EP1507933B1 - Flushing device for a lavatory - Google Patents
Flushing device for a lavatory Download PDFInfo
- Publication number
- EP1507933B1 EP1507933B1 EP02703440.4A EP02703440A EP1507933B1 EP 1507933 B1 EP1507933 B1 EP 1507933B1 EP 02703440 A EP02703440 A EP 02703440A EP 1507933 B1 EP1507933 B1 EP 1507933B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- flushing
- valve
- water
- discharge valve
- 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
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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
- E03D3/10—Flushing devices with pressure-operated reservoir, e.g. air chamber
-
- 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
- E03D1/22—Twin or multiple flushing cisterns
Definitions
- the invention relates to a flushing device for a water closet according to the preamble of claim 1.
- Conventional cisterns have a float valve as a drain valve, which is opened to trigger a flush, for example by pressing a button.
- the cistern is located above the toilet bowl to be flushed, and when the float valve is opened, the flushing water flows through a flushing pipe into the toilet bowl due to the force of gravity.
- flushing devices are known in which the rinse water is placed in the cistern under pressure. When rinsing the rinse water leaves the cistern with increased energy due to the increased pressure and accordingly the rinsing effect is greater.
- the US-A-5,005,226 revealed in the FIGS. 1 to 6 a cistern of the type mentioned.
- the outlet valve has a closure body, which can be raised to Spülauslect with a hydraulic actuator.
- a piston which is sealed with a rolling diaphragm moves downward under the action of a spring and thus displaces the water present in the pressure cylinder unit.
- the piston is raised to a stop by inflowing water and at the same time the said spring is tensioned.
- the WO 98/39522 a cistern with a pressure vessel having a bottom with a purge valve.
- Water is introduced into the spherical pressure vessel to prepare a flush from a supply line.
- the pressure vessel air is supplied. This air is compressed when the water is introduced and builds up a pressure in the container. If the purge valve is opened, the water flows out of the pressure vessel due to the expanding air and due to the gravitational force through the open flush valve in the toilet bowl. Due to the increased rinsing effect can be rinsed with less water.
- a disadvantage of this flushing device that it must be designed for a relatively high pressure and that it is difficult to adjust the appropriate pressure in the container.
- the WO 95/04196 discloses a flushing device having a cistern with two water outlets. As usual, water is introduced into the toilet bowl through the one spout for rinsing. The other outlet is connected to a nozzle which is placed in a siphon of the toilet bowl and which, when rinsing, should accelerate the water of the siphon. The rinse water is not pressurized in this flushing device.
- a flushing device with two outlets and a nozzle in the siphon is relatively expensive and is not suitable in all cases.
- the invention has for its object to provide a flushing device of the type mentioned, in which the flushing amount and the pressure of the pressure piston on the rinse water at a flush are precisely defined.
- the problem is solved according to claim 1.
- the inventive flushing device is not compressed air, but a spring tensioned. This has the significant advantage that the flushing power can be easily optimized by appropriate adjustment of the spring or by additional weights and adapted to special toilet bowls.
- the pressure piston is locked in a starting position and can be unlocked for a rinsing release. This results in a precise defined flushing volume and a defined pressure of the pressure piston on the rinse water at a rinse.
- the pressure piston can be unlocked mechanically, pneumatically or electrically.
- the pressure cylinder unit receives substantially all of the rinse water.
- a pressure cylinder unit can be integrated very space-saving in a box body. It is preferably provided that the pressure cylinder unit is at least partially formed by an outer wall of the Spülkasten stressess. This allows a particularly space-saving and cost-effective production.
- the outlet valve is a servo valve.
- Such a can according to a development of the invention comprise a membrane which closes the valve under water pressure. This allows a flushing substantially without closing noise.
- a flushing can be triggered by an actuation of this element.
- a release is relatively simple and can be done mechanically, pneumatically or electrically.
- the flushing device has two pressure cylinders which are arranged in the flushing cistern, so-called dual flushing is possible. In a small flush only one of the two pressure cylinder units is emptied. For a full flush both pressure cylinder units are emptied simultaneously. In both cases, the amount of rinse water is precisely defined.
- the flushing water amount of the two pressure cylinder units may be the same or different.
- the flushing device has a cistern 1, which has a box body 2 preferably made of plastic.
- This box body 2 has a top wall 2a, a bottom wall 2b and a jacket 2c.
- an inspection opening 10 is arranged, which, however, can also be arranged in the top wall 2a.
- an outlet connection 21 which is connected to a toilet bowl, not shown here.
- the spout 21 leads horizontally in the toilet bowl.
- two pressure cylinder units 8 and 9 are arranged, each having a piston 11 and 12 respectively.
- the pistons 11 and 12 are each vertical in a pressure chamber 14 and 15, respectively displaceable and sealed with sealing rings 13 against a cylinder wall 41 and 42, respectively.
- These walls 41 and 42 each have a bottom 18 and 19, in which a passage 16 and 17 is arranged.
- These passages 16 and 17 lead into a common space 20 in which an outlet valve 27 is arranged.
- the outlet valve 27 is a servo valve and has as closure body a bellows 44 of a flexible membrane.
- the bellows 44 cooperates with a valve seat 43, which is arranged on the outlet connection 21.
- the bellows 44 is connected to a vent passage 33 which is vented by means of a vent member 31.
- a closure element 34 is raised against the retroactive force of a spring 35 by a valve seat 36 of the ventilation channel 33. This can be done according to Fig. 5 done with a cable 45.
- the closure body 34 can be lifted pneumatically or with an electric drive. Also conceivable is a remote release.
- the bellows 44 forms an interior space 40 which is permanently connected to the space 20 via a passage 28.
- the space 40 is via a water pipe 7 according to Fig. 7 connected to an inlet valve 6, which is preceded by a regulating valve 5.
- This regulating valve 5 is connected to a supply line 4.
- the inlet valve 6 is open, the interior 40 is connected to the supply line 4.
- the pistons 11 and 12 are each provided on the upper side with a pin 23 which is directed vertically upwards and cooperates with a holder 24 for locking the piston 11 and 12, respectively.
- the brackets 24 each have a bearing 25 on which locking means 26 are mounted. With this locking means 26, the pistons 11 and 12 in the in FIG. 4 shown upper starting position are releasably locked.
- the locking means 26 are formed so that the pistons 11 and 12 are automatically locked upon reaching the starting position.
- the release of the locking takes place by means of an unlocking device 30, which is in engagement with the locking members 26.
- the unlocking takes place, for example, by a horizontal movement of a locking pin 26a against the retroactive force of a spring 26b.
- a compression spring 22 is supported in each case, which abuts at a lower end on the piston 11 and 12 respectively. If the piston 11 or 12 in the in Fig. 5 raised lower position shown, the corresponding spring 22 is tensioned. When the upper position is reached, the piston 11 or 12 is automatically locked.
- the Fig. 4 shows the cistern 1 in the starting position.
- the two pressure chambers 14 and 15 are filled with rinse water.
- the springs 22 are cocked and the pistons 11 and 12 are locked in an upper home position.
- the outlet valve 27 and the vent valve 31 are closed. Closed is also the inlet valve. 6
- the unlocking device 30 is activated so that the latch 26a of the pressure cylinder unit 8 is moved and thus the piston 11 is unlocked.
- the piston 11 is thereby released and loaded by the force of the spring 22.
- the cable 45 of the Shutter body 34 of the vent valve 31 is raised.
- the pressure in the chamber 40 decreases and due to the pressure difference to the chamber 20, the bellows 44 lifts off from the valve seat 43.
- the water in the chamber 20 can thus flow through the outlet nozzle 21 into the flushing pipe, not shown.
- the flushing device has as explained the advantage that it can be optimized and adapted to special toilet bowls.
- the springs 22 can be replaced by stronger or weaker springs.
- the piston 11 and 12 according to Fig. 5 For example, annular weights 47 are placed. Such weights 47 increase the pressure of the water in the pressure chambers 14 and 15 and accordingly these pressure chambers 14 and 15 are emptied at a higher pressure flush and correspondingly faster.
- the regulating valve 5 is adapted to this changed system pressure.
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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)
- Sanitary Device For Flush Toilet (AREA)
Description
Die Erfindung betrifft eine Spülvorrichtung für ein Wasserklosett gemäss Oberbegriff des Anspruchs 1.The invention relates to a flushing device for a water closet according to the preamble of
Übliche Spülkästen weisen als Auslaufventil ein Schwimmerventil auf, das zur Auslösung einer Spülung beispielsweise durch Betätigen einer Taste geöffnet wird. Der Spülkasten ist über der zu spülenden Toilettenschüssel angeordnet und beim Öffnen des Schwimmerventils fliesst das Spülwasser infolge der Gravitationskraft durch ein Spülrohr in die Toilettenschüssel. Es sind jedoch auch Spülvorrichtungen bekannt, bei denen das Spülwasser im Spülkasten unter Druck gesetzt wird. Beim Spülen verlässt das Spülwasser infolge des erhöhten Druckes den Spülkasten mit erhöhter Energie und entsprechend ist die Spülwirkung grösser.Conventional cisterns have a float valve as a drain valve, which is opened to trigger a flush, for example by pressing a button. The cistern is located above the toilet bowl to be flushed, and when the float valve is opened, the flushing water flows through a flushing pipe into the toilet bowl due to the force of gravity. However, there are also flushing devices are known in which the rinse water is placed in the cistern under pressure. When rinsing the rinse water leaves the cistern with increased energy due to the increased pressure and accordingly the rinsing effect is greater.
Die
Die
Die
Die
Der Erfindung liegt die Aufgabe zugrunde, eine Spülvorrichtung der genannten Art zu schaffen, bei welcher die Spülmenge und der Druck des Druckkolbens auf das Spülwasser bei einer Spülung genau definiert sind. Die Aufgabe ist gemäss Anspruch 1 gelöst. Bei der erfindungsgemässen Spülvorrichtung wird nicht Luft komprimiert, sondern eine Feder gespannt. Dies hat den wesentlichen Vorteil, dass die Spülleistung durch entsprechende Einstellung der Feder oder durch zusätzliche Gewichte in einfacher Weise optimiert und an spezielle Toilettenschüsseln angepasst werden kann.The invention has for its object to provide a flushing device of the type mentioned, in which the flushing amount and the pressure of the pressure piston on the rinse water at a flush are precisely defined. The problem is solved according to
Erfindungsgemäss wird der Druckkolben in einer Ausgangsstellung verriegelt und für eine Spülauslösung entriegelbar ist. Dadurch ergibt sich eine genau definierte Spülmenge und ein definierter Druck des Druckkolbens auf das Spülwasser bei einer Spülung. Der Druckkolben kann mechanisch, pneumatisch oder elektrisch entriegelt werden.According to the invention, the pressure piston is locked in a starting position and can be unlocked for a rinsing release. This results in a precise defined flushing volume and a defined pressure of the pressure piston on the rinse water at a rinse. The pressure piston can be unlocked mechanically, pneumatically or electrically.
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass die Druckzylindereinheit im wesentlichen das gesamte Spülwasser aufnimmt. Eine Druckzylindereinheit kann sehr platzsparend in einen Kastenkörper integriert werden. Vorzugsweise ist vorgesehen, dass die Druckzylindereinheit wenigstens bereichsweise durch eine Aussenwandung des Spülkastenkörpers gebildet wird. Dies ermöglicht eine besonders platzsparende und kostengünstige Herstellung.According to a development of the invention it is provided that the pressure cylinder unit receives substantially all of the rinse water. A pressure cylinder unit can be integrated very space-saving in a box body. It is preferably provided that the pressure cylinder unit is at least partially formed by an outer wall of the Spülkastenkörpers. This allows a particularly space-saving and cost-effective production.
Gemäss einer Weiterbildung der Erfindung ist vorgesehen, dass das Auslaufventil ein Servoventil ist. Ein solches kann gemäss einer Weiterbildung der Erfindung eine Membran aufweisen, die unter Wasserdruck das Ventil schliesst. Dies ermöglicht eine Spülung im wesentlichen ohne Schliessgeräusch.According to a development of the invention it is provided that the outlet valve is a servo valve. Such a can according to a development of the invention comprise a membrane which closes the valve under water pressure. This allows a flushing substantially without closing noise.
Weist das Servoventil ein Entlüftungsorgan auf, so kann eine Spülung durch eine Betätigung dieses Organs ausgelöst werden. Eine solche Auslösung ist vergleichsweise einfach und kann mechanisch, pneumatisch oder elektrisch erfolgen.If the servo valve has a venting element, a flushing can be triggered by an actuation of this element. Such a release is relatively simple and can be done mechanically, pneumatically or electrically.
Weist die Spülvorrichtung zwei Druckzylinder auf, die im Spülkasten angeordnet sind, so ist eine sogenannte Zweimengenspülung möglich. Bei einer kleinen Spülung wird lediglich einer der beiden Druckzylindereinheiten entleert. Für eine Vollspülung werden gleichzeitig beide Druckzylindereinheiten entleert. In beiden Fällen ist die Menge des Spülwassers genau definiert. Die Spülwassermenge der beiden Druckzylindereinheiten kann gleich oder unterschiedlich sein.If the flushing device has two pressure cylinders which are arranged in the flushing cistern, so-called dual flushing is possible. In a small flush only one of the two pressure cylinder units is emptied. For a full flush both pressure cylinder units are emptied simultaneously. In both cases, the amount of rinse water is precisely defined. The flushing water amount of the two pressure cylinder units may be the same or different.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Es zeigen:
- Fig. 1
- eine räumliche Ansicht einer teilweise aufgeschnittenen Spülvorrichtung,
- Fig. 2
- eine räumliche Ansicht der, erfindungsgemässen Spülvorrichtung,
- Fig. 3
- ein Schnitt entlang der Linie III - III der
Fig. 1 , - Fig. 4
- ein Vertikalschnitt durch die erfindungsgemässe Spülvorrichtung, wobei einzelne Teile aus technischen Gründen weggelassen sind,
- Fig. 5
- ein Schnitt gemäss
Fig. 4 , jedoch nach einer Spülung mit einer Teilmenge, und - Fig. 6+7
- Schnitte durch das Auslaufventil.
- Fig. 1
- a spatial view of a partially cut open flushing device,
- Fig. 2
- a spatial view of the inventive flushing device,
- Fig. 3
- a section along the line III - III of
Fig. 1 . - Fig. 4
- a vertical section through the inventive flushing device, with individual parts are omitted for technical reasons,
- Fig. 5
- a section according to
Fig. 4 , but after a rinse with a subset, and - Fig. 6 + 7
- Cuts through the outlet valve.
Die Spülvorrichtung weist einen Spülkasten 1 auf, der einen vorzugsweise aus Kunststoff hergestellten Kastenkörper 2 besitzt. Dieser Kastenkörper 2 weist eine Deckenwandung 2a, eine Bodenwandung 2b sowie einen Mantel 2c auf. Frontseitig ist eine Revisionsöffnung 10 angeordnet, die jedoch auch in der Deckenwandung 2a angeordnet sein kann. Im unteren Bereich des Mantels 2c befindet sich ein Auslaufstutzen 21, der an eine hier nicht gezeigte Toilettenschüssel angeschlossen ist. Der Auslaufstutzen 21 führt horizontal in die Toilettenschüssel.The flushing device has a
Im Kastenkörper 2 sind zwei Druckzylindereinheiten 8 und 9 angeordnet, die jeweils einen Kolben 11 bzw. 12 besitzen. Die Kolben 11 und 12 sind jeweils in einem Druckraum 14 bzw. 15 vertikal verschiebbar und mit Dichtungsringen 13 gegenüber einer Zylinderwandung 41 bzw. 42 abgedichtet. Diese Wandungen 41 und 42 besitzen jeweils einen Boden 18 bzw. 19, in dem ein Durchgang 16 bzw. 17 angeordnet ist. Diese Durchgänge 16 und 17 führen in einen gemeinsamen Raum 20, in dem ein Auslaufventil 27 angeordnet ist. Das Auslaufventil 27 ist ein Servoventil und besitzt als Verschlusskörper einen Balg 44 aus einer flexiblen Membran. Der Balg 44 arbeitet mit einem Ventilsitz 43 zusammen, der am Auslaufstutzen 21 angeordnet ist. Wie beispielsweise die
Der Balg 44 bildet einen Innenraum 40, der über einen Durchgang 28 mit dem Raum 20 ständig in Verbindung ist. Der Raum 40 ist über eine Wasserleitung 7 gemäss
Die Kolben 11 und 12 sind jeweils oberseitig mit einem Stift 23 versehen, der vertikal nach oben gerichtet ist und jeweils zur Arretierung des Kolbens 11 bzw. 12 mit einer Halterung 24 zusammenarbeitet. Die Halterungen 24 besitzen jeweils ein Lager 25, an dem Verriegelungsmittel 26 angebracht sind. Mit diesem Verriegelungsmittel 26 können die Kolben 11 bzw. 12 in der in
An den Lagern 25 ist jeweils eine Druckfeder 22 abgestützt, die an einem unteren Ende am Kolben 11 bzw. 12 anliegt. Wird der Kolben 11 bzw. 12 in der in
Nachfolgend wird die Arbeitsweise der erfindungsgemässen Spülvorrichtung 1 näher erläutert.The operation of the
Die
Zur Auslösung einer Teilspülung, bei der beispielsweise mit drei Litern Wasser gespült wird, wird durch Drücken der in
Ist der Kolben 1 in der in
Für eine weitere Spülung besteht nun die Wahl zwischen einer Teilspülung, bei der lediglich der Druckraum 14 entleert wird und einer Vollspülung, bei welcher der Druckraum 14 als auch der Druckraum 15 entleert werden. Eine Vollspülung kann an der Taste 32b (
Die Spülvorrichtung hat wie erläutert den Vorteil, dass sie optimiert und an spezielle Toilettenschüsseln angepasst werden kann. Hierzu können beispielsweise die Federn 22 durch stärkere oder schwächere Federn ausgetauscht werden. Zudem können auf die Kolben 11 und 12 gemäss
Claims (15)
- A flushing device for a lavatory, having a flushing cistern (1) in which is arranged at least one pressure vessel (8, 9), which has a feed line (7) for water and a discharge valve (27) which pressure vessel (8, 9) is provided as pressure-cylinder unit (8, 9) in which flushing water can be subjected to pressure and can be discharged by way of a spring-force-loaded pressure piston (8, 9) through a discharge valve (27), characterized in that the pressure piston (11, 12) is locked in a starting position and can be unlocked for flushing purposes.
- Device according to claim 1, characterized in that the pressure-cylinder unit (8, 9) subjects all the flushing water to pressure.
- Device according to claim 1 or 2, characterized in that the pressure-cylinder unit (8, 9) is formed, at least in certain regions, by an outer wall (2c) of a flushing-cistern body (2).
- Device according to one of the claims 1 to 3, characterized in that the pressure-cylinder unit (8, 9) has, in a base (18, 19), a through-passage opening (16, 17) which opens out into a chamber (20), in which the discharge valve (27) is arranged.
- Device according to one of the claims 1 to 4, characterized in that the discharge valve (27) is a servovalve.
- Device according to claim 5, characterized in that the discharge valve (27) has a flexible diaphragm (54), which closes the discharge valve (27) under water pressure.
- Device according to claim 6, characterized in that the diaphragm (44) is designed as a folding bellows.
- Device according to one of claims 5 to 7, characterized in that the discharge valve (27) is triggered by actuation of an air-extraction member (31).
- The device as claimed in claim 8, characterized in that air is extracted via a channel (33) which opens out into a discharge connector (21) of the flushing cistern.
- Device according to one of claims 1 to 9, characterized in that there is provided an inflow valve (6) which is connected to a supply line (4) and opens automatically in the event of a drop in pressure.
- Device according to claim 10, characterized in that the inflow valve (6) is assigned a pressure-regulating valve (5), which closes the inflow valve (6) automatically in the case of a predetermined system pressure.
- Device according to one of the claims 1 to 11, characterized in that the discharge valve opens out into a horizontally extending discharge connector (21).
- Device according to one of the claims 1 to 12, characterized in that the discharge valve (27) has a through-passage (28) which connects an inner chamber (40) to an outer chamber (20) and through which, during the refilling operation, water is introduced into the outer chamber (20) and into at least one pressure chamber (14, 15).
- Device according to one of the claims 1 to 13, characterized in that two pressure-cylinder units (8, 9) which can be actuated independently of one another are provided.
- Device according to claim 14, characterized in that an actuating means (32a, 32b) which can optionally trigger partial flushing or full flushing is provided, merely one pressure-cylinder unit (8, 9) being actuated in the case of partial flushing.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH554012001 | 2001-03-26 | ||
CH5542001 | 2001-03-26 | ||
PCT/CH2002/000167 WO2002077377A2 (en) | 2001-03-26 | 2002-03-21 | Flushing device for a lavatory |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1507933A2 EP1507933A2 (en) | 2005-02-23 |
EP1507933B1 true EP1507933B1 (en) | 2013-05-01 |
Family
ID=4519864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02703440.4A Expired - Lifetime EP1507933B1 (en) | 2001-03-26 | 2002-03-21 | Flushing device for a lavatory |
Country Status (6)
Country | Link |
---|---|
US (1) | US7096517B2 (en) |
EP (1) | EP1507933B1 (en) |
AU (1) | AU2002237146B2 (en) |
NZ (1) | NZ528383A (en) |
PL (1) | PL362707A1 (en) |
WO (1) | WO2002077377A2 (en) |
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US8613419B2 (en) | 2007-12-11 | 2013-12-24 | Masco Corporation Of Indiana | Capacitive coupling arrangement for a faucet |
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EP2336436A1 (en) * | 2009-12-09 | 2011-06-22 | Geberit International AG | Flushing device for flushing a closet bowl, water closet with such a flushing device and closet bowl |
US8561626B2 (en) | 2010-04-20 | 2013-10-22 | Masco Corporation Of Indiana | Capacitive sensing system and method for operating a faucet |
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FR2732379B1 (en) * | 1995-03-29 | 1997-04-30 | Krzemianowski Pierre | INTERIOR SYSTEM FOR WC TANKS |
US5970527A (en) | 1997-03-07 | 1999-10-26 | W/C Technology Corporation | Pressurized water closet flushing system |
US6457187B1 (en) | 2000-02-11 | 2002-10-01 | Pulf Water Systems Inc. | Pressurized water closet flushing system |
-
2002
- 2002-03-21 WO PCT/CH2002/000167 patent/WO2002077377A2/en active IP Right Grant
- 2002-03-21 US US10/472,781 patent/US7096517B2/en not_active Expired - Fee Related
- 2002-03-21 PL PL02362707A patent/PL362707A1/en unknown
- 2002-03-21 EP EP02703440.4A patent/EP1507933B1/en not_active Expired - Lifetime
- 2002-03-21 NZ NZ528383A patent/NZ528383A/en unknown
- 2002-03-21 AU AU2002237146A patent/AU2002237146B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
AU2002237146B2 (en) | 2007-03-01 |
PL362707A1 (en) | 2004-11-02 |
EP1507933A2 (en) | 2005-02-23 |
US7096517B2 (en) | 2006-08-29 |
NZ528383A (en) | 2005-07-29 |
WO2002077377A3 (en) | 2004-12-23 |
WO2002077377A2 (en) | 2002-10-03 |
US20040128753A1 (en) | 2004-07-08 |
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