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WO1998006910A1 - Robinet de chasse d'eau ameliore a pression de reseau de ville - Google Patents

Robinet de chasse d'eau ameliore a pression de reseau de ville Download PDF

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Publication number
WO1998006910A1
WO1998006910A1 PCT/AU1997/000508 AU9700508W WO9806910A1 WO 1998006910 A1 WO1998006910 A1 WO 1998006910A1 AU 9700508 W AU9700508 W AU 9700508W WO 9806910 A1 WO9806910 A1 WO 9806910A1
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WO
WIPO (PCT)
Prior art keywords
valve
outlet
fluid
piston
main
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.)
Ceased
Application number
PCT/AU1997/000508
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English (en)
Inventor
Stephen Archibald Hill
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU36897/97A priority Critical patent/AU3689797A/en
Publication of WO1998006910A1 publication Critical patent/WO1998006910A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D3/00—Flushing devices operated by pressure of the water supply system flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
    • E03D3/02—Self-closing flushing valves
    • E03D3/04—Self-closing flushing valves with piston valve and pressure chamber for retarding the valve-closing movement

Definitions

  • the invention relates to mains pressure flusher valves.
  • it has application to mains pressure flusher valves in which the valve is opened and closed by the flow of fluid through a subsidiary passageway.
  • valves which are controlled by the flow of the same fluid which is controlled by the valve.
  • these valves rely upon the pressure of fluid at an inlet point being in some way diverted such that it applies pressure on the valve-head so as to urge the valve into a closed position.
  • the valve includes a release mechanism such that the pressure which holds the valve closed can be released, thereby opening the valve.
  • the valves typically close automatically once the initial release mechanism is deactivated. Valves of this type are described in, among other documents, international patent application PCT/AU93/00046 (W093/ 16240). This specification describes a simpler valve than that of the prior art which can be used at mains water pressure, which had not previously been described. That specification is expressly incorporated into this specification by reference and this specification is intended to be read in conjunction with that specification.
  • valves are used to control water for flushing a toilet
  • a common requirement of flusher valves is that they are not susceptible to back siphonage.
  • the valve must include a means to inhibit fluid being sucked back through the valve in the reverse direction to normal flow. This may be achieved by providing venting holes or air-vents in the valve to permit the entry of air into the valve. Accordingly, if a vacuum is applied upstream of the junction, air will be sucked in through the air-vents rather than fluid from the flush pipe.
  • the valve must be constructed so that while air can enter into the valve, the same openings or air- vents do not permit water or other fluid to escape or leak from the valve.
  • Such a valve may include a non-return valve located adjacent to the outlet of the main chamber to further inhibit water from the toilet being drawn back through the valve into a mains pressure system.
  • a resilient deformable material such as rubber.
  • These types of non-return valves include a longitudinal slit at the end of converging walls Accordingly, water flowing in the direction of the convergence has sufficient pressure to open the slit and continue flowing, whereas water flowing in the opposite direction is unable to open the slit
  • valve embodying the invention described in the specification of international patent application PCT/AU93/00046 is shown in figure 1 The operation of the valve is described in the specification This valve has some disadvantages which are better understood after describing part of the valve in some detail
  • the valve body disclosed in that specification has a primary and a secondary recess at its lower end at the top of discharge chamber 14 but below main chamber 12.
  • the recesses are defined by walls 4 and 5 respectively to form a "stepped" structure down from valve seat 18a
  • the internal diameter of the valve body at valve seat 18a therefore becomes one step larger at the secondary recess (formed by wall 5) and then larger again at the primary recess (formed by wall 4)
  • a "venting insert" 2 Located in the secondary recess at the junction of the main outlet passageway and the subsidiary passageway is a "venting insert" 2, being the annular element surrounding the depending projection from piston 17
  • Adjacent venting insert 2 is a groove 6 in the annular surface (or “step") joining walls 4 and 5
  • subsidiary passageway 13 ends in an aperture above wall 4 at one end of groove 6 (the left end as seen in figure 1 )
  • Groove 6 forms a channel with the upper surface of the non-return valve 36 and thereby connects the aperture at the end of passageway 13 with an annular groove 7 in venting insert 2.
  • Drain channels 1 in venting insert 2 provide a channel for fluid into non-return valve 36. Fluid flows in use from the aperture along the channel 6 (across the top of the upper surface of the non-return valve 36) to the channel 7 around venting insert 2 and then drains around the side of the venting insert through drains 1 into non-return valve 36.
  • a second problem relates to the need to ensure as good a seal as possible at the junction of outlets in the discharge chamber to minimise any leakage of water. This is particularly important where the valves may be installed in water-sensitive locations, such as behind walls where they may cause damage to the building if water leaks out.
  • fluid can leak around the top of the non-return valve 36 shown in Figure 1 from groove 6 and then escape through air-vents 38, or along the external surface of flush-pipe 48 or elsewhere. Air-vents need to be as small as possible to minimise leaks but as large as possible to maximise back-siphonage protection.
  • a mains pressure flusher valve which includes: a valve body defining (i) a main chamber having a main inlet for fluid and a main outlet for fluid and (ii) a discharge chamber extending downstream from the main outlet, the discharge chamber being adapted to be connected in use to a flush pipe; a piston located in the main chamber which is moveable into and out of sealing engagement with the main outlet; a non-return valve located in the discharge chamber having a mouth at its upstream inlet and an outlet, the non-return valve adapted to inhibit fluid flowing from the downstream side of the non-return valve to any part of the mains pressure flusher valve upstream of the non-return valve; sealing means to inhibit fluid in the discharge chamber from escaping, in use, to an external surface of the flush pipe; a subsidiary passageway having (i) a first portion with an entry for fluid in fluid communication with an upper portion of the main chamber above the piston, (ii) a control valve to permit flow of fluid through the subsidiary passageway and (ii
  • valve body wholly defines the end portion of the subsidiary passageway.
  • the sealing means includes an annular surface of the valve body around the discharge chamber normal to the direction of fluid flow, in use, through the valve body co-operating with a resilient flange on the non-return valve to form a seal. More preferably, the sealing means further includes a flush pipe adaptor which engages the valve body to hold the resilient flange against the valve body.
  • the flush pipe adaptor further includes elongate apertures adapted to permit air to flow into the flush pipe, the apertures being located downstream of the non-return valve but, in use, located above the non-return valve outlet such that fluid downstream of the non-return valve is directed by gravity away from the apertures.
  • the non-return valve is preferably constructed of a resilient flexible material such that greater flow of fluid through the outlet causes the non-return valve to expand to permit a greater flow rate of fluid through the non-return valve.
  • the piston has an internal passageway which communicates between an upper portion of the main chamber and the inlet and the non-return valve is adapted to provide resistance to fluid flowing therethrough to increase the pressure of fluid at the inlet of the internal passageway such that the non-return valve cooperates with the internal passageway to generate sufficient flow of fluid through the internal passageway during movement, in use, of the piston towards the main outlet to promote movement of the piston into a position of sealing engagement with the outlet.
  • the piston further includes at least one flow valve located in the internal passageway of the piston to regulate the passage of fluid through the internal passageway.
  • the piston further includes a depending projection of slightly smaller diameter than the main outlet adapted to promote smooth movement of the piston into sealing engagement with the outlet.
  • the valve further includes mechanical and/or electrical actuation means to actuate the control valve.
  • the valve further includes a venting insert (as defined below) in the discharge chamber, the venting insert including: an inlet located downstream of the main outlet and upstream of the subsidiary passageway outlet and adapted such that at least substantially all of fluid flowing, in use, through the main outlet flows through the venting insert inlet; an outlet downstream of the subsidiary passageway outlet; and an exterior cavity in the external surface of the venting insert adapted to form at least one channel for fluid from the subsidiary passageway outlet to the venting insert outlet.
  • a venting insert as defined below
  • the exterior cavity includes a circumferential groove in an exterior surface of the venting insert, the groove being aligned in situ with the subsidiary passageway outlet, and the cavity also including at least one channel leading from the circumferential groove to the venting insert outlet.
  • the venting insert inlet is accommodated within an annular recess within the valve body adjacent the main outlet.
  • the valve further includes a rigid non-return valve support located within the non-return valve and adapted to support the non-return valve in situ in the valve, the valve support having an upstream mouth adjacent to the mouth of the non-return valve, the valve support's mouth being adapted to co-operate with the venting insert outlet such that fluid from the main outlet and the subsidiary passageway outlet is directed into the non-return valve.
  • the valve support and venting insert are one piece.
  • the valve further includes piston stop means located in the upper portion of the main chamber and opposite the piston, the piston stop means being adapted to form a stop to movement of the piston, in use, away from the outlet and such that the piston stop means does not obstruct or enter the internal passageway.
  • the piston stop means is adjustable to control the amount of movement away from the outlet of the piston in the main chamber.
  • the flush pipe adaptor has apertures adapted to permit air to flow through the apertures such that, upon (i) a first air-pressure being applied outside the valve and (ii) a second air-pressure, being less than the first air-pressure, being applied at or upstream of the main outlet, air flows through the apertures in an upstream direction through the main outlet.
  • Figure 1 shows a cross-sectional view from the side of a mains pressure flusher valve in a closed position according to the invention of PCT/AU93/00046
  • Figure 2 shows a shows a cross-sectional view from the side of a mains pressure flusher valve in a closed position according to a first embodiment of the invention.
  • Figure 3 shows an enlarged side view of the venting insert shown in figure 2.
  • Figure 4 shows a bottom view of the venting insert illustrated in figure 3.
  • Figure 5 shows a perspective view of the flush pipe adaptor shown in figure 2.
  • Figure 6 shows a side view of a venting sleeve according to another preferred embodiment of the invention for use in the valve of figure 2.
  • FIG. 2 shows a valve 10 having a valve body 8.
  • the inlet chamber in the embodiment shown is on the side of the valve into the page behind the valve 10 and is constructed broadly similarly to the inlet 1 1 shown in figure 1.
  • the valve body 8 of figure 2 has an annular main chamber 12, the bottom of which is adjacent to the inlet chamber and a discharge chamber 14.
  • Running parallel beside the main chamber 12 is a smaller "subsidiary passageway" 13 which is in fluid connection with the top of main chamber 12 (being upper portion 40) and discharge chamber 14.
  • the main chamber 12 contains a piston 17.
  • the piston 17 has in its lower portion an annular rubber surface 18 (in the form of an affixed washer) which engages with a corresponding seat 18a formed in the valve body 8 to form a seal when the valve is in the closed position (as shown in figure 2). This prevents water flowing from the inlet chamber to discharge chamber 14 when piston 17 is in the closed position.
  • Piston 17 has a depending projection 39 of slightly smaller diameter than the discharge chamber 14 to form a choke as explained below.
  • Piston 17 also has a transverse channel 19 through its lower portion in fluid communication with the inlet chamber and, extended up from that channel, an axial passageway 20 which communicates with channel 19.
  • a filter may be located at one end of the axial passageway 20 where it meets with the transverse passageway 19.
  • Two small flow valves 21 and 22 are also located in the axial passageway 20 to prevent the flow of fluid from upper portion 40 through to axial passageway 20.
  • the flow valves also regulate the amount of water permitted to flow into upper portion 40.
  • Channel 23 is a relatively narrow extension of passageway 20 which connects valve 22 to the upper portion 40 of the main chamber 12 and is offset from the main axis of the valve so that it is not blocked by stop 30 when the valve is in the open position.
  • water is able to flow from the inlet chamber into main chamber 12 and into transverse passageway 19, and thereafter into the axial passageway 20 through flow valves 21 and 22, and through channel 23 into the upper portion 40.
  • bonnet 25 which seals the top of upper portion 40 of main chamber 12.
  • "O"-ring 32 forms the seal.
  • piston stop 30 projecting into upper portion 40, which is adjustable by bolt-head 33.
  • an "O"-ring 24 is located beneath bolt head 33. The stop 30 projecting into the main chamber 12 controls the extent of upward movement of piston 17 and thus the volume of upper portion 40 when the valve is in the open position. That volume controls (as explained below) the period between actuation of the valve and the cessation of water flow through the valve.
  • Passageway 13 communicates at its downstream end with discharge chamber 14 via an end portion 13a of the passageway 13 formed in valve body 8, which empties into the discharge chamber adjacent the external channel 53 of venting insert 51. End portion 13a is wholly defined by a bore in valve body 8 and its outlet is an opening in wall 65.
  • Outlet or discharge passageway 14 is defined at its most upstream end by valve body 8 immediately downstream of main outlet 9 and valve seat 18a.
  • Valve body 8 has a primary and a secondary recess at its lower end, defined by walls 64 and 65 respectively to form a "stepped" structure down from valve seat 18a.
  • the internal diameter of the valve body at valve seat 18a therefore becomes one step larger at the secondary recess (formed by wall 65) and then larger again at the primary recess (formed by wall 64).
  • secondary recess is larger and wall 65 is correspondingly taller than wall 5 of figure 1.
  • venting insert 51 Located in the secondary recess at the junction of the main outlet passageway and the subsidiary passageway 13 is venting insert 51, being the annular element surrounding depending projection 39 from piston 17.
  • the discharge chamber is defined firstly by the internal surface of venting insert 51 and, further downstream, by the internal surface of non-return valve 36, which is in its most upstream part "lined" by non-return valve support 49.
  • the non-return valve 36 is an elastomeric one-way valve, having converging walls at one end meeting at a slit perpendicular to the flow of fluid, such that fluid flow in one direction (down the page) along the converging walls opens the slit but fluid pressure from the other end (up the page) leaves the slit closed, hence inhibiting flow in that direction.
  • the non-return valve has an annular flange 46 defining its upstream mouth and also defining an upper ri which rests against a smooth surface connecting annular walls 64 and 65 (being the step between the primary and secondary recesses) to form a seal with the valve body against leakage around the outside of the non-return valve 36.
  • Non-return valve support 49 is made of brass (as is venting insert 51) and has a rim 56 which is located within an annular recess in the internal wall of flange 46 to hold the upstream part of non-return valve 36 firmly as well as holding the mouth of non-return valve 36 (distant from the slit) open and firmly in position near the main outlet 9.
  • venting insert 51 has a top flange 52 which seats with valve body 8 in outlet passageway 14.
  • the venting insert 51 also has an external recess, including a circumferential groove 53 and drain channels 54. Drain channels 54 can be more clearly seen in figure 4 which is a bottom view of venting insert 51.
  • Groove 53 provides a significantly sized space to receive fluid from passageway 13, which can then escape along drain channels 54.
  • venting insert and non-return valve support are shown manufactured as one piece called a "venting sleeve" 58.
  • the sleeve is generally cylindrical such that its external surface approximates that of the internal surface of the non-return valve. It has a flange 55 to locate it within flange 46 of non-return valve 36 and a top flange 56 to locate it within the secondary recess in valve body 8 defined by wall 65 in place of venting insert 51 which is shown in figure 2.
  • Apertures 57 replace drain channels 54 to permit fluid from the subsidiary passageway outlet 13a to enter the non-return valve. Accordingly, the venting sleeve 58 functions essentially the same way as the combination of the venting insert 51 and non-return valve support 49.
  • flush pipe adaptor 47 (shown in perspective in figure 5), which is threadedly connected to valve body 8 and has an upper surface which acts on the lower surface of flange 46 such that, when it is screwed up tight against valve body 8, flange 46 is compressed between flush pipe adaptor 47 and valve body 8 to form the seal.
  • adaptor 47 has flats 39 to facilitate it being screwed tight against valve body 8.
  • a washer 44 is located between the top of flush pipe adaptor 47 and flange 46.
  • Nut 55 threadedly affixes to the external surface of flush pipe adaptor 47.
  • Nut 55 has an internal flange or step of corresponding diameter to the lower surface of flush pipe adaptor 47.
  • the flush pipe adaptor 47 has internal flanges 59 perpendicular to its axis in between slots 50 (as shown in figure 5).
  • Figure 5 shows the flush pipe adaptor 47 with slots or apertures 50 which enable air to enter the top of flush pipe 48 as the top of flush pipe 48 abuts the internal flanges of adaptor 47.
  • the end of the flush pipe 48 rests on these flanges to locate it appropriately within the discharge chamber 14.
  • this can be screwed on to the outside thread of nut 55 (in which case "O"-ring 37 is unnecessary).
  • the valve operates as follows. When the valve is in the closed position, the inlet chamber and main chamber 12 are filled with water. In this state, the total force exerted on the top of the piston 17 by the water contained in the upper portion 40 of the main chamber 12 is greater than the force exerted by the water in the lower portion of the main chamber 12 because the piston 17 has greater surface area exposed to the upper portion 40. In this state, the valve is closed because seal 18 prevents water flowing from the inlet chamber to discharge chamber 14. Upon actuation (by either mechanical or electrical means) of the control valve, water is permitted to flow from upper portion 40 through to passageway 13, to its end portion 13a, channel 53, channels 54 and then into non-return valve 36.
  • the non-return valve 36 provides some resistance to the water flowing through discharge chamber 14 which reduces any vacuum or venturi force created by the flowing of water through the outlet and which would otherwise cause piston 17, at normal operating pressures, to be prematurely drawn down, closing the valve prior to the action of the closing mechanism explained below. Further, where the non-return valve 36 is constructed of flexible and elastic material, it can provide an appropriate degree of resistance over the range of water flow-rates experienced in the discharge chamber 14 with a mains pressure inlet.
  • Non-return valve 36 maintains some resistance to the water being discharged by elastically contracting due to the lower flow-rate (and thus lower pressure inside the non-return valve).
  • Projection 39 the choke, further slows the downward movement of the piston 12 by further decreasing the water flow-rate through discharge chamber 14 as piston 17 approaches the closed position. This assists in the seal 18 coming to rest on its corresponding seat 18a gently. A sudden or violent re-seating of piston 12 would cause an undesirable noise and may also set up dangerous or damaging hydraulic vibrations.
  • the flow of water though the valve finally stops upon seal 18 again forming a seal with its corresponding seat 18a in main body 8 preventing the flow of water from the inlet chamber to discharge chamber 14.
  • valve as described above will seal better to reduce fluid leakage and more smoothly to minimise any water hammer.
  • the volume of water delivered can be controlled over a range sufficiently broad for normal use with smooth operation and minimal leak.
  • the body and components of the valve may be manufactured from any material which has sufficient strength, resilience and non-corrosive properties to withstand the pressures involved (typically up to 2,000 Pa).
  • Such materials include usual plumbing alloys, such as brass, but could also be stainless steel, and may also include high-strength polymers, including Nylon compounds.
  • the seals are typical rubber "O-rings" and the non-return valve is also rubber as known in the art.

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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)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Safety Valves (AREA)

Abstract

Robinet de chasse d'eau (10) à pression de réseau de ville, composé: d'un corps (8) comportant (i) une chambre principale (12) avec une entrée principale et une sortie principale de fluide (9) et (ii) une chambre d'évacuation (14) située en aval de la sortie principale (9), cette chambre d'évacuation (14) étant conçue pour être reliée, à l'utilisation, à un tuyau de chasse d'eau (48); d'un piston (17) placé dans la chambre principale (12), et mobile dans la sortie principale entre une position de fermeture (9) et d'ouverture de la sortie; d'un clapet antiretour (36) placé dans la chambre d'évacuation (14), présentant une ouverture à l'entrée amont et une sortie, ce clapet (36) empêchant le fluide d'écoulement aval de refouler dans toute partie du robinet en amont du clapet; d'une étanchéité (46) évitant que le fluide situé dans la chambre d'évacuation (14) ne s'évacue vers une surface extérieure du tuyau de chasse (48); d'un passage subsidiaire (13) formé (i) d'une première partie avec une entrée de fluide, communicant avec la partie supérieure (40) de la chambre principale (12) au-dessus du piston (17), (ii) d'une vanne de commande autorisant l'écoulement du fluide à travers le passage subsidiaire (13) et (iii) d'une seconde partie (13a) adjacente à la chambre d'évacuation, avec une sortie d'écoulement du fluide dans la chambre d'évacuation (14), cette sortie étant située en aval de la sortie principale (9), en amont de l'étanchéité (46) et en retrait de cette dernière.
PCT/AU1997/000508 1996-08-13 1997-08-13 Robinet de chasse d'eau ameliore a pression de reseau de ville Ceased WO1998006910A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU36897/97A AU3689797A (en) 1996-08-13 1997-08-13 Improved mains pressure flusher valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPO1605 1996-08-13
AUPO1605A AUPO160596A0 (en) 1996-08-13 1996-08-13 Improved mains pressure flusher valve

Publications (1)

Publication Number Publication Date
WO1998006910A1 true WO1998006910A1 (fr) 1998-02-19

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PCT/AU1997/000508 Ceased WO1998006910A1 (fr) 1996-08-13 1997-08-13 Robinet de chasse d'eau ameliore a pression de reseau de ville

Country Status (4)

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AU (1) AUPO160596A0 (fr)
ID (1) ID18028A (fr)
TW (1) TW374810B (fr)
WO (1) WO1998006910A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042926A1 (fr) * 1997-03-25 1998-10-01 Dove Systems Limited Systeme de chasse d'eau
US6263519B1 (en) 2000-04-07 2001-07-24 Arichell Technologies, Inc. Automatic tank-type flusher
US6321395B1 (en) 2000-11-20 2001-11-27 Arichell Technologies, Inc. Timed fluid-linked flush controller
US6370707B1 (en) 2001-01-16 2002-04-16 Arichell Technologies, Inc. Supply-line-sealed flush controller
US6425145B1 (en) 2001-09-21 2002-07-30 Arichell Technologies, Inc. Push button for metered flow
US6453479B1 (en) 2001-01-16 2002-09-24 Arichell Technologies, Inc. Flusher having consistent flush-valve-closure pressure
US6934976B2 (en) 2000-11-20 2005-08-30 Arichell Technologies, Inc. Toilet flusher with novel valves and controls
WO2007038826A1 (fr) * 2005-10-05 2007-04-12 Goyen Controls Co. Pty Ltd Valve de régulation d’impulsion d’air haute pression
US7562399B2 (en) 2002-04-10 2009-07-21 Arichell Technologies Toilet flusher for water tanks with novel valves and dispensers

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1359187A (en) * 1918-05-16 1920-11-16 Daniel M Mclaughlin Valve
US1647189A (en) * 1925-10-17 1927-11-01 Adolph Mueller Self-cleaning flushing valve
GB325114A (en) * 1929-02-19 1930-02-13 Henry William Tews Improvements in flushing valves
US1750317A (en) * 1923-11-05 1930-03-11 Katherine Keating Flush valve
FR714681A (fr) * 1930-08-01 1931-11-18 Robinet de chasse d'eau avec réservoir à accumulation d'eau fonctionnant par décompression
FR823610A (fr) * 1936-08-24 1938-01-24 Soupape de chasse pour urinoirs, water-closets, etc.
GB601969A (en) * 1944-12-15 1948-05-18 Paul Jacek Improvements in flushing valves
FR972332A (fr) * 1941-02-03 1951-01-29 Réservoir de chasse à débit accéléré par injection d'eau en pression, sans flotteur ni siphon, pouvant se fixer à faible hauteur
DE2609137A1 (de) * 1976-03-05 1977-09-15 Rost & Soehne Georg Selbstschlussarmatur
DE2722889A1 (de) * 1977-05-20 1978-11-23 Rost & Soehne Georg Selbstschlussventil
EP0109467A1 (fr) * 1982-11-15 1984-05-30 René Blanc Robinet à fonctionnement semi-automatique permettant de délivrer un volume prédéterminé d'un fluide sous pression, notamment robinet de chasse
DE3427336A1 (de) * 1983-08-31 1985-03-14 Friedrich Gampper KG Metallwarenfabrik, 7157 Murrhardt Klosettdruckspueler
WO1993025769A1 (fr) * 1992-06-15 1993-12-23 Toto Ltd. Systeme de regulation d'ecoulement d'eau

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1359187A (en) * 1918-05-16 1920-11-16 Daniel M Mclaughlin Valve
US1750317A (en) * 1923-11-05 1930-03-11 Katherine Keating Flush valve
US1647189A (en) * 1925-10-17 1927-11-01 Adolph Mueller Self-cleaning flushing valve
GB325114A (en) * 1929-02-19 1930-02-13 Henry William Tews Improvements in flushing valves
FR714681A (fr) * 1930-08-01 1931-11-18 Robinet de chasse d'eau avec réservoir à accumulation d'eau fonctionnant par décompression
FR823610A (fr) * 1936-08-24 1938-01-24 Soupape de chasse pour urinoirs, water-closets, etc.
FR972332A (fr) * 1941-02-03 1951-01-29 Réservoir de chasse à débit accéléré par injection d'eau en pression, sans flotteur ni siphon, pouvant se fixer à faible hauteur
GB601969A (en) * 1944-12-15 1948-05-18 Paul Jacek Improvements in flushing valves
DE2609137A1 (de) * 1976-03-05 1977-09-15 Rost & Soehne Georg Selbstschlussarmatur
DE2722889A1 (de) * 1977-05-20 1978-11-23 Rost & Soehne Georg Selbstschlussventil
EP0109467A1 (fr) * 1982-11-15 1984-05-30 René Blanc Robinet à fonctionnement semi-automatique permettant de délivrer un volume prédéterminé d'un fluide sous pression, notamment robinet de chasse
DE3427336A1 (de) * 1983-08-31 1985-03-14 Friedrich Gampper KG Metallwarenfabrik, 7157 Murrhardt Klosettdruckspueler
WO1993025769A1 (fr) * 1992-06-15 1993-12-23 Toto Ltd. Systeme de regulation d'ecoulement d'eau

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042926A1 (fr) * 1997-03-25 1998-10-01 Dove Systems Limited Systeme de chasse d'eau
AU725659B2 (en) * 1997-03-25 2000-10-19 Dove Systems Limited Flush system
US6263519B1 (en) 2000-04-07 2001-07-24 Arichell Technologies, Inc. Automatic tank-type flusher
US6321395B1 (en) 2000-11-20 2001-11-27 Arichell Technologies, Inc. Timed fluid-linked flush controller
US6934976B2 (en) 2000-11-20 2005-08-30 Arichell Technologies, Inc. Toilet flusher with novel valves and controls
US6370707B1 (en) 2001-01-16 2002-04-16 Arichell Technologies, Inc. Supply-line-sealed flush controller
US6453479B1 (en) 2001-01-16 2002-09-24 Arichell Technologies, Inc. Flusher having consistent flush-valve-closure pressure
US6425145B1 (en) 2001-09-21 2002-07-30 Arichell Technologies, Inc. Push button for metered flow
US7562399B2 (en) 2002-04-10 2009-07-21 Arichell Technologies Toilet flusher for water tanks with novel valves and dispensers
WO2007038826A1 (fr) * 2005-10-05 2007-04-12 Goyen Controls Co. Pty Ltd Valve de régulation d’impulsion d’air haute pression
KR101424114B1 (ko) * 2005-10-05 2014-08-01 고옌 콘트롤즈 컴퍼니 피티와이 리미티드 고압 공기 펄스의 제어 밸브

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TW374810B (en) 1999-11-21
ID18028A (id) 1998-02-19
AUPO160596A0 (en) 1996-09-05

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