EP0931883A1 - Réservoir - Google Patents

Réservoir Download PDF

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Publication number
EP0931883A1
EP0931883A1 EP98300497A EP98300497A EP0931883A1 EP 0931883 A1 EP0931883 A1 EP 0931883A1 EP 98300497 A EP98300497 A EP 98300497A EP 98300497 A EP98300497 A EP 98300497A EP 0931883 A1 EP0931883 A1 EP 0931883A1
Authority
EP
European Patent Office
Prior art keywords
cistern
valve
control valve
siphon
collar
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.)
Withdrawn
Application number
EP98300497A
Other languages
German (de)
English (en)
Inventor
Bogdan Gesek
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
Priority to GBGB9614919.0A priority Critical patent/GB9614919D0/en
Priority to GB9704006A priority patent/GB2311177B/en
Priority to GB9714506A priority patent/GB2315283B/en
Application filed by Individual filed Critical Individual
Priority to EP98300497A priority patent/EP0931883A1/fr
Publication of EP0931883A1 publication Critical patent/EP0931883A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • 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
    • E03D1/141—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with tube siphons and with tube siphons in combination with flushing valves
    • 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
    • E03D1/08—Siphon action initiated by air or water pressure
    • E03D1/082—Siphon action initiated by air or water pressure in tube siphons
    • E03D1/087—Siphon action initiated by air or water pressure in tube siphons by pump, valve, or the like, in the short leg of the siphon or a vacuum pump in the long leg of the siphon

Definitions

  • This invention is concerned with improvements in and relating to cisterns for use with water closets.
  • the present invention is a cistern for a water closet, the cistern containing an inlet valve, means for opening and closing the inlet valve when the level of water in the tank reaches predetermined levels, an outlet valve connected with an actuator outside the cistern, a siphon associated with the outlet valve for delivering water to the outlet from the cistern, and a control valve for allowing air to enter the siphon thereby controlling the duration of the siphon effect.
  • Preferably external control means are provided for adjusting the control valve and thereby the duration of the siphon effect.
  • Indexing means may be provided between the external control means and the control valve.
  • the external control means may be a rotatable knob linked with the control valve.
  • control valve is a rotary valve having a plurality of settings.
  • the actuator may be a lever.
  • the means for opening and closing the inlet valve may be a float.
  • a cistern 10 has an inlet pipe 12 in its enclosing wall 14 for supplying water to the cistern through an inlet valve which is opened and closed by a float when the water in the cistern reaches predetermined levels.
  • an inlet valve which is opened and closed by a float when the water in the cistern reaches predetermined levels.
  • the inlet valve and float are well known the inlet valve and float are not shown in the drawings in the interests of clarity.
  • the cistern 10 is provided with a siphon 16 for delivering water from the cistern to an outlet pipe when an outlet valve is actuated.
  • the siphon 16 consists of a large diameter chamber 18 at the bottom of which is located the outlet valve (not illustrated), the bottom of the chamber 18 communicating with the interior of the cistern 10 and the top of the chamber 18 connecting with an inverted U-tube having first and second limbs 20 and 22, the limb 22 leading to the outlet from the cistern.
  • the outlet valve consists of a piston extending across the chamber 18 and in which is provided a one way flap valve allowing water to flow from the body of the cistern through the disc into chamber 18 and the first limb 20 of the U-tube.
  • a piston rod 24 extends upwardly from the piston through the top of the chamber 18 and is connected through a lever system to an external actuator in the form of a handle 26.
  • the lever system between the handle 26 and the piston rod 24 consists of an actuator shaft 28 which rotates with the handle 26, a lever arm 30 keyed on the end of the shaft 28, and a link 32 between the free end of the lever arm 30 and the top of the piston rod 24.
  • the flap valve When the piston is raised in the chamber 18 the flap valve is held shut and the piston carries with it the water in the chamber 18 and the first limb 20 of the U-tube until the water spills over into the second limb 22 of the U-tube.
  • the water passing down the second limb 22 reduces the pressure in the first limb 20 while the water in the chamber 18 below the piston is at atmospheric pressure, with the result that the flap valve opens to allow the water in the body of the cistern to pass through the piston and U-tube to the cistern outlet. This continues until the water level in the cistern drops below the bottom of the chamber 18 allowing air into the siphon to destroy the vacuum in the U-tube and the siphonic effect.
  • the siphon is modified by having a rotary control valve 36 inserted into the top of the first limb 20 of the U-tube to allow air to enter the siphon at a controlled rate.
  • the control valve 36 has a spindle 38 to which is keyed a lever 40 which is connected through a link 42 to an arm 44 projecting from a collar 46.
  • the control valve 36 has a plurality of settings, in this embodiment three settings corresponding to three different rates of air flow into the siphon.
  • the control valve 36 has an outer casing 47 in which is provided a hole 48, and the rotary spindle 38 has two holes which communicate through the spindle 38 with the interior of the limb 20 of the U-tube.
  • the two holes are of different sizes and the cooperation of each of the holes 49 with the casing hole 48 provides two settings of the control valve, the third setting being when no hole is cooperating with the casing hole 48.
  • a control knob 50 is exposed at the end of a cover 52 which, as best seen in Fig.1, has an opening 54 in its side wall to enable the handle 26 to be depressed to empty the cistern.
  • a second opening 56 is provided in the cover 52 to expose markings, such as MIN, MED and MAX, on the control knob 50 indicative of the setting of the control valve 36.
  • a control shaft 58 Extending inwardly from the control knob 50 is a control shaft 58 which surrounds the actuator shaft 28 and mounts the collar 46.
  • An index ring 60 is secured to the wall 10 of the cistern and surrounds the control shaft 58 and is on a common axis therewith, the index ring 60 having three notches 62 facing the collar 46 and the collar 46 having a tooth 64 facing the index ring 60 for cooperating with the notches 62.
  • the index ring 60 and the toothed collar 46 constitute an indexing mechanism.
  • the index ring 60 in this embodiment is provided by the end of a threaded boss which is integral with the cover 52 and extends through the wall of the cistern, and by which the cover is secured to the wall of the cistern.
  • control knob 50, control shaft 58 and collar 46 are biassed outwardly by a spring 66 so that the tooth 64 is in engagement with one of the notches 62 in the index ring 60 thus accurately establishing the setting of the control valve 36.
  • the control knob 50 is pushed inwardly against the bias of the spring 66 to move the collar axially relative to the ring and disengage the tooth 64 from the notch 62 with which it is engaged, is then rotated to a position indicated by one of the markings exposed at the window 56 and released to allow the tooth 64 to engage the new notch 62 with which it is now aligned and thus ensure accurate indexing of the collar 46 and an accurate setting of the control valve 36.
  • the control valve 36 is allowing air to enter the siphon and eventually the vacuum in the siphon is insufficient to maintain the siphon effect and the flushing cycle is terminated.
  • the time at which the cycle is terminated is determined by the rate at which air is allowed to enter the siphon, i.e. the setting of the control valve 36, and the earlier the cycle is terminated the less water is used in that cycle.
  • Fig.3 illustrates the embodiment of Fig.1 modified to suit a cistern having its flushing handle 26 at the side of the cistern, the same reference numerals being used in all the Figs. to denote the same or equivalent parts.
  • control valve is located externally of the siphon on a mounting block.
  • the block has a first passage extending across the block and a second passage extending at right angles to the first and connecting the first passage to the interior of the siphon through a projection on the block which passes through a hole in the wall of the siphon.
  • this block simplifies the fitting of the control valve to a cistern as it is only necessary to drill the hole in the side of the siphon, insert the projection into the hole and secure the block in position by an adhesive, place the valve at one end of the first passage and blank off the other end, and then connect the valve to the handle through a lever system.
  • control valve is mounted remote from the siphon and the air passing through the valve is connected into the siphon by a flexible tube.
  • control valve is formed integrally with the setting control mechanism and is connected to the index ring by, for example, gears.

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)
  • Fluid-Driven Valves (AREA)
EP98300497A 1996-03-13 1998-01-26 Réservoir Withdrawn EP0931883A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GBGB9614919.0A GB9614919D0 (en) 1996-07-16 1996-07-16 Air controlled limited flushing system manual automatic electrical
GB9704006A GB2311177B (en) 1996-03-13 1997-02-26 Residual current devices
GB9714506A GB2315283B (en) 1996-07-16 1997-07-10 Variable-flush facility for siphon-discharge flushing cistern
EP98300497A EP0931883A1 (fr) 1996-07-16 1998-01-26 Réservoir

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9614919.0A GB9614919D0 (en) 1996-07-16 1996-07-16 Air controlled limited flushing system manual automatic electrical
EP98300497A EP0931883A1 (fr) 1996-07-16 1998-01-26 Réservoir

Publications (1)

Publication Number Publication Date
EP0931883A1 true EP0931883A1 (fr) 1999-07-28

Family

ID=26151115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98300497A Withdrawn EP0931883A1 (fr) 1996-03-13 1998-01-26 Réservoir

Country Status (2)

Country Link
EP (1) EP0931883A1 (fr)
GB (2) GB9614919D0 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005080699A1 (fr) * 2004-02-17 2005-09-01 David George Wilks Siphon de w.-c. et systeme de clapet
CN103334476A (zh) * 2013-06-28 2013-10-02 恺霖卫浴科技（厦门）有限公司 双排量排水装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9622471D0 (en) * 1996-10-29 1997-01-08 Price Peter G Improvements in or relating to siphon action flushing arrangements
CA2230268A1 (fr) * 1997-02-25 1998-08-25 David A. Saar Siphon pour toilette a chasse d'eau
IE980208A1 (en) * 1997-03-20 1998-09-23 Thomas Meacle A flush control system for a W.C. cistern.
GB9712708D0 (en) * 1997-06-18 1997-08-20 Mckenzie Martin S Toilet syphon
GB9808260D0 (en) * 1998-04-20 1998-06-17 Brann Peter Lavatory flush control
CA2514705C (fr) * 2004-08-06 2010-11-02 Edward H. Heath Chasse d'eau a double action pour toilettes

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869141A (en) * 1955-04-05 1959-01-20 Royal G Koch Valve for liquid reservoirs and particularly for water closets with water control means
US4296505A (en) * 1980-01-16 1981-10-27 Chien Sheng Chiang Stepless controlled flush closet
DE3410140A1 (de) * 1984-03-20 1985-04-04 Hartwig Dipl.-Ing. 6149 Fürth Zöller Glockenheberventil fuer spuelwasserkaesten
GB2162214A (en) * 1984-07-28 1986-01-29 Robert Samuel Bell Method and apparatus for controlling the outflow of a syphonic cistern
GB2235708A (en) * 1989-08-31 1991-03-13 Edward Ernest Price Double siphon fluid regulator for W.C.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2273510B (en) * 1992-12-11 1997-01-15 Derwent Macdee Limited Variable flush syphonic apparatus
GB9303875D0 (en) * 1993-02-26 1993-04-14 Shires Ltd Variable flush wc syphon
GB2275697B (en) * 1993-03-01 1997-08-27 Polypipe Plc Variable discharge syphon for use in a cistern

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869141A (en) * 1955-04-05 1959-01-20 Royal G Koch Valve for liquid reservoirs and particularly for water closets with water control means
US4296505A (en) * 1980-01-16 1981-10-27 Chien Sheng Chiang Stepless controlled flush closet
DE3410140A1 (de) * 1984-03-20 1985-04-04 Hartwig Dipl.-Ing. 6149 Fürth Zöller Glockenheberventil fuer spuelwasserkaesten
GB2162214A (en) * 1984-07-28 1986-01-29 Robert Samuel Bell Method and apparatus for controlling the outflow of a syphonic cistern
GB2235708A (en) * 1989-08-31 1991-03-13 Edward Ernest Price Double siphon fluid regulator for W.C.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005080699A1 (fr) * 2004-02-17 2005-09-01 David George Wilks Siphon de w.-c. et systeme de clapet
GB2426258A (en) * 2004-02-17 2006-11-22 David George Wilks Toilet siphon and valve arrangement
GB2426258B (en) * 2004-02-17 2008-05-21 David George Wilks Toilet siphon and valve arrangement
CN103334476A (zh) * 2013-06-28 2013-10-02 恺霖卫浴科技（厦门）有限公司 双排量排水装置
CN103334476B (zh) * 2013-06-28 2016-01-20 恺霖卫浴科技（厦门）有限公司 双排量排水装置

Also Published As

Publication number Publication date
GB2315283B (en) 2000-08-02
GB2315283A (en) 1998-01-28
GB9714506D0 (en) 1997-09-17
GB9614919D0 (en) 1996-09-04

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