WO1995030802A1 - Ensemble de ventilation pour toilettes - Google Patents
Ensemble de ventilation pour toilettes Download PDFInfo
- Publication number
- WO1995030802A1 WO1995030802A1 PCT/US1994/006677 US9406677W WO9530802A1 WO 1995030802 A1 WO1995030802 A1 WO 1995030802A1 US 9406677 W US9406677 W US 9406677W WO 9530802 A1 WO9530802 A1 WO 9530802A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- toilet
- water
- valve
- tank
- air
- Prior art date
Links
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
Definitions
- the present invention relates generally to the field of toilets, and particularly with respect to those devices used as ventilation systems for toilets.
- Background of the Invention Ridding a bathroom of the unpleasant odors and aromas associated with a toilet may be solved by using chemical type deodorizers that are often perfumed and injected into the water of the toilet. However, these are often short lived and may otherwise not adequately solve the problem of deodorizing odors in a bathroom.
- toilets have been adapted or modified to include means to draw odors from the toilet where such odors are further exhausted or deodorized.
- U.S. Patent No. 4,153,956 uses a device to draw the odors through the water passages present in a conventional toilet having a water tank and bowl.
- this invention requires significant modification or adaptation to the lid of the water tank of a toilet.
- the actual deodorizing device is visible.
- Other devices known in the art require additional significant adaptations that may not be readily and economically incorporated into conventional toilets and building constructions.
- the ventilation system is used with a conventional toilet having a bowl with a water tank.
- a water passageway is available in the rim of the bowl, extends into the tank and is integral with a vertical water overflow tube mounted in the tank.
- My system utilizes this water flow system as an air flow passageway to remove aromas from the toilet bowl and tank.
- My invention includes an air drawing or inducing means that is connected to the back of the tank at a point somewhere above the water line of the tank.
- the air induction means may include a vacuum motor and is preferably mounted out of sight as in the wall voids or ceiling attic space near the toilet and draws air through the passageway and piping to create a vacuum suction directing air flow out of the toilet.
- An air flow regulating means is mounted to the ventilation system and is actuated by the lowering and raising of the water level in the toilet tank.
- This control means may include a shut-off valve pivotally mounted where the ventilation unit attaches to the water tank and a floating device connected to the valve acts to pivot the valve and opens or closes it as the water level rises or lowers.
- An additional valve may be mounted adjacent the tank that operates in opposition to the shut off valve to provide relief in the tank when the water level drops creating a vacuum in the tank.
- the ventilation system is activated while the toilet is in use and draws air through the water passageways of the toilet and through the tank to the wall voids surrounding the toilet where it is exhausted through a vacuum motor.
- FIG 1 is a rear elevational view of a toilet with a portion of the tank cut away.
- Figure 2 is a sectional view taken along line 2-2 in Figure 1.
- Figure 3 is a side view of the shut-off valve.
- Figure 4 is a side view of a relief valve.
- Figure 5 is a front view of valves mounted in the tank.
- Figure 6 is a side view of valves in Figure 5.
- Figure 7 is a perspective view of a toilet equipped with the ventilation unit Detailed Description of the Drawings Referring to the drawings for a better understanding of the invention, it will be appreciated that my invention is utilized with a conventional toilet 11.
- These toilets include a bowl 12 with a tank 13 as illustrated in Figures 1 and 2.
- a vertical water overflow tube 17 is mounted within the water tank 13 and integral with the conduit 14.
- the toilet 11 is positioned against a wall having a void defined by studs 39 and horizontal frame members 41.
- water flows from the tank 13 into the conduit 14 and out of the water holes 16 to rinse the bowl 12.
- My invention uses this passageway to induce air flow opposite the direction of water flow prior to flushing to draw aromas or odors from the bowl and away from the tank as illustrated in Figure 7.
- the ventilation unit includes an air induction means to facilitate the air flow away from the tank.
- air induction means may include a vacuum motor 19 connected to the water tank 13 above the water line 18.
- the vacuum motor 19 is preferably mounted in the wall voids 21 or attic space 22 surrounding the toilet 11, and may be electrically activated by an electrical switch or timer mounted close to the toilet 11 in the bathroom. Another embodiment may include means for automatically activating and de-activating the vacuum motor in accordance with the movement of the toilet lid.
- a reflector 52 is mounted in the lid of the toilet, and a photo-relay infrared sensor 53 is mounted in the ceiling to detect light from the reflector 52. The sensor 53 is electrically connected 02
- a conduit 23 is connected to the vacuum motor 19 and extends downward into the wall void 21 behind the toilet 11.
- a second conduit 24 is mounted in the back of the water tank 13 at a point above the water line 18 of the water tank 13.
- the conduits 23 and 24 may be interconnected to form a single conduit which extends between the vacuum motor 19 and toilet tank 13, to improve draw created by the vacuum motor and avoid potential air leaks in the wall voids.
- the material used for the conduits 23 and 24 may be conventional polyvinyl chloride (PVC), copper, stainless steel or any conventional piping used in plumbing construction.
- the air flow is in reverse to the water flow through the water holes 16, conduit 14, to the overflow tube 17 and out of the tank 13 through the conduit 24. Then the air is directed up the wall void 21 through conduit 23 and into the vacuum motor 19 where it is exhausted.
- the size of the vacuum motor and conduit 23 and 24 may vary dependant on the amount of vacuum intended to be drawn.
- a vacuum may be better created in the toilet by sealing the lid of the water tank 13 using rubber gasket seals on the lid of the tank 13 and the bottom of the toilet seat mounted to the toilet bowl 12. Any additional spaces in the tank should also be sealed to facilitate vacuum suction.
- the type vacuum motor that has proven to work well is a motor manufactured by United Electric, Inc., model #116309-00.
- the motor operates at 26,000 rotations per minute and has a draw of 63 inches of H 2 0 vacuum.
- the motor may be modified to adjust its noise level and amount of draw; for example, a motor operating at approximately 15,000 to 16,000 rotations to pull a vacuum of approximately 1 to 2 inches at the bowl.
- This embodiment is relatively quiet and provides a sufficient draw to remove odors and aromas without over-inhibiting the flow of water during flushing.
- the vacuum motor 19 may be readily aligned with the sewage lines to the toilet 11 already present in the building frame.
- the vacuum motor 19 and conduit 23 is mounted in the ceiling in alignment with the sewage lines. When the drywall or sheetrock is secured to the frame it is marked to show placement of the vacuum motor 19 and conduit 23.
- shut-off valve 27 pivotally mounted in conduit 24 adjacent to tank 13, shown in Figures 1, 2 and 3.
- One construction of this shut-off valve 27 includes a plate 29 and arm member 28 attached to the plate 29 that extends downward into the tank 13.
- the plate 29 and arm member 28 may be constructed of material used in the plumbing industry, such as brass or stainless steel.
- a floatable device 26, such as a styrofoam plug, is attached to the arm member 28 distal the plate 29.
- a pin 32 traverses the opening of the conduit 24 and the plate 29 is rotatably secured to the pin 32 to form a hinge-type mechanism.
- a flange section 31 may be placed on the conduit 24 to better secure the pin 32 in the conduit 24.
- valve 48 will be in a substantially vertical position when the water is at its highest level while valve 27 is in a horizontal position. As the water drops, the valve will open allowing air to be drawn from outside the tank 13.
- the valves may be connected to the same floatable device so that the opening and closing of the valves is synchronized. As illustrated in Figures 5 and 6 one embodiment may involve the valves 48 and 27 approximately 4 inches apart.
- the back plate 29 in the valves has an L-shaped arm 51 extending intermediate the valves and is connected to a small coupling device 30. The arm 51 is fixed to the plates such that as one valve opens the other moves in a closed position. This way the movement of the valve is synchronized to provide relief in the tank during flushing and regulation of the air flow generated by the vacuum motor 19.
- An aperture may be placed in the conduit 23 adjacent the vacuum motor to provide an alternative source of air to the vacuum. This provides air to the vacuum when the shut off valve seals the toilet from the vacuum draw.
- the size of the hole may vary depending on the amount of vacuum desirable to pull at the bowl.
- An aperture about 3/4 inches in diameter has been found to work well with the size vacuum motor and tubing referenced above. This additional air allows the motor to operate more quietly during operation.
- Another embodiment may include a relief valve 33 mounted in the conduit 23 adjacent vacuum motor 19. As shown in Figures 4 and 5 the relief valve 33 may include a spring loaded adjustable relief valve that is activated when the shut-off valve 27 closes off the air flow to the vacuum motor 19.
- the spring loaded relief valve 33 may be adjustable to open a passage way for the vacuum to continue to draw air after the shut-off valve 27 has been activated to close off the source of air flow into the vacuum motor 19. As illustrated in Figure 4, the relief valve 33 is easily adaptable to the ventilation unit.
- a guide 34 is mounted to the top of a T-shape conduit 36.
- a bolt 37 is vertically secured in the guide 34 and a plate 46 is horizontally mounted to the bottom of the bolt 37.
- a spring 38 fits over the bolt 37 and is held on by the nut 47 so the tension in the spring 38 is adjustable by vertically adjusting the nut 47 on the bolt 43.
- the vacuum eventually must draw air from an alternative source through the opening in the top of the T-shape conduit 36.
- the pull drawn from the vacuum motor 19 will activate the relief valve 33, pulling plate 44 down allowing the vacuum to draw air from the attic space 22 to prevent the vacuum motor 19 from burning out.
- a user entering the bathroom may activate the vacuum motor 19.
- the vacuum motor 19 inducing air to flow out of the back of the water tank 13 and into the wall void 21 and eventually into the vacuum motor 19 mounted above the ceiling.
- the shut-off valve 27 is held in a substantially horizontal position to facilitate the air flow into the wall void 21.
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
Un ensemble de ventilation pour toilettes possède un moteur à vide (19) monté dans une paroi (21) entourant les toilettes (11) ou dans un espace à plafond (22), tel qu'une mansarde. Le moteur à vide (19) est relié à l'arrière du réservoir (13) et utilise la conduite d'eau (14, 16) de la toilette (11), afin d'attirer les odeurs provenant de la cuvette (12). Une vanne de coupure d'air (27) est montée en position contiguë à l'arrière du réservoir (13) et est actionnée simultanément à la montée et à la descente du niveau d'eau (18), afin de couper l'air provenant de la cuvette (19). Une vanne supplémentaire (48) est également montée en position contiguë au réservoir (13), afin de s'opposer à la vanne de coupure (27) et à compenser le vide créé par la chute du niveau d'eau (18), lorsqu'on tire la chasse. Une vanne de décharge (33) est contiguë au moteur à vide (19), afin d'aspirer de l'air depuis une autre source d'air que les toilettes (11), quand la vanne de coupure (27) est actionnée.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/014,844 US5305472A (en) | 1993-02-08 | 1993-02-08 | Ventilation unit for a toilet |
PCT/US1994/006677 WO1995030802A1 (fr) | 1993-02-08 | 1994-05-09 | Ensemble de ventilation pour toilettes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/014,844 US5305472A (en) | 1993-02-08 | 1993-02-08 | Ventilation unit for a toilet |
PCT/US1994/006677 WO1995030802A1 (fr) | 1993-02-08 | 1994-05-09 | Ensemble de ventilation pour toilettes |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995030802A1 true WO1995030802A1 (fr) | 1995-11-16 |
Family
ID=26686596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1994/006677 WO1995030802A1 (fr) | 1993-02-08 | 1994-05-09 | Ensemble de ventilation pour toilettes |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO1995030802A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7162751B2 (en) | 2003-04-17 | 2007-01-16 | Mundt Fred S | Ventilated toilet system |
EP1930511A3 (fr) * | 2006-11-22 | 2015-06-10 | Eureka- Concept S.P.R.L | Cuvette de WC |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB493200A (en) * | 1937-04-03 | 1938-10-03 | Stanley Harris Churchill | Method of and means for ventilating toilet fixtures |
US2190068A (en) * | 1938-05-13 | 1940-02-13 | Henschler Ewald | Lavatory device |
US3192539A (en) * | 1963-08-01 | 1965-07-06 | William L Martz | Ventilators for water closets, kitchens and the like |
US3939506A (en) * | 1974-01-18 | 1976-02-24 | Pearson Raymond H | Odor control ventilator |
US4007498A (en) * | 1976-01-05 | 1977-02-15 | Pearson Raymond H | Toilet ventilator including overflow-responsive sensor |
US4017916A (en) * | 1975-01-13 | 1977-04-19 | Pearson Raymond H | Toilet ventilator including motion-responsive electrical transducer |
US4232406A (en) * | 1979-05-18 | 1980-11-11 | Beeghly Lester R | Water closet ventilating system with vacuum breaker valve |
US5029346A (en) * | 1990-05-15 | 1991-07-09 | Fernald Sr Robert C | Toilet bowl vent system |
US5054130A (en) * | 1990-05-21 | 1991-10-08 | Wilson Thomas R | Toilet deodorizing device |
-
1994
- 1994-05-09 WO PCT/US1994/006677 patent/WO1995030802A1/fr active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB493200A (en) * | 1937-04-03 | 1938-10-03 | Stanley Harris Churchill | Method of and means for ventilating toilet fixtures |
US2190068A (en) * | 1938-05-13 | 1940-02-13 | Henschler Ewald | Lavatory device |
US3192539A (en) * | 1963-08-01 | 1965-07-06 | William L Martz | Ventilators for water closets, kitchens and the like |
US3939506A (en) * | 1974-01-18 | 1976-02-24 | Pearson Raymond H | Odor control ventilator |
US4017916A (en) * | 1975-01-13 | 1977-04-19 | Pearson Raymond H | Toilet ventilator including motion-responsive electrical transducer |
US4007498A (en) * | 1976-01-05 | 1977-02-15 | Pearson Raymond H | Toilet ventilator including overflow-responsive sensor |
US4232406A (en) * | 1979-05-18 | 1980-11-11 | Beeghly Lester R | Water closet ventilating system with vacuum breaker valve |
US5029346A (en) * | 1990-05-15 | 1991-07-09 | Fernald Sr Robert C | Toilet bowl vent system |
US5054130A (en) * | 1990-05-21 | 1991-10-08 | Wilson Thomas R | Toilet deodorizing device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7162751B2 (en) | 2003-04-17 | 2007-01-16 | Mundt Fred S | Ventilated toilet system |
EP1930511A3 (fr) * | 2006-11-22 | 2015-06-10 | Eureka- Concept S.P.R.L | Cuvette de WC |
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