EP1142646B1 - Vanne de sous-pression avec venturi pour la conservation d'eau - Google Patents

Vanne de sous-pression avec venturi pour la conservation d'eau Download PDF

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Publication number
EP1142646B1
EP1142646B1 EP00107404A EP00107404A EP1142646B1 EP 1142646 B1 EP1142646 B1 EP 1142646B1 EP 00107404 A EP00107404 A EP 00107404A EP 00107404 A EP00107404 A EP 00107404A EP 1142646 B1 EP1142646 B1 EP 1142646B1
Authority
EP
European Patent Office
Prior art keywords
plug
opening
diameter space
large diameter
pipe
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP00107404A
Other languages
German (de)
English (en)
Other versions
EP1142646A1 (fr
Inventor
John L. M.S. P.E. Brice, Ph.D.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to DE60012689T priority Critical patent/DE60012689D1/de
Priority to EP00107404A priority patent/EP1142646B1/fr
Publication of EP1142646A1 publication Critical patent/EP1142646A1/fr
Application granted granted Critical
Publication of EP1142646B1 publication Critical patent/EP1142646B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0425—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid without any source of compressed gas, e.g. the air being sucked by the pressurised liquid
    • 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
    • E03C1/084—Jet regulators with aerating means
    • 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
    • B05B1/18—Roses; Shower heads

Definitions

  • This invention relates to an improved venturi based vacuum valve for modifying the flow rate of liquids according to the preamble of claim 1. More particularly, this invention relates to a venturi based vacuum valve for improving flow pressure at a lower flow rate.
  • An ejector valve is integrated or detachably inserted in a duct. There are means for retaining same axially in the duct. The inlet of the duct communicates with an annular space.
  • the venturi based vacuum valve of the present invention includes a plug with first, second and third openings.
  • the first opening is formed in the plug as an inlet and is smaller than the second opening.
  • the second opening and the first opening are connected within the plug so that a small diameter space is connected with a large diameter space within the plug.
  • the second opening forms an outlet in the plug.
  • the plug is conformed to fit entirely within a shower pipe.
  • the plug includes threads for attachment to a shower pipe and attachment of a shower head to the plug.
  • a corresponding method of providing a venturi based vacuum valve is also provided as set forth more fully hereafter.
  • a venturi based vacuum valve 10 includes a plug 12 with a first opening 14, a second opening 16, and a third opening 18.
  • First opening 14 is smaller than second opening 16 and first opening 14 forms a small diameter space 20 which connects with large diameter space 22 of constant dimension (as shown in Figure 1) formed by larger second opening 16 within plug 12.
  • Small diameter space 20 and large diameter space 22 of constant dimension connect within plug 12 at point 24 as shown in Figure 1.
  • Third opening 18 is the largest diameter of the three openings and intersects large diameter space 22 after intersection point 24 of large diameter space 22 with small diameter space 20.
  • Third opening 18 is open to the atmosphere and forms an air suction hole.
  • plug 12 in a preferred embodiment, is force fit into shower pipe 26 within which water flows in the direction of arrow 28.
  • Figure 1 shows shower pipe 26 with showerhead engagement threads 30 to which a typical showerhead (not shown) is attached, as is known in the art.
  • plug 12 illustrates another embodiment of the invention wherein internal securing threads 32 and external securing threads 34 are illustrated.
  • plug 12 is designed to be attached to showerhead engagement threads 30 by means of internal securing threads 32.
  • External securing threads 34 are then available for use in securing a typical showerhead (not shown) as is known in the art.
  • venturi based vacuum valve 10 is positioned on the inside 40 of shower pipe 26 so that first opening 14 faces the direction of water flow within shower pipe 26 coming from the direction of arrow 28 as shown in Figure 1.
  • first opening 14 forms an inlet in plug 12.
  • First opening 14 as described above is smaller than second opening 16 and forms a small diameter space 20 into which water flows from the direction of water flow direction arrow 28.
  • small diameter space 20 opens into, and connects with, large diameter space 22 of constant dimension.
  • third opening 18 intersects with large diameter space 22 from a single direction, transverse to the connected small and large diameter spaces 20 and 22.
  • small and large diameter spaces 20 and 22 of constant dimension are formed essentially longitudinal to the cylindrically shaped plug 12.
  • Third opening 18 is connected transversely to small and large diameter spaces 20 and 22.
  • air is mixed with incoming water so as to produce a hard, rushing stream of water at a considerably reduced flow rate of water in gallons per minute.
  • Air and water is mixed after intersection point 24 and exits plug 12 from second opening 16 in plug 12 which forms an outlet in plug 12. Thereafter, the water mixed with air is allowed to proceed through the user's normal, accustomed showerhead.
  • the venturi based vacuum valve 10 of the present invention therefore, water flow rates may be reduced to as low as .5 to 1.5 gallons per minute while delivering water that feels as though it were flowing at a much higher, and more wasteful, flow rate.
  • plug 12 is simply force fit within shower pipe 26 and third opening 18 is aligned with an opening formed in shower pipe 26 so as to provide access of atmospheric air to the device as described above.
  • the plug 12 may be inserted within shower pipe 26 prior to a hole being drilled in shower pipe 26 connecting the atmosphere to plug 12 through third opening 18.
  • venturi based vacuum valve 10 may include internal securing threads 32 on the inlet end of plug 12 surrounding first opening 14.
  • internal securing threads 32 enable venturi based vacuum valve 10 to be threaded onto the showerhead engagement threads 30 of shower pipe 26.
  • external securing threads 34 enable the user's normal showerhead to be attached to plug 12. The operation of the venturi based vacuum valve 10 then proceeds as previously described.
  • venturi based vacuum valve 10 of the present invention has been disclosed in connection with use with showers, it should be appreciated that the invention can be used in other flow situations.
  • the present invention provides an improved venturi based vacuum valve which includes no moving parts, can be easily manipulated in order, for example, to be inserted within gas lines, water treatment systems, air-conditioning/chill water systems and the like. Because there are no moving parts, the device is suitable for use with flammable, explosive materials as well as water.

Landscapes

  • 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)
  • Bathtubs, Showers, And Their Attachments (AREA)

Claims (4)

  1. Dispositif de vanne à dépression à effet venturi (10) destiné à la conservation de l'eau dans un tuyau transportant un flux d'eau en circulation, ayant un débit d'écoulement d'un volume donné, le dispositif (10) comportant :
    un obturateur (12) agencé dans ledit tuyau, pour réduire le volume de l'eau en circulation, ayant des première, deuxième et troisième ouvertures (14, 16, 18),
    la première ouverture (14) formée dans ledit obturateur étant en vis-à-vis de ladite eau en circulation sous la forme d'une entrée plus petite que la deuxième ouverture (16), et les première et deuxième ouverture (14, 16) étant connectées à l'intérieur dudit obturateur (12), de sorte qu'un espace de petit diamètre est connecté à un espace de grand diamètre (22) d'une dimension constante à l'intérieur dudit obturateur (12),
    une troisième ouverture (18), ouverte vers l'atmosphère, située avant la deuxième ouverture (16), formant un trou d'aspiration, et
    la deuxième ouverture (16) étant connectée audit espace de grand diamètre (22) d'une dimension constante formant une sortie dans ledit obturateur (12),
       caractérisé en ce que
    a) l'obturateur (12) est agencé de force dans le tuyau,
    b) la troisième ouverture (18) recoupe l'espace de grand diamètre (22) après l'espace de petit diamètre (20).
  2. Dispositif selon la revendication 1, caractérisé en ce que la troisième ouverture (18) a le diamètre le plus important des trois ouvertures, et recoupe l'espace de grand diamètre (22) après le point d'intersection (24) entre l'espace de grand diamètre (22) et l'espace de petit diamètre (20).
  3. Dispositif selon la revendication 1, caractérisé en ce que ledit obturateur (12) comporte de plus des moyens de fixation filetés (32, 34) pour la fixation sur un tuyau de douche et la fixation d'une pomme de douche sur l'obturateur au niveau de ladite deuxième ouverture (16).
  4. Dispositif selon la revendication 1, caractérisé en ce que le tuyau est un tuyau de douche ayant un dispositif formant obturateur à dépression à effet de venturi immobile.
EP00107404A 2000-04-05 2000-04-05 Vanne de sous-pression avec venturi pour la conservation d'eau Expired - Lifetime EP1142646B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE60012689T DE60012689D1 (de) 2000-04-05 2000-04-05 Venturi artiges Unterdruckventil zur Wassereinsparung
EP00107404A EP1142646B1 (fr) 2000-04-05 2000-04-05 Vanne de sous-pression avec venturi pour la conservation d'eau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00107404A EP1142646B1 (fr) 2000-04-05 2000-04-05 Vanne de sous-pression avec venturi pour la conservation d'eau

Publications (2)

Publication Number Publication Date
EP1142646A1 EP1142646A1 (fr) 2001-10-10
EP1142646B1 true EP1142646B1 (fr) 2004-08-04

Family

ID=8168385

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00107404A Expired - Lifetime EP1142646B1 (fr) 2000-04-05 2000-04-05 Vanne de sous-pression avec venturi pour la conservation d'eau

Country Status (2)

Country Link
EP (1) EP1142646B1 (fr)
DE (1) DE60012689D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2466920A (en) * 2008-11-26 2010-07-14 Zgp Ltd Shower attachment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4191332A (en) * 1978-01-10 1980-03-04 Langis David J De Shower head flow control device
US4901765A (en) * 1988-10-31 1990-02-20 Poe Frank C Coupling for mixing lotions or other liquids with shower water
SE468274B (sv) * 1991-01-08 1992-12-07 Lundberg & Son Vvs Produkter A Anordning vid duschhuvuden
US6045060A (en) * 1997-03-19 2000-04-04 Hudson; Donald D. Liquid soap mixer for showerheads

Also Published As

Publication number Publication date
EP1142646A1 (fr) 2001-10-10
DE60012689D1 (de) 2004-09-09

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