WO2002048472A3 - Toilet cistern dual flush valve - Google Patents

Toilet cistern dual flush valve Download PDF

Info

Publication number
WO2002048472A3
WO2002048472A3 PCT/IB2001/002475 IB0102475W WO0248472A3 WO 2002048472 A3 WO2002048472 A3 WO 2002048472A3 IB 0102475 W IB0102475 W IB 0102475W WO 0248472 A3 WO0248472 A3 WO 0248472A3
Authority
WO
WIPO (PCT)
Prior art keywords
stem
discharged
water
cistern
flush valve
Prior art date
Application number
PCT/IB2001/002475
Other languages
French (fr)
Other versions
WO2002048472A2 (en
Inventor
John Nicoll Sutherland
John Clark Bassil
Karl Thomas Tickle
Anthony Ross Welsh
Zyl Christiaan Van
Original Assignee
Dutton Plastics Engineering Pt
John Nicoll Sutherland
John Clark Bassil
Karl Thomas Tickle
Anthony Ross Welsh
Zyl Christiaan Van
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 Dutton Plastics Engineering Pt, John Nicoll Sutherland, John Clark Bassil, Karl Thomas Tickle, Anthony Ross Welsh, Zyl Christiaan Van filed Critical Dutton Plastics Engineering Pt
Priority to AU2002222350A priority Critical patent/AU2002222350A1/en
Priority to US10/450,502 priority patent/US20040111793A1/en
Priority to CA002432146A priority patent/CA2432146A1/en
Priority to EP01270663A priority patent/EP1349990A2/en
Publication of WO2002048472A2 publication Critical patent/WO2002048472A2/en
Publication of WO2002048472A3 publication Critical patent/WO2002048472A3/en

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

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)
  • Sanitary Device For Flush Toilet (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)

Abstract

The invention provides a toilet cistern dual flush valve (10) operable selectively in a full flush mode in which a relatively large volume of water is discharged from the cistern or a partial flush mode in which a relatively small volume of water is discharged from the cistern. The dual flush valve (10) comprises a stem (36) carrying a valve closure (38) seatable on an outlet from the cistern, means to raise the stem (70, 72,74), buoyant means (50) attached to the stem (36) which in the full flush mode maintains the stem (36) in the open position until the relatively large volume of water has been discharged and the buoyant means (50) loses buoyancy whereafter the stem (36) descends under gravity to the closed position, and means (54) which operates in the partial flush mode to add sufficient mass to the stem when the relatively small volume of water has been discharged causing the stem (36) to descend to the closed position.
PCT/IB2001/002475 2000-12-15 2001-12-14 Toilet cistern dual flush valve WO2002048472A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2002222350A AU2002222350A1 (en) 2000-12-15 2001-12-14 Toilet cistern dual flush valve
US10/450,502 US20040111793A1 (en) 2000-12-15 2001-12-14 Toilet cistern dual flush valve
CA002432146A CA2432146A1 (en) 2000-12-15 2001-12-14 Toilet cistern dual flush valve
EP01270663A EP1349990A2 (en) 2000-12-15 2001-12-14 Toilet cistern dual flush valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200007544 2000-12-15
ZA2000/7544 2000-12-15

Publications (2)

Publication Number Publication Date
WO2002048472A2 WO2002048472A2 (en) 2002-06-20
WO2002048472A3 true WO2002048472A3 (en) 2002-08-29

Family

ID=25589019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/002475 WO2002048472A2 (en) 2000-12-15 2001-12-14 Toilet cistern dual flush valve

Country Status (5)

Country Link
US (1) US20040111793A1 (en)
EP (1) EP1349990A2 (en)
AU (1) AU2002222350A1 (en)
CA (1) CA2432146A1 (en)
WO (1) WO2002048472A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2432505C (en) 2003-06-17 2005-04-26 Aquanotion Ltd. Dual flushing mechanism
WO2009012226A1 (en) * 2007-07-18 2009-01-22 Fluidmaster, Inc. Flush valve mechanisms
US9657470B1 (en) 2014-12-08 2017-05-23 Bill Butterfield Dual flush toilet flapper valve system
CA2974646C (en) 2016-07-28 2020-06-23 Masco Canada Limited Flushometer valve to outlet tube coupling

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8436155U1 (en) * 1984-12-11 1985-03-21 Pag Presswerk Ag, 4300 Essen OUTLET VALVE FOR TOILET WASHBASIN
EP0955417A2 (en) * 1998-05-06 1999-11-10 GIE ETEX Gestion S.A. Flushing device for a toilet flushing cistern
US6081938A (en) * 1998-09-14 2000-07-04 Fluidmaster, Inc. Dual-flush valve

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2108583A (en) * 1982-11-18 1984-05-24 James Hardie Industries Ltd. Selective-flush cistern
US4486906A (en) * 1983-06-09 1984-12-11 Geberit Manufacturing, Inc. Water-saving flush valve
SE439174B (en) * 1983-10-05 1985-06-03 Bengt Arne Persson FLUSHING DEVICE
DE29517363U1 (en) * 1995-01-16 1995-12-21 Geberit Technik Ag Flushing device in a toilet cistern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8436155U1 (en) * 1984-12-11 1985-03-21 Pag Presswerk Ag, 4300 Essen OUTLET VALVE FOR TOILET WASHBASIN
EP0955417A2 (en) * 1998-05-06 1999-11-10 GIE ETEX Gestion S.A. Flushing device for a toilet flushing cistern
US6081938A (en) * 1998-09-14 2000-07-04 Fluidmaster, Inc. Dual-flush valve

Also Published As

Publication number Publication date
WO2002048472A2 (en) 2002-06-20
CA2432146A1 (en) 2002-06-20
EP1349990A2 (en) 2003-10-08
AU2002222350A1 (en) 2002-06-24
US20040111793A1 (en) 2004-06-17

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