CA1252255A - Ventilated toilet - Google Patents
Ventilated toiletInfo
- Publication number
- CA1252255A CA1252255A CA000566273A CA566273A CA1252255A CA 1252255 A CA1252255 A CA 1252255A CA 000566273 A CA000566273 A CA 000566273A CA 566273 A CA566273 A CA 566273A CA 1252255 A CA1252255 A CA 1252255A
- Authority
- CA
- Canada
- Prior art keywords
- lugs
- toilet bowl
- chamber
- toilet
- slot
- 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.)
- Expired
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
- E03D9/052—Special arrangement or operation of ventilating devices ventilating the bowl using incorporated fans
Landscapes
- 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)
- Toilet Supplies (AREA)
Abstract
ABSTRACT
Toilet bowl ventilating apparatus is described in which the bowl is ventilated automatically in response to the weight of a user sitting on the seat. This is achieved by locating a resilient pressure switch on the underside of the seat which when closed by the user's weight, actuates an extraction fan which draws gases from the toilet bowl through a vapour inlet device located at the rear of the toilet seat and bowl, and through flexible conduits to a vent pipe where the gases are eventually discharged to atmosphere. The vapour inlet device is secured to the toilet bowl via the seat bolts and has a low profile. The apparatus is suitable for domestic use with a conventional electrical supply or for field use where no a.c.
supply is present.
Toilet bowl ventilating apparatus is described in which the bowl is ventilated automatically in response to the weight of a user sitting on the seat. This is achieved by locating a resilient pressure switch on the underside of the seat which when closed by the user's weight, actuates an extraction fan which draws gases from the toilet bowl through a vapour inlet device located at the rear of the toilet seat and bowl, and through flexible conduits to a vent pipe where the gases are eventually discharged to atmosphere. The vapour inlet device is secured to the toilet bowl via the seat bolts and has a low profile. The apparatus is suitable for domestic use with a conventional electrical supply or for field use where no a.c.
supply is present.
Description
~ ~ VE~TILATED TOILET 1~S~55 The present invention relates to toilet bowl ~ ventilating apparatus and particularly to apparatu~ in which the f toilet bowl is vented automatically in response to the weight of a user.
Toilet bowl ventilating apparatus are known in the prior art, however these prior art arrangements are complex, expensive and invariably require substantial modification to be carried out to the toilet bowl assembly and the plumbing associated therewith for in~tallation.
An object of the present invention is to obviate or mitigate the abovesaid disadvantages.
According to a first aspect of the present invention there is provided toilet bowl venti~lating apparatus comprising inlet means adapted to be located at the rear o the toilet seat and the toilet bowl and supported on the toilet bowl, conduit means connected between the inlet means and atmosyhere, resilient switch means locatable between the toilet bowl and the toilet seat, said resilient pressure switch means belng connected to air extraction means, the resilient pressure switch being responsive to the weight of the user and permitting power to be supplied to the air extraction means whereby actuation of the air extraction means causes gases to be extracted from the toilet bowl through the inlet means and conduit ~neans and to be vented to atmosphere. ~ ~
Preferably, the conduit means includes a flexible hose, . said flexible hoses being connected to an outlet of the inlet ~ means. ~ 1 252255 r Preferably also, the inlet means has two flange portions with apertures, through which bolts of the toilet seat hinge assembly pass, the bolts co-operating with fastening means to permit the inlet means to be secured to the toilet bowl.
According to a second aspect of the present invention there is provided inlet means for use with toilet ventilating apparatus, the inlet means being adapted to be located at the rear of the toilet bowl and a toilet seat, the rear of the toilet seat and the toilet bowl defining a space therebetween, the inLet having an opening which, in use, is at the space, means by which i'~ is secured at said location, a chamber communicating with the opening and with outlet parts located on opposite lateral sides of the opening, the outlet parts being adapted to be connected to conduit means whereby, in use, gases from the toilet bowl are drawn through said opening and pass through said chamber and exit by the outlet ports into said conduits.
- Embodiments of the present invention will now bë ~
described by way of example with reference to the accompanying drawings in which:
FIG. 1 is perspective schèmatic view of a water closet with the toilet ventilatlng apparatus installed;
FIG. 2 is an enlarged and more detailed view of the suction intake member shown in Fig. l; and ~
FIG. 3 is a perspective schematic view similar to Fig.
~;; 1 but illustrating a different conduit arrangement for removing ~ gases from~the toilet bowl. ~2S2Z55 Referring now to Figs. 1 and 2 of the drawings a toilet bowl 10 has a pedestal base which is mounted on a supporting surface, which is a floor 14. The toilet bowl 10 is adapted to be connected to a seat 16,which has a ~over 17,by hinge member 18. The hinge member 18 includes threaded rods 20 on either side of the hinge which are adapted to pass through apertures 22 in the toilet bowl. A plas~ic suction intake member,generally indicated by numeral 24,has flanges 26 with apertures 28 and locatable on the toilet bowl 10 such that the apertures 28 reyister with the apertures 22 o~ the toilet bowl. The threaded rods 20 are passed through apertures 28 and 22 and are engaged on the other side of the toilet bowl by wing nuts 30 th~reby securing the seat 16 to the bowl 10 and effectively retaining the suction intake member 24 at the rear of the toilet bowl 10.
The suction intake member 24 has an inlet opening 32 which leads into an interior chamber 33. The interior chamber 33 communicates with exit ports 34 on either side of the suction intake member 24, each exit port 34 leading into a elbow 36.
Each elbow 36 is connected by respective ones of sections of pipe 37 which extend beneath the water tank 38 to elbow joints 39. Flexible plastic hoses 40 are connected to a respective one of the.joints 39 and~the hoses are joined at the other end by a plastic T-piece 42 which extends through the floor 14 and is attached to an ABS plastic conduit 44 which i~ connec~ed to one inlet of an extractor fan 48. The other side of the extractor fan 58 is connected to an outside vent 59. The extxactor fan 48 J takes power from a light switch 50 via a step down relay 52. A
resilient pressure switch 54 located underneath the seat 16 i~ ~ S ~Z 5 also connected to the relay 52. In use, when the weight of a user is on the seat the switch contacts close completing the electrical circuit in the relay 52 and thus permitting power to be provided to the extractor fan 48 which then causes gases within the toilet bowl to be drawn through the inlet opening 32 and into chamber 33 and through the elbows 34, pipes 37, elbow 39, flexible hoses 42 to the conduit 44 and finally through the conduit 58 to the outsiae vent 59. The power to the extractor fan is supplied only as long as the switch contacts are closed, that is, only as long as the user is seated on the toilet bowl.
When the user rises from the seat, the resilience o~ the switch 54~forces the switch contacts open disconnecting the supply to the extraction fan 48.
~:
In the embodiment referred to in Fig. 3 the apparatus and operation is the same as the first embodiment except for the passage of the yases from the toilet bowl. In this embodiment - the conduit 44 extends up behind a wall 46 and into the extraction fan 48. The other side 48a is connected to a vent pipe 60 which serves as the vent pipe also for the waste pipe 62 from the toilet bowl 10. Power to the extractor fan and the ~ :
; ~ operation of switch 54 is carried out in exactly the same way as ~ ~or the first embodiment. ~ ~ ~
Various ~odifications may be made to the embodiement described without departing from the scope of the inventl4n.
For example power can be taken from any domestic supply. In the apparatus the extractor fan can al50 be batt.ery driven, thus it is suitable for field use where normal a.c. supply is unavailable. The plum~ing arrangement for the flexible conduits could be modified to suit any type of installation. And the suction intake member, conauits and flexible hoses may be made of any suitable material. The extractor fan 48 could be actuated by way of an independent electrical circuit or via the light switch at the option of the installer.
Advantages of the invéntion are that it is very inexpensive to produce and since it is simple and involves ~inimum components, the apparatus is made oE plastic, is non-corrosive ancl can be easily colour matched to ma~ch the toilet decor, it is simple to install and the flexible hoses permit unlversality of installation. The low profile of the suction intake member is not only functionally efficient in receiving and removing gases as the opening is in close proximity to the source of the odors but it is also aesthetic in appearance. Consequently the apparatus is very efficient in extracting the noxious gases. No plumbing modifications are required to the basic household water closet in contrast to prior art devices. The resilience of the pressura switch is such t~at a predetermined weiyht, for example 15 pounds, is required to~activate the~fan so that when the toilet seat and covéx~are in the down posit~ion it will not be continuously on.
2i~SSi low voltage power supply is used for saftey reasons due to the proximity of water and moisture. The double hose system permits ~ central vent dispensing which is convenient for left or right installations, and the simplicity and effectiveness of the construction is such that minimum tools or expertise is re~uired to effect installation.
,.
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Toilet bowl ventilating apparatus are known in the prior art, however these prior art arrangements are complex, expensive and invariably require substantial modification to be carried out to the toilet bowl assembly and the plumbing associated therewith for in~tallation.
An object of the present invention is to obviate or mitigate the abovesaid disadvantages.
According to a first aspect of the present invention there is provided toilet bowl venti~lating apparatus comprising inlet means adapted to be located at the rear o the toilet seat and the toilet bowl and supported on the toilet bowl, conduit means connected between the inlet means and atmosyhere, resilient switch means locatable between the toilet bowl and the toilet seat, said resilient pressure switch means belng connected to air extraction means, the resilient pressure switch being responsive to the weight of the user and permitting power to be supplied to the air extraction means whereby actuation of the air extraction means causes gases to be extracted from the toilet bowl through the inlet means and conduit ~neans and to be vented to atmosphere. ~ ~
Preferably, the conduit means includes a flexible hose, . said flexible hoses being connected to an outlet of the inlet ~ means. ~ 1 252255 r Preferably also, the inlet means has two flange portions with apertures, through which bolts of the toilet seat hinge assembly pass, the bolts co-operating with fastening means to permit the inlet means to be secured to the toilet bowl.
According to a second aspect of the present invention there is provided inlet means for use with toilet ventilating apparatus, the inlet means being adapted to be located at the rear of the toilet bowl and a toilet seat, the rear of the toilet seat and the toilet bowl defining a space therebetween, the inLet having an opening which, in use, is at the space, means by which i'~ is secured at said location, a chamber communicating with the opening and with outlet parts located on opposite lateral sides of the opening, the outlet parts being adapted to be connected to conduit means whereby, in use, gases from the toilet bowl are drawn through said opening and pass through said chamber and exit by the outlet ports into said conduits.
- Embodiments of the present invention will now bë ~
described by way of example with reference to the accompanying drawings in which:
FIG. 1 is perspective schèmatic view of a water closet with the toilet ventilatlng apparatus installed;
FIG. 2 is an enlarged and more detailed view of the suction intake member shown in Fig. l; and ~
FIG. 3 is a perspective schematic view similar to Fig.
~;; 1 but illustrating a different conduit arrangement for removing ~ gases from~the toilet bowl. ~2S2Z55 Referring now to Figs. 1 and 2 of the drawings a toilet bowl 10 has a pedestal base which is mounted on a supporting surface, which is a floor 14. The toilet bowl 10 is adapted to be connected to a seat 16,which has a ~over 17,by hinge member 18. The hinge member 18 includes threaded rods 20 on either side of the hinge which are adapted to pass through apertures 22 in the toilet bowl. A plas~ic suction intake member,generally indicated by numeral 24,has flanges 26 with apertures 28 and locatable on the toilet bowl 10 such that the apertures 28 reyister with the apertures 22 o~ the toilet bowl. The threaded rods 20 are passed through apertures 28 and 22 and are engaged on the other side of the toilet bowl by wing nuts 30 th~reby securing the seat 16 to the bowl 10 and effectively retaining the suction intake member 24 at the rear of the toilet bowl 10.
The suction intake member 24 has an inlet opening 32 which leads into an interior chamber 33. The interior chamber 33 communicates with exit ports 34 on either side of the suction intake member 24, each exit port 34 leading into a elbow 36.
Each elbow 36 is connected by respective ones of sections of pipe 37 which extend beneath the water tank 38 to elbow joints 39. Flexible plastic hoses 40 are connected to a respective one of the.joints 39 and~the hoses are joined at the other end by a plastic T-piece 42 which extends through the floor 14 and is attached to an ABS plastic conduit 44 which i~ connec~ed to one inlet of an extractor fan 48. The other side of the extractor fan 58 is connected to an outside vent 59. The extxactor fan 48 J takes power from a light switch 50 via a step down relay 52. A
resilient pressure switch 54 located underneath the seat 16 i~ ~ S ~Z 5 also connected to the relay 52. In use, when the weight of a user is on the seat the switch contacts close completing the electrical circuit in the relay 52 and thus permitting power to be provided to the extractor fan 48 which then causes gases within the toilet bowl to be drawn through the inlet opening 32 and into chamber 33 and through the elbows 34, pipes 37, elbow 39, flexible hoses 42 to the conduit 44 and finally through the conduit 58 to the outsiae vent 59. The power to the extractor fan is supplied only as long as the switch contacts are closed, that is, only as long as the user is seated on the toilet bowl.
When the user rises from the seat, the resilience o~ the switch 54~forces the switch contacts open disconnecting the supply to the extraction fan 48.
~:
In the embodiment referred to in Fig. 3 the apparatus and operation is the same as the first embodiment except for the passage of the yases from the toilet bowl. In this embodiment - the conduit 44 extends up behind a wall 46 and into the extraction fan 48. The other side 48a is connected to a vent pipe 60 which serves as the vent pipe also for the waste pipe 62 from the toilet bowl 10. Power to the extractor fan and the ~ :
; ~ operation of switch 54 is carried out in exactly the same way as ~ ~or the first embodiment. ~ ~ ~
Various ~odifications may be made to the embodiement described without departing from the scope of the inventl4n.
For example power can be taken from any domestic supply. In the apparatus the extractor fan can al50 be batt.ery driven, thus it is suitable for field use where normal a.c. supply is unavailable. The plum~ing arrangement for the flexible conduits could be modified to suit any type of installation. And the suction intake member, conauits and flexible hoses may be made of any suitable material. The extractor fan 48 could be actuated by way of an independent electrical circuit or via the light switch at the option of the installer.
Advantages of the invéntion are that it is very inexpensive to produce and since it is simple and involves ~inimum components, the apparatus is made oE plastic, is non-corrosive ancl can be easily colour matched to ma~ch the toilet decor, it is simple to install and the flexible hoses permit unlversality of installation. The low profile of the suction intake member is not only functionally efficient in receiving and removing gases as the opening is in close proximity to the source of the odors but it is also aesthetic in appearance. Consequently the apparatus is very efficient in extracting the noxious gases. No plumbing modifications are required to the basic household water closet in contrast to prior art devices. The resilience of the pressura switch is such t~at a predetermined weiyht, for example 15 pounds, is required to~activate the~fan so that when the toilet seat and covéx~are in the down posit~ion it will not be continuously on.
2i~SSi low voltage power supply is used for saftey reasons due to the proximity of water and moisture. The double hose system permits ~ central vent dispensing which is convenient for left or right installations, and the simplicity and effectiveness of the construction is such that minimum tools or expertise is re~uired to effect installation.
,.
.`:
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, ~ ~ ,, " , ~ ~
Claims (7)
1. Toilet bowl venting apparatus, which:-is adapted to fit to the standard fixing holes of a toilet bowl, and to fit between the rim of the bowl and the seat;
is adapted for use with a fan means for drawing air through the apparatus, the said fan means being located remotely from the apparatus, and being connected to the apparatus via an air duct;
comprises a housing, the walls of which define a hollow chamber;
comprises a pair of lugs, which are formed integrally with the walls of the housing;
comprises respective fixing means, which are suitable for fixing the apparatus to the said standard fixing holes, and which are formed in the said lugs;
comprises an inlet opening into the hollow chamber;
where the inlet opening comprises a slot which is formed in the wall of the chamber, and which, when the apparatus is fixed to the toilet bowl, opens forwards into the toilet bowl;
where the hollow chamber is long in the lateral direction;
where the hollow chamber spans between and extends behind the lugs;
where the slot lies between the lugs and no further forward than a line between the lugs, there being no other opening into the hollow chamber from the toilet bowl apart from the said slot;
and, where the portion of the walls of the chamber, being that portion which lies between the lugs, and which includes the slot, lies in substance well hack towards a line drawn between the respective fixing means in the lugs.
is adapted for use with a fan means for drawing air through the apparatus, the said fan means being located remotely from the apparatus, and being connected to the apparatus via an air duct;
comprises a housing, the walls of which define a hollow chamber;
comprises a pair of lugs, which are formed integrally with the walls of the housing;
comprises respective fixing means, which are suitable for fixing the apparatus to the said standard fixing holes, and which are formed in the said lugs;
comprises an inlet opening into the hollow chamber;
where the inlet opening comprises a slot which is formed in the wall of the chamber, and which, when the apparatus is fixed to the toilet bowl, opens forwards into the toilet bowl;
where the hollow chamber is long in the lateral direction;
where the hollow chamber spans between and extends behind the lugs;
where the slot lies between the lugs and no further forward than a line between the lugs, there being no other opening into the hollow chamber from the toilet bowl apart from the said slot;
and, where the portion of the walls of the chamber, being that portion which lies between the lugs, and which includes the slot, lies in substance well hack towards a line drawn between the respective fixing means in the lugs.
2. Apparatus of claim 1, where the conduit is attached to the housing at an attachment boss;
where the front-to-back dimension of the attachment boss is substantially larger than the front-to-back dimension of the chamber, measured at one of the lugs;
and where the boss lies laterally outside the lugs.
where the front-to-back dimension of the attachment boss is substantially larger than the front-to-back dimension of the chamber, measured at one of the lugs;
and where the boss lies laterally outside the lugs.
3. Apparatus of claim 2, which includes two such bosses, located one each side of the lugs.
4. Apparatus of claim 1, where the slot is in the front wall of the chamber, and is open over substantially the full distance between the lugs.
5. Apparatus of claim 4, where the roof of the chamber is, in substance, no higher than the level of the lid of the toilet.
6. Apparatus of claim 1 where the fixing means comprises respective bolt-receiving holes in the lugs.
7. Apparatus of claim 1, where the fan means is controlled by a switch, and where the switch is actuated by the weight of a person sitting at the toilet bowl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000566273A CA1252255A (en) | 1988-05-09 | 1988-05-09 | Ventilated toilet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000566273A CA1252255A (en) | 1988-05-09 | 1988-05-09 | Ventilated toilet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1252255A true CA1252255A (en) | 1989-04-11 |
Family
ID=4137993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000566273A Expired CA1252255A (en) | 1988-05-09 | 1988-05-09 | Ventilated toilet |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1252255A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992003620A1 (en) * | 1990-08-20 | 1992-03-05 | Redford Daniel S | Environmentally controlled toilet |
| US5199111A (en) * | 1991-09-03 | 1993-04-06 | Antepenko Daniel J | Toilet odor removing apparatus |
| USD377680S (en) | 1995-07-24 | 1997-01-28 | Kimber Warren D | Toilet ventilator |
| WO1997006315A1 (en) * | 1995-08-09 | 1997-02-20 | Allan Maxwell Ingleton | Exhaust device and method |
| GB2597076A (en) * | 2020-07-14 | 2022-01-19 | Andrew Price Paul | A lavatory ventilation device |
-
1988
- 1988-05-09 CA CA000566273A patent/CA1252255A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992003620A1 (en) * | 1990-08-20 | 1992-03-05 | Redford Daniel S | Environmentally controlled toilet |
| US5199111A (en) * | 1991-09-03 | 1993-04-06 | Antepenko Daniel J | Toilet odor removing apparatus |
| USD377680S (en) | 1995-07-24 | 1997-01-28 | Kimber Warren D | Toilet ventilator |
| WO1997006315A1 (en) * | 1995-08-09 | 1997-02-20 | Allan Maxwell Ingleton | Exhaust device and method |
| GB2597076A (en) * | 2020-07-14 | 2022-01-19 | Andrew Price Paul | A lavatory ventilation device |
| GB2597076B (en) * | 2020-07-14 | 2023-02-01 | Andrew Price Paul | A lavatory ventilation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |