EP0794292B1 - An actuating mechanism for flushing systems for water closets - Google Patents

An actuating mechanism for flushing systems for water closets Download PDF

Info

Publication number
EP0794292B1
EP0794292B1 EP97108450A EP97108450A EP0794292B1 EP 0794292 B1 EP0794292 B1 EP 0794292B1 EP 97108450 A EP97108450 A EP 97108450A EP 97108450 A EP97108450 A EP 97108450A EP 0794292 B1 EP0794292 B1 EP 0794292B1
Authority
EP
European Patent Office
Prior art keywords
float
actuating mechanism
liquid
release
flush 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.)
Expired - Lifetime
Application number
EP97108450A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0794292A1 (en
Inventor
Gösta Leopold Hammarstedt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0794292A1 publication Critical patent/EP0794292A1/en
Application granted granted Critical
Publication of EP0794292B1 publication Critical patent/EP0794292B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E03D1/06—Cisterns with tube siphons
    • E03D1/12—Siphon action initiated by outlet of air
    • 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
    • E03D1/06—Cisterns with tube siphons
    • E03D1/12—Siphon action initiated by outlet of air
    • E03D1/125—Siphon action initiated by outlet of air in cisterns with tube siphons

Definitions

  • the present invention relates to water closets and a flushing system, which permits essentially reducing the force required for initiating a flushing operation by using a siphon-based flushing system. More particularly, the invention relates to an actuating mechanism which is especially well suited for use in such a new and improved flushing system.
  • GB-A-2,205,595 discloses a flushing system for water closets which has a double siphon immersed in a flush cistern.
  • This siphon has an almost sinuous conduit with four juxtaposed vertical conduit legs and U-bends successively interconnecting the conduit legs. The central bend is facing downwards and interconnects the lower ends of the two central conduit legs, while the two outer U-bends are facing upwards and connect the upper ends of the central conduit legs to the upper ends of the outer conduit legs.
  • This approximately sinusoidally-bent conduit is arranged in a flush cistern and is completely immersed in the water when the flush cistern is filled therewith.
  • the first vertical conduit leg acts as the suction pipe of the siphon
  • the last vertical conduit leg acts as the outlet pipe of the siphon and is connected to a flushing ramp at the upper end of the water closet.
  • From the upper end of the upwardly-facing first U-bend further extends a downwardly-directed U-bent venting tube which at the upper end of its other U-leg is connected to the upwardly-facing third U-bend a certain distance below the crest of this U-bend.
  • This venting tube shaped as a U-bend, acts as a water trap in the starting position of the flushing system when the cistern is filled.
  • the water in the water trap is removed by means of an air ball which is connected to the lower U-web of the U-bent venting tube and which, upon compression and, hence, increase of the air pressure in the system, displaces the water in the water trap and evacuates it into the outlet pipe of the siphon.
  • a communication is established between the upper end of the first upwardly-facing U-bend and the third upwardly-facing U-bend, such that air entrapped in the first upwardly-facing U-bend can be evacuated through the venting tube, whereby the entire sinuous conduit loop is intended to be filled with water so as to initiate the siphon function for evacuating the major part of the water in the flushing system into the outlet pipe by suction.
  • the system also includes a further U-bent conduit which is connected to the crest of the third U-bent conduit of the double siphon and extends up over the maximum water level in the flush cistern and opens on a level with the intended minimum water level in the flush cistern.
  • Danish Patent Specification DK-B-57,606 describes a flush cistern which also uses a type of double siphon.
  • a flushing mechanism which has a water trap.
  • an actuator piston which, when lifted, will lower the water level in the water trap and, hence, also reduce the pressure of the water column.
  • the actuator mechanism is disposed in an upwardly-oriented compartment at the inlet end of this U-bend.
  • An object of the present invention is to provide an improvement of the actuating mechanisms described in GB-A-2,205,595 and DK-B-57,606. This and other objects of the invention are achieved by means of an actuating mechanism having the features stated in claim 1.
  • the subclaims define especially advantageous embodiments of the invention.
  • the invention relates to an actuating mechanism for a flushing system having an outlet device arranged in a flush cistern and an inlet device.
  • This inlet device has a float device for controlling the supply of liquid into the flush cistern by an inlet valve included in the inlet device.
  • the float of said float device is operatively connected to the inlet valve via a link system for opening and closing the inlet valve depending on the liquid level in the flush cistern.
  • the outlet device of the actuating mechanism comprises a release means for opening the outlet valve of the outlet device.
  • the actuating mechanism has a locking device for preventing the initiation of a new flushing operation before the flush cistern has again been filled with liquid to above a predetermined minimum level.
  • Figs 1-6 schematically show a flushing system with an actuating mechanism according to the present invention.
  • an outlet device 11 is immersed.
  • the outlet device is designed as a double siphon in the form of an approximately sinusoidally-extending conduit having four juxtaposed conduit legs 12, 13, 14, 15 and U-bends 16, 17 and 18 successively interconnecting the conduit legs.
  • the central U-bend 17 is facing downwards and interconnects the lower ends of the two central conduit legs 13, 14.
  • the two outer U-bends 16, 18 are facing upwards and connect the upper ends of the two central conduit legs 13, 14 to the upper ends of the outer conduit legs 12, 15.
  • the first vertical conduit leg 12 is intended to act as the suction pipe of the siphon.
  • the last vertical conduit leg 15 is intended to act as the outlet pipe of the siphon and is connected in customary manner to a flushing ramp (not shown) at the upper end of the bowl of a water closet.
  • the flushing system also has a venting tube 19 serving to evacuate air which, when the flush cistern 10 is filled with liquid, is entrapped in the first upwardly-facing U-bend 16 of the double siphon.
  • One end of the venting tube 19 is connected to a point on the downstream side of this U-bend and extends up over the level of the crests of the upwardly-facing U-bends 16, 18 to be connected at its other end to an actuating mechanism 20.
  • This mechanism includes a nonreturn valve 21 comprising a. substantially vertical piston chamber 22, in which a starter piston 23 is provided for vertical movement.
  • the upper end of the piston chamber 22 can be connected to the ambient air at a point above the maximum water level 24 in the flush cistern.
  • the piston chamber further has a liquid sump 25 which is located below the opening of the venting tube 19 in the piston chamber 22.
  • the liquid sump has a sufficient volume for holding liquid that remains in the starter-piston chamber 22 and the venting tube 19 when the flush cistern 10 is filled.
  • the starter piston 23 and the starter-piston chamber 22 are so designed that air- and liquid-tight engagement is produced within a conically flared portion 26.
  • a special seal can be used between an outwardly directed flange and an engagement surface, as will be described further on. This seal within the conically flared portion or a similar seal provides the desired nonreturn-valve function.
  • the starter piston 23 and the piston chamber 22 are so designed that when the starter piston is lifted, air will be sucked into the starter-piston chamber 22 and, consequently, liquid present in the starter-piston chamber and the venting tube will flow down into the liquid sump 25.
  • the air entrapped in the first U-bend 16 in the starting position (Fig. 1) can be evacuated via the venting tube 19 and the nonreturn valve 21.
  • FIGs 1-6 show the sequence of the different phases of operation.
  • Fig. 1 shows the flushing system in the starting position when the cistern 10 is filled with liquid and the starter piston 23 is in its lower position, in which the flared portion 26 sealingly engages the starter-piston chamber. In this position, air is entrapped in the U-bend 16 and the venting tube 19. An overpressure prevails, which appears from the differences between the liquid levels 31, 31' in the first three conduit legs 12, 13 and 14.
  • the starter piston 23 is lifted so that air can pass from above into the starter-piston chamber 22 and so that the liquid entrapped therein flows down into the liquid sump 25 to expose the opening of the venting tube 19.
  • the air entrapped in the U-bend 16 will be discharged by the liquid pressure through the starter-piston chamber.
  • the resulting liquid surge makes the liquid fill the first U-bend 16 of the double siphon and thereafter the entire siphon as well, such that the siphon function is initiated and liquid is discharged from the flush cistern.
  • Fig. 3 shows the state when the first three conduit legs 12, 13, 14 are completely filled with liquid.
  • Fig. 5 shows the next stage when flushing proceeds.
  • this stage there is a negative pressure in the double siphon and, hence, also in the venting tube 19 and the starter-piston chamber 22. Suction of air into the double siphon via the starter-piston chamber is prevented by the above-mentioned nonreturn-valve function. Flushing proceeds until air is sucked into the double siphon through the inlet of the conduit leg 12.
  • Fig. 6 shows this position. If a smaller flushing liquid amount is desired than that corresponding to evacuation as far as the lower end of the first conduit leg, it is possible to provide holes on different levels along the first conduit leg, e.g. for achieving a 4-litre or a 6-litre flushing liquid amount.
  • a major advantage of this system is that the flushing operation is easily started and requires but a slight force, in that the liquid column in the piston chamber 22 over the inlet 29 of the venting tube 19 substantially outbalances the overpressure represented by the difference in level between the liquid surfaces 31 and 31'.
  • the system is advantageous in so far as the starter ball used in GB-A-2,205,595 has been dispensed with and the flushing operation can be initiated by traditional measures, i.e. by either lifting a piston or by depressing a button so as to lift the piston.
  • Fig. 7 shows a preferred embodiment of a flushing system and an actuating mechanism according to the present invention.
  • the flushing system is mounted on the bottom 27 of a flush cistern.
  • the double siphon 11 has its four conduit legs 12, 13, 14, 15 arranged substantially vertically beside each other. As appears from Fig. 11, the conduit legs have flattened cross-section to promote laminar flow. However, the cross-sectional shape need not be as flattened as shown in Fig. 11, but an oval or square cross-section can also be used.
  • the flow passage of the double siphon is preferably designed with a reduced flowthrough area from the conduit leg 12 to a location in the conduit leg 15 in order to improve the flow, to increase the flow velocity and to promote the laminar flow.
  • the last conduit leg or outlet pipe 15 is connected to an outlet sleeve 28, in turn connected to the conventional flushing ramp (not shown) of the water closet.
  • the venting tube 19 is connected to the second conduit leg 13 at a point facing away from the first conduit leg and close to the upper end of second conduit leg 13, i.e. along the wall surface where the air flows when evacuating the entrapped air bubble.
  • the reason for this placement is that the inlet 29 of the venting tube 19 should be disposed so far away in the downstream direction that the air is completely displaced by the water flowing into the conduit leg 12 upon the initiation of the flushing operation.
  • the outlet end of the venting tube 19 is connected to the piston chamber 22 at a point which is preferably located slightly below the liquid levels 31 in the first conduit leg and the third conduit leg in the starting position of the flushing system (see Fig. 7).
  • the starter piston 23 has an outwardly-directed flange 32 which in the closed state of the nonreturn valve engages an edge 33 on the starter-piston chamber 22. If so required, the flange 32 may be provided with a seal, with which it engages the edge 33.
  • the piston 23 has two floating bodies 34 for a purpose which will be described in more detail hereinafter (Fig. 11). These floating bodies are disposed on the outside of the starter-piston chamber 22 and depend below the upper edge 33 of the chamber.
  • the upper face of the piston is provided with a lug 35, in which a locking latch 36 is pivotally mounted for pivotal movement between a locking position indicated by full lines and a release position indicated by dash-dot lines in Fig. 7.
  • the locking surface 37 of the latch engages a stationary locking surface on a fork 38.
  • this preferably has a projection 39 stopping the outward pivotal movement by engaging the upper face of the piston 23.
  • the float 40 of the flushing system has been designed as a downwardly open bell which is guided in a float chamber 41 for vertical movement therein.
  • the chamber 41 is fixedly connected to the double siphon 11 and the piston chamber 22.
  • the float chamber 41 is intended to be filled with flushing liquid, which is achieved by the liquid, when filling the flush cistern, flowing over the top edge of the float chamber and down between this and the float 40.
  • a nonreturn valve 42 in the form of a pivotable valve plate mounted for pivotal movement about a pivot pin 43 adjacent the upper edge of the float chamber.
  • the nonreturn valve is inclined so as to be urged downwards, when in its normal position, by the force of gravity into abutment against the side of the float chamber and into sealing engagement with a valve seat 44.
  • the float chamber will be successively evacuated as the liquid level in the flush cistern is sinking.
  • filling of the float chamber with flushing liquid is prevented until the flushing liquid can flow over the top edge of the float chamber.
  • the float 40 has an upright 45, at the top end of which a pivot pin 46 is provided. This pin is connected to a control arm 47 for a conventional inlet valve 48.
  • the valve 48 is closed in the position shown in Fig. 7 and open in the position shown in Fig. 9.
  • the actuating mechanism in the embodiment of Fig. 7 has a release means 49 which in this embodiment is a push-button mechanism having at its lower end a laterally projecting actuator 50 which is resiliently biased upwards by a spring unit 51.
  • the spring unit 51 may be integrally formed with the components 49 and 50.
  • the free end of the spring unit 51 is fixed in the body 53 of the mechanism in a suitable manner, e.g. by means of projecting pins 52.
  • the body 53 is integrally formed with the fork 38 and thus forms a stationary element. In this stationary element is fixed a pivot pin 54.
  • a sensor lever 55 is pivotally fixed with one end.
  • the other end of the sensor lever is designed as a cam follower 56 which engages the upper face of the float 40, this face thus serving as a cam surface 57.
  • the sensor lever 55 has a pivot pin 58, on which a release rocker arm 59 is pivotally mounted.
  • the rocker arm is designed as a double-armed lever and engages the actuator 50 with one end 60 and a cam surface 62 on the locking latch 36 with the other end 61.
  • a downward pressure on the release means 49 against the action of the spring 51 produces a pivotal movement of the release rocker arm 59 in the clockwise direction with respect to Fig. 7, such that the locking latch 36 is released from its locking engagement with the fork 38 and is swung to its position indicated by dash-dot lines.
  • Fig. 8 only shows an instantaneous position to illustrate the function of the mechanism.
  • the piston 23 has thus been lifted so that the liquid entrapped in the piston chamber and the venting tube can flow down into the liquid sump 25.
  • the air entrapped in the first U-bend 36 and parts of the second conduit leg 13 will flow out and be evacuated through the venting tube 19 and the piston chamber 22 into the free air over the liquid surface 24 in the cistern 10. This initiates the siphon function, and the flushing liquid is discharged to the flushing ramp of the water closet in the manner described above.
  • the gap between the components 50 and 60 is maintained during the entire filling procedure by the float 40 remaining in its lower position (Fig. 9) until water flows into the float chamber 41 via the top edge of the float chamber, since the nonreturn valve 42 prevents water from flowing in before that.
  • a float chamber 41 is however not necessary for maintaining this locking function against renewed initiation of the flushing operation. It is however essential that the mechanism be so designed that a restart of the flushing operation is not possible before the liquid level in the flushing system has been restored to a position above the crest of the venting tube 19.
  • Fig. 9 shows the positions of the components after the liquid level has sunk to such an extent that the floating bodies 34 are no longer capable of holding the starter piston 23 in a lifted position.
  • the nonreturn-valve function is achieved, i.e. a sealing engagement exists between the flange 32 and the top edge of the piston chamber 22. This function is also promoted by the engagement of the latch 36 with the fork 38.
  • the floats 34 should be designed with a lifting power which is so adjusted that the sealing function of the nonreturn valve is achieved before the liquid level in the flushing system has sunk to below the upper crest of the venting tube 19. In fact, it is essential that liquid remains in the venting tube and the piston chamber in order that an air plug or lock should remain in the U-bend 16 when the flush cistern is again being filled with liquid.
  • Figs 7-15 show a preferred embodiment of an actuating mechanism according to the invention.
  • the actuating mechanism can also be designed otherwise, a conceivable embodiment being illustrated in Figs 16-18.
  • the release rocker arm 59 lifts the piston 23 by directly engaging and lifting a laterally-directed hook 63 on the piston 23.
  • the floating bodies 34 will take over the lifting power and lift the piston to the position shown in Fig. 17.
  • this embodiment functions in the same way as the embodiment in Figs 7-15.
  • the actuating mechanism need not necessarily have a single-armed sensor lever 55.
  • This lever may also be double-armed, in which case a reversal of the direction of movement can be carried out in a suitable manner, such that pressures or tractions in the release means will start the flushing operation.
  • a person skilled in the art may easily provide such as modification of the system.
  • the double siphon of the flushing system may suitably be formed from plastics material and be made in two halves forming a parting plane against each other, as shown in Figs 11-13.
  • the different conduit legs 12-15 need not have exactly the flattened shape as shown at 11, but the conduits preferably are of such a flattened shape or of oval shape to provide or promote a laminar flow. In fact, a laminar flow promotes the achievement of an efficient evacuation of all the air entrapped in the system at the start of the flushing operation.
  • the use of an actuating mechanism with no floating bodies 34 also falls within the scope of the invention. In such a case, the starter piston can be lifted directly, as indicated in Figs 1-6.
  • the actuating mechanism described above is especially well suited for the flushing system according to Figs 7-18, but can of course also be used for other flushing systems where it is desirable to prevent a restart of the flushing operation until a certain minimum level of the liquid in the flush cistern has been exceeded during the filling procedure.
  • the first conduit leg 12 may have air-suction holes 64 on different vertical levels, e.g. one level for discharging 4 litres of flushing liquid and another level for discharging 6 litres of flushing liquid.
  • the fitter then plugs the air suction hole or holes 64 not to be used.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Physical Water Treatments (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Float Valves (AREA)
EP97108450A 1993-06-22 1994-06-22 An actuating mechanism for flushing systems for water closets Expired - Lifetime EP0794292B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9302173A SE504888C2 (sv) 1993-06-22 1993-06-22 Spolsystem för WC-stolar
SE9302173 1993-06-22
EP94919955A EP0725866B1 (en) 1993-06-22 1994-06-22 Flushing system for water closets

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP94919955A Division EP0725866B1 (en) 1993-06-22 1994-06-22 Flushing system for water closets
EP94919955.8 Division 1995-01-05

Publications (2)

Publication Number Publication Date
EP0794292A1 EP0794292A1 (en) 1997-09-10
EP0794292B1 true EP0794292B1 (en) 2003-08-13

Family

ID=20390392

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97108450A Expired - Lifetime EP0794292B1 (en) 1993-06-22 1994-06-22 An actuating mechanism for flushing systems for water closets
EP94919955A Expired - Lifetime EP0725866B1 (en) 1993-06-22 1994-06-22 Flushing system for water closets

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP94919955A Expired - Lifetime EP0725866B1 (en) 1993-06-22 1994-06-22 Flushing system for water closets

Country Status (11)

Country Link
EP (2) EP0794292B1 (sv)
AT (2) ATE247198T1 (sv)
AU (1) AU7089894A (sv)
DE (2) DE69408860T2 (sv)
DK (2) DK0725866T3 (sv)
ES (2) ES2113112T3 (sv)
FI (2) FI103139B (sv)
NO (2) NO320990B1 (sv)
SE (1) SE504888C2 (sv)
SG (1) SG49589A1 (sv)
WO (1) WO1995000719A1 (sv)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1640515A1 (de) 2004-09-27 2006-03-29 MEPA- Pauli und Menden GmbH Spülkasten mit zusätzlicher Lufteinleitung, sowie Verwendung eines solchen Spülkastens
DE102004046721B4 (de) * 2004-09-27 2010-09-09 Mepa - Pauli Und Menden Gmbh Spülsystem mit Luftmengensteuerung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100359107C (zh) * 2002-10-22 2008-01-02 高炯 双控制mn型洁具
DE102004046722A1 (de) * 2004-09-27 2006-04-06 Mepa - Pauli Und Menden Gmbh Spülsystem mit Lufteinleitung
EP2045406A1 (de) * 2007-10-04 2009-04-08 Hermann Isenmann Wasserkasten mit zusätzlicher Wassereinleitung sowie Verfahren zur Entleerung
ES2899993T3 (es) * 2013-02-06 2022-03-15 Geberit Int Ag Un dispositivo de descarga sifónica

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1792588A (en) * 1930-05-09 1931-02-17 George R Jaggard Siphon flush
DK57606C (da) * 1937-09-13 1940-05-14 Sven Boerje Fredrik Carlstedt Skyllecisterne.
US3510884A (en) * 1969-03-11 1970-05-12 Frank Philip Sloan Siphon valve
US4114208A (en) * 1977-06-01 1978-09-19 Imler Carl E Water closet flush valve
SE426083B (sv) * 1982-01-15 1982-12-06 Ifoe Sanitaer Ab Ventilanordning for vattenklosetter
GB2205595B (en) * 1987-06-10 1991-04-10 Nat Research & Dev Corp The Improvements in or relating to cisterns

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1640515A1 (de) 2004-09-27 2006-03-29 MEPA- Pauli und Menden GmbH Spülkasten mit zusätzlicher Lufteinleitung, sowie Verwendung eines solchen Spülkastens
EP1640516A2 (de) 2004-09-27 2006-03-29 MEPA- Pauli und Menden GmbH Zweimengenspülkasten sowie seine Verwendung
DE102004046721B4 (de) * 2004-09-27 2010-09-09 Mepa - Pauli Und Menden Gmbh Spülsystem mit Luftmengensteuerung

Also Published As

Publication number Publication date
FI990178A (sv) 1999-02-01
AU7089894A (en) 1995-01-17
SE9302173L (sv) 1994-12-23
FI955824A0 (sv) 1995-12-04
DE69408860D1 (de) 1998-04-09
EP0794292A1 (en) 1997-09-10
FI103139B1 (sv) 1999-04-30
FI107281B (sv) 2001-06-29
DK0794292T3 (da) 2003-10-20
EP0725866A1 (en) 1996-08-14
DE69408860T2 (de) 1998-09-24
NO955162D0 (no) 1995-12-19
NO955162L (no) 1995-12-19
SG49589A1 (en) 1998-06-15
FI103139B (sv) 1999-04-30
EP0725866B1 (en) 1998-03-04
ES2200097T3 (es) 2004-03-01
SE9302173D0 (sv) 1993-06-22
FI955824A (sv) 1995-12-12
NO20053505L (no) 1995-12-19
WO1995000719A1 (en) 1995-01-05
NO320990B1 (no) 2006-02-20
DE69433039D1 (de) 2003-09-18
FI990178A0 (sv) 1999-02-01
ES2113112T3 (es) 1998-04-16
ATE247198T1 (de) 2003-08-15
DK0725866T3 (da) 1998-05-11
DE69433039T2 (de) 2004-04-15
SE504888C2 (sv) 1997-05-20
ATE163709T1 (de) 1998-03-15

Similar Documents

Publication Publication Date Title
US7353547B2 (en) Discharge valve for a flushing cistern
US5926861A (en) Discharge valve
US6704945B2 (en) Dual inlet flush valve system for gravity operated toilets
US5742951A (en) Inlet valve mechanism
EP0794292B1 (en) An actuating mechanism for flushing systems for water closets
EP2321476B1 (en) Cistern draining apparatus with movable siphon
US6874172B2 (en) Dual discharge valve
EP0618988B1 (en) A fluid discharge valve
US5426794A (en) Vacuum assisted toilet with controlled vacuum
AU7502398A (en) Actuating device for a WC cistern drain valve
GB2336605A (en) Cistern outlet valve
US5386596A (en) Water saver toilet
US255485A (en) James e
CA2150414C (en) A refilling preventing system for a toilet tank
US5353444A (en) Primer activated wet leg-control vented low level syphon flush for toilets
AU740241B2 (en) Discharge valve apparatus
USRE11351E (en) boyle
CN117385981A (zh) 一种气控液压给水阀液面高度控制装置
GB2329398A (en) Syphon assembly for flushing cistern
JPH0310217Y2 (sv)
AU4742299A (en) Discharge valve
WO2001036757A1 (en) Cistern flushing mechanism

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

AC Divisional application: reference to earlier application

Ref document number: 725866

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19971210

17Q First examination report despatched

Effective date: 20020528

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AC Divisional application: reference to earlier application

Ref document number: 0725866

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL 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: 20030813

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: 20030813

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20030813

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: 20030813

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: 20030813

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: 20030813

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

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REF Corresponds to:

Ref document number: 69433039

Country of ref document: DE

Date of ref document: 20030918

Kind code of ref document: P

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

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2200097

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
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: 20040514

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20050606

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20060613

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: 20060615

Year of fee payment: 13

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 NON-PAYMENT OF DUE FEES

Effective date: 20060623

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070228

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20060623

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20070622

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: 20060630

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: 20070622

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20080612

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20080613

Year of fee payment: 15

Ref country code: DE

Payment date: 20080730

Year of fee payment: 15

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090630

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 NON-PAYMENT OF DUE FEES

Effective date: 20090623