WO2013126992A1 - Système d'élimination d'odeurs de toilettes - Google Patents

Système d'élimination d'odeurs de toilettes Download PDF

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Publication number
WO2013126992A1
WO2013126992A1 PCT/CA2013/000180 CA2013000180W WO2013126992A1 WO 2013126992 A1 WO2013126992 A1 WO 2013126992A1 CA 2013000180 W CA2013000180 W CA 2013000180W WO 2013126992 A1 WO2013126992 A1 WO 2013126992A1
Authority
WO
WIPO (PCT)
Prior art keywords
toilet
toilet seat
suction device
odor removal
removal system
Prior art date
Application number
PCT/CA2013/000180
Other languages
English (en)
Inventor
Roy A. PRETE
Miles J. DETLOR
Original Assignee
Prete Roy A
Detlor Miles J
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 Prete Roy A, Detlor Miles J filed Critical Prete Roy A
Publication of WO2013126992A1 publication Critical patent/WO2013126992A1/fr

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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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K13/00—Seats or covers for all kinds of closets
    • A47K13/24—Parts or details not covered in, or of interest apart from, groups A47K13/02 - A47K13/22, e.g. devices imparting a swinging or vibrating motion to the seats
    • A47K13/30—Seats having provisions for heating, deodorising or the like, e.g. ventilating, noise-damping or cleaning devices
    • A47K13/307—Seats with ventilating devices

Definitions

  • the present invention relates to odor removal systems. More specifically, the present invention relates to an odor removal system for use with toilets.
  • Toilet odors can be an unpleasant and embarrassing problem.
  • Numerous solutions have been proposed to solve toilet odor problems, such as ceiling fans (which are inefficient because they evacuate not only the odorous air, but also the surrounding ambient air in the bathroom) and, more recently, toilets that evacuate malodorous air into the toilet sewer line.
  • a toilet odor removal system comprising an intake conduit with a proximal end and a distal end, the proximal end configured to connect to a toilet bowl, and the distal end configured to connect to a suction device.
  • the suction device has a power source, and may be connected to the proximal end of an exhaust conduit, with the distal end of the exhaust conduit being configured to connect to a sink drain.
  • the distal end of the exhaust conduit may be connected to a portion of sink drain pipe.
  • the exhaust conduit may further comprise a check valve to prevent air from the sink drain from escaping back through the conduit.
  • the toilet odor removal system may comprise a toilet bowl, the toilet bowl comprising a toilet bowl rim; an intake conduit disposed between the toilet bowl rim and the toilet seat, the intake conduit comprising a proximal end and a distal end; a suction device connected to the distal end of the intake conduit; a power source connected to the suction device; and an exhaust conduit comprising a proximal end connected to the suction device and a distal end for connection to a sink drain.
  • the toilet seat may have an upper surface and a lower surface, and the intake conduit may be attached to the lower surface of the toilet seat.
  • the intake conduit may be formed integral to the lower surface of the toilet seat.
  • the odor removal system may further comprise a toilet seat lid with a sensor thereon for detecting when a person is sitting on the toilet seat.
  • the sensor may be disposed in communication with the suction device, such that the suction device turns on when the sensor senses a person sitting on the toilet seat.
  • the sensor device may be, for example, a pressure sensor.
  • kits for removing toilet odors from an environment comprising, (a) an intake conduit for attachment to a toilet, (b) a suction device disposed in connection to the intake conduit, and (c) an exhaust conduit disposed in connection to the suction device, the exhaust conduit configured for attachment to a sink trap.
  • the exhaust conduit may also be provided with a one-way check valve.
  • the kit may also include, for example, a power supply attached to the suction device. It may include a portion of sink drain connected to the exhaust conduit.
  • the kit may include a toilet seat, with the intake conduit attached to the toilet seat or formed integrally to the toilet seat.
  • the kit may also include a toilet seat lid, the toilet seat lid having a sensor thereon for detecting when a person is sitting on the toilet seat.
  • the sensor may be disposed in communication with the suction device, such that the suction device turns on when the sensor senses a person sitting on the toilet seat.
  • the kit may also include a sub-toilet seat.
  • a toilet odor removal system comprising (a) an air intake conduit in the toilet bowl; and (b) an air exhaust conduit connected to a sink drain.
  • FIG. 1 shows a partial cut-away isometric view of a toilet equipped with the toilet odor removal system described herein;
  • FIG. 2 shows a partial cut-away isometric view of a toilet equipped with another configuration of the toilet odor removal system described herein;
  • FIG. 3 shows a partial cut-away isometric view of a toilet equipped with yet another configuration of the toilet odor removal system described herein;
  • FIG. 4 shows a side view of a toilet seat and toilet bowl according to one configuration
  • FIG. 5 shows a bottom-view of a toilet seat according to one configuration.
  • the toilet odor removal system described herein removes foul odors from a toilet while it is being used and discharges the odors into a standard sink drain pipe, thus preventing the odors from escaping into the ambient environment surrounding the toilet. In this way, the toilet odor removal system removes a substantial amount of odor, thereby keeping a bathroom odor- free or nearly odor-free.
  • the present invention surprising does not disrupt the ability of a sink to drain. Moreover, the systems disclosed and claimed herein also do not result in malodorous air backing up through the sink as a result of air being input into the sink line. Thus, it has been found that the sink system as a means of discharging malodorous air into the sewer is surprising more effective system. An unexpected result is that exhausting air into the sink system does not in any way negatively impact the operation of the sink.
  • the toilet odor removal system is shown in the attached figures.
  • the system generally comprises three components: an air intake conduit for drawing in air from within a toilet bowl, a fan or vacuum pump to provide the suction for the air intake, and a discharge conduit for discharging the withdrawn air away from the bathroom environment.
  • FIG. 1 shows a toilet that uses a configuration of the odor system removal described herein.
  • a toilet is generally indicated at 20, with a toilet seat lid 23, a toilet seat 27, a toilet bowl 31 with a bowl rim 34, and a toilet base 38. Between the toilet bowl rim 34 and the toilet set 27, there is disposed the proximal end 40a of an intake conduit 40.
  • the intake conduit 40 may be any type of open conduit configured for channeling or conducting air from the toilet bowl 31.
  • the intake conduit 40 is a rubber tube or hose, but it may alternatively comprise a metal pipe, or a plastic tube or pipe (such as PVC), or another other known suitable material.
  • the intake conduit proximal end 40a may also be integrated into the toilet seat 27, as shown in FIG. 5 below.
  • the systems discharge air at very low pressure.
  • the size of the sink drain pipe is sufficiently small that discharging the malodorous air that the pressure increase is very slight and does not affect the operation of the sink system.
  • the size of the sink exhaust pipe is from approximately 1 inch (2.54 cm) to 2 inches (5.08 cm).
  • the size of the sink exhaust pipe is the size of a standard sink drain, i.e., 1.25 inches (3.175 cm), or alternative
  • the intake conduit has a terminal intake end, or proximal end, 40a located in, or near, the toilet bowl.
  • the proximal end 40a of the intake conduit 40 is open to the air of the toilet bowl
  • the proximal end 40a is disposed above the rim 34 of the toilet bowl. This configuration ensures that any overflow from the toilet will not enter the intake conduit 40. It may also be desirable to place the proximal end 40a such that it does not protrude past the interior rim of the toilet seat 27 to prevent soiling or contamination of the intake conduit 40. Other configurations may be used to prevent soiling or contamination of the intake conduit 40a, as described below.
  • the intake tube in the drawing is affixed under the back of the toilet seat and is to be integrated with the toilet seat (not shown) so that only the intake, which may be a flattened tube, is visible. Tests have shown that it works an intake in a single location works efficiently, as it creates a negative pressure and draws the air in from under all parts of the toilet seat around the entire bowl in the space between the supports of the toilet seat and the toilet bowl, as indicated in the drawing. Another major reason for putting the intake in the toilet seat is that the retrofit package requires only the replacement of the toilet seat with the removal of two bolts.
  • gauge and positioning of those bolts is standard in nearly all toilets so that a retrofit toilet seat can be readily marketed to many customers.
  • the intake end of the conduit 40a attaches to the bottom of the toilet seat 27, such that the intake end 40a does not protrude past the interior rim of the toilet seat 27. This prevents the intake end 40a of the conduit from being contaminated while the toilet is in use.
  • the intake end 40a of the conduit may terminate at any point along the bottom surface of the toilet seat between the interior rim and the exterior rim of the toilet seat 27.
  • the intake end of the conduit may also beveled such that the edge of the conduit in contact with toilet seat 27 is longer than the edge directly opposite. This also prevents water and other fluids and solid matters from entering into the conduit.
  • the intake conduit 40a is also configured to be located above the toilet rim, or at least the overflow conduit, in order to prevent water from entering the intake conduit 40a.
  • the intake end of the conduit 40a may also be formed integrally with the toilet seat.
  • the intake conduit 40 extends from the toilet seat to a suction device 45.
  • the distal end 40b of the intake conduit is operably connected to a suction device 45.
  • the suction device 45 may be any type known in the art, for example, a vacuum pump or fan, or other motor for creating suction.
  • the suction device sucks air from the toilet bowl 31 through the intake conduit 40, and then passes the air into the exhaust conduit 50, which is also operably connected to the suction device 45.
  • the term "operably connected" means that air is able to flow through the intake conduct, suction device and exhaust conduct.
  • the suction device 45 can be quite small, as it only is required to exhaust between 1.5 and 2 cubic feet of air per minute for a standard toilet seat.
  • An oblong or open-front toilet may require additional air evacuation, and can be equipped as described below and shown in FIG. 4.
  • the suction device 45 can be hidden, if desired for aesthetics, under the toilet by attaching it to one of the toilet seat bolts and the bolt that attaches the toilet bowl to the toilet. Alternately, it could be hidden inside the sink cabinet.
  • the suction device 45 is powered by a power supply 47.
  • the power supply 47 may be any means known to those of skill in the art, such as alternating current from a home or wall outlet, direct current from one or more batteries, or solar power. If the suction device 45 is to be powered from the house power, it may be desirable to use a transformer to reduce it to 12 volts (or a similar low voltage system), so that it does not present the hazard of an electrical shock.
  • the suction device 45 will function in a humid and sometimes moist environment, depending on the condensation on the toilet in hot weather, so it is important that it does not present a risk of electrical shock.
  • the vacuum pump is required to exhaust only a small amount of air, comparatively speaking, an alternate method to power it would by rechargeable battery; or by a combination of a battery and light-sensitive electric-generating panel or panels.
  • the power source is a battery or battery pack, 45' in FIG. 2, to prevent any possible contact of water with a high-voltage power source from an alternating current.
  • the power source is 24 volts or less, because power sources less than 24 volts are generally not regulated.
  • the power source is 12 volts, which provides sufficient power for the suction device 45.
  • the suction device 45 does not need to have a large suction capacity.
  • the suction device 45 is configured to draw in all of the air from the toilet bowl to remove the odors. This comprises from approximately one (1) to approximately two (2) cubic feet of air per minute, and , in some instances, the suction device draws approximately one-and- one-half (1.5) cubic feet of air per minute for a standard toilet seat. Other types of toilet seats may require more suction.
  • the suction device 45 may be turned on or activated by any method know to those with skill in the art.
  • a switch 49 is provided.
  • the suction device and odor removal system may be activated by automatic means, which may be useful if guests or others are to use the toilet and do not have knowledge of the odor removal system.
  • the automatic means may also prevent lapses in the toilet odor removal system.
  • the toilet seat is equipped with a pressure actuated switch 71, disposed in communication with the suction device 45'.
  • Other means known in the art for automatically activating the suction device may be used, such as a proximity sensor (described below) that detects the presence of a user when they are sitting on the toilet.
  • the suction device is connected to the proximal end 50a of an exhaust conduit 50.
  • the exhaust conduit connects to the suction device to provide a conduit to discharge and direct the malodorous air away from the ambient environment.
  • the exhaust conduit 50 has a terminal or distal end 50b that connects to a sink drain 57.
  • the exhaust conduct 50 may be any suitable flexible or rigid tubing known in the art.
  • the exhaust conduit 50 is comprised of flexible tubing.
  • the exhaust conduit 50 is also be equipped with a check valve 54 to prevent backflow of sewer gas, and, in the case of stoppage of the sink system, water in the sink drain from passing back up through the exhaust conduit.
  • the check valve 54 is a one-way valve to prevent any odors or backflow of air in the sink drain line from re-entering the toilet bowl 31.
  • the check valve 54 may be placed along any portion of the exhaust conduit 50. As shown in FIG. 1, air may flow in the direction of the arrow 56, but not back into the toilet bowl 31.
  • the check valve 54 may be integrated into a portion of sink drain pipe, or in the exhaust conduit 50. In one configuration, the exhaust stream is low pressure and low volume, and there is a large differential capacity between the exhaust conduit 50 and the sink drain pipe; thus, there is no significant back pressure to impede the operation of the sink p- trap.
  • the exhaust conduit terminal end 50b connects to the sink drain 57 at a point after, or below, the sink trap 61 , for the sink the bathroom.
  • Most household sinks are equipped with a p-trap. Due to the shape of the trap, the trap retains a small amount of water after the sink has been used. This water in the trap creates a seal that prevents sewer gases from passing from the drain pipes back up into the occupied space of the building.
  • the p-trap in the sink drain prevents the foul air discharged by the odor removal device from escaping back through the sink drain into the ambient environment of the bathroom. As shown by arrow 65, the waste from the sink drain 57 and the air discharged by the odor removal system are evacuated to the sink sewer.
  • the distal end of the exhaust conduit 50b connects to the sink drain
  • the distal end of the exhaust conduit 50b may fit into the sink drain 57 at any angle, but in some embodiments is at an angle that propels the exhaust air in the same direction as the flow of water in the sink drain.
  • the exhaust conduit 50b is fit into the sink drain 57 at or near the top portion of the sink drain pipe, so that water from the sink does not drain into the exhaust conduit. In other embodiments, the exhaust conduit 50b is fit into the sink drain 57 at a vertical or downward sloping angle relative to the sink drain pipe, also so that water from the sink does not drain into the exhaust conduit.
  • FIG. 3 there is shown a toilet odor removal device in yet another configuration that utilizes a proximity sensor 75.
  • a sensor wire 78 is attached to the sensor 75 and the suction device 45, to allow the proximity sensor 75 to communicate with the suction device 45.
  • the sensor 75 is triggered, activating the suction device 45, which then turns on to evacuate air from the toilet bowl 31 for as long as the person is on the toilet.
  • the proximity sensor 75 turns off the suction device 45.
  • This proximity sensor 75 similar to the sensor on an automatic sink tap, is intended to have a range of about 12.7 centimeters (about 5 inches), or sufficient to detect the presence of an individual sitting on the toilet. It may be desirable to have the range sufficiently limited so that the system will not come on when the lid is closed, as the distance between the lid and the water in the toilet bowl is greater than the range of the proximity sensor.
  • the toilet seat comprises two separate toilet seats of different sizes, as shown in FIG. 3.
  • the first seat 27 is generally of a standard size. Most adults, when sitting on a standard size seat, create a seal such that air entering into the toilet bowl from above the seat is restricted. Instead, when the suction device is operating, it creates negative pressure within the toilet bowl, drawing air from within the toilet bowl, and the air in the toilet bowl is replaced by air from the room entering the toilet bowl through the small gap between the bottom of the toilet seat and the top of the toilet bowl rim. This flow of air prevents the escape of the malodorous air into the room.
  • the toilet sub-seat 27' is designed for use by smaller persons, such as children.
  • the sub- seat 27' may be on the same hinge as the toilet seat 27 and the toilet seat lid 26.
  • the sub-seat 27' offers a solution for the problems that arise when a smaller person utilizes the odor removal system.
  • One problem may be that the smaller person does not fill the space of the toilet seat, and thus substantial quantities of air will escape into the room.
  • a second problem may be that the distance between the smaller person and the proximity sensor 75 may be too great and the sensor will not turn on the suction device 45.
  • the gap through which malodorous air can escape will be closed, and the smaller person will also be placed farther back into range of the proximity sensor 75 so that the suction device 45 will turn on.
  • FIG. 4 shows a side view of another possible configuration of the toilet odor removal system for use with oblong toilet seats, or toilet seats with the front portion open (which are common in public restrooms).
  • the person sitting on the seat nearly encloses the seat area so air intake is mainly under the seat, in the gap between the seat and the toilet bowl.
  • the toilet seats that are oblong or have the front portion open there is more open space. In order to evacuate enough air for the odor system to be efficient, some of the open space may be eliminated.
  • FIG. 4 One method of compensating for this additional open space is shown in FIG. 4, by including a toilet seat liner 81 to eliminate, or substantially eliminate, the gap between the toilet seat 27" and the toilet bowl rim 34.
  • a toilet seat liner 81 Any suitable material known in the art may be used for the liner 81, such as rubber, gasket material, and the like. The material may be attached to the bottom of the toilet seat 27" for easy installation by the consumer, or the material may be otherwise provided in a kit.
  • the toilet seat liner 81 may extend fully around the lower portion of the toilet seat lid, but should not cover the intake conduit.
  • FIG. 5 shows another configuration for the proximal end of the intake conduit, 40a.
  • the proximal end 40a of the intake conduit is formed integrally with the bottom of the toilet seat 27, and may be flush with the surface of the bottom of the toilet seat.
  • This configuration allows a user to replace their existing toilet seat with a new toilet seat, without having to connect, install, or attach the intake conduit to the toilet seat.
  • the proximal end 40a of the intake conduit may be exposed to contamination from urine and the like.
  • angled slats 85 are provided over the proximal end 40a of the intake conduit.
  • the angled slats 85 may be angled to admit air intake, but keep out unwanted urine contamination when the toilet seat 27 is in the upright position.
  • the odor removal device may be sold as a kit, including a toilet seat replacement unit containing the air intake and proximity sensor, and smaller sub-seat if desired, the power supply, the suction device, and the sink drain elbow connected to the exhaust conduit, all as part of the odor removal device.
  • the odor removal device may be a retrofit kit to be installed on existing toilets.
  • the present odor removal system does not require the construction of a new toilet.
  • the kit may simply include a connecting seal for inserting the end of the exhaust conduit into a hole drilled into an existing sink drain line or elbow.
  • the connecting seal may be a rubber seal that surrounds the end of the exhaust conduct and is sized to be force fitted into a drilled hole in the sink drain line or elbow.
  • This retrofit system is designed so that it can be sold at a relatively low cost, and so that its installation is non-invasive and easily accomplished. All that is required is to replace the toilet seat with a new toilet seat with an air intake conduit 40a in the seat 27 and a sensor 75 in the lid 23, which requires the replacement of two bolts.
  • the suction device 45 may be attached to the toilet using one of the toilet seat bolts and the bolt holding the tank to the toilet, or, in another configuration, the suction device 45 could go inside the sink cabinet.
  • the next step is to replace the small pipe in the sink behind the p-trap, which has two turnbuckles, with the odor input fixture.
  • the tubing may be covered with a cosmetic covering so that it will not detract from the decor of the bathroom.
  • This novel toilet odor removal system allows individuals to easily install the device on existing toilets, and conveniently remove foul and offensive odors before they escape into the bathroom. It also conveniently discharges the foul air into the sewer through the sink drain in the bathroom near the toilet. As such, it is easy to install with standard plumbing tools.

Abstract

L'invention concerne un système d'élimination d'odeurs de toilettes, selon lequel l'air malodorant émanant de la cuvette des toilettes est évacué par aspiration à travers un tube jusque dans le système de drainage de lavabo. Le système peut être utilisé pour la construction de nouvelles toilettes, ou peut être facilement adapté à la vente sous la forme d'un kit pour équiper a posteriori des toilettes existantes. Un tube d'admission peut être situé sous le siège des toilettes, en association avec un dispositif d'aspiration. Le dispositif d'aspiration peut être couplé à un tube d'évacuation qui se connecte au système de drainage de lavabo au-dessous du siphon du lavabo. Le tube d'évacuation peut également avoir un clapet anti-retour destiné à empêcher que des odeurs émanant du système d'égout ne s'échappe dans l'air ambiant de la salle de bains. Le système d'élimination des odeurs peut également disposer d'un moyen automatique de mise en marche, tel qu'un capteur ou un commutateur activable par pression.
PCT/CA2013/000180 2012-02-28 2013-02-28 Système d'élimination d'odeurs de toilettes WO2013126992A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201261604273P 2012-02-28 2012-02-28
US61/604,273 2012-02-28
US13/778,828 US20130263366A1 (en) 2012-02-28 2013-02-27 Toilet odor removal system
US13/778,828 2013-02-27

Publications (1)

Publication Number Publication Date
WO2013126992A1 true WO2013126992A1 (fr) 2013-09-06

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PCT/CA2013/000180 WO2013126992A1 (fr) 2012-02-28 2013-02-28 Système d'élimination d'odeurs de toilettes

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US (1) US20130263366A1 (fr)
WO (1) WO2013126992A1 (fr)

Cited By (2)

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EP3085840A3 (fr) * 2015-04-22 2017-01-18 Duravit Aktiengesellschaft Toilette avec chasse d'eau et amenée d'un gas germicide
WO2023215968A1 (fr) * 2022-05-11 2023-11-16 Jordan Wilson Système universel d'élimination des odeurs de toilettes

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US9603496B1 (en) * 2013-03-15 2017-03-28 David C. Hartman Toilet seat assembly
US9512604B1 (en) * 2014-08-07 2016-12-06 Richard Allen Hunter System and method of use for removing waste odor proximate a toilet
WO2016189517A1 (fr) * 2015-05-28 2016-12-01 Bou Ajram Razane Nazih Mécanisme d'aspiration pour toilettes
US20180016779A1 (en) * 2016-07-13 2018-01-18 Kenneth R. Courson Odor eliminator for toilet
CN111395477A (zh) * 2020-04-28 2020-07-10 傅开辉 坐式抽水马桶除味套件
US11661730B2 (en) * 2020-05-24 2023-05-30 Daisy S. Yau Environmentally-friendly hot water delivery system
IT202000003691U1 (it) * 2020-06-25 2020-09-25 Ibg Srl Wc perfezionato provvisto di aspiratore
US20220081888A1 (en) * 2020-09-17 2022-03-17 John Marion Air odor removal system with sewage plumbing attachment
US11486127B1 (en) * 2021-11-22 2022-11-01 Shahrooz S. Jamie Toilet ventilation system

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US20080222784A1 (en) * 2007-01-29 2008-09-18 Derrick Ware Tankless ventilated toilet with bidet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3085840A3 (fr) * 2015-04-22 2017-01-18 Duravit Aktiengesellschaft Toilette avec chasse d'eau et amenée d'un gas germicide
WO2023215968A1 (fr) * 2022-05-11 2023-11-16 Jordan Wilson Système universel d'élimination des odeurs de toilettes

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