US20030196258A1 - Automatic toilet bowl overflow prevention device - Google Patents
Automatic toilet bowl overflow prevention device Download PDFInfo
- Publication number
- US20030196258A1 US20030196258A1 US10/127,134 US12713402A US2003196258A1 US 20030196258 A1 US20030196258 A1 US 20030196258A1 US 12713402 A US12713402 A US 12713402A US 2003196258 A1 US2003196258 A1 US 2003196258A1
- Authority
- US
- United States
- Prior art keywords
- air
- toilet tank
- water level
- toilet
- flapper
- 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.)
- Abandoned
Links
- 230000002265 prevention Effects 0.000 title claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000013022 venting Methods 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
Definitions
- This invention illustrates a simple apparatus to detect that water level in the toilet bowl has exceeded maximum safe level in the toilet bowl and shutoffs the water to the toilet bowl. Shutting off the water to the toilet bowl at this point prevents the toilet bowl from overflowing. There is no electrical power required to operate this apparatus.
- the apparatus consists of a water level sensor attaches to the rim of the toilet bowl, a hollow flexible tube connecting the water level sensor to an air vented toilet tank flapper.
- an air vented toilet tank flapper is used to demonstrate how the system works. The system will work with an air vented toilet tank ball too.
- the water level sensor will open an air valve to allow air to flow out of the flexible tube attaching to the water level sensor coming from the air vented toilet tank flapper when it trips.
- the water level sensor will close the air valve when it is in the normal not tripped state to prevent air from leaving the flexible tube attaching to the water level sensor.
- the water level sensor uses a float to detect water level in the toilet bowl.
- the air vented toilet tank flapper has an air chamber to maintain a positive buoyancy in order to keep the toilet tank valve open after it has been activated to the open position.
- the air chamber in the air vented toilet tank flapper has two opening. One opening is for the venting of the air and the other is for filling and draining of the water into and out of air chamber.
- the air chamber of the air vented toilet tank flapper is acting like a main ballast of a submarine. Opening the air vent and allowing water to flood the ballast will cause the air vented toilet tank flapper to become negative buoyancy and sink thus closing the toilet tank flush valve. Once the toilet tank flush valve is closed, the water in the air chamber of the air vented toilet tank flapper will drain by itself through gravity.
- the air chamber in the air vented toilet tank flapper is filled with air once the toilet tank flush valve is closed.
- the water level sensor is set where there is still room available inside the toilet bowl to accommodate the refill water coming from the toilet tank refill valve while the refill valve is refilling the toilet tank water.
- FIG. 1 is the side view of a two pieces toilet. It shows the external view of the automatic toilet bowl overflow prevention device attached to the toilet at the preferred location.
- FIG. 2 is the cut away front view of the toilet tank with the air vent tube and air vented toilet tank flapper.
- FIG. 3 is the cut away front view of the toilet bowl with the water level sensor and air vent tube.
- FIG. 4 is the air vented toilet tank flapper with the air vent tube.
- FIG. 5 shows the air vented toilet tank ball with the air vent tube.
- the water level sensor float 17 will be forced up and trips the water level sensor 18 .
- the water level sensor 18 open the air valve to allow air to escape the air vent tube 2 .
- the air vent tube 2 is connected to the air vented toilet tank flapper 8 as shows in FIG. 2. With it's air vent tube 2 open, water enters and floods the air chamber 19 inside the air vented toilet tank flapper 8 . Water displacing air in the air chamber 19 of the air vented toilet tank flapper 8 causes it to become negative buoyancy and sink. When the air vented toilet tank flapper 8 sinks, it closes the toilet tank flush valve 9 . At this point, no more water flowing from the toilet tank flush valve 9 to the toilet tank bowl. Once the toilet tank flush valve 9 is closed, water in the air vented toilet tank flapper 8 will drain and any water that might enter the air vent tube 2 will be drained too.
- a small amount of water will still flow into the toilet bowl 5 in FIG. 1 even after the toilet tank flush valve 9 in FIG. 2 is closed by the tripped water level sensor 18 in FIG. 1. This is the toilet bowl 5 refill water coming from the toilet tank refill valve. The toilet bowl 5 refill water will stop once the toilet tank refill valve shutoffs after the toilet tank refill valve finishes refilling the toilet tank.
- the water level sensor clip 3 in FIG. 3 allows the water level sensor 18 to be moved up or down to set the toilet bowl water level sensor trip point 13 in the toilet bowl 5 . It is preferred that water level sensor be mounted away from the toilet tank and close to the front of the toilet bowl.
- the water level sensor can be made of none metallic material to prevent rusting and reduce cost.
- the water level sensor 18 in FIG. 3 is a water level float valve. However, It can be a float switch also. But using the float switch requires electrical power to control a said solenoid valve to control the opening and closing of the air vent tube 2 .
- the preferred embodiment is a water level float valve.
- the pressure inside the air vent tube 2 is at its peak when the air vented toilet tank flapper 8 in FIG. 2 is first opened. For a ⁇ fraction (3/16) ⁇ inch inside diameter air vent tube 2 , the pressure that the water level float 17 need to over come to open is around 1.6 ounce.
- the air vent tube tank clip 1 in FIG. 1 helps protect the air vent tube 2 from being crushed by the toilet tank cap 7 .
- the air vent tube clip 1 should be made of non metallic material strong enough to prevent the air vent tube 2 from being crushed by the toilet tank cap 7 and any light ornaments that the user put on the toilet tank cap 7 .
- the routing of the air vent tube 2 in FIG. 2 should prevent the air vent tube 2 from interference of other parts inside the toilet tank. Not all of the toilet tank parts like refill valve apparatus or toilet tank flush level are shown in FIG. 2. The reason is to keep the drawing simple to demonstrate the working of the automatic toilet bowl overflow prevention device.
- the clip 12 can be used in routing the air vent tube 2 . There should be no kink in the air vent tube 2 .
- the air vent tube 2 can be made of flexible, soft and strong material like silicon tubing. Rubber tubing like surgical tubing can also be use.
- FIG. 4 and FIG. 5 show the preferred location of the air vent tap 15 . This is the preferred location because when the air vented toilet tank flapper valve 9 is opened, the air space inside the air chamber 19 has its highest air ceiling around this location.
- the air vent tap 15 should always be at the top of the air ceiling inside the air chamber 19 .
- the preferred size of the air vent tap 15 is ⁇ fraction (3/16) ⁇ inches inside diameter.
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)
Abstract
The automatic toilet bowl overflow prevention apparatus comprises of a water level sensor attaches to the rim of the toilet bowl, a hollow flexible tube connecting the water level sensor to an air vented toilet tank flapper. When the water level sensor trips, it opens an air valve and allows air to vent out from the air vented toilet tank flapper. Venting the air out of the air vented toilet tank flapper will close the toilet tank flush valve. Thus shutting off water to the toilet bowl and prevents it from overflowing. This apparatus uses an air vented toilet tank flapper for demonstration. An air vented toilet tank ball will work too. This invention is totally automatic and does not require any electrical power to operate.
Description
- This invention illustrates a simple apparatus to detect that water level in the toilet bowl has exceeded maximum safe level in the toilet bowl and shutoffs the water to the toilet bowl. Shutting off the water to the toilet bowl at this point prevents the toilet bowl from overflowing. There is no electrical power required to operate this apparatus.
- The apparatus consists of a water level sensor attaches to the rim of the toilet bowl, a hollow flexible tube connecting the water level sensor to an air vented toilet tank flapper. In this invention, an air vented toilet tank flapper is used to demonstrate how the system works. The system will work with an air vented toilet tank ball too.
- The water level sensor will open an air valve to allow air to flow out of the flexible tube attaching to the water level sensor coming from the air vented toilet tank flapper when it trips. The water level sensor will close the air valve when it is in the normal not tripped state to prevent air from leaving the flexible tube attaching to the water level sensor. The water level sensor uses a float to detect water level in the toilet bowl.
- The air vented toilet tank flapper has an air chamber to maintain a positive buoyancy in order to keep the toilet tank valve open after it has been activated to the open position. The air chamber in the air vented toilet tank flapper has two opening. One opening is for the venting of the air and the other is for filling and draining of the water into and out of air chamber. The air chamber of the air vented toilet tank flapper is acting like a main ballast of a submarine. Opening the air vent and allowing water to flood the ballast will cause the air vented toilet tank flapper to become negative buoyancy and sink thus closing the toilet tank flush valve. Once the toilet tank flush valve is closed, the water in the air chamber of the air vented toilet tank flapper will drain by itself through gravity. The air chamber in the air vented toilet tank flapper is filled with air once the toilet tank flush valve is closed.
- In normal usage, the water in the toilet bowl is below the trigger point of the water level sensor. In this state, the air vented toilet tank flapper operates like any conventional toilet tank flapper.
- Now, the scenario of an overflow is about to occur. The user flushes the toilet bowl by pulling the toile tank flapper up to open the toilet tank flush valve. Once the toilet tank flush valve is forced open, it will remain open by the positive buoyancy state of the air vented toilet tank flapper. The water level sensor is in the none tripped state and the air vent passage to the air vented toilet tank flapper is closed. Upon detection of water level in the toilet bowl has passed the maximum allowable level in the toilet bowl, the water level sensor trips open and air is allow to vent out of the air vented toilet tank flapper. As water displaces the air inside the air vented toilet tank flapper, it becomes negative buoyancy and sink to close the toilet tank flush valve. Water flowing through the toilet tank flush valve is closed and a toilet bowl overflow is prevented.
- The water level sensor is set where there is still room available inside the toilet bowl to accommodate the refill water coming from the toilet tank refill valve while the refill valve is refilling the toilet tank water.
- This brief summary of the invention demonstrates how the apparatus shutoffs the water to the toilet bowl and prevents the toilet bowl from overflowing.
- The drawings refer below illustrate the prefer embodiment that is intended to illustrate and not to limit the invention.
- FIG. 1 is the side view of a two pieces toilet. It shows the external view of the automatic toilet bowl overflow prevention device attached to the toilet at the preferred location.
- FIG. 2 is the cut away front view of the toilet tank with the air vent tube and air vented toilet tank flapper.
- FIG. 3 is the cut away front view of the toilet bowl with the water level sensor and air vent tube.
- FIG. 4 is the air vented toilet tank flapper with the air vent tube.
- FIG. 5 shows the air vented toilet tank ball with the air vent tube.
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- With reference to FIG. 3, when the water level is at toilet bowl
normal water line 14, thewater level sensor 18 is in the normal off state. Theair vent tube 2 of the air ventedtoilet tank flapper 8 in FIG. 2 is closed. In this state, the air ventedtoilet tank flapper 8 will operate like any conventional toilet tank flapper as shown in FIG. 4 with outair vent tap 15 andair vent tube 2. - Again, with reference to FIG. 3, when the water level is at toilet bowl water level
sensor trip point 13, the waterlevel sensor float 17 will be forced up and trips thewater level sensor 18. In the tripped position, thewater level sensor 18 open the air valve to allow air to escape theair vent tube 2. Theair vent tube 2 is connected to the air ventedtoilet tank flapper 8 as shows in FIG. 2. With it'sair vent tube 2 open, water enters and floods theair chamber 19 inside the air ventedtoilet tank flapper 8. Water displacing air in theair chamber 19 of the air ventedtoilet tank flapper 8 causes it to become negative buoyancy and sink. When the air ventedtoilet tank flapper 8 sinks, it closes the toilet tank flush valve 9. At this point, no more water flowing from the toilet tank flush valve 9 to the toilet tank bowl. Once the toilet tank flush valve 9 is closed, water in the air ventedtoilet tank flapper 8 will drain and any water that might enter theair vent tube 2 will be drained too. - A small amount of water will still flow into the toilet bowl5 in FIG. 1 even after the toilet tank flush valve 9 in FIG. 2 is closed by the tripped
water level sensor 18 in FIG. 1. This is the toilet bowl 5 refill water coming from the toilet tank refill valve. The toilet bowl 5 refill water will stop once the toilet tank refill valve shutoffs after the toilet tank refill valve finishes refilling the toilet tank. - The water level where the toilet bowl water level
sensor trip point 13 in FIG. 3 will accommodate the water from the toilet tank refill valve. When the waste outlet of the toilet bowl 5 is not blocked, the water level in the toilet bowl 5 will never reach the toilet bowl water levelsensor trip point 13. - The water
level sensor clip 3 in FIG. 3 allows thewater level sensor 18 to be moved up or down to set the toilet bowl water levelsensor trip point 13 in the toilet bowl 5. It is preferred that water level sensor be mounted away from the toilet tank and close to the front of the toilet bowl. The water level sensor can be made of none metallic material to prevent rusting and reduce cost. - The
water level sensor 18 in FIG. 3 is a water level float valve. However, It can be a float switch also. But using the float switch requires electrical power to control a said solenoid valve to control the opening and closing of theair vent tube 2. The preferred embodiment is a water level float valve. The pressure inside theair vent tube 2 is at its peak when the air ventedtoilet tank flapper 8 in FIG. 2 is first opened. For a {fraction (3/16)} inch inside diameterair vent tube 2, the pressure that thewater level float 17 need to over come to open is around 1.6 ounce. - The air vent tube tank clip1 in FIG. 1 helps protect the
air vent tube 2 from being crushed by the toilet tank cap 7. The air vent tube clip 1 should be made of non metallic material strong enough to prevent theair vent tube 2 from being crushed by the toilet tank cap 7 and any light ornaments that the user put on the toilet tank cap 7. - The routing of the
air vent tube 2 in FIG. 2 should prevent theair vent tube 2 from interference of other parts inside the toilet tank. Not all of the toilet tank parts like refill valve apparatus or toilet tank flush level are shown in FIG. 2. The reason is to keep the drawing simple to demonstrate the working of the automatic toilet bowl overflow prevention device. The clip 12 can be used in routing theair vent tube 2. There should be no kink in theair vent tube 2. Theair vent tube 2 can be made of flexible, soft and strong material like silicon tubing. Rubber tubing like surgical tubing can also be use. - FIG. 4 and FIG. 5 show the preferred location of the
air vent tap 15. This is the preferred location because when the air vented toilet tank flapper valve 9 is opened, the air space inside theair chamber 19 has its highest air ceiling around this location. Theair vent tap 15 should always be at the top of the air ceiling inside theair chamber 19. The preferred size of theair vent tap 15 is {fraction (3/16)} inches inside diameter.
Claims (1)
1. An automatic toilet bowl overflow prevention device comprising:
a water level float valve comprising a float, an air inlet and an air outlet;
a flexible tube comprising an air inlet port and an air outlet port, said air inlet port of said water level float valve being connected to said air outlet of said flexible tube;
an air vented toilet tank flapper comprising an air chamber, an air vent port, and a water port, said air inlet port of said flexible tube being connected to said air vent port of said air vented toilet tank flapper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/127,134 US20030196258A1 (en) | 2002-04-22 | 2002-04-22 | Automatic toilet bowl overflow prevention device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/127,134 US20030196258A1 (en) | 2002-04-22 | 2002-04-22 | Automatic toilet bowl overflow prevention device |
Publications (1)
Publication Number | Publication Date |
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US20030196258A1 true US20030196258A1 (en) | 2003-10-23 |
Family
ID=29215189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/127,134 Abandoned US20030196258A1 (en) | 2002-04-22 | 2002-04-22 | Automatic toilet bowl overflow prevention device |
Country Status (1)
Country | Link |
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US (1) | US20030196258A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050132483A1 (en) * | 2003-12-18 | 2005-06-23 | Butsch Otto R. | Toilet overflow prevention device |
US20060059612A1 (en) * | 2004-07-13 | 2006-03-23 | Ronald Orcutt | Non-overflow toilet bowl system |
US20060242756A1 (en) * | 2005-04-28 | 2006-11-02 | Fields Michael D | Toilet overflow check system |
US20080141447A1 (en) * | 2006-12-18 | 2008-06-19 | Limit, Inc. | Toilet overflow prevention system and method |
US20080250555A1 (en) * | 2007-04-13 | 2008-10-16 | Edward Gaffey | Toilet overflow prevention system |
WO2013138483A1 (en) * | 2012-03-13 | 2013-09-19 | Masco Corporation Of Indiana | Toilet with overflow protection |
US8941503B1 (en) * | 2012-04-10 | 2015-01-27 | Ted G. Hobson | Water saving alarm for use with a toilet tank |
-
2002
- 2002-04-22 US US10/127,134 patent/US20030196258A1/en not_active Abandoned
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050132483A1 (en) * | 2003-12-18 | 2005-06-23 | Butsch Otto R. | Toilet overflow prevention device |
US20050132482A1 (en) * | 2003-12-18 | 2005-06-23 | Butsch Otto R. | Toilet overflow prevention device |
WO2005064093A1 (en) * | 2003-12-18 | 2005-07-14 | Limit, Inc. | Toilet overflow prevention device |
US6961966B2 (en) | 2003-12-18 | 2005-11-08 | Limit, Inc. | Toilet overflow prevention device |
US7356856B2 (en) | 2003-12-18 | 2008-04-15 | Limit, Inc. | Toilet overflow prevention device |
US20060059612A1 (en) * | 2004-07-13 | 2006-03-23 | Ronald Orcutt | Non-overflow toilet bowl system |
US7302714B2 (en) | 2004-07-13 | 2007-12-04 | Ronald E. Orcutt | Non-overflow toilet bowl system |
US20060242756A1 (en) * | 2005-04-28 | 2006-11-02 | Fields Michael D | Toilet overflow check system |
US7950265B2 (en) | 2006-12-18 | 2011-05-31 | Limit, Inc. | Toilet overflow prevention system and method |
US10190301B2 (en) | 2006-12-18 | 2019-01-29 | Limit, Inc. | Toilet overflow prevention system and method |
US7636959B2 (en) | 2006-12-18 | 2009-12-29 | Limit, Inc. | Toilet overflow prevention system and method |
US20100095447A1 (en) * | 2006-12-18 | 2010-04-22 | Limit, Inc. | Toilet overflow prevention system and method |
US20080141447A1 (en) * | 2006-12-18 | 2008-06-19 | Limit, Inc. | Toilet overflow prevention system and method |
US8370969B2 (en) | 2006-12-18 | 2013-02-12 | Limit, Inc. | Toilet overflow prevention system and method |
US9896831B2 (en) | 2006-12-18 | 2018-02-20 | Limit, Inc. | Toilet overflow prevention system and method |
US9644357B2 (en) | 2006-12-18 | 2017-05-09 | Limit, Inc. | Toilet overflow prevention system and method |
US20080250555A1 (en) * | 2007-04-13 | 2008-10-16 | Edward Gaffey | Toilet overflow prevention system |
CN104185710B (en) * | 2012-03-13 | 2016-04-13 | 德尔塔阀门公司 | There is the toilet of overflow protection |
CN104185710A (en) * | 2012-03-13 | 2014-12-03 | 印地安纳马斯科公司 | Toilet with overflow protection |
US9834918B2 (en) | 2012-03-13 | 2017-12-05 | Delta Faucet Company | Toilet with overflow protection |
WO2013138483A1 (en) * | 2012-03-13 | 2013-09-19 | Masco Corporation Of Indiana | Toilet with overflow protection |
US10221554B2 (en) | 2012-03-13 | 2019-03-05 | Delta Faucet Company | Toilet with overflow protection |
US10995481B2 (en) | 2012-03-13 | 2021-05-04 | Delta Faucet Company | Toilet with overflow protection |
US11746516B2 (en) | 2012-03-13 | 2023-09-05 | Delta Faucet Company | Toilet with overflow protection |
US8941503B1 (en) * | 2012-04-10 | 2015-01-27 | Ted G. Hobson | Water saving alarm for use with a toilet tank |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |