EP0842334A1 - Improvements in or relating to valves - Google Patents
Improvements in or relating to valvesInfo
- Publication number
- EP0842334A1 EP0842334A1 EP96925598A EP96925598A EP0842334A1 EP 0842334 A1 EP0842334 A1 EP 0842334A1 EP 96925598 A EP96925598 A EP 96925598A EP 96925598 A EP96925598 A EP 96925598A EP 0842334 A1 EP0842334 A1 EP 0842334A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- valve arrangement
- arrangement according
- float
- cistern
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/02—High-level flushing systems
- E03D1/14—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves
- E03D1/142—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves
- E03D1/144—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves having a single flush outlet and an additional float for delaying the valve closure
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/302—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage with valves kept in open position by means of air or water pressure or by vacuum
Definitions
- the present invention relates generally to valves, in one aspect particularly to valves which are immersed in the fluid the flow of which the valves control, and in another aspect particularly to valves for controlling the flow of fluids through the valve. More particularly, the present invention relates to valves for controlling the flow of liquids, particularly water. Even more particularly, the present invention relates to valves suitable for use in cisterns for flushing toilet bowls and the like, such as inlet valves for admitting water to the cistern, and flushing valves, particularly dual flushing valves, located in cisterns for controlling release of water from the cistern.
- the present invention finds particular application as the inlet valve and/or as the dual flush cistern valve having two modes of operation in cisterns located in buildings such as office blocks, hotels, domestic houses or the like.
- valves in cisterns are bulky and complex which results in large amounts of space being occupied by the valve in the cistern, particularly the operating mechanism of the valves. This in turn requires that the cistern be of large size. Large size cisterns reduce the places in which the cistern may be located within a building, and reduce the flexibility of stylists in designing the cistern and the room in which the cistern is to be located.
- Another problem associated with single flush valves is that they waste water since they have no provision for reducing the amount of water used during a flush even when it is not required.
- valves more or less continually drip water or allow water to leak from the cistern, particularly into the toilet bowl, with accompanying unwanted noise, including the annoying hissing noise as the cistern is being continually replenished with water as the valve oscillates between a partially opened position and a closed position.
- unwanted noise including the annoying hissing noise as the cistern is being continually replenished with water as the valve oscillates between a partially opened position and a closed position.
- continual leaking of the cistern results in unsightly staining of the toilet bowl.
- a valve arrangement suitable for use in a cistern, such as a flushing valve, particularly a dual flush cistern valve, which is efficient in operation, made from a reduced number of components, occupies a minimum of space, is silent or almost so in operation, yet is effective in operation, and requires little or no maintenance as well as being inexpensive to build.
- a flushing valve particularly a dual flush cistern valve
- the same requirements also apply to an inlet valve, particularly an inlet valve which moves quickly and silently between a fully closed and fully opened position and does not cause or result in water hammer or the production of unwanted noise.
- a valve arrangement comprising at least one movable valve member, said member being movable between an open position and a closed position, and an actuating member for causing operation of the valve member between the open and closed positions, said actuating member being mounted in such a manner that movement of the actuating member in one direction is caused by a first force and movement in a second direction is caused by a second force, such that in one condition of operation of the valve arrangement said first force predominates, whereas in a second condition of operation of the valve arrangement said second force predominates.
- valve arrangement of the present invention is an inlet valve or a flush valve, more typically a dual flush valve.
- valve is located in a cistern.
- the first movable valve member is a cylindrical tube.
- the tube is open at both ends.
- the valve member is two open-ended cylindrical tubes located co-linearly with each other. More typically, the respective open ends of the two tubes are sealingly interconnected together.
- the movable valve member or the two or more movable valve members move axially within the cistern.
- the open position allows egress of water to an outlet for discharge of the water. More typically, there are two open positions wherein the first open position corresponds to a full flush in which the outlet is directly opened and a second position is a half flush position in which the outlet is in fluid communication with the or one of the cylindrical tubes, thereby resulting in a half flush. More typically, .when there is a single tube, said tube is arranged so that it can adopt two different positions corresponding to two different outlet positions depending on whether it is in the full flush or half flush position.
- the single tube can be located at two different heights, typically 30 cm above the outlet in the full flush open position and typically 15 cm above the outlet in the half flush open position.
- the actuating member for causing operation of the valve member is a float or other member having a watertight chamber.
- the float is provided with a locking edge.
- the float is provided with a stop means for limiting the amount of pivotal movement of the float during operation of the valve.
- the actuating member is one, two, three or more floats.
- the float is made from a plastics material or similar.
- the float is substantially triangular in vertical section and substantially D-shaped in horizontal section.
- the float is pivotally connected or mounted within the valve arrangement.
- the actuating member is connected or mounted off centre or is connected at such a position which does not correspond with its centre of gravity, so as to be pivotable about its point of connection.
- the float is pivotable under the influence of gravity and is separately pivotable under the effect of buoyancy.
- the first force causing movement of the actuating member is the force of gravity. More typically, the second force is a lift force provided by buoyancy of the float.
- the valve arrangement of the present invention is suitable for use in a cistern.
- the force of gravity predominates to cause the float to adopt a substantially vertical orientation or a more vertical orientation. More typically, when the cistern is full of water the force due to buoyancy of the float in the water predominates to cause the float to adopt a vertically inclined orientation. More typically, operation of the valve is due to a combination of the forces of gravity and buoyancy, more typically, said forces operating in sequence to return the float to a position ready for further operation.
- the cistern is provided with both a dual flushing valve and an inlet valve which co-operate with each other to effect operation of the cistern in use.
- Figure 1 is a schematic side perspective view of one form of one valve arrangement of the present invention shown in isolation, said valve arrangement being a dual flush valve shown in the fully closed position immediately after flushing with the floats being vertical;
- Figure 2 is a side elevational view of the form of the valve arrangement of Figure 1 located in situ in the half flush open position allowing a half flush of the cistern;
- Figure 3 is a vertical cross-sectional view of the valve arrangement of Figure 2 in a fully closed position thereby sealing the cistern with the floats in a vertically inclined position in readiness for operation;
- Figure 4 is a side elevational view of the valve arrangement of Figure 2 in situ in the full flush open position;
- Figure 5 is a schematic side elevational view of another form of a valve arrangement in accordance with the present invention being an inlet valve in the open position with the float arranged vertically;
- Figure 6 is a side elevational view of one form of the float member of the valve arrangement of Figure 5;
- Figure 7 is a top plan view of the float of Figure 6; and
- Figure 8 is a side elevational view of a modified form of the dual flush valve of the present invention located in situ in a full flush position.
- Dual flushing valves are characterised as having two outlets corresponding to two modes of flushing, one being known as a half flush in which a lesser amount of water is discharged to the toilet, and the other being known as a full flush in which almost the entire content of the cistern is discharged to the toilet bowl.
- Flushing valve 2 comprises a main framework 4 which is securely attached internally within a cistern by suitable means (not shown) .
- Framework 4 comprises a lower horizontal bracket 6 which can be securely fixed to the base or lower surface 7 of the cistern and which assists in securely fixing frame 4 in place.
- Bracket 6 is provided with a circular aperture for receiving a lower portion of a flushing tube (to be described in more detail later) which is located directly above the outlet 9 of the cistern by a suitable fastening means such as a threaded tube and nut arrangement 11.
- Frame 4 further comprises a pair of horizontally spaced apart vertically extending members 8 and an upper support bracket 10 located at or towards the top of vertical members 8 for interconnecting the members 8.
- a cap 13 is provided at the top of bracket 10 between vertical members 8.
- Upper support bracket 10 is also provided with a circular opening for receiving the upper end of an upper flushing tube.
- a first movable valve member in the..form of a hollow cylindrical tube 14 being open at either end and acting as an upper flushing tube is received in the circular opening of support bracket 10.
- Upper tube 14 is free to move axially in bracket 10 between a fully closed position and one of the open flushing positions.
- Upper tube 14 is provided with upper ring or collar 16 located around its circumference intermediate its ends. Ring 16 may take any suitable profile and be made from any suitable material.
- Upper tube 14 co-operatively interacts with lower tube 18.
- the lower end of tube 14 is shown in phantom in Figure 1 to reveal the internal details of the sealing arrangement 17 between the lower end of upper tube 14 and the upper end of lower tube 18.
- the sealing arrangement 17 comprises a substantially V-shape seal or tapered-edged seal 19 provided around the circumference of the upper edge of lower tube 18 so that the lower edge of upper tube 14 is received in the seal to seal the two tubes together and prevent ingress of water internally into the tubes during use when in the fully closed position and the fully opened position.
- the lower tube 18 acting as a second movable valve member is arranged in end to end aligned relationship with upper tube 14.
- a lower ring or collar 22 is provided circumferentially around the outside of lower tube 18 intermediate the ends.
- the lower end of tube 18 is provided with a seal arrangement 20.
- Seal arrangement 20 is additionally received within bracket 6 and is mounted directly above the outlet 9 of the cistern as is lower tube 18.
- Seal arrangement 20 is provided with a substantially V-shaped seal or tapered-wall seal 21 in which the lower edge of lower tube 18 is received for sealing the cistern against outflow of water in the fully closed position.
- a central rod 26 is located axially within the aligned upper and lower tubes 14, 18 and extends beyond the ends of both tubes at either end.
- Rod 26 is maintained in place by being received through centrally located apertures 27, 29 of spiders 28, 30 located at or towards the upper end of upper tube 14 and the lower end of lower tube 18 respectively.
- Spiders 28, 30 may be formed integrally with the tubes 14, 18 or may be made separately and assembled with the tubes.
- Actuating lever 32 is connected at one end to central rod 26 and at the other end to push rod 33 to effect movement of central rod to effect full flush of the valve in which the valve is in the fully opened position.
- the other end of push rod 33 is connected to full flush button or similar (not shown) provided on the cistern.
- Actuating lever 36 is connected at one end to the top of spider 38 and at the other end to push rod 37 to effect movement of upper tube 14 to effect half flush of the valve in which the valve is only half opened by tubes 14 and 18 being separated from each other.
- the other end of push rod 37 is connected to half flush button (not shown) or similar provided at a convenient remote location on the cistern.
- An upper float 40 is pivotally connected to frame 4 at or towards the upper end of vertical member 8 by means of a pivot pin 42 or similar.
- a lower float 44 is pivotally connected to framework 4 at a position intermediate the ends of frame member 8 but located more towards the lower end by a pivot pin 46 or similar.
- Upper and lower floats 40, 44 are free to pivot between two different operating positions, one position being the fully closed position adopted when the cistern is full of water and the other position being for locking either tube 14 or tube 18 in the open position.
- Floats 40, 44 are airtight so as to define a closed chamber and are pivoted off centre so that the pivot point does not coincide with the centre of gravity or the centre of lift. In this manner floats 40, 44 are free to pivot to adopt a more vertical position or substantially vertical position under the influence of gravity when the cistern is empty and are free to pivot to adopt an inclined position when the cistern is full of water or in either of the flush positions.
- the normal in use position of the floats 40, 44 when the cistern is full of water is such that they adopt an inclined position with respect to frame member 8 as shown in Figures 2 to 4 due to the buoyancy of the air filled floats.
- the floats 40, 44 move to a less angularly inclined position such as a more vertical position as shown in Figure 1 to allow the valve members 14, 18 to return to their closed positions depending on the mode of flushing the cistern.
- Float 40 is provided with a locking edge 48 along the upper inboard edge facing upper tube 14 for co-operatively engaging upper ring 16 in use, and a shoulder 49 extending obliquely along one side edge for engaging with the edge of frame member 8 to limit the movement of float 40.
- Float 44 is provided with a similar locking edge 50 along the upper inboard edge facing lower tube 18 for co-operatively engaging lower ring 22 in use, and a shoulder 51 extending obliquely along one or both opposite sides for engaging with the edge of frame member 8 to limit the pivotal movement of float 44 in the anti ⁇ clockwise direction.
- the cistern In operation of a half flush of flushing valve 2 of the present invention, the cistern is full of water up to the level shown in Figures 2 to 4, which level is close to the top of upper tube 14. It is to be noted that the level of water is below the level of the upper edge of the open topped inlet tube 14 and is about the level of upper bracket 10 of frame 4.
- the cistern When the cistern is full floats 40, 44 adopt an angularly inclined position as shown in Figures 2 to 4 with the respective actuating corners 48, 50 of floats 40, 44 respectively in contact with the side wall of the two inlet tubes 14, 18, particularly as shown in Figure 3.
- valve 2 in Figure 3 which is the fully closed position, is such that upper tube 14 is sealed to lower tube 18 which is sealed to outlet 9 thus containing water in the cistern and preventing any discharge of water from the cistern to the toilet.
- This is the normal position of the cistern in a state where it is ready for operation. Water is admitted to the cistern through a separate inlet valve, details of which will be described below.
- Tube 18 is lifted sufficiently for ring 22 to clear edge 50 of float 44 to allow edge 50 to rest against and under ring 22 to support tube 18 in the fully open position and maintain the valve in this position until the level of the water in the cistern falls below the lower edge of float 44 which is about the level of the outlet 9. It is to be noted that as tube 18 is lifted so also is tube 14 so that the seal between tubes 14 and 18 is maintained at all times during the full flush mode of operation and the only outlet for the water is through the bottom of the cistern. It is noted that during this operation float 40 also pivots. However there is no effect on operation of the device since in this mode of operation float 40 does not contact ring 16 due to the different spacings of ring 22 from float 44 and ring 16 from float 40. Further, it is to be noted that the positions of rings 16, 22 are such that tubes 14, 18 will be retained in one of two positions - either the full flush position, or the half flush position. It is not possible for the locking edges of both floats to lock both tubes simultaneously.
- float 44 pivots anti-clockwise in accordance with the force of gravity to release ring 22 and allow tube 18 to gravitationally fall thus resealing outlet 9.
- An inlet valve then operates to admit water into the cistern so that the level rises past float 44 and then past float 40 whereupon each float in turn pivots clockwise to assume their former positions respectively with edge 50 resting against tube 18 and edge 48 resting against tube 14 but at locations above the respective positions of rings 16, 22.
- inlet valve 60 which is located inside the cistern (not shown) .
- the base or lower surface 62 of the cistern is provided with an aperture through which a stand pipe 64 is received and sealed thereto with a conventional sealing filling.
- Stand pipe 64 is connected to the normal pressurised water supply and supplies water internally into the cistern. Supply of the water to the cistern is controlled by operation of inlet valve 60.
- Valve 60 is located at the top of stand pipe 64 immediately above water entry orifice 66 and delivery pipe 68 provided with a spout (not shown) or similar nozzle for dispersing the energy of the incoming water thus resulting in silent operation of the valve.
- Valve 60 comprises a float 70 which is generally right angle triangular in vertical cross section and generally U-shaped in horizontal section as shown in Figures 6 and 7.
- Float 70 is arranged so that stand pipe 64 is located in the cut-out of the "U" and is pivotally connected to the stand pipe with one of the sides of the triangular float being substantially vertical, another side being substantially horizontal, said sides being arranged substantially perpendicular to each other, and the third oblique side being angularly inclined to the other two sides.
- the precise shape of the float can be varied.
- the float In the normal position, which is to say the prepared-for-operation position when the cistern is full, the float is angularly inclined to the stand pipe which is a position in which the float is pivoted in an anti-clockwise direction from that shown in Figure 5.
- Float 70 is provided with a yoke 72 at a position along its upper side in use towards the apex of the horizontal side with the oblique side.
- An actuating lever 74 or lever 76 or push rod or similar force or motion transmitting device or linkage is connected to the yoke at one end and is provided with or connected to a cam 78 at the other end.
- the link and cam arrangement is such to allow the cam 78 to bear upon the upper end of plunger 80 located in a suitable housing 82 forming a plunger valve. It is to be noted that a single lever provided with a roller wheel at each end can be used in place of the pair of levers 74, 76 and cam 78. In this embodiment, one of the roller wheels acts directly on plunger 80 of the plunger valve.
- Two “0" rings 84, 86 are provided between plunger 80 and housing 82 to seal the housing and prevent water from escaping from the housing.
- a pad 88 is provided at the lower end in use of plunger 80 for selectively closing and opening water entry orifice 66 and thus regulating the flow of water from stand pipe 64 to delivery pipe 68 through water entry orifice 66.
- Housing 82 is provided with an adjustable threaded cap 90 for adjusting the amount of travel of plunger 80 so that a gap exists between the top of plunger 80 and cam 78 while the float 70 is in its vertical position allowing water into the cistern, yet allows sealing contact between pad 88 and orifice 66 when the valve is in the closed position.
- One modification of the plunger valve is to provide the valve with a mechanical lock so that excessive water pressure will not force the valve to inadvertently open or leak.
- roller wheels are used to eliminate any unwanted friction.
- Figure 8 there is shown a modified form of the dual flush valve of Figures 1 to 4 which modified valve is similar to the valve of Figures 1 to 4 except that a single tube 100 replaces upper tube 14 and lower tube 18. Accordingly, the same reference numerals will be used for corresponding features in Figure 8 as are present in Figures 1 to 4. Additionally, as tube 100 is a single tube extending from bracket 6 to bracket 10 and axially movable therebetween in use there is no sealing arrangement 17 or seal 19. Tube 100 operates in the same way as tubes 14 and 18 in that tube 100 may be lifted a small amount, such as for example 15 mm from seal 20 to adopt a half flush position or a larger amount, such as for example about 30 mm, to adopt a full flush position.
- a small amount such as for example 15 mm from seal 20 to adopt a half flush position or a larger amount, such as for example about 30 mm, to adopt a full flush position.
- Inlet valve 70 then operates to fill the cistern and both floats 44 and 40 pivot clockwise to the "ready" position in turn under the effect of buoyancy as the water level rises past each in turn.
- the inlet valve of the present invention is unique in construction in that it is either in the fully open position or in the fully closed position, there being no delayed progressive movement between the two extreme positions, but rather there is only instantaneous operation between the two positions.
- the inlet valve has no intermediate stops or delays.
- This advantage has been achieved by designing a hydrodynamic float which will remain in the fully open position, that is in which the float extends vertically downwards as disclosed in Figure 5, until the rising water in the cistern reaches a predetermined level when the valve will move freely and effortlessly without sound to the fully closed position thereby stopping the flow of water into the cistern. Additionally, even though the valve moves quickly between the open and closed positions, there is no water hammer produced.
- the float moves a lever so designed that it produces, by a compounded mechanical advantage, considerable force on the opening of orifice 66.
- water enters via the delivery pipe from where it is sprayed onto the cistern wall at a preset angle and at a constant rate.
- the nozzle through which the water is sprayed is designed so that the energy of the incoming water is absorbed by the side wall of the cistern resulting in no noise.
- Another advantage of the present invention is that the "horse-shoe" horizontal section of the float permits a wrap-around effect of the vertical stand pipe, thus reducing the space required for the components of the valve and for operation.
- inlet valve of the present invention and the dual flushing valve may be arranged together within the same cistern so that both valves operate in combination with each other.
- a further advantage of the dual flushing valve of the present invention, particularly the valve of Figure 8, is that a reduced number of components are employed and further there is only a single seal required, which contributes to the low cost of manufacture and the reliability of the valve arrangement.
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)
- Float Valves (AREA)
- Sanitary Device For Flush Toilet (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Catalysts (AREA)
- Glass Compositions (AREA)
- Polarising Elements (AREA)
- Fluid-Driven Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPN455495 | 1995-08-02 | ||
AUPN4554/95 | 1995-08-02 | ||
AUPN4554A AUPN455495A0 (en) | 1995-08-02 | 1995-08-02 | Improvements in or relating to valves |
PCT/AU1996/000486 WO1997005337A1 (en) | 1995-08-02 | 1996-08-02 | Improvements in or relating to valves |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0842334A1 true EP0842334A1 (en) | 1998-05-20 |
EP0842334A4 EP0842334A4 (en) | 1998-12-09 |
EP0842334B1 EP0842334B1 (en) | 2005-11-02 |
Family
ID=3788889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96925598A Expired - Lifetime EP0842334B1 (en) | 1995-08-02 | 1996-08-02 | Flush valve |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0842334B1 (en) |
JP (1) | JPH11510224A (en) |
CN (1) | CN1154775C (en) |
AT (1) | ATE308645T1 (en) |
AU (1) | AUPN455495A0 (en) |
DE (1) | DE69635373T2 (en) |
NZ (1) | NZ313562A (en) |
WO (1) | WO1997005337A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2819835B1 (en) * | 2001-01-23 | 2003-02-28 | Sanitaire Accessoires Services | WATER FLUSHING MECHANISM FOR A TOILET TANK |
GB2396163B (en) * | 2002-12-12 | 2006-05-17 | Polypipe Bathroom & Kitchen Pr | Valve assembly for discharging a cistern |
ES2244272B2 (en) * | 2003-02-06 | 2006-03-16 | Fominaya, S.A. | IMPROVEMENTS IN TOILET DISCHARGERS. |
EP1577451A1 (en) * | 2004-03-18 | 2005-09-21 | Moise Piat | Security device for waterproof closing of the valve of a toilet flush mechanism |
CN101166159B (en) | 2006-10-18 | 2010-07-28 | 阿里巴巴集团控股有限公司 | A method and system for identifying rubbish information |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH579684A5 (en) * | 1974-07-11 | 1976-09-15 | Gebert & Cie | |
DE2717142A1 (en) * | 1977-04-19 | 1978-10-26 | Hans Dubatuvka | Toilet cistern water saving double outlet valve - has two drain valves screwed one above the other on holding bracket |
IL55874A0 (en) * | 1978-11-05 | 1979-01-31 | Raz Zeev | Toilet bowl flush system |
AU8606582A (en) * | 1981-07-15 | 1983-01-20 | Robert Henry Burgess | Variable flush cistern |
AU557062B2 (en) * | 1982-01-06 | 1986-12-04 | Upl Group Ltd. | Variable flushing cistern |
AT375118B (en) * | 1982-03-31 | 1984-07-10 | Weissenbacher Herbert Mag | SUB-QUANTITY DRAINAGE DEVICE FOR SINK BOXES OD. DGL. |
DE3221747A1 (en) * | 1982-06-09 | 1983-12-15 | Ernst 5000 Köln Geuer | Metering valve system for WC flushing cisterns |
AU2108583A (en) * | 1982-11-18 | 1984-05-24 | James Hardie Industries Ltd. | Selective-flush cistern |
AU631716B2 (en) * | 1988-06-17 | 1992-12-03 | Caroma Industries Limited | A flushing mechanism |
AU633389B2 (en) * | 1990-01-11 | 1993-01-28 | Nigel James Croser | Two stage cistern flush system |
AU638573B2 (en) * | 1990-05-09 | 1993-07-01 | Philmac Pty Ltd | Dual flushing mechanism and flushing mechanism support plate |
FR2672322B1 (en) * | 1991-02-01 | 1996-10-18 | Porcher Ets | WATER FLUSHING DEVICE FOR DELIVERING DIFFERENT VOLUMES OF PREDETERMINED WATER. |
AU1384292A (en) * | 1991-03-28 | 1992-10-01 | Paul Stewart Huxtable | Multi-stage outlet valve for a cistern |
-
1995
- 1995-08-02 AU AUPN4554A patent/AUPN455495A0/en not_active Abandoned
-
1996
- 1996-08-02 EP EP96925598A patent/EP0842334B1/en not_active Expired - Lifetime
- 1996-08-02 JP JP9507022A patent/JPH11510224A/en not_active Ceased
- 1996-08-02 NZ NZ313562A patent/NZ313562A/en unknown
- 1996-08-02 WO PCT/AU1996/000486 patent/WO1997005337A1/en active IP Right Grant
- 1996-08-02 AT AT96925598T patent/ATE308645T1/en not_active IP Right Cessation
- 1996-08-02 CN CNB961968877A patent/CN1154775C/en not_active Expired - Fee Related
- 1996-08-02 DE DE69635373T patent/DE69635373T2/en not_active Expired - Fee Related
Non-Patent Citations (2)
Title |
---|
No further relevant documents disclosed * |
See also references of WO9705337A1 * |
Also Published As
Publication number | Publication date |
---|---|
AUPN455495A0 (en) | 1995-08-24 |
ATE308645T1 (en) | 2005-11-15 |
DE69635373T2 (en) | 2006-07-27 |
CN1154775C (en) | 2004-06-23 |
CN1196103A (en) | 1998-10-14 |
EP0842334A4 (en) | 1998-12-09 |
DE69635373D1 (en) | 2005-12-08 |
JPH11510224A (en) | 1999-09-07 |
WO1997005337A1 (en) | 1997-02-13 |
EP0842334B1 (en) | 2005-11-02 |
NZ313562A (en) | 1998-06-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6112763A (en) | Valves | |
US7895684B2 (en) | Canister flush valve | |
US4406024A (en) | Flushing controller for toilet | |
KR900001250Y1 (en) | Flush toilet | |
JP2004507694A (en) | Automatic water level control device with float valve with multiple outlets | |
US4573495A (en) | Hydrostatic ballcock assembly | |
US4286619A (en) | Ballcock assembly | |
EP0842334B1 (en) | Flush valve | |
US6910232B2 (en) | Toilet tank valve | |
CA2228451C (en) | Improvements in or relating to valves | |
AU712718B2 (en) | Improvements in or relating to valves | |
CA2376839C (en) | Flapper valve with dual action arm | |
US2617491A (en) | Anti-backflow device | |
US4993086A (en) | Emergency shut-off mechanism for flush tank | |
US5191662A (en) | Flush limiting mechanism | |
US4601071A (en) | Flush system | |
US11359361B1 (en) | Trapless toilet | |
US4283802A (en) | Toilet tanks with built-in water supply valve | |
WO1999054562A1 (en) | Inlet valve | |
US3543309A (en) | Fluid control apparatus | |
WO1991012381A1 (en) | Dual valve toilet flushing apparatus | |
US20080163413A1 (en) | Toilet tank fill valve emergency cut off method and apparatus | |
US6666229B2 (en) | Noise reducing housing for toilet tank fill valve | |
EP0627034B1 (en) | Main pressure flusher valve | |
US3900903A (en) | Valve mechanism and flushing system incorporating the same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19980223 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 19981028 |
|
AK | Designated contracting states |
Kind code of ref document: A4 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
17Q | First examination report despatched |
Effective date: 20010808 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RTI1 | Title (correction) |
Free format text: FLUSH VALVE |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
DAX | Request for extension of the european patent (deleted) | ||
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20051102 Ref country code: LI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20051102 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20051102 Ref country code: CH Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20051102 Ref country code: BE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20051102 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20051102 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 69635373 Country of ref document: DE Date of ref document: 20051208 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060202 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060202 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060202 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060213 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060403 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
ET | Fr: translation filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060802 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060831 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20060803 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060802 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20080814 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20080827 Year of fee payment: 13 Ref country code: FR Payment date: 20080818 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20080813 Year of fee payment: 13 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20090802 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20100430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090831 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100302 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090802 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090802 |