EP0333875A4 - Water closet. - Google Patents

Water closet.

Info

Publication number
EP0333875A4
EP0333875A4 EP19880908335 EP88908335A EP0333875A4 EP 0333875 A4 EP0333875 A4 EP 0333875A4 EP 19880908335 EP19880908335 EP 19880908335 EP 88908335 A EP88908335 A EP 88908335A EP 0333875 A4 EP0333875 A4 EP 0333875A4
Authority
EP
European Patent Office
Prior art keywords
water
air
trap
make
notch
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
Application number
EP19880908335
Other languages
German (de)
French (fr)
Other versions
EP0333875B1 (en
EP0333875A1 (en
Inventor
Yoshio Kai
Toshifumi Yoneda
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.)
Toto Ltd
Original Assignee
Toto Ltd
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 Toto Ltd filed Critical Toto Ltd
Priority to AT88908335T priority Critical patent/ATE84096T1/en
Publication of EP0333875A1 publication Critical patent/EP0333875A1/en
Publication of EP0333875A4 publication Critical patent/EP0333875A4/en
Application granted granted Critical
Publication of EP0333875B1 publication Critical patent/EP0333875B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
    • 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
    • E03D1/24—Low-level flushing systems
    • E03D1/28—Bowl integral with the flushing cistern
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/18—Siphons

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)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Liquid Crystal Substances (AREA)
  • Toilet Supplies (AREA)

Abstract

The water closet has a drainage port in a position higher than the floor. During a flushing operation, an air vent space is partitioned by a water wall formed by a water flux dropping from a dam and by an increase of the water level in a reservoir. The air in a trap is pushed out speedily toward the drainage port, due to the rapid flow of water to make vacuous the interior of a trap's drainage passage, and make it ready to start a siphoning action. When the feeding of water from a tank has been completed, so that the continuous siphoning action approaches the end, a notch is formed in the water wall. This notch permits the air to enter the air vent space immediately.
EP88908335A 1987-09-16 1988-09-16 Water closet Expired - Lifetime EP0333875B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88908335T ATE84096T1 (en) 1987-09-16 1988-09-16 TOILET.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62233445A JPS6475741A (en) 1987-09-16 1987-09-16 Water closet
JP233445/87 1987-09-16

Publications (3)

Publication Number Publication Date
EP0333875A1 EP0333875A1 (en) 1989-09-27
EP0333875A4 true EP0333875A4 (en) 1990-02-22
EP0333875B1 EP0333875B1 (en) 1992-12-30

Family

ID=16955154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88908335A Expired - Lifetime EP0333875B1 (en) 1987-09-16 1988-09-16 Water closet

Country Status (7)

Country Link
EP (1) EP0333875B1 (en)
JP (1) JPS6475741A (en)
KR (1) KR950002128B1 (en)
AT (1) ATE84096T1 (en)
DE (1) DE3877183T2 (en)
HK (1) HK71095A (en)
WO (1) WO1989002501A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50010169D1 (en) * 1999-05-04 2005-06-02 Geberit Technik Ag WATER-SAVING TOILET SYSTEM
JP4793614B2 (en) * 2001-08-06 2011-10-12 Ｔｏｔｏ株式会社 Floor drain siphon flush toilet
KR100588522B1 (en) * 2004-02-19 2006-06-14 동서산업주식회사 Closet with drain water tank in a body
CN103306355B (en) * 2013-06-27 2015-07-08 佛山市博尔通节能洁具有限公司 Water-tank-free water-saving straightly -draining closestool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR808085A (en) * 1936-07-10 1937-01-28 Advanced training in water closets
GB507908A (en) * 1937-12-18 1939-06-19 Associated Clay Ind Ltd Improvements in or relating to water closet suites

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1099707A (en) * 1965-11-11 1968-01-17 John Steventon And Sons Ltd Double trap siphonic water closet
JPS5812953Y2 (en) * 1979-06-27 1983-03-12 株式会社イナックス flush toilet
JPS58115587U (en) * 1982-01-28 1983-08-06 株式会社イナックス flush toilet
JPS6221180U (en) * 1985-07-19 1987-02-07

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR808085A (en) * 1936-07-10 1937-01-28 Advanced training in water closets
GB507908A (en) * 1937-12-18 1939-06-19 Associated Clay Ind Ltd Improvements in or relating to water closet suites

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8902501A1 *

Also Published As

Publication number Publication date
JPS6475741A (en) 1989-03-22
DE3877183T2 (en) 1993-05-19
EP0333875B1 (en) 1992-12-30
DE3877183D1 (en) 1993-02-11
WO1989002501A1 (en) 1989-03-23
KR890701851A (en) 1989-12-22
KR950002128B1 (en) 1995-03-13
HK71095A (en) 1995-05-19
JPH0375695B2 (en) 1991-12-03
ATE84096T1 (en) 1993-01-15
EP0333875A1 (en) 1989-09-27

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