WO2008070837A2 - Abattant de wc a del - Google Patents

Abattant de wc a del Download PDF

Info

Publication number
WO2008070837A2
WO2008070837A2 PCT/US2007/086792 US2007086792W WO2008070837A2 WO 2008070837 A2 WO2008070837 A2 WO 2008070837A2 US 2007086792 W US2007086792 W US 2007086792W WO 2008070837 A2 WO2008070837 A2 WO 2008070837A2
Authority
WO
WIPO (PCT)
Prior art keywords
toilet
switch
light source
toilet bowl
light
Prior art date
Application number
PCT/US2007/086792
Other languages
English (en)
Other versions
WO2008070837A9 (fr
WO2008070837A3 (fr
Inventor
Edward Ho
Original Assignee
Edward Ho
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 Edward Ho filed Critical Edward Ho
Publication of WO2008070837A2 publication Critical patent/WO2008070837A2/fr
Publication of WO2008070837A9 publication Critical patent/WO2008070837A9/fr
Publication of WO2008070837A3 publication Critical patent/WO2008070837A3/fr

Links

Classifications

    • 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
    • A47K13/302—Seats with cleaning devices

Definitions

  • the present invention relates to a toilet seat and lid and in particular a toilet seat and lid in combination with an ultra-violet light source which acts on a titanium dioxide coating on a surface of a toilet to produce a cleaning effect.
  • the UV light is formed in the lower section of the toilet lid with the light projecting outward and downward in order to provide sufficient intensity to kill bacteria in the bowl.
  • the location of the light is less than optimal for projecting energy onto the rim of the toilet bowl or into the bowl itself.
  • Both of these devices include UV lights using UV bulbs. UV lights in the form or light bulbs are relatively expensive, use large amounts of energy, and require approximately 40-75 Watts of energy at 120 Volts. As can be readily understood by those of skill in the art, the presence of such an energy source in close proximity to water, and particularly water that may be in very close proximity to an individual, is less than desirable.
  • UV light of sufficient energy to kill microbes can cause serious injury to humans.
  • prolonged exposure can lead to sight issues, and more immediately even relatively short exposure to UV light in the 230-260 nm (nanometer) wavelength range is well known to cause serious burns to the skin of individuals.
  • UV light toilet seats Perhaps in view of these problems there has been relatively little large scale commercialization of UV light toilet seats.
  • the toilets on which such devices are mounted are not cleaned. That is they are still susceptible to staining or being dirty, and in fact the killed microbes actually add to the problem.
  • the present invention endeavors to overcome the problems of the prior art and provide a toilet seat and lid with a UV light which produces a cleaning effect using UV light outside of the dangerous anti-microbial wavelength range and which does not present a significant risk of electrocution.
  • One aspect of the present invention is directed to a device for cleaning a toilet bowl including a toilet seat assembly having a toilet lid and a toilet seat, a UV-light source producing near UV light of a wavelength of about 360-410 nm secured to an interior side of the toilet lid, a first switch for turning the UV light source on when the toilet lid is placed in a closed position, and a second switch for turning the UV light off upon expiration of a predetermined period of time.
  • Additional features of the instant invention may include the toilet bowl being coated with a photocatalyst.
  • One photocatalyst that may be used is TiO2 suspended in an acrylic or polymer suspension.
  • the first switch may be a gravity switch located in a dome housing also containing the UV light source.
  • the first switch may be a normally open switch located proximal to the edge of the toilet lid and closes upon closing of the toilet lid.
  • the UV light source may be an LED or a plurality of LEDs.
  • a further aspect of the present invention is directed to a kit for retrofitting a toilet bowl and toilet seat assembly combination including a TiO2 coating material to be applied to the surface of the toilet bowl, and a UV light source to be connected to a toilet lid of the toilet seat.
  • the coating material being an acrylic based material
  • the UV light source being a plurality of LEDs.
  • the UV light source may be located in a housing including a power source and one or more switches.
  • the kit may include a normally open switch to be placed proximate to the edge of the toilet lid and a timing switch, or alternatively a timing switch and a gravity switch.
  • Another aspect of the present invention is a method of producing a cleaning effect in a toilet bowl including the steps of coating surfaces of toilet bowl where the cleaning effect is desired with a photocatalyst coating, providing a UV light source producing UV light having a wavelength of about 360-410 nm, and energizing the UV light source for a predetermined period of time to allow the UV light to react with the photocatalyst coating to produce a photocatalytic effect at the coated surface of the toilet to oxidize organic stain producing compounds.
  • the photocatalyst is TiO2.
  • the surface to be coated with the photocatalyst may be the internal bowl portion of the toilet, and may include the rim of the toilet.
  • Yet another aspect of the instant invention is a method of treating a toilet bowl to effect a photocatalytic process including steps of providing a UV light source, coating a desired portion of a toilet bowl with an photocatalytic material, and exposing the portion of the toilet bowl coated with the photocatalytic material to the UV light.
  • the photocatalytic material may be an acrylic based TiO2.
  • the coating may be performed at regular intervals. These regular intervals may include weekly, semi-monthly, monthly, quarterly, semi-annually, and annually.
  • Fig. 1 is a bottom view of a toilet seat assembly, according to one aspect of the present invention.
  • Fig. 2 is a perspective view of a toilet seat assembly in a closed position, according to one aspect of the present invention
  • Fig. 3 is a perspective view of a toilet seat assembly in an open position having a LED light source attached to the lid, according to one aspect of the present invention
  • Fig. 4 is a side view of an LED light source, according to one aspect of the present invention.
  • Fig. 5 is a perspective view of a toilet seat assembly installed on a toilet bowl, according to one aspect of the present invention.
  • Fig. 6 is a schematic diagram of an LED light source, according to one aspect of the present invention.
  • FIGs. 1-3 wherein a toilet seat assembly 10 comprising a toilet seat 16 and lid 12 is depicted.
  • the toilet seat assembly 10 is viewed from below and appears to comprise a normal toilet seat 16 and lid 12.
  • Fig. 2 a perspective view of the toilet seat assembly 10 is shown and again, from all outward appearances, the toilet seat assembly 10 appears normal.
  • Fig. 3 shows the toilet seat assembly 10 of the present invention in an open position.
  • the dome-shaped housing 14 includes a plurality of miniature UV lights, preferably light emitting diodes or LED's.
  • the light emitting diodes emit UV light with a wavelength of approximately 360 nm, but in any event not more than 410 nm and preferably not less than 340 nm which, though known to be outside of the anti-microbial range, can create an effective cleaning action.
  • the dome-shaped housing 14 is shown in side view in Fig. 4. The location of the light is essentially the geometic center of the toilet bowl.
  • Fig. 5 is a toilet seat assembly 10 according to one aspect of the instant invention, installed on a toilet bowl 17.
  • the toilet 17 bowl and surfaces to be cleaned must be coated with a photocatalyst such as a titanium dioxide (TiO2) in an acrylic or polymer suspension.
  • a photocatalyst such as a titanium dioxide (TiO2) in an acrylic or polymer suspension.
  • Other photocatalysts known to those of skill in the art including but not limited to Tungsten Oxide, Zinc Oxide, Zinc Sulfide, and Tin Oxide maybe used.
  • a photocatalyst coating receives ultraviolet radiation, a hydroxyl radical (-OH) or a sulfahydril radical (-SH), with its high performance in oxidative decomposition, and an anion such as a superoxide anion (-O2-), with its high performance in deoxidization, are generated on the surface.
  • the present invention is able to effectively clean the toilet bowl surface and prevent or remove stains in the bowl and on the surfaces of the toilet.
  • One aspect of the present invention is to provide a photocatalyst coating material such as TiO2 which is contained in an acrylic mixture that can be coated onto an existing toilet bowl and enable the use of the present invention with any toilet bowl currently in use.
  • Acrylic makes the surface of the toilet bowl non-porous thereby preventing bacteria and dirt from sticking to the bowl, making the bowl easier to clean.
  • the coating material is simply painted onto the desired surface of the toilet and allowed to dry. The coating may be performed as need depending upon the use of the individual toilet such that for example a single person living alone might only need to coat the toilet once per year, whereas a large family may need to coat the toilet once per quarter and a public restroom may need to be coated monthly or bi-monthly.
  • a photocatalytic material may be incorporated into the process such that the surfaces of the toilet bowl 17 include the photocatalyst material.
  • the dome-shaped housing 14 with the UV lights can also be sold along with the photocatalyst coating material as part of a kit for retrofitting to any existing toilet seat.
  • the dome-shaped housing 14 with the UV lights is shown in Fig. 5.
  • the housing 14 holds the components which make up the lighting aspects of the invention.
  • a power source 102 such as, for example, a 9-volt battery.
  • a gravity activated or mercury switch 104 Connected to the battery, in one example of the present invention is a gravity activated or mercury switch 104.
  • the gravity activated switch 104 closes the circuit when the lid 12 of the toilet seat assembly 10 is closed.
  • a timing switch 106 In connection with the gravity switch 104 is a timing switch 106.
  • the timing switch guarantees that upon activation the UV lights only remain on for a predetermined amount of time, for example 30 seconds.
  • the lights 108 which though shown as wired in parallel, may also alternately be wired in series.
  • a simple pressure switch 18 which connect to the power source 102 and extends to the edge of the toilet lid 12, preferably at the rear of the toilet lid 12, where the toilet lid 12 and the toilet seat 16 connect.
  • a simple pressure switch 18 can be secured on the bottom surface of the toilet lid 12 and be a normally open switch.
  • the switch Upon putting the toilet lid 12 in the lowered position, as shown in Fig. 2, the switch is closed and the light turns on.
  • the device may be used in conjunction with a timer to ensure that the light does not stay on beyond a predetermined period of time.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Toilet Supplies (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

Un dispositif pour nettoyer une cuvette de WC comprenant un ensemble lunette de WC comportant un couvercle de WC et une lunette de WC, une source de lumière ultraviolette produisant une lumière ultraviolette d'une longueur d'onde d'approximativement 360 nm, fixée à une face intérieure du couvercle de WC, un premier interrupteur pour allumer la source de lumière ultraviolette lorsque le couvercle des WC est placé en position fermée et un second interrupteur pour éteindre la lumière ultraviolette une fois expirée une période de temps prédéterminée.
PCT/US2007/086792 2006-12-07 2007-12-07 Abattant de wc a del WO2008070837A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/635,109 US20080134420A1 (en) 2006-12-07 2006-12-07 Led toilet seat cover
US11/635,109 2006-12-07

Publications (3)

Publication Number Publication Date
WO2008070837A2 true WO2008070837A2 (fr) 2008-06-12
WO2008070837A9 WO2008070837A9 (fr) 2008-10-23
WO2008070837A3 WO2008070837A3 (fr) 2008-12-18

Family

ID=39493098

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/086792 WO2008070837A2 (fr) 2006-12-07 2007-12-07 Abattant de wc a del

Country Status (2)

Country Link
US (1) US20080134420A1 (fr)
WO (1) WO2008070837A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015114671A1 (fr) * 2014-01-28 2015-08-06 Gastone Vitali Système d'élimination de bactéries à rayonnement ultraviolet pour couvercle de cuvette de toilettes

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM386321U (en) * 2009-12-17 2010-08-11 yan-jun Lin Toilet equipment capable of automatically sensing lifting toilet seat and flushing
US9339158B2 (en) * 2010-06-25 2016-05-17 Maximo Dorra Auto cleaning toilet seat and method of use
EP2919820A4 (fr) 2012-11-13 2016-08-17 Violet Defense Technology Inc Dispositif émettant une lumière ultraviolette
ITVT20130003A1 (it) * 2013-04-22 2014-10-23 Gastone Vitali Debatterizzatore universale applicabile a tutti i copriwater e pozzetti a pavimento
US10369239B2 (en) * 2014-11-06 2019-08-06 Sensor Electronic Technology, Inc. Ultraviolet-based bathroom surface sanitization
US10894103B2 (en) 2014-11-06 2021-01-19 Sensor Electronic Technology, Inc. Ultraviolet-based bathroom surface sanitization
US9861239B1 (en) * 2016-03-08 2018-01-09 Harry Robinson Toilet seat with sanitizing ultraviolet lamp
KR102222432B1 (ko) * 2016-05-13 2021-03-04 엘지전자 주식회사 정수기
US9986879B2 (en) * 2016-07-05 2018-06-05 David R. Hall Antimicrobial self-cleaning toilet
CA3038956C (fr) 2016-10-19 2023-12-19 Christopher Alexander CORSETTI Systeme de desinfection
US10206548B1 (en) * 2017-08-16 2019-02-19 David R. Hall Doped and non-doped titanium dioxide coated antimicrobial toilet
US20220354319A1 (en) * 2021-02-22 2022-11-10 Steve Wood Toilet Lid Accessory

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5920075A (en) * 1997-10-22 1999-07-06 Whitehead; Michael D. Ultraviolet sterilization device
JP2003062922A (ja) * 2001-08-23 2003-03-05 Mitsubishi Plastics Ind Ltd 光触媒コートアクリルフィルム及び光触媒コート積層体
JP2005232949A (ja) * 2004-01-22 2005-09-02 Aisin Seiki Co Ltd トイレ装置
US20060097189A1 (en) * 2004-11-08 2006-05-11 Masco Corporation Of Indiana Disinfecting system for a toilet

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04208125A (ja) * 1990-11-30 1992-07-29 Takao Kanbe 殺菌燈付洋式トイレ便座蓋
JPH09140633A (ja) * 1995-11-20 1997-06-03 Keiji Iimura 便座等の殺菌装置
IT1288420B1 (it) * 1997-01-22 1998-09-22 Roberto Agosti Impianto igienico-sanitario autopulente per uso pubblico
KR100882345B1 (ko) * 2001-09-28 2009-02-12 시바우라 메카트로닉스 가부시끼가이샤 광촉매체, 광촉매체의 제조 방법 및 광촉매체의 제조 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5920075A (en) * 1997-10-22 1999-07-06 Whitehead; Michael D. Ultraviolet sterilization device
JP2003062922A (ja) * 2001-08-23 2003-03-05 Mitsubishi Plastics Ind Ltd 光触媒コートアクリルフィルム及び光触媒コート積層体
JP2005232949A (ja) * 2004-01-22 2005-09-02 Aisin Seiki Co Ltd トイレ装置
US20060097189A1 (en) * 2004-11-08 2006-05-11 Masco Corporation Of Indiana Disinfecting system for a toilet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015114671A1 (fr) * 2014-01-28 2015-08-06 Gastone Vitali Système d'élimination de bactéries à rayonnement ultraviolet pour couvercle de cuvette de toilettes
EP3099210A1 (fr) * 2014-01-28 2016-12-07 Gastone Vitali Système d'élimination de bactéries à rayonnement ultraviolet pour couvercle de cuvette de toilettes

Also Published As

Publication number Publication date
WO2008070837A9 (fr) 2008-10-23
US20080134420A1 (en) 2008-06-12
WO2008070837A3 (fr) 2008-12-18

Similar Documents

Publication Publication Date Title
US20080134420A1 (en) Led toilet seat cover
US20070256226A1 (en) Toilet accessory with sterilization elements
KR20030008848A (ko) 공기 정화 기능의 모기 퇴치기
JPH09940A (ja) 光触媒装置及びその応用装置
US20090256085A1 (en) Ultra-violet sponge holder
JP3616982B2 (ja) 水処理装置
US20150147240A1 (en) Led Lamp Having Photocatalyst Agents
US20050060926A1 (en) Mosquito attracting and killing apparatus with air cleaning function
KR200400220Y1 (ko) 살균 기능을 가진 조명장치
JPH1171803A (ja) トイレ室
JP3912806B2 (ja) 光触媒装置
JP2008073152A (ja) 乾燥装置
KR102208024B1 (ko) 공기정화 기능을 가지는 개인용 살균장치
JP2010084353A (ja) 衛生洗浄装置
KR200335685Y1 (ko) 광센서가 부착된 휴대용 자외선 살균장치
JP4279842B2 (ja) トイレ室
KR20030095513A (ko) 모기 퇴치기
JP2004000663A (ja) 空気の浄化装置
JP2006200358A5 (fr)
JP2006255701A (ja) 光触媒装置
JP3674987B2 (ja) 抗菌脱臭ボックス
KR200393548Y1 (ko) 욕실용 조명기구
KR200288373Y1 (ko) 살균과 탈취 기능을 겸비한 건조기
KR200219774Y1 (ko) 안치식 크린 조화장식품
JP2014180484A (ja) トイレ装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07871661

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07871661

Country of ref document: EP

Kind code of ref document: A2