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WO1988006661A1 - Toilettes a aeration amelioree - Google Patents

Toilettes a aeration amelioree Download PDF

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Publication number
WO1988006661A1
WO1988006661A1 PCT/US1988/000655 US8800655W WO8806661A1 WO 1988006661 A1 WO1988006661 A1 WO 1988006661A1 US 8800655 W US8800655 W US 8800655W WO 8806661 A1 WO8806661 A1 WO 8806661A1
Authority
WO
WIPO (PCT)
Prior art keywords
toilet
ventilation
passageway
ventilation blower
ventilating
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US1988/000655
Other languages
English (en)
Inventor
Karl S. Ratanangsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1988006661A1 publication Critical patent/WO1988006661A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • E03D9/052—Special arrangement or operation of ventilating devices ventilating the bowl using incorporated fans

Definitions

  • the present invention relates generally to ventilating toilets and, more particularly, to an improved ventilating toilet having an integral system for ventilating offensive odors.
  • a common means of ventilating a bathroom is by using vents and fans in the ceiling or wall to carry contaminated air from the room. .
  • This ventilating means presents numerous disadvantages.
  • a large quantity of heated or air-conditioned air is removed which must be replaced.
  • the fans are typically noisy. When and how long the venting fans will run is not automatically controlled. Installation and modification of the bathroom to install such ventilating means is difficult, can leave unattractive results and is relatively expensive.
  • Various types of ventilation systems have been proposed to retrofit or otherwise incorporate in toilets themselves. Examples of these systems are disclosed in the following U.S. patents:
  • the motor may be located inside the toilet tank, externally near the toilet, or within an adjacent wall.
  • a ventilating toilet overcoming at least some of these problems is shown and described in U.S. Patent No. 3,120,006, in which a blower assembly is positioned within the toilet body behind the toilet bowl, between the toilet seat and the tank.
  • the blower is housed in a chamber which communicates between openings in the rim of the toilet bowl and the drain line by way of an air duct formed within the back side of the toilet.
  • This prior ventilating toilet suffers from the disadvantages, however, that a person sitting on the toilet would at most be only inches from the chamber containing the blower motor, with its attendant noise and vibration.
  • the space available in a conventional toilet for housing a blower at the top of the toilet bowl between the toilet seat and the tank is very limited.
  • the toilet body either must be enlarged to accommodate a larger blower motor, making the toilet less desirable, especially where space is at a premium, or else a smaller, noisier, less efficient and usually more expensive motor must be utilized.
  • a further . disadvantage is that the water intake to the toilet from a tank or other source is typically located at the top rear of the toilet bowl, and so to also accommodate a blower assembly in this part of the toilet may necessitate restricting the water intake, thereby reducing the flushing efficiency of the toilet.
  • the present invention provides a novel ventilating toilet with an integrally-housed ventilation blower means for removing contaminated air from the toilet bowl and expelling the contaminated air through a standard drain line, in which the ventilation blower means is advantageously located within the toilet body so as to minimize unwanted noise and vibration, to avoid interference with the water intake, and to permit use of an adequately large capacity blower motor to ensure proper ventilation without enlarging the overall size of the toilet body as compared to conventional non-ventilating toilets.
  • the ventilating toilet of the present invention includes a toilet body having a toilet bowl portion with an integral toilet bowl rim formed with one or more ventilation openings. Contaminated air is removed from the toilet bowl through the use of a ventilation blower disposed within a blower compartment formed entirely within the front portion of a housing base portion of the toilet body, generally beneath the toilet bowl portion. The contaminated air is drawn through the ventilation openings in the toilet bowl rim to the ventilation blower by way of a ventilation passageway which also is integrally formed within the front part of the toilet body, away from the water intake to the toilet.
  • An opening between the blower compartment and the main waste passageway of the toilet body allows the ventilation blower to blow contaminated air drawn from the toilet bowl into the waste passageway for venting through the drain vent of a conventional drain line to which the toilet is adapted to be connected.
  • the ventilation blower is designed " to be selectively energized as by raising and lowering of the toilet seat.
  • the ventilating system is entirely integral with the plumbing system of the toilet in that the toilet's own main waste passageway is used, in effect, as an exhaust vent so that the toilet appears substantially the same as a standard toilet.
  • locating the exhaust blower means within a compartment formed in the base portion of the toilet body utilizes what would otherwise be substantially wasted space in a conventional toilet design.
  • Such positioning of the blower means allows for a generally large, efficient blower with a substantial cubic-feet-per-minute capacity to be utilized, resulting in rapid ventilation of contaminated air from the bowl.
  • noise and vibration of the exhaust blower means are dampened substantially by locating the blower means low within the base portion of the toilet body.
  • the invention is easy to install, convenient to use, relatively inexpensive to manufacture and aesthetically pleasing as one integral ' unit.
  • the ventilating toilet incorporates a novel damper means at the exhaust output of the ventilation blower to not only prevent sewer gases in the drain line from infiltrating the room by back flow through the ventilating passageways in the toilet, but also to prevent unwanted fluids, resulting, for example, from a drain line blockage, from possibly causing damage to the ventilation blower or an electrical short.
  • FIG. 1 is a cross-sectional view showing a presently preferred embodiment of a ventilating toilet embodying the principles of the invention
  • FIG. 2 is a generally schematic front view of the ventilating toilet - of FIG. 1, illustrating the location and spatial relationship of the ventilation blower means and the input passageway from the toilet bowl rim to the ventilation blower means;
  • FIG. 3 is an enlarged exploded view of the details of the damper means and its interconnection with the ventilation blower as embodied in the ventilating toilet of FIG. 1.
  • the ventilating toilet includes a toilet body 1 having an oval toilet bowl portion and an integrally-formed housing base portion serving as a base for the toilet bowl portion.
  • a conventional toilet lid 2 and a toilet seat 3 are mounted by a hinged connection 4 to the top of the toilet body 1 at the rear of the toilet bowl portion.
  • the toilet body also conventionally includes a water intake opening 5, located at the top rear portion of the toilet body 1, which communicates with the interior 6 of the toilet bowl via a water passageway 7 through water openings 8 formed in the rim of the toilet bowl portion and a water hole 9 to discharge water for purposes of flushing solid and liquid waste from a water reservoir 10 into a waste passageway 11.
  • Any suitable source of water such as a conventional toilet tank (not shown) , may be connected to the water intake opening 5 to provide the water necessary for flushing.
  • the toilet base portion of the toilet body 1 is shown resting on a floor 12 and connected to a conventional drain line 13 by mounting bolts 14.
  • the drain line 13 is connected to a split connector 15, which includes a drain vent 16 that leads to the open atmosphere to vent odors and gases in the drain system.
  • Gaseous odors are emitted from the human body generally at or near body temperature and at greater than atmospheric pressure. These odors consequently will rapidly expand and spread throughout the interior of the toilet bowl and, unless controlled, will escape through the spaces between the toilet bowl rim and the
  • Ventilation passageway 17 in the toilet body which communicates with the interior 6 of the toilet bowl via a set of ventilation openings 18 through the toilet bowl rim.
  • the ventilation openings 18 are in the form of a plurality of spaced-apart holes.
  • the ventilation passageway 17 leads via an integrally formed input passageway 19 to a ventilation blower 20 located in a blower compartment 21 formed in the housing base portion of the toilet body 1.
  • the ventilation blower 20 is adapted to draw contaminated air 22 from the interior 6 of the toilet bowl and to discharge the contaminated air through a damper tube 23 (described in detail below in connection with FIG. 3) into the drain line 13.
  • the ventilation blower 20 which is of standard design including a blower motor 24 and a blower fan 25 (FIG. 3) , resides on a base 26 that is secured to the floor of the blower compartment 21 by mounting screws 27. It is energized through a power cord comprising two electrical lines 28 and 29 leading to a standard electrical plug 30, which is shown plugged into an electrical supply outlet 31. In normal operation, the ventilation blower 20 is switched “on” and “off” automatically by the raising and lowering, respectively, of the toilet lid 2.
  • a normally closed or “on” push button switch 32 which is connected into one of the electrical power lines 28 and is appropriately mounted on the toilet lid 2 near its hinged connection 4 with the toilet seat 3 so that closing the toilet lid causes the button to be pushed to the "off” position.
  • An opening 33 in one side wall of the housing base portion of the toilet body 1 (FIG. 2) provides access to the blower compartment. The opening 33 is adapted to receive a removable closure (not shown) .
  • the ventilation blower 20 is sufficiently powerful with a substantial cubic-feet-per-minute (“CFM”) capacity.
  • CFM cubic-feet-per-minute
  • An important advantage of the present invention in this regard is that the blower compartment 21 is formed at the front of the housing base portion of the toilet body 1, generally underneath the toilet bowl portion. Persons of skill in this field will appreciate that this space is otherwise unused in a conventional toilet design. It provides a large enough space to accommodate a standard commercially-available ventilation blower of upwards of 70 CFM, which provides adequate capacity.
  • Locating the ventilation blower within the housing base portion beneath the toilet bowl is a significant advantage of the present invention in that it allows the toilet to retain the same overall size and appearance as a conventional toilet.
  • a further advantage of this location is that it is relatively far removed from the toilet seat, and so excess noise and vibrations which may be disturbing to persons using the toilet are greatly dampened.
  • the ventilation passageway 17 and the input passageway 19 for the passage of contaminated air from the toilet bowl to the ventilation blower 20 are disposed- within the toilet body so as not to restrict or otherwise interfere with the water intake 5 and water passageway 7.
  • the input passageway 19 is located at the front of the toilet body 1, as far from the water intake 5 as possible.
  • the input passageway 19 extends vertically along the center-line of the toilet bowl in the preferred embodiment and joins the diverging segments of the ventilation passageway 17 that extend in both directions along the toilet bowl rim.
  • the combined cross-sectional areas of these diverging segments of the ventilation passageway 17, as well as those of the ventilation openings 18, are substantially ,the same as the cross-sectional area of the input passageway 19.
  • the cross-sectional area of the input passageway is substantially the same as the cross-sectional area of the output passageway from the ventilation blower 20.
  • damper system which is connected to the output of the ventilation blower 20
  • Another purpose of the damper system is to prevent unwanted fluids, which may result, for example, from blockages in the drain line, from reaching the ventilation blower 20, where such fluids could cause damage to the blower and risk of electrical shorts.
  • the primary component of the damper system is the damper tube 23, which is disposed within a damper chamber 34 formed in the housing base portion of the toilet body 1 between the blower compartment 21 and the waste passageway 11.
  • the damper chamber 34 and the blower compartment 21 are separated by a wall 35 having an enlarged round opening therethrough spaced above the floor of the damper chamber.
  • the damper chamber 34 has a similarly-sized opening through to the waste passageway 11 which is located at floor level, i.e. , below the level of the opening between the damper chamber and the blower compartment 21.
  • the housing of the ventilation blower 20 surrounding the blower fan 25 is fitted at its exhaust output with an adapter 36 having a passageway formed therethrough which is provided with internal threads.
  • a generally cylindrical output connector 37 serves to join the damper tube 23 to the blower adapter 36.
  • the output connector 37 is provided with external threads to threadedly mate with the adapter 36 through the opening in the damper chamber wall 35.
  • An annular flange or collar 38 that is formed around the output connector 37 serves to sealingly engage the damper chamber wall 35.
  • Affixed to the opposite side of the annular flange 38, as by adhesive, is a length of spring tube 39.
  • the open end of the spring tube 39 is covered by a screen plate 40, and the damper tube 23 is received over the end of the spring tube.
  • damper tube 23 To enable the damper tube 23 to perform the function of either a water damper or an air damper as conditions
  • the damper tube is formed with a relatively thick layer of elastic material on its lower half 41 and a relatively thin layer of elastic material on its upper half 42.
  • Any suitably durable elastomer having the property of floating in water may be chosen as the
  • float ring 43 suitably held at the free end of the damper tube 23, which may be formed by simply rolling over and fixing the end of the damper tube.
  • the float ring 43 In normal operation, when there is no water Q or sewage backed up in the drain line 13, the float ring 43 provides weight sufficient to drop the free end of the damper tube 23 to the bottom of the damper chamber 34. It will be appreciated that, in this position, the damper tube 23 has a downward slope 5 tending to prevent passing water, as during flushing of the toilet, from entering the tube.
  • the force of the air blown by the ventilating blower 20 (when in operation) is sufficient to lift the thin upper half 42 of the damper tube 23, thereby generally 0 aligning the float ring 43 with the opening in the damper chamber 34 through to the waste passageway 11, to permit exhaustion of air to the drain line 13 as shown in FIG. 1.
  • the damper tube 23 collapses to prevent back flow of sewer gases into the ventilation passages of the toilet.
  • the ventilating toilet includes means for disabling the electrical power connection to the blower motor 24 as fluid fills the damper chamber 34.
  • a breaker switch 44 with a spring-loaded arm 45 is mounted adjacent to the ventilation blower 20 within the blower compartment 20.
  • the breaker switch 44 is electrically connected in series in the power line 28 leading to the blower motor 24. This electrical connection can be formed Within a water tight seal.
  • a cord 46 extends from the arm 45 through a hole 47 in the housing of the ventilation blower 20 and then along the inside of the output connector 37 and through the spring tube 39 for connection to the screen plate 40.
  • the cord 46 is installed in taut condition such that in normal operation of the ventilating system of the toilet the cord pulls the arm 45 to maintain breaker switch 44 in a normally closed or "on" state.
  • the spring tube 39 When fluid backs up into the damper chamber 34, the spring tube 39 is designed to compress in response to the pressure applied by the lower half 41 of the damper tube 23 against the screen plate 40. The compression of the spring tube 39 causes it to shorten and hence reduce the tautness of the cord 46. As the cord 46 relaxes, the spring-loaded arm 45 of the breaker switch 44 is permitted to move to an open or "off" position, disconnecting electrical power from the blower motor 24. It will be appreciated that the blower motor 24 is thus disabled regardless of whether the toilet lid is raised. When the fluid recedes from the damper chamber 34, the damper tube 23 will relax and fall, permitting the spring tube 40 to extend and pulling the cord 46 taut again. The breaker switch 44 will thus be returned to its normally closed condition.
  • the opening of breaker switch 44 could also be utilized to trigger an appropriate aural or visual alarm (not shown) to signal that the ventilation system of the toilet has been automatically disabled by probable reason of a clogged drain line. The user would then be warned to take appropriate steps, including possibly disconnecting the electrical plug 30 from the electrical supply outlet 31.
  • the new and improved ventilating toilet of the present invention satisfies a long existing need for a relatively simple, safe, economical and effective ventilating system in a toilet which is easy to install without modification to the existing plumbing or surrounding structure and which does not require any added space compared to conventional toilet designs.

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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)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)

Abstract

Toilettes aérées comprenant un système d'aération totalement intégral avec la plomberie des toilettes servant à évacuer l'air contaminé de la cuvette (1) des toilettes. Un ventilateur aspirant (20) est situé dans un compartiment formé dans le socle du corps des toilettes, généralement devant et sous la cuvette des toilettes. L'air contaminé est aspiré par le ventilateur aspirant (20) par des orifices d'aération (18) formés dans le bord de la cuve des toilettes, en passant par un passage d'aération (19) intégralement formé dans la partie antérieure du corps des toilettes, puis le ventilateur aspirant (20) expulse l'air contaminé à travers une ouverture vers le passage d'évacuation des toilettes afin que l'air s'échappe par l'orifice d'aération (16) d'une canalisation d'égout conventionnelle (13). Un amortisseur (23) est agencé à la sortie d'évacuation du ventilateur aspirant (20) pour empêcher l'écoulement en retour des gaz des égouts par le système d'aération et l'infiltration de fluides dans le ventilateur aspirant provoquée par des blocages des canalisations d'égout ou similaires. Le ventilateur aspirant (20) est sélectivement actionné lorsque l'on soulève ou l'on baisse le siège (3) des toilettes.
PCT/US1988/000655 1987-03-03 1988-03-03 Toilettes a aeration amelioree Ceased WO1988006661A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2124087A 1987-03-03 1987-03-03
US021,240 1987-03-03

Publications (1)

Publication Number Publication Date
WO1988006661A1 true WO1988006661A1 (fr) 1988-09-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1988/000655 Ceased WO1988006661A1 (fr) 1987-03-03 1988-03-03 Toilettes a aeration amelioree

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AU (1) AU1490288A (fr)
WO (1) WO1988006661A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5210884A (en) * 1990-08-20 1993-05-18 Redford Daniel S Environmentally controlled toilet
DE4217227A1 (de) * 1992-05-20 1993-11-25 Ku Liang Yi Verfahren zur Herstellung eines Toilettenbeckens
US5305473A (en) * 1991-03-29 1994-04-26 Inax Corporation Urinal having a smell release function
FR2876717A1 (fr) * 2004-10-14 2006-04-21 Tereso Gonzalez Dispositif totalement integre a la cuvette des wc assurant les fonctions d'extraction et d'evacuation des mauvaises odeurs
SG120871A1 (en) * 2002-06-17 2006-04-26 Tan Choon Wang Odourless system
GB2444057A (en) * 2006-11-23 2008-05-28 Geoffrey John Weavell Odourless toilet
WO2021030771A1 (fr) * 2019-08-15 2021-02-18 Akmal Payziev Système de ventilation de toilettes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1972774A (en) * 1932-06-25 1934-09-04 Hartwell Harold Edward Closet
US3120006A (en) * 1960-08-01 1964-02-04 Knappe Siegfried Toilet bowl and bathroom ventilating system
US3805304A (en) * 1971-07-01 1974-04-23 N Ikehata Ventilating toilet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1972774A (en) * 1932-06-25 1934-09-04 Hartwell Harold Edward Closet
US3120006A (en) * 1960-08-01 1964-02-04 Knappe Siegfried Toilet bowl and bathroom ventilating system
US3805304A (en) * 1971-07-01 1974-04-23 N Ikehata Ventilating toilet

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5210884A (en) * 1990-08-20 1993-05-18 Redford Daniel S Environmentally controlled toilet
US5305473A (en) * 1991-03-29 1994-04-26 Inax Corporation Urinal having a smell release function
DE4217227A1 (de) * 1992-05-20 1993-11-25 Ku Liang Yi Verfahren zur Herstellung eines Toilettenbeckens
SG120871A1 (en) * 2002-06-17 2006-04-26 Tan Choon Wang Odourless system
FR2876717A1 (fr) * 2004-10-14 2006-04-21 Tereso Gonzalez Dispositif totalement integre a la cuvette des wc assurant les fonctions d'extraction et d'evacuation des mauvaises odeurs
GB2444057A (en) * 2006-11-23 2008-05-28 Geoffrey John Weavell Odourless toilet
WO2021030771A1 (fr) * 2019-08-15 2021-02-18 Akmal Payziev Système de ventilation de toilettes
EP4013917A4 (fr) * 2019-08-15 2023-11-29 Akmal Payziev Système de ventilation de toilettes

Also Published As

Publication number Publication date
AU1490288A (en) 1988-09-26

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