array of fluid flow ports 242 extending from an upstream end to a common, or central chamber 288 (see Fig. 25) formed by a cylindrical wall portion, or bore 280 and an upper frustoconical chamber head 282.
  • Restrictor plug 240 has an enlarged cylindrical outer wall portion 281 and a reduced diameter ensmalled cylindrical outer wall portion 286, as shown in Figures 24 and 25.
  • a circumferential shoulder 284 is formed at the transition point between wall portions 281 and 286, as shown in Figure 25.
  • wall portion 286 is sized to be received in a force-fit assembly within bore 244 (see Fig. 22) .
  • Apertures 232 of Figures 20 and 22 are fed a supply of accelerated and spinning fluid via cylindrical bores 252 and 254 from mixing hub 26.
  • a whirlpool of accelerated and spinning water impinges against entrance end of each aperture 232, acting as a turbine blade and driving rotor 214 to spin.
  • angled ejection of fluid from apertures 232 further drives rotor
  • apertures 232 are generally larger than traditional apertures on a showerhead. This feature creates larger drops generally compared to the much smaller drops created by a traditional showerhead having a larger number of smaller apertures, or outlet holes.
  • the showerhead uses only 9 relatively large outlet apertures, versus a typical showerhead that has a much larger number of outlet apertures, albeit of substantially smaller size.
  • the provided nine outlet apertures 232 of Figures 20 and 22 rotate via rotor, or spinner 214 which serves to further spread water evenly as it is being ejected from rotor 214.
  • Larger size apertures tend to distribute larger water drops than do smaller size apertures.
  • Larger size droplets cool less quickly than do smaller size droplets, thereby providing a warmer shower (for a given amount of supplied hot water) .
  • the showerhead 210 of Figures 20-22 generates a massage output spray of water.
  • Five successive apertures have a common tilt or angle relative to an outlet face of the rotor 214, which a remaining 4 apertures have progressively smaller angles (or zero angle) apertures.
  • the five apertures with a common angle form a conical spray pattern and the smaller angle apertures aim fluid outlet flow within the conical spray pattern, thereby imparting the feel of a massage spray as the rotor 214 spins.
  • Such conical spray pattern generally has a smaller angle than those generated by traditional showerheads in order to reduce water usage.
  • a massage feel is imparted by interruption of the holes forming the conical spray pattern by holes aimed toward the center of the pattern.
  • showerheads are shown herein with flow restricting devices, it is understood that such devices can be removed and the showerhead will still work. Additionally, or optionally, the water supply can be restricted at a source to reduce the flow rate, thereby saving water usage while still maintaining a vigorous distribution of water droplets suitable for taking a shower.
  • FIGs 26-29 illustrate an optional rotor insert 1217 for the showerhead of Figures 20-22. More particularly, as shown in top end view, rotor insert 1217 has an array of progressively changing angled apertures, or fluid ports 1232 similar to the array in rotor insert 217 (of Fig. 22). However, additional non- circular cross-section, or oblong apertures 1233 are also provided in order to impart fluid distribution inside a fluid outlet cone generated by fluid being ejected by remaining apertures 1232. Hence, apertures 1233 on rotor insert 1217 fill the inner spray region left unfilled by fluid being ejected solely from apertures 1232. Circumferential outer surface 1230 is received in assembly within cylindrical bore 255 of showerhead 210 (see Fig. 22) in an alternate assembly.
  • rotor insert, or hub 1217 has a reduced inner diameter bore that forms a bearing surface with fastener 224 (see Fig. 22) having reduced surface area and frictional contact. A remaining contact portion is formed where a head of fastener 224 contacts rotor insert 1217 along frustoconical taper 1235 (see Fig. 28). As shown in Figures 27 and 28, rotor insert 1217 has a progressively increasing set of staged bore segments 1223, 1224, and 1227, ending in frustoconical taper 1235 at an opposite end from bore segment 1223.
  • a surrounding outer surface on hub 1217 forms a frustoconical, or tapering outer surface 1225 that is pierced at a widest-most portion, adjacent to enlarged circumferential outer surface 1230, by individual apertures 1233.
  • Figures 27A and 27B show details of fastener 224. As shown in Figures 28 and 29, apertures 1232 do not pierce surface 1225, but instead are formed solely within enlarged circumferential outer surface 1230.
  • Fastener 224 of Figure 27A includes a reduced diameter portion 221 that is sized to form a distal end bearing surface with bore 1223 on rotor 1217 of Figure 27 (or rotor 217 of Fig. 22) .
  • Portion 221 has a distal threaded end portion 80 formed in portion 221 that is threaded into engagement in assembly within a complementary threaded female bore in hub 26 (see Fig. 22) .
  • An increased diameter portion 223 is received within complementary bore 1227 of rotor 1217 (or rotor 217 of Fig. 22) .
  • a highly polished shoulder 227 on a fastener head 225 of fastener 224 provides a bearing surface for rotor 1217 of Figure 27 (or rotor 217 of Fig. 22) .
  • Figure 27B shows fastener 224 having one suitable hex head fastener head 225. Other forms of fastener can optionally be used.
  • FIGs 30 and 31 illustrate another optional rotor for the showerhead of FIG. 20. More particularly, rotor insert 2217 can be substituted for rotor 217 in showerhead assembly 210 of Figures 20-22.
  • rotor insert 2217 has a circumferential array of fluid apertures, or ports 2233, 2235, 2237, and 2239 provided with a region defined by circumferential tool surface 1230.
  • Apertures 2233, 2235, and 2237 are angled in a direction perpendicular to a radial direction. Apertures 2233 have a greater angle than aperture 2235 and aperture 2235 has a greater angle than aperture 2237.
  • Aperture 2239 has no angle and extends in an axial direction.
  • fluid ejected from aperture 2237 is designed to intersect fluid that is ejected from aperture 2239, causing fluid to disperse laterally of the impact region, including in a radially inward direction.
  • fluid is delivered within a central region of where fluid would other be delivered solely by the directional output from individual apertures 2233, 2235, 2237 and 2239.
  • Figure 32 is a schematic diagram illustrating water flow outlet paths from each port on the spinner of Figures 30 and 31. Such water flow outlet paths contemplate the effects that centrifugal forces impart on each water flow outlet path.
  • Each water flow outlet path is numbered with the respective aperture from which it originates, showing how the water flow outlet paths from apertures 2237 and 2239 intersect after leaving the rotor insert 2217 of the showerhead.
  • the water flow outlet paths from apertures 2233 and 2235 do not collide with any other outlet path, but they define distinctive angular pathways.
  • Figure 33 is a perspective view illustrating yet another showerhead 3 10 having a rotor, or spinner 314 with an array 33 1 of fluid outlet apertures 332 and an arcuate, inwardly extending fluid deflecting finger 337 configured to deflect fluid from some of apertures 332 to cause fluid to be delivered within a flow path generated solely by apertures 332.
  • Finger 337 is integrally formed from a rotor housing 3 15.
  • Rotor 3 14 is affixed via a threaded fastener 24 to mixing hub 26 in a manner similar to previously described embodiments.
  • showerhead 3 10 also includes parts common to previously described embodiments including ball end mount 22 with tool surfaces such as surface 28 and housing 12 including bell 16 and bell retainer 18.
  • Figures 34-36 illustrate rotor housing 315 including the arcuate, inwardly extending fluid deflecting finger 337.
  • a cylindrical bore 355 is sized to receive in press fit a rotor insert (such as rotor insert 217 (of Fig. 22).
  • Cylindrical bores 352 and 354 are analogous to bores 252 and 254 (of Fig. 22) and serve to delivery fluid, or water to apertures in the rotor insert.
  • Figure 37 is a perspective view illustrating even another showerhead 410 having a rotor, or spinner 414 that has an array 431 of fluid dispersing grooves, or slits 432 at an upstream end.
  • Spinner 414 is carried for rotation via a threaded fastener 424 by mixing hub 26.
  • Fluid is ejected from hub 26 in a spinning clockwise or counterclockwise direction (depending on direction of asymmetry provided in hub 26), impacting an upstream end of spinner 414 and ejecting from grooves 432 which are arranged so as to impart spinning to spinner 414. Ejected, spinning fluid, or spray then impacts an inner
  • Housing 412 of showerhead 410 is formed from bell retainer 18 and fluted bell 416 having a circumferential array of equally spaced-apart flutes 417 provided in an outer surface, as shown in Figures 37 and 38.
  • Housing 412 is pivotally affixed to ball end mount 22 and flutes 417 aid a using when gripping housing 412 to rotate angular position relative to ball 20 on ball end mount 22.
  • Flat tool surfaces 28 and 30 aid in threading mount 22 onto a threaded pipe end (not shown) .
  • Downstream end of rotor 414 protrudes slightly from housing 412, along with threaded fastener 424.
  • Figure 39 illustrates showerhead 410 in centerline sectional view. More particularly, water is delivered from a water supply line in a shower into ball end mount 422, within cylindrical bore 438, through apertures 242 in diffuser, or flow restrictor plug 240 from plug 240 into toroidal chamber 46, through radially inwardly extending passage 72, into centrally located common mixing chamber 92, into tapered frustoconical portion 98, and into cylindrical bore 50 where water is ejected under pressure in a swirling clockwise or
  • rotor 414 has a reduced diameter bearing surface bore 423 and a frustoconical bearing surface recess 435 that engage for rotation against shaft and head portions of threaded fastener 424 (see Fig. 39) .
  • a male threaded end portion 82 of fastener 424 is received in threaded
  • mount 422 is threaded via female threads 36 using a wrench or by hand tightening to engage longitudinal grooves 421 formed in a cylindrical outer surface of mount 422 onto a respective male threaded end portion of a water supply pipe, such as a shower water line outlet (not shown).
  • mount 422 can have any of a number of different connection interfaces, such as a male threaded portion, a quick disconnect portion, or any other suitable structure for affixing a
  • showerhead in sealing relation with a water supply line.
  • Figure 40 depicts an upstream end of showerhead rotor 414 for the showerhead assembly of Figures 37-39. More particularly, a radial array of slits, or fluid passages 432 are provided circumferentially spaced apart around central cylindrical bearing surface, or bore 423, providing an aperture 427 for receiving fastener 424 (see Fig. 39) . As shown in Figures 40-42, slits 432 on rotor 414 are equally spaced apart around toroidal segment surface 452 and extend outwardly in a radial direction. Optionally, slits 432 and extend at one or more angles from a radial direction and/or slits 432 can be spaced apart unevenly around surface 452.
  • bore 427 is enlarged relative to bore 423 so as to reduce contact surface area with fastener 424 (see Fig. 39) in assembly so as to reduce contact friction therebetween and enhance rotation, particularly under low water pressure and flow conditions dictated by efforts to conserve water when taking a shower.
  • FIG 43 illustrates from an upstream end an optional showerhead rotor 514, similar to rotor 414 depicted in Figure 40, for use in the showerhead assembly of Figures 37-39. More particularly, rotor 514 has a toroidal segment surface, or dished-out doughnut-shaped cavity 552 that is devoid of any slits,, as shown in Figures 43 and 45. A pressurized swirling output of water impinges on surface 552 to impart, in some cases, motion to rotor, or fluid dispersion body 514 where forces overcome frictional forces between surface 523 and 535 with fastener 424 (see Fig. 39) . In other cases, rotor 514 does not spin, but instead acts as a fluid dispersion surface. Aperture 527 has an enlarged bore portion 527 that serves to reduce contact surface area of surface 523 between rotor 5 14 and fastener 424 (see Fig. 39) .
  • FIGs 46-59 illustrate yet even another showerhead 510 where a diverging cone, or expansion nozzle 5 14 ejects spinning, ejecting water from the showerhead 5 10 via a diverging conical outlet port 532.
  • showerhead 510 are similar to showerhead 10 of Figures 1 - 19, except that rotor 14 has been eliminated and mixing hub 526 is essentially the same as mixing hub 26 (see Figs. 1 - 19), save for elimination of threaded bore 80.
  • Water is directed into a spinning whirlpool, or rapidly rotating mass of water, through a perforate partition, or baffle, provided in the housing of mixing hub 526 as depicted in Figures 46 and 46A.
  • Housing 12 and ball end fitting 22 of showerhead 5 10 remain essentially the same as housing 12 and ball end fitting 22 in Figures 1 -3, with bell 16, bell retainer 18, and flat tool surfaces 28 and 30 (see Fig. 47) being common with the prior version.
  • expansion nozzle, or cone 5 14 is integrally formed with cylindrical nozzle body 569.
  • Body 569 is press-fit into wall portion 568 of mixing hub 526 (see Fig. 48) .
  • mixing hub 526 Similar to mixing hub 26 (of Figs. 1 -3), mixing hub 526 has a cylindrical flange portion 564 and an increased diameter cylindrical wall portion 566.
  • expansion nozzle 5 14 extends beyond housing 12, as does ball 20 at an opposite end.
  • Figure 48 shows showerhead 510 in centerline sectional view.
  • Expansion nozzle 514 is formed integrally with a diverging cone 515 and a cylindrical nozzle body 569 and is provided centrally within cylindrical bore 56.
  • An inner frustoconical surface 532 of cone 515 receives a highly energized supply of swirling fluid, or water from bore 550 by way of passage through threaded bore 36, diffuser plate 40, cylindrical bores 38 and 44, toroidal chamber 46, peripheral ports 548, peripheral passage 572, and common mixing chamber 592.
  • Mixing hub 526 is operative to mix and swirl fluid in chamber 592 as a result of the radially angled orientation of peripheral passages 572 (see Fig. 50).
  • Ball end fitting 20 on ball end mount 22 affixes with threads 34 to a threaded end portion of a water supply line (not shown) and bell 16 and bell retainer 18 entrap ball 20 in assembly in sealing, pivotally repositionable engagement with rubber gasket 62 in cylindrical gasket seat 76.
  • a flange portion 564 of hub 526 seats with bell 16 and seals against gasket 62 in assembly.
  • An outer diameter of nozzle body 569 is urged into press-fit assembly within a cylindrical bore 570 of hub 526.
  • mixing hub 526 delivers fluid under line pressure from an upstream end (see Figs. 49 and 5 1 ) to a downstream end (see Figs. 50 and 53) through fluid ports, or passages 548. More particularly, fluid passes under line pressure from an upstream end through axially extending fluid ports 548 into angled and radially inwardly directed peripheral fluid passages 572 (see Figs. 50 and 53).
  • Hub 526 omits hole 80 provided in hub 26 (of Fig. 3), but it is understood that one alternative construction includes such hole and uses hub 26 in place of hub 526. In such case, fastener 24 is omitted and water merely passes through hole 80.
  • showerhead 910 of Figure 63 can optionally omit such hole in the hub.
  • fluid passages 572 induce clockwise swirling and mixing of fluid from passages 572 within mixing cavity, or chamber 592 (see Figs. 50 and 53) .
  • passages 572 can be oriented to induce swirling in a counterclockwise direction.
  • some or all of passages 572 can be configured to extend solely in a radially inward direction.
  • ports 548 extend axially through cylindrical baffle 584 and are equally spaced apart circumferentially in a cylindrical array about an outer periphery of baffle 584.
  • baffle 584 has a conically-shaped upstream inlet surface, as well as a flat outlet surface 588 (see Figs. 50 and 53) .
  • Mixing chamber 592 is provided radially inwardly of surface 584, as shown in Figures 50 and 53.
  • Flange portion 564, wall portion 566 and wall portion 568 encircle an interior region within hub 526 divided by baffle 584 into an upstream end and a downstream end, as shown in Figures 49-52.
  • Figure 52 illustrates upstream end encircled by flange portion 564, wall portion 566, and an upstream segment of wall portion 568 and bounded by conical inlet surface 586 of baffle 584, while the downstream end is encircled by a downstream segment of wall portion 568.
  • Fluid enters peripheral ports 548 in an axial direction, then turns generally radially inwardly along peripheral passages 572.
  • Cylindrical bore 570 is sized to receive an outer diameter surface of nozzle body 569 (see Fig. 54) in press-fit relation.
  • Figures 54 and 55 illustrate a unitary construction of expansion nozzle 5 14, including cylindrical nozzle body portion 569 integrally formed with diverging cone 5 15. Additionally, cylindrical bore 550 of nozzle 514 has a flared expansion outlet 55 1 and a flared compression inlet 553. Water is ejected from mixing hub 526 under pressure with speed and induced to swirl. Such ejected swirling fluid is passed through bore 550 and expended and directed through a frustoconical inner surface 532 of diverging cone 515.
  • Figures 56-57 illustrate an optional nozzle 614 for the showerhead of Figures 46-48 where perturbations, or interruptions 633 are provided on an inner conical surface 632 of the diverging cone nozzle 615.
  • Cylindrical nozzle body portion 669 is received in press-fit assembly within bore 570 of wall portion 568 on hub 526 (see Fig. 48).
  • Interruptions 633 comprise semi-cylindrical grooves formed in surface 632.
  • other forms of concave or convex structures can be provided to interrupt the flow of swirling fluid being ejected from bore 650 through conical surface 632 such as splines, ribs or even angled grooves or ridges. Such interruptions serve to further break up and disperse the swirling and ejecting fluid as it expands and passes out of conical surface 632.
  • Figures 58-59 illustrate a second optional nozzle 714 for the showerhead of Figures 46-48 where the diverging cone nozzle 715 has a converging segment 750 upstream of the diverging cone 732.
  • Cylindrical nozzle body portion 769 is received in press-fit assembly within bore 570 of wall portion 568 on hub 526 (see Fig. 48) .
  • a circumferential lip edge 75 1 provides a sharp transition from converging segment 750 and diverging cone 732, as shown in Figure 59.
  • Edge 75 1 provides a constriction that serves, at least in part, to accelerate fluid flow past edge 751 where it expands downstream into diverging cone 732.
  • Figure 60 is a Table of test results detailing water line pressures and flow rates for the embodiments of Figures 1 - 19, FIGS 46-48, and an exemplary prior art showerhead, a Waxman Model No. 7651000T, sold by Waxman, 24460 Aurora Road, Bedford Heights, Ohio 44146. and having UPC 28905765107.
  • Figure 61 is a Table of test results detailing water line pressures and flow rates for the embodiments of Figures 1 - 19 and Figures 46-48 while
  • Figure 62 is perspective view illustrating a kitchen sink 892 having a faucet 890 with a spray head 810 similar to the showerhead depicted in the embodiment of Figures 20-22, but scaled down in size. More particularly, spray head 810 is shown in greater detail in an enlarged inset circle having parts common with showerhead 210 (of Figs. 20-22). For example, ball end 20, ball end mount 22, flow restrictor plug 240, bell 816, bell retainer 18, wall portion 68, nozzle body 869 and rotor 814 are constructed in a manner similar to corresponding parts on showerhead 210 (of Figs. 20-22) .
  • Figure 63 is a side view illustrating a kitchen sink 992 having another faucet 990 with a spray head 910 having a straight nozzle body insert 950.
  • nozzle body insert 950 is press-fit via cylindrical nozzle body 969 within a complementary bore in cylindrical wall portion 68, as shown in an enlarged inset circle.
  • Flow restrictor plug 240, bell 916, bell retainer 18, wall portion 68, and nozzle body 969 are constructed in a manner similar to corresponding parts on showerhead 210 (of Figs. 20-22) .
  • Bore 950 comprises a cylindrical bore that receives swirling water under pressure from wall portion 68 of the mixing hub.
  • the showerhead previously described can further include a coupler communicating with the body and adapted for connection to a water supply pipe.
  • the showerhead has peripheral slots that extend in a radial inward direction, forming an array of substantially radially extending and
  • the housing includes an array of generally radially extending spider arms each adjacent pair separated by one of the peripheral ports and a respective one of the peripheral slots to provide the perforate partition.
  • the housing includes a tubular body.
  • the tubular body has a cavity provided at a downstream end.
  • the cavity includes a cylindrical bore.
  • the nozzle body has an outer surface sized to fit in interference fit within the cavity.
  • the tubular body further includes an inwardly extending lip edge formed on the downstream edge of the cavity sized to overlie, in assembly, the nozzle body received within the cavity.
  • the nozzle body is sized to be received within the cavity with a self-retaining fit-up.
  • the through-passage comprises an aperture. More particularly, in some cases the through passage comprises an axial cylindrical bore. In some cases, the through passage comprises a plurality of grooves provided along an inner wall portion. In some cases, the through-passage comprises a conical wall portion having a plurality of ridges/grooves interrupting the wall portion. Also in some cases, the nozzle body comprises a cylindrical base and an expanding exit portion.
  • the expanding exit portion comprises a diverging conical chamber.
  • the nozzle body comprises an expansion chamber.
  • the nozzle body comprises a compression chamber.
  • the center support post comprises an elongate fastener having a retention head configured to retain the rotor for rotation about a central shaft of the fastener.
  • the elongate fastener has a threaded end portion and the baffle comprises a complementary threaded aperture sized to receive the threaded end portion.
  • the rotor comprises an outer housing and a central insert portion, the at least one fluid ejecting port provided by at least one of the outer housing and the central insert portion.
  • the central insert portion is mounted coaxially within an expansion chamber of the outer housing.
  • the rotor comprises a radially-outwardly extending groove provided in the frustoconical feed cavity proximate a distal end of the rotor operative to inhibit backsplash of fluid between the rotor and the nozzle body.
  • the nozzle body comprises a circumferential backsplash lip extending from a distal end of the nozzle body in overlapping relationship with the rotor.
  • at least one of the fluid ejecting ports is angled in a direction perpendicular to a radial direction of the rotor.
  • a showerhead having a housing, a baffle, and a nozzle body.
  • the housing has a fluid inlet and a fluid outlet.
  • the baffle is provided in the housing between the inlet and the outlet having at least one fluid passage extending into the baffle and communicating with the fluid inlet.
  • the at least one passage is configured to communicate with a radially inwardly extending fluid passage that communicates at an outlet end with a mixing cavity.
  • a nozzle body is carried by the housing provided downstream of the mixing chamber and having a compression stage at an upstream end and a fluid outlet at a downstream end in fluid communication with the upstream end.
  • the showerhead includes a rotatable fluid ejecting rotor supported proximate and downstream of the nozzle body fluid outlet in non-contact relation and having at least one fluid ejecting port.
  • the showerhead includes a coupler communicating with the body and adapted for connection to a water supply pipe.
  • the central mixing chamber is formed as a surface of revolution.
  • the central mixing chamber is an end portion of an oblate spheroid.
  • the nozzle body includes a tubular body having a fluid through-passage.
  • the through-passage includes a cylindrical bore.
  • the through-passage further includes a frustoconical compression nozzle provided upstream of the cylindrical bore.
  • the through-passage includes a cylindrical bell-shaped expansion nozzle. In other cases, the through-passage comprises a reduced-diameter compression segment provided upstream of the expansion nozzle. In certain cases, the through-passage includes an array of circumferentially spaced-apart inner surface perturbations formed in an axially-diverging direction along a downstream end portion of the expansion nozzle. In some cases, the housing has a bore in a downstream end and the nozzle body has a complementary peripheral outer wall sized to be received in assembly within the downstream bore in captured relation therein.
  • the showerhead further includes a a center support post carried by the baffle centrally of the outlet chamber and a rotor carried for rotation within the outlet chamber downstream of the nozzle by the center support post in proximate, non-contact relation with the nozzle.
  • the rotor has at least one fluid ejecting port provided at a distal end, an annular cavity communicating with the ports upstream of the ports, and a frustoconical feed cavity communicating with the nozzle body and the annular cavity, the rotor is provided in spaced, non-contact relation with the nozzle body.
  • the baffle includes a convex central hub extending from an upstream surface of the baffle.
  • the rotor includes an annular inlet provide at an upstream end leading to at least one outlet provided in fluid communication at a downstream end.
  • the nozzle includes a cylindrical backsplash preventer tube end extending from a downstream end of the nozzle within the annular inlet of the rotor.
  • the housing includes a hub having a cylindrical body with an inlet end and an outlet end, and a radially outwardly extending flange provided along the inlet end.
  • the housing further includes a bell housing having a bore in which the hub is received and a resilient circumferential washer received within a bore in the bell housing upstream and adjacent the bore sized to overlie the flange on the hub in assembly to seal the hub within the bell housing.
  • the showerhead can further include a coupler communicating with the bell housing adapted at an upstream end for connection to a water supply pipe and having a ball end at a downstream end adapted to seat in rotatable and sealing relation against the circumferential seal within the bell housing.
  • the rotor has an ensmalled diameter portion bore along an upstream end, an enlarged diameter portion bore along both a medial portion and a downstream end, and a tapered end bore along a downstream end
  • the center post has an enlarged head at a downstream end with a tapered flared head complementary to the tapered end bore such that the rotor forms a rotating bearing surface with the center post solely along the ensmalled diameter portion bore and the tapered end bore and the rotor, in further regards, remains contact free of the nozzle.
  • the rotor includes a frustoconical feed cavity provided along a proximal end of the rotor and a fluid ejecting port provided at a distal end of the rotor and communicating with the feed cavity.
  • the rotor further includes a radially outwardly extending circumferential groove provided in the frustoconical feed cavity proximate a distal end of the rotor communicating with the feed cavity to prevent backsplash of fluid between the rotor and the nozzle body.
  • the nozzle body includes a circumferential backsplash lip extending from a distal end of the nozzle body in overlapping relation with the rotor.
  • the rotor includes a plurality of fluid ejecting ports distributed circumferentially about a distal end of the rotor, the fluid ejecting ports extend in an axial direction. In certain cases, the fluid ejecting ports extend in a radial direction. In other cases, at least one of the fluid ejecting ports extends in both a tangential direction and an axial direction. In some cases, the at least one of the fluid ejecting ports further extends in a radial direction. In other cases, the rotor comprises an outer housing and an insert portion carried within the housing defining the frustoconical feed cavity. A showerhead fluid concentrator is provided including a housing and a baffle.
  • the housing has a fluid inlet and a fluid outlet.
  • the baffle is provided in the housing between the inlet and the outlet has at least one peripheral fluid passage that extends from the fluid inlet to the fluid outlet.
  • the at least one peripheral fluid passage terminates at a downstream end in an inward direction to communicate with a mixing cavity.
  • the mixing chamber is located centrally of the housing.
  • the at least one peripheral fluid passage comprises a plurality of fluid apertures configured to extend in a generally radially inward direction offset from a direct radial path to provide one of a clockwise and a counterclockwise fluid motion within the mixing chamber.
  • the at least one peripheral fluid passage includes a plurality of fluid apertures configured to extend solely in a radially inward direction along a direct radial path to provide impinged mixing within the mixing chamber. In certain cases, the at least one peripheral fluid passage includes a plurality of fluid apertures with at least some of the plurality of fluid apertures configured to extend in a generally radially inward direction offset from a direct radial path.
  • the showerhead further includes a center support post carried by the baffle centrally of the outlet chamber and through the flow concentrating outlet, and a rotor carried for rotation by the post downstream of the nozzle body having at least one fluid ejecting port provided at a distal end, an annular cavity communicating with the at least one port upstream of the at least one port, and a frustoconical feed cavity communicating with the nozzle body and the annular cavity, the rotor provided in spaced, non- contact relation with the nozzle body.
  • the housing includes a cylindrical body having a surface of revolution mixing chamber.
  • at least one of the peripheral slots extends in a radially inward direction.
  • the peripheral slots form an array of radially extending and circumferentially spaced apart peripheral slots.
  • the at least one peripheral fluid passage includes a plurality of fluid apertures and all of the at least one of the peripheral slots extend at an angle relative to a radial inward direction in one of a clockwise and a counterclockwise direction to impart a coherent whirlpool within the mixing chamber.
  • each of the plurality of ports is provided along an outer periphery of the baffle, spaced from a central portion of the baffle.
  • the step of mixing includes directing water from each of the plurality of ports along a radially inward direction to impinge and mix the water within the mixing chamber.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Nozzles (AREA)

Abstract

L'invention concerne une pomme de douche munie d'un boîtier, d'une cloison perforée et d'un élément buse. L'élément buse présente une entrée de fluide et une sortie de fluide. La cloison perforée est placée dans le boîtier entre l'entrée et la sortie et présente au moins un passage de fluide périphérique communiquant avec l'entrée de fluide. Chaque passage de fluide périphérique communique au niveau d'une extrémité aval avec une fente périphérique s'étendant vers l'intérieur, et chaque fente communique au niveau d'une extrémité aval avec une cavité de mélange. L'élément buse est supporté par le boîtier en aval de la cavité de mélange et comporte au niveau d'une extrémité amont un orifice de compression et au niveau d'une extrémité aval un orifice de sortie en communication fluidique avec l'orifice de compression. L'invention concerne également un procédé.
PCT/US2016/030830 2015-05-05 2016-05-04 Pomme de douche, concentrateur de fluide pour pomme de douche, et procédé WO2016179316A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP16790039.8A EP3291920A4 (fr) 2015-05-05 2016-05-04 Pomme de douche, concentrateur de fluide pour pomme de douche, et procédé
CA2988726A CA2988726C (fr) 2015-05-05 2016-05-04 Pomme de douche, concentrateur de fluide pour pomme de douche, et procede
CN201680040099.5A CN107835719B (zh) 2015-05-05 2016-05-04 喷淋头以及分散水的方法
KR1020177035143A KR102511184B1 (ko) 2015-05-05 2016-05-04 샤워헤드, 샤워헤드 유체 집중 장치, 및 방법

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US201562157334P 2015-05-05 2015-05-05
US62/157,334 2015-05-05
US15/136,710 US11229920B2 (en) 2015-05-05 2016-04-22 Showerhead, showerhead fluid concentrator, and method
US15/136,710 2016-04-22
US29/562,658 USD800249S1 (en) 2016-04-27 2016-04-27 Showerhead
US29/562,658 2016-04-27

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CN109876937A (zh) * 2019-03-30 2019-06-14 横店集团英洛华电气有限公司 自旋转式喷头
CN109945493A (zh) * 2018-12-31 2019-06-28 广西天健新能源设备有限公司 高效导流保温水箱
US20210331183A1 (en) * 2020-04-24 2021-10-28 Applied Materials, Inc. Fasteners for coupling components of showerhead assemblies
CN113927382A (zh) * 2020-07-14 2022-01-14 上海烟草集团有限责任公司 切丝机的除尘系统

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109945493A (zh) * 2018-12-31 2019-06-28 广西天健新能源设备有限公司 高效导流保温水箱
CN109876937A (zh) * 2019-03-30 2019-06-14 横店集团英洛华电气有限公司 自旋转式喷头
US20210331183A1 (en) * 2020-04-24 2021-10-28 Applied Materials, Inc. Fasteners for coupling components of showerhead assemblies
CN113927382A (zh) * 2020-07-14 2022-01-14 上海烟草集团有限责任公司 切丝机的除尘系统

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