Toilet bowl odor eliminator
Battery energized apparatus mounted within the water tank for conventional flush toilet operates in any or all of three phases of operation to eliminate odors. During the initial phase, air from the toilet bowl is drawn from the toilet tank into a plenum to expose the air to UV radiation to produce ozone molecules that have an oxidizing effect on organic matter and the UV radiation serves as a germicide and a virucide. During the flush phase, ozone enriched air is entrained in the water flowing into the toilet bowl. During the sanitizing phase, ozone enriched air is channeled from the plenum into the toilet bowl.
The present application is related to and claims priority of a provisional application entitled “TOILET BOWL ODOR ELIMINATOR”, filed Nov. 23, 2005, and assigned Ser. No. 60/739,123, disclosing an invention by the present inventors.
BACKGROUND OF THE INVENTION1. Field of the Invention
The present invention relates to apparatus for removing odors from toilet bowls and, more particularly, to apparatus for subjecting gases attendant a toilet bowl to ultraviolet radiation and ozone.
2. Description of Related Prior Art
Conventional flushing toilet bowls used throughout the world release odorous gases into the room upon use. A common solution to this problem is actuation of an exhaust fan to exhaust air and gases from the room through a ceiling mounted exhaust fan. Such exhaust fans may also be located in the walls or ceiling of the room. These exhaust fans cause odorous gases to flow around and about an occupant and his/her clothing and some of the gases may permeate such clothing and hair of the user with socially unacceptable results. Moreover, the odorous gases are almost never exhausted completely by the time a user opens the door and some of the gases migrate therethrough into an adjoining area.
One of the most unpleasant effects of odorous gases is that a subsequent user of a toilet is often subjected to the presence of the gases which emanated from a previous user.
When a conventional toilet is flushed. A fine mist or aerosol is often created. Such a mist or aerosol will contain potentially harmful bacteria and viruses that will migrate throughout the adjacent area. This creates a potential health hazard to a subsequent occupant entering or within the adjacent area. Test results indicate that such a mist or aerosol may be present for up to two hours.
SUMMARY OF THE INVENTIONIn an initial phase of use of a conventional flush toilet incorporating the present invention, air is drawn through a stand pipe within a water tank and irradiated by an ultraviolet lamp. Such irradiation has the beneficial effect of killing bacteria/viruses and producing ozone which has a tendency to oxidize organic material. Thereby, odors generated will be essentially destroyed. During the flush phase, the flushing water flows through a venturi into the stand pipe and toilet bowl; a cartridge containing silver and/or copper ions or other water treatment element may also be incorporated. Simultaneously, the air is drawn from the toilet bowl and passed across the ultraviolet lamp with the above-noted beneficial effects. Additionally, a tube connected to the venturi includes an inlet for drawing irradiated air and entraining such ozone enriched air into the water flowing into the stand pipe and to the toilet bowl. Upon fill of the tank, the air flow past the ultraviolet lamp is reversed to inject ozone enriched air into the toilet bowl to oxidize organic elements that may be present during a sanitizing phase. The ozone may also be injected into the water flowing into the toilet bowl. To render the apparatus essentially self contained, it may be mounted within the toilet tank and elements thereof are battery operated to avoid any electrical hazard. A control panel may be used to initiate operation and thereafter function automatically or each step may be manually energized and de-energized.
It is therefore a primary object of the present invention to provide a self contained apparatus for eliminating odors attendant a toilet bowl.
Another object of the present invention is to provide apparatus that can be totally contained within a conventional tank of a flush toilet that eliminates odors emanating from the toilet bowl.
Yet another object of the present invention is to provide an adjunct to a conventional flush toilet that eliminates odors.
Yet another object of the present invention is to treat the water going into the bowl of the toilet.
Still another object of the present invention is to provide apparatus mounted within a conventional tank of a flush toilet that irradiates and ozonates gases drawn from a toilet bowl.
A further object of the present invention is to provide an add on apparatus for any conventional flush toilet that will eliminate odors generated during use of the toilet.
A further object of the present invention is to provide a method for treating water flowing into a toilet bowl.
A yet further object of the present invention is to provide a method for eliminating odors emanating from a toilet bowl.
A still further object of the present invention is to provide a method for irradiating and ozonating gases generated within a toilet bowl during use with apparatus contained within a toilet tank.
These and other objects of the present invention will become apparent to those skilled in the art as the description thereof proceeds.
BRIEF DESCRIPTION OF THE DRAWINGSThe present invention will be described with greater specificity and clarity with reference to the following drawings, in which:
Apparatus 10 operates in each of three phases. Such operation may be initiated and terminated by push buttons electrically connected to appropriate circuitry. Alternatively, the apparatus may transition through the three phases by use of a timer or sensing device(s) which sense flushing and filling of tank 12.
Apparatus 10 includes a plenum 50, which may be a folded tube, as illustrated. A conduit 52 extends from the plenum and includes a shroud 54 that loosely fits over the upper end of stand pipe 38, as illustrated. The stand pipe serves the standard function of preventing overflow of the tank. Conduit 26 may be penetrably mounted through conduit 52, as illustrated. An electrically operated fan 56 is disposed within plenum 50 to cause air flow in one direction or the other through the plenum.
In the initial phase illustrated, the fan draws air from the stand pipe, as represented by arrows 58, into conduit 52, as represented by arrow 60, and through the plenum, as represented by arrows 62. The air drawn through the stand pipe will cause a low pressure within the toilet bowl and air is drawn from within the toilet bowl into the stand pipe, as represented by arrows 64.
Downstream of fan 54 within plenum 50 there is disposed an ultraviolet lamp 70. Upon energization of the lamp, it will provide radiation in the ultraviolet range. Such radiation is well known to be a germicide and virucide. Thus, the air flowing about the lamp, as represented by arrows 72, will convey bacteria and other living organisms that may have been within the air within the toilet bowl past lamp 70 and become irradiated with ultraviolet radiation. As is well know that such radiation will have a germicidal and virucidal effect upon irradiated bacteria. Additionally, the ultraviolet radiation may be in a wavelength range to cause conversion of oxygen molecules present in the air into ozone molecules and/or in a wavelength range which will kill bacteria. The presence of ozone within the air flowing through plenum 50 will have an oxidizing effect upon organic material conveyed by the air. Thus, any malodor caused by the bacteria and/or organic compounds will be eliminated by destruction of the bacteria and organic compounds. The air flowing out of plenum 50, as represented by arrows 74, will be essentially odorless. The air discharged from the plenum into the top of tank 12 will be exhausted through the spaces between lid 40 and the tank as represented by arrows 42.
The operation of apparatus 10 during the flush phase will be described with reference to
Preferably, a venturi 80 or other entrainment device is disposed in conduit 26. A conduit 82 is connected to the venturi and includes an inlet 84 disposed within plenum 50. The low pressure within venturi 80 will draw ozone enriched air from within plenum 50 into conduit 26 for entrainment within the water therein. The ozone entrained water will be discharged therefrom, as represented by dashed lines 86 into stand pipe 38 and ultimately into the toilet bowl, as represented by arrow 76. The entrained ozone that ultimately enters the toilet bowl will have the effect of oxidizing organic matter within the toilet bowl and with which it comes in contact.
As an option, a cartridge 88 containing silver/copper ions or other elements may be mounted in conduit 26 to dispense any of these elements into the water flowing through the conduit. Such elements have the potential for continuous bacterial and viral inactivation.
On completion of the flush phase, apparatus 10 operates in a sanitizing phase. The purpose of this phase is that of eliminating any odors that still may be present in the toilet bowl and to attempt to sanitize the surfaces of the toilet bowl, seat and lid. After tank 12 has filled, as illustrated in
Referring jointly to
Preferably, apparatus 10 is mounted within tank 12 (see
From the above description, it is apparent that apparatus 10 is totally self contained and requires no interaction with any elements, parts or other structure external of the water tank. Furthermore, when in place, apparatus 10 is essentially not visible to a user except to the extent that a control panel for operating the apparatus is available for tactile engagement to operate the various switches and/or pushbuttons.
Claims
1. A toilet bowl odor eliminator mounted within a water tank of a conventional flush toilet having a standpipe in fluid communication with the toilet bowl, a flapper valve for passing water to the toilet bowl from the water tank and a water fill tube extending from a valve mechanism responsive to the water level in the water tank for filling the tank, said odor eliminator comprising in combination:
- a) a plenum for accommodating a flow of air therethrough;
- b) a UV lamp disposed in said plenum for irradiating air within said plenum to kill microorganisms and to selectively convert oxygen molecules into ozone molecules and produce ozone enriched air for oxidizing organic matter present in the air and to kill bacteria and viruses that may be present in the air;
- c) a fan for urging a flow of air through said plenum; and
- d) a conduit interconnecting the stand pipe with said plenum, whereby said fan draws air from the toilet bowl through the stand pipe into said plenum to subject the drawn air to radiation from said UV lamp.
2. The apparatus as set forth in claim 1 including a venturi disposed in the fill tube and connected to said plenum to receive ozone enriched air from said plenum for ozonating the water flowing through the fill tube into the toilet bowl.
3. The apparatus as set forth in claim 1 including a cartridge disposed in the fill tube for dispensing a selected element into the fill water.
4. The apparatus as set forth in claim 1 including means for reversing flow of ozone enriched air through said plenum and urging the air into the standpipe.
5. The apparatus as set forth in claim 1 including means for mounting said odor eliminator at the top of the water tank.
6. A toilet bowl odor eliminator mounted within a water tank of a conventional flush toilet having a standpipe in fluid communication with the toilet bowl, a flapper valve for passing water to the toilet bowl from the water tank and a water fill tube extending from a valve responsive to the water level in the water tank for filling the tank, said odor eliminator having three phases of operation and comprising in combination:
- a) a plenum for accommodating a flow of air therethrough;
- b) a UV lamp disposed in said plenum for irradiating air within said plenum to kill microorganisms and to selectively convert oxygen molecules into ozone molecules and produce ozone enriched air for oxidizing any organic matter than may be present in the air and for destroying bacteria and viruses that may be present in the air;
- c) a fan for urging a flow of air through said plenum;
- d) a conduit interconnecting the stand pipe with said plenum;
- e) a venturi disposed in the fill tube and connected to said chamber to receive ozone enriched air from said and discharge it plenum into the fill tube;
- f) said fan being energized in the initial and flush phase of operation to draw air from the toilet bowl through the stand pipe and into said plenum;
- g) upon flow of water from the valve mechanism through said venturi in the flush phase of operation, said venturi draws ozone enriched air from said plenum into the water flowing into the stand pipe; and
- h) said fan being energized in a reverse direction during the sanitizing phase of operation to cause ozone enriched air to flow through the stand pipe into the toilet bowl.
7. The apparatus as set forth in claim 6 including a cartridge disposed in the fill tube for dispensing an element into the fill water.
8. The apparatus as set forth in claim 6 including means for mounting said odor eliminator at the top of the water tank.
9. A method for eliminating odor attendant a conventional flush toilet having a stand pipe and a valve mechanism for injecting water into the toilet tank as a function of the water level in the toilet tank with apparatus mounted within the water tank of the toilet, said method comprising the steps of:
- a) an initial phase of operation including drawing air from within the toilet bowl, through the stand pipe and through a plenum formed as part of the apparatus, exposing the air flowing through the plenum to a source of ultraviolet radiation to convert some of the oxygen molecules into ozone molecules and create ozone enriched air to promote oxidation of organic matter by the ozone molecules and to promote destroying any bacteria and viruses present in the air flowing through the plenum;
- b) a flush phase of operation, including said steps undertaken during the initial phase and further including the step of entraining some of the ozone enriched air in the water flowing into the stand pipe from the valve mechanism; and
- c) a sanitizing phase of operation, including reversing the flow of air within the plenum to cause ozone enriched air to flow through the stand pipe and into the toilet bowl.
10. The method as set forth in claim 9, including the step of injecting an element into the water flowing into the stand pipe during the flush phase of operation.
11. The method as set forth in claim 9, including the step of exhausting the ozone enriched air from the plenum into the toilet tank during the initial and flush phases of operation.
12. The method as set forth in claim 11 wherein the water tank includes a cover and wherein said step of exhausting includes the step of discharging ozone enriched air from the water tank between the water tank and the cover.
13. The method as set forth in claim 9, including a control unit for activating the initial phase, the flush phase and the sanitizing phase of operation.
14. The method as set forth in claim 13 wherein said step of activating is selectively manually controlled.
15. The method as set forth in claim 13 wherein said step of activating is automatically controlled.
16. The method as set forth in claim 9, including the step of suspending the apparatus from the top edges of the water tank.
17. The method as set forth in claim 9, including the step of providing electric power from batteries supported by the apparatus.
18. A method for eliminating odors attendant a conventional flush toilet with apparatus supported within the water tank of the toilet, said method comprising the steps of:
- a) drawing air from within the toilet into a plenum formed as part of the apparatus;
- b) irradiating the air within the plenum during exercise of said step of drawing with UV radiation to produce a stream of zone enriched air exhausting from the plenum and to serve as a germicide and a virucide;
- c) entraining the ozone enriched air in water flowing into the toilet bowl;
- d) reversing the flow of air subsequent to operation of said step of drawing; and
- e) injecting ozone enriched air into the toilet bowl during exercise of said step of reversing.
19. The method as set forth in claim 18, including the step of injecting an element into the water flowing into the toilet bowl.
20. The method as set forth in claim 18, including the step of providing direct current electric power supported by the apparatus to operate the apparatus.
Type: Application
Filed: Mar 14, 2006
Publication Date: May 24, 2007
Inventors: Raymond Denkewicz (East Greenwich, RI), Rolf Engelhard (Prescott, AZ)
Application Number: 11/374,792
International Classification: E03D 9/04 (20060101);