Toilet ventilation system
A ventilation system for a toilet having a toilet bowl, a toilet seat for supporting a user of the toilet, and a tank mounted on the toilet bowl for holding water used in flushing the toilet. The ventilation system includes a fan adapted for connection to the toilet bowl to draw odorous air from the toilet bowl into the fan and to discharge the odorous air from the toilet. A fan water supply line is adapted for fluid communication with the fan wherein water from the water supply line is adapted to power the fan to evacuate the odorous air from the toilet.
This invention relates generally to a ventilation system and more particularly to a ventilation system for ventilating unpleasant odors from a toilet.
A variety of ventilation systems are common in the art to dissipate unpleasant odors present in a restroom or lavatory facility. Most commonly, ceiling ventilation fans have been used to continuously withdraw air from the restroom when the toilet is in use. However, ceiling ventilation fans only ventilate unpleasant odors after they have already diffused throughout the restroom facility. Consequently, ceiling fans are ineffective in eliminating odors before they are generally noticeable throughout the restroom. Also, ceiling fans are inefficient because they require venting large volumes of air from within the restroom in order to adequately vent the odorous air.
Ventilation systems have been provided that ventilate air directly from a toilet bowl. However, such systems are complicated and difficult to assemble. Further, such systems typically require electrical power to drive a motorized fan. As such, electrical wiring must be mounted in or near the toilet so that the electrical components are in frequent contact with water used in the toilet. The components of an electrically powered ventilation system mounted inside a toilet frequently short or fail making the use of electrical powered toilet ventilation systems expensive to supply, maintain, and repair.
Therefore, a need exists for a ventilation system that ventilates air from a toilet that is easy to install and reliable to operate.
SUMMARY OF THE INVENTIONAmong the several objects of this invention may be noted the provision of a ventilation system that is easy to install and operate; the provision of such a ventilation system that is efficient; the provision of such a ventilation system that is free from electrical componentry; the provision of such a ventilation system that can be retrofitted into an existing toilet; and the provision of such a ventilation system that is disposed, at least in part, in a toilet. At least one of the preceding objects is met in whole or in part by the present invention described herein.
In general, a ventilation system for a toilet having a toilet bowl, a toilet seat for supporting a user of the toilet, and a tank mounted on the toilet bowl for holding water used in flushing the toilet comprises a fan adapted for connection to the toilet bowl. The fan draws odorous air from the toilet bowl and discharges the odorous air from the toilet. A fan water supply line is adapted for fluid communication with the fan wherein water from the water supply line is adapted to power the fan to evacuate the odorous air from the toilet.
In another aspect of the invention, a ventilated toilet system comprises a toilet having a toilet bowl and a tank for storing flush water of the toilet. A water-driven fan is disposed for being impinged by water supplied to the toilet. The water-driven fan is adapted to draw odorous air from the toilet bowl into the fan and to discharge the odorous air to a location remote from the toilet bowl.
In yet another aspect of the invention, a ventilated toilet system comprises a toilet with a toilet bowl having a drain, a plenum, and openings spaced around the toilet bowl in fluid communication with the plenum, a tank for storing flush water of the toilet, and a toilet seat mounted on the toilet bowl. A water-driven fan is disposed for being impinged by water supplied to the toilet. The water-driven fan is adapted to draw odorous air from the toilet bowl and to discharge the odorous air to a location remote from the toilet bowl. The water-driven fan comprises a water-powered motor adapted for communication with a water supply line and fan blades driven by said water powered motor to evacuate odorous air from the toilet. An air inlet conduit is in communication with the plenum and the fan for drawing odorous air into the fan. An air outlet conduit is mounted in the tank and connected to the fan. The air outlet conduit comprises a passage in the toilet bowl in fluid communication with the drain of the toilet bowl for discharging odorous air from said toilet. A water supply valve in the fan water supply line controls the flow of water to the fan. The water supply valve has an actuator operable upon the application of pressure to the toilet seat to permit operation of the fan.
Other objects and features of the present invention will be in part apparent and in part pointed out hereinafter.
BRIEF DESCRIPTION OF THE DRAWINGS
Corresponding parts are designated by corresponding reference numbers throughout the drawings.
DESCRIPTION OF PREFERRED EMBODIMENTS Referring to
A handle 25 mounted on the exterior of the tank 19 is operatively connected to a flush valve 29 located in the bottom of the tank to control the flow of water from the tank to the toilet bowl 13. As shown in
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The ventilation system 1 of the present invention comprises a water-driven fan 109 mounted in the tank 19 in fluid communication with the interior space 69 of the toilet bowl 13. The water-driven fan 109 is free from any electrical circuitry and is operable to evacuate the toilet 5 of odorous air based on the pressure and flow of water entering the fan. Upon operation of the fan 109, the ventilation system 1 evacuates odorous air from the toilet bowl 13 and discharges the odorous air from the toilet 5.
In the illustrated embodiment, the ventilation system 1 has a fan water supply line 113 that branches off from the tee 93 downstream of the manual water valve 47 to supply water to the water-driven fan 109 mounted in the tank 19. In the illustrated embodiment, the fan water supply line 113 is routed to a control valve 117 located on the top of the toilet bowl 13 that is positioned for contact with the bottom surface of the toilet seat 15 in the lowered position of the toilet seat. The fan water supply line 113 extends from the control valve 117 into the tank 19 and has an outlet 121 mounted on the water-driven fan 109 for discharging water into the fan. In one embodiment, the control valve 117 has a push-button actuator 125 that contacts the bottom surface of the toilet seat 15 in the closed position of the seat. When the toilet seat 15 is lowered, the actuator 125 is depressed causing the control valve 117 to open so that water is supplied to the water-driven fan 109. It is understood that the control valve 117 may be other types of valves having other types of actuators 125. Further, the control valve 117 may be otherwise located for remote operation by a pressure switch (not shown) mounted on the toilet bowl 13 or a wall-mounted switch (not shown) without departing from the scope of this invention.
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In use, the ventilation system 1 of the present invention evacuates odorous air from the interior space 69 of the toilet bowl 13 to prevent detection by a user of the toilet 5. Upon lowering of the toilet seat 15, the control valve 117 opens to supply water to the water-driven fan 109 mounted in the tank 19 of the toilet 5. The water discharging from the outlet 121 of the fan water supply line 113 contacts the vanes 181 of the water-powered motor 145 to cause the shaft 185 and fan blades 149 to rotate. The rotation of the fan blades 149 discharges air from the fan 109 and creates a vacuum in the fan that draws in odorous air from the interior space 69 of the toilet bowl 13. As indicated by arrows A1 of
It is understood that the ventilation system 1 of the present invention could be supplied as a kit of parts for retrofit of an existing toilet 5 or the ventilation system could be supplied as part of a new toilet without departing from the scope of this invention.
When introducing elements of the present invention or the preferred embodiment(s) thereof, the articles “a”, “an”, “the” and “said” are intended to mean that there are one or more of the elements. The terms “comprising”, “including” and “having” are intended to be inclusive and mean that there may be additional elements other than the listed elements.
In view of the above, it will be seen that the several objects of the invention are achieved and other advantageous results attained.
As various changes could be made in the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
Claims
1. A ventilation system for a toilet comprising a toilet bowl, a toilet seat for supporting a user of the toilet, and a tank mounted on the toilet bowl for holding water used in flushing the toilet, said ventilation system comprising:
- a fan adapted for connection to the toilet bowl to draw odorous air from the toilet bowl and to discharge the odorous air from the toilet,
- a fan water supply line adapted for fluid communication with the fan wherein water from said water supply line is adapted to power said fan to evacuate the odorous air from the toilet.
2. The ventilation system of claim 1 wherein said ventilation system is free from any electrical circuitry and is operable based on pressure and flow of said water exiting the fan water supply line.
3. The ventilation system of claim 1 wherein the fan is sized for mounting in the toilet.
4. The ventilation system of claim 1 wherein said fan comprises a water-powered motor adapted for communication with said fan water supply line and fan blades driven by said water-powered motor.
5. The ventilation system of claim 1 wherein said ventilation system comprises an air inlet conduit for drawing odorous air into said fan and an air outlet conduit for discharging odorous air from said toilet.
6. The ventilation system of claim 5 wherein said air inlet conduit is adapted for connection to a plenum in fluid communication with openings spaced around the toilet bowl in fluid communication with an interior space of the toilet bowl, the fan being adapted to draw odorous air from the interior space of the toilet bowl through said openings and the plenum.
7. The ventilation system of claim 6 wherein said air inlet conduit includes a check valve for the control of air flow into said fan.
8. The ventilation system of claim 6 wherein said air outlet conduit is adapted to convey air from an outlet of said fan to a drain of said toilet to discharge odorous air from the toilet.
9. The ventilation system of claim 5 wherein said fan is adapted to be supported in said tank by the air inlet conduit and the air outlet conduit.
10. The ventilation system of claim 1 further comprising a water saving container for receiving and storing water discharged from the fan.
11. The ventilation system of claim 10 wherein said water saving container comprises a drain valve operable based on the level of water in said toilet tank.
12. The ventilation system of claim 1 further comprising a control valve in said fan water supply line controlling the flow of water to said fan, said control valve comprising an actuator operable upon the application of pressure to said toilet seat.
13. The ventilation system of claim 12 wherein said actuator is a push-button actuator adapted to be in contact with the toilet seat in a lowered position of said toilet seat and moveable between a first position in which the valve is closed and no water is supplied to the fan and a second position in which the valve is open and water is supplied to the fan to evacuate air from the toilet.
14. A ventilated toilet system comprising:
- a toilet comprising a toilet bowl and a tank for storing flush water of the toilet,
- a water-driven fan disposed for being impinged by water supplied to the toilet, said water-driven fan being adapted to draw odorous air from the toilet bowl and to discharge said odorous air to a location remote from the toilet bowl.
15. The ventilated toilet system of claim 14 wherein said water-driven fan comprises a water-powered motor adapted for communication with a water supply line and fan blades driven by said water powered motor to evacuate odorous air from the toilet.
16. The ventilated toilet system of claim 15 wherein the motor is disposed in the tank and is adapted for communication with the same water supply line that supplies flush water to the tank.
17. The ventilated toilet system of claim 16 wherein said water-driven fan is disposed in the tank and is free from any electrical circuitry.
18. The ventilated toilet system of claim 15 wherein said water-driven motor has vanes adapted to be impinged by water supplied to the fan and said fan blades being operatively connected to said vanes.
19. The ventilated toilet system of claim 18 further comprising an air inlet conduit for drawing odorous air into said fan and an air outlet conduit for discharging odorous air from said toilet.
20. The ventilation system of claim 19 wherein the toilet bowl has a drain, a plenum, and openings spaced around the toilet bowl in fluid communication with the plenum, and wherein the air inlet conduit is in communication with the plenum and the fan, said air outlet conduit being mounted in the tank in fluid communication with the fan and the drain of the toilet bowl.
21. A ventilated toilet system comprising:
- a toilet comprising a toilet bowl having a drain, a plenum, and openings spaced around the toilet bowl in fluid communication with the plenum, a tank for storing flush water of the toilet, and a toilet seat mounted on the toilet bowl,
- a water-driven fan disposed for being impinged by water supplied to the toilet, said water-driven fan being adapted to draw odorous air from the toilet bowl and to discharge said odorous air to a location remote from the toilet bowl, the water-driven fan comprising a water-powered motor adapted for communication with a water supply line and fan blades driven by said water powered motor to evacuate odorous air from the toilet,
- an air inlet conduit in communication with the plenum and the fan for drawing odorous air into said fan,
- an air outlet conduit mounted in the tank and connected to the fan, the air outlet conduit comprising a passage in the toilet bowl in fluid communication with the drain of the toilet bowl for discharging odorous air from said toilet,
- a fan water supply line adapted for fluid communication with the fan wherein water from said water supply line is adapted to power said fan to evacuate odorous air from the toilet, and
- a control valve in said fan water supply line controlling the flow of water to said fan, said control valve comprising an actuator operable upon the application of pressure to said toilet seat to permit operation of the fan.
Type: Application
Filed: Oct 25, 2004
Publication Date: Apr 27, 2006
Inventor: David Birdsong (Williamsville, MO)
Application Number: 10/973,053
International Classification: E03D 9/04 (20060101);