EP1041205A2 - Toilettes - Google Patents

Toilettes Download PDF

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Publication number
EP1041205A2
EP1041205A2 EP20000302410 EP00302410A EP1041205A2 EP 1041205 A2 EP1041205 A2 EP 1041205A2 EP 20000302410 EP20000302410 EP 20000302410 EP 00302410 A EP00302410 A EP 00302410A EP 1041205 A2 EP1041205 A2 EP 1041205A2
Authority
EP
European Patent Office
Prior art keywords
pan
lavatory
duct
flushing
air
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Withdrawn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
EP20000302410
Other languages
German (de)
English (en)
Inventor
George William Worrell
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 claimed from GBGB9907028.6A external-priority patent/GB9907028D0/en
Priority claimed from GBGB9910051.3A external-priority patent/GB9910051D0/en
Application filed by Individual filed Critical Individual
Publication of EP1041205A2 publication Critical patent/EP1041205A2/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Withdrawn legal-status Critical Current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
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/04—Special arrangement or operation of ventilating devices
    • E03D9/05—Special arrangement or operation of ventilating devices ventilating the bowl

Definitions

  • This invention relates to lavatories, and is concerned in particular with reducing unpleasant odours associated with lavatory use.
  • a lavatory-pan installation wherein a duct opens from the conduit by which flushing-water is supplied to the lavatory pan, and extractor means is coupled to the duct for drawing off air from within the pan via the conduit.
  • the present invention provides for air to be drawn off directly from within the pan, the immediate source of odour, so as to reduce the extent to which the ambient atmosphere within the lavatory enclosure becomes fouled. Withdrawing air from the pan has been found to be more effective in reducing unpleasantness than seeking to change the air within the lavatory enclosure as a whole.
  • the extractor means for drawing off air from the pan may involve an electrically-operated air-pump coupled to the duct; in normal circumstances, in which water for flushing the pan is supplied from a cistern, the pump is desirably located above the water-level in the cistern. Operation of the pump may be controlled automatically in dependence upon use of the lavatory, and in this regard may be operated to draw air from the pan throughout a period that begins no later than when the lavatory seat is occupied and extends at least until it is vacated.
  • the air-pump may be operated to run in response to occupation of the seat, detected, for example, by loading of the seat or lifting of a lid that covers the seat, and to continue to run at least until loading of the seat is discontinued or the lid closed.
  • the air-pump may be operated throughout a period that begins with manual actuation of a switch and ends with initiation of flushing of the pan.
  • the air drawn off may be deodorised before discharge, by being passed through a filter (for example of charcoal), an ioniser, a steriliser and/or an air freshener. Discharge may be into the ambient atmosphere after deodorisation, or, whether deodorised or not, may be into the external atmosphere.
  • a filter for example of charcoal
  • ioniser for example of charcoal
  • steriliser for example of steriliser
  • air freshener an air freshener
  • coupling of the cistern to the pan may include a device which has a passage therethrough to define part of the flushing-water conduit, and in these circumstances said duct may open from around the conduit within this passage.
  • the coupling device in this case may be of a flat, ring-configuration with a central cylindrical passage therethrough to define said part of the conduit, and this passage may have manifold openings into a surrounding gallery of the device, forming said duct.
  • said duct may be coupled into the down-pipe by which flushing-water is supplied to the pan.
  • the duct may be coupled into the pipe by means of a T-junction.
  • said duct may be formed as part of the body of the pan such as to open from the flushing-water conduit within the body of the pan itself.
  • the duct can be used for drawing off air from within the pan without the need to modify or break into the normally-used coupling between cistern and pan.
  • the lavatory pan 1 is supplied with water for flushing from a close-coupled cistern 2.
  • the conduit 3 by which the water passes from the cistern 2 into the flushing-rim (not shown) of the pan 1 includes a coupling device 4 that is illustrated in greater detail in Figures 2 and 3.
  • the device 4 is of a flat ring-configuration having a central cylindrical passage 5 with manifold openings around its inside into a surrounding gallery that forms a duct 6 leading to an outlet tube 7.
  • the device 4 is located between the close-coupled cistern 2 and the pan 1 with sealing rings 8 and 9 top and bottom, and with the passage 5 axially aligned with a water-outlet 10 of the cistern 2 and a water-inlet 11 of the pan 1.
  • the device 4 is inserted between the cistern 2 and pan 1 as part of the conduit 3 by which water is supplied to the pan 1 for flushing.
  • the duct 6 opening from the conduit 3 and leading into the tube 7, enables air to be drawn off from within the pan 1.
  • the tube 7 is extended via a pipe 12 to an electric air-pump 13 that is located above the cistern water-level.
  • the pump 13 is vented through the lavatory-wall (not shown) so that foul air drawn from the pan 1 by the pump 13, is discharged into the outside atmosphere.
  • the pump 13 is energised to draw air from the pan 1 when the lavatory is in use.
  • the pump 13 is energised from an electric circuit (not shown) that includes an electric switch which closes when a lid 14 of the pan 1 is lifted and the underlying seat 15 is occupied.
  • the pump 13 is operated for a period that begins with occupation of the seat 15 and ends when it is vacated just prior to operation of the cistern 2 to flush the pan 1. Accordingly, water is not drawn into the duct 6, and any that enters readily drains back into the conduit 3 immediately when flushing is completed.
  • the pump 13 may be brought into operation by the user actuating a manually-operable or movement-sensitive switch (not shown), and stopped when the water level in the cistern 2 begins to fall as flushing is initiated.
  • the switch may be coupled to the flushing handle 16 ( Figure 1) so that it is switched on to energise the pump 13 when the handle 16 is pushed inwardly ⁇ in contrast to downwardly for flushing ⁇ against a spring (not shown).
  • the pump 13 continues to be energised so as to run until the water level in the cistern 2 begins to fall as detected by one or more reed switches (not shown), when the handle 16 is pushed downwardly for flushing purposes.
  • the duct for drawing off air from within the lavatory pan may be incorporated within the body of the pan as manufactured.
  • a lavatory pan incorporating such a duct is illustrated in Figure 4 and will now be described.
  • the lavatory pan in this case is conventional except that an air-withdrawal duct 20 is formed within the pan-body 21 to open from the flushing-water conduit 22 within the body 21.
  • a pipe (not shown) is coupled to the duct 20 when the pan is installed, and taken up to the air-pump (not shown) for drawing the air off.
  • FIG. 5 illustrates a further lavatory-pan installation.
  • a conventional pan 31 is supplied with flushing water via a down-pipe 32 from a low- or high-level cistern (not shown). Air is withdrawn from the pan 31 in this case via a pipe 33 which is coupled into the pipe 32 by a T-junction 34.
  • An air pump (not shown), which like the pump 13 is located above the cistern-water level, is coupled to the pipe 33 to draw air up the pipe 32 from the pan 31 and thence into the pipe 33 at the junction 34.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Sanitary Device For Flush Toilet (AREA)
EP20000302410 1999-03-27 2000-03-24 Toilettes Withdrawn EP1041205A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9907028.6A GB9907028D0 (en) 1999-03-27 1999-03-27 Lavatories
GB9907028 1999-03-27
GBGB9910051.3A GB9910051D0 (en) 1999-05-01 1999-05-01 Lavatories
GB9910051 1999-05-01

Publications (1)

Publication Number Publication Date
EP1041205A2 true EP1041205A2 (fr) 2000-10-04

Family

ID=26315341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000302410 Withdrawn EP1041205A2 (fr) 1999-03-27 2000-03-24 Toilettes

Country Status (2)

Country Link
EP (1) EP1041205A2 (fr)
GB (1) GB0007274D0 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG120871A1 (en) * 2002-06-17 2006-04-26 Tan Choon Wang Odourless system
EP2239380A3 (fr) * 2009-04-10 2012-10-31 Havilah Holdings (Thunder Bay) Corp. Toilettes ventilées
US8505123B2 (en) 2009-04-10 2013-08-13 Havilah Holdings (Thunder Bay) Corp. Ventilated toilet
GB2552752A (en) * 2012-03-01 2018-02-07 Phoenix Product Development Ltd Components for and methods of manufacturing toilet pan bodies and systems
US10612223B2 (en) 2012-03-01 2020-04-07 Phoenix Products Development Limited Toilet pan body and its method for manufacturing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG120871A1 (en) * 2002-06-17 2006-04-26 Tan Choon Wang Odourless system
EP2239380A3 (fr) * 2009-04-10 2012-10-31 Havilah Holdings (Thunder Bay) Corp. Toilettes ventilées
US8505123B2 (en) 2009-04-10 2013-08-13 Havilah Holdings (Thunder Bay) Corp. Ventilated toilet
GB2552752A (en) * 2012-03-01 2018-02-07 Phoenix Product Development Ltd Components for and methods of manufacturing toilet pan bodies and systems
GB2552752B (en) * 2012-03-01 2018-03-21 Phoenix Product Development Ltd Cistern bodies for toilet systems
US10612223B2 (en) 2012-03-01 2020-04-07 Phoenix Products Development Limited Toilet pan body and its method for manufacturing

Also Published As

Publication number Publication date
GB0007274D0 (en) 2000-05-17

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