GB2286976A - Toilet bowl air filter - Google Patents

Toilet bowl air filter Download PDF

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Publication number
GB2286976A
GB2286976A GB9504496A GB9504496A GB2286976A GB 2286976 A GB2286976 A GB 2286976A GB 9504496 A GB9504496 A GB 9504496A GB 9504496 A GB9504496 A GB 9504496A GB 2286976 A GB2286976 A GB 2286976A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
air
chamber
filtering apparatus
toilet bowl
apparatus according
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.)
Withdrawn
Application number
GB9504496A
Other versions
GB9504496D0 (en )
Inventor
Alistair Macdonald
Original Assignee
Alistair Macdonald
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

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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/04Special arrangement or operation of ventilating devices
    • E03D9/05Special arrangement or operation of ventilating devices ventilating the bowl
    • E03D9/052Special arrangement or operation of ventilating devices ventilating the bowl using incorporated fans

Abstract

An air filter for a toilet bowl comprises a rechargeable vacuum cleaner 1 mounted on wall support 2. The vacuum cleaner includes a filter chamber 4 filled with activated carbon 8 having an outlet 6 to atmosphere covered by a filter screen 7. Air is drawn through the filter chamber by motorised extractor fan 5 having power supplied either by a low voltage rechargeable battery or by the mains 14. The filter chamber is connected to a conduit 12 having a nozzle 13 located in the gap between the toilet bowl and seat. <IMAGE>

Description

"Air Filterina Apparatus" The invention relates to air filtering apparatus.

A common problem in toilets is ensuring that the air stays fresh.

Various solutions have been proposed to this problem which include installation of extractor fans in toilets to extract air from the toilets and also the use of air fresheners to help absorb smells in a toilet.

However, these previous solutions have only been partially successful in overcoming the problem of smells in toilets.

In accordance with the present invention, air filtering apparatus comprises a chamber containing a filtering medium, the chamber having an inlet and an outlet, means coupled to the outlet for extracting air from the chamber through the outlet, and a conduit coupled at one end to the inlet of the chamber, the other end of the conduit being adapted to be coupled to a toilet bowl.

Preferably, the filtering medium in the chamber may be an absorption or adsorption medium, and is typically activated carbon.

Preferably, air is extracted from the chamber at a sufficiently high rate to cause air to enter the filtering chamber through the conduit coupled to the inlet.

Typically, the means for extracting air from the filter chamber may comprise a fan driven by a motor, such as an electric motor.

Preferably, the electric motor operates on a low voltage which may typically, be less than 100 volts and preferably, the voltage of the electric motor is safe for use in bathrooms. Typically, the motor may be powered by batteries.

Examples of air filtering apparatus in accordance with the invention will now be described with reference to the accompanying drawings, in which: Fig. 1 is a side view of a first example of filter apparatus when mounted on a wall; Fig. 2 is a front view of the apparatus shown in Fig. 1; and, Fig. 3 is cross-sectional view of a second example of filter apparatus.

Fig. 1 shows a first example of air filtering apparatus 1 which comprises a wall mounted support 2 which is mounted on a wall 3. Located on the wall mounted support 2 is a cordless vacuum cleaner which includes a chamber 4 which is coupled to an electric motor 5 by an outlet 6. The opening to the outlet 6 in the chamber 4 is covered by a porous filter screen 7. The chamber 4 is filled with a filtering medium 8, which in this example is activated carbon.

As shown in Fig. 2, an inlet 9 enters the chamber 4 through a side wall and has a screen 10 fixed to its inner end to prevent the activated carbon 8 entering the inlet 9. Coupled to the outside end of the inlet 9 is a flexible conduit 12 and the other end of the flexible conduit 12 is coupled to a nozzle 13 (see Fig.

1).

The electric motor 5 is coupled to an electric power supply via a power cable 14. Typically, the power supply is a standard mains voltage power supply and may include a transformer to reduce the voltage of the electric supply before being supplied to the electric motor 5 via the power cable 14.

Preferably, the apparatus 1 may comprise a conventional re-chargeable vacuum cleaner with the normal nozzle blocked off and a hole cut in the chamber 4 to accept the inlet 10, and a flexible conduit 12 and nozzle 13 coupled to the inlet 10. The apparatus 1 may then be operated using rechargeable batteries or may be wired via a transformer to a conventional mains power supply.

Such an arrangement provides sufficient suction through the conduit 12 that if the nozzle 13 is located adjacent to a toilet bowl, such as in the gap between the toilet bowl and the toilet seat, air will be extracted from the toilet bowl. The extracted air enters the chamber 4 and passes through the activated carbon 8 which removes any smells from the air, prior to being discharged into the atmosphere via the outlet 6.

Fig. 3 shows a second example of air filtering apparatus 20 which comprises a conduit 21 coupled to a filter chamber 22. A fan 23 is located on the opposite side of the filter chamber 22 to the conduit 21. The filter chamber 22 contains a purifying medium which is typically activated carbon granules. Possible dimensions of the apparatus 20 are indicated in Fig. 3.

The conduit 21 comprises a funnel shaped section 24 and the wider section of the funnel section is coupled to the filter chamber 22. The narrower section of the funnel section 24 is bent into a "U" shaped section 26 and has a nozzle 25. The "U" shaped section 26 is configured so that it hooks over the rim of a toilet bowl (not shown). The "U" shaped section may be deformable to permit it to clip on to the rim of a toilet bowl so that it is retained in position.

The fan 23 is powered by an electric motor (not shown) which may be powered by any conventional electric supply. However, the motor is preferably powered by batteries, which may be rechargeable. This would permit the apparatus 20 to be portable.

Such an arrangement provides sufficient suction through the conduit 21 that if the "U" shaped section 26 is hooked over the rim of a toilet bowl such that nozzle 25 is projecting into the toilet bowl, air will be extracted from the toilet bowl. The extracted air enters the filter chamber 22 and passes through the activated carbon which removes any smells from the air, prior to being discharged into the atmosphere via the fan 23.

Modifications and improvements may be incorporated without departing from the scope of the invention.

Claims (8)

Claims
1. Air filtering apparatus comprising a chamber containing a filtering medium, the chamber having an inlet and an outlet, means coupled to the outlet for extracting air from the chamber through the outlet, and a conduit coupled at one end to the inlet of the chamber, the other end of the conduit being adapted to be coupled to a toilet bowl.
2. Air filtering apparatus according to claim 1, wherein the filtering medium in the chamber is an absorption or adsorption medium.
3. Air filtering apparatus according to claim 2, wherein the medium is activated carbon.
4. Air filtering apparatus according to any of the preceding claims, wherein the means for extracting air from the filter chamber may comprise a fan driven by a motor.
5. Air filtering apparatus according to claim 4, wherein the motor is an electric motor.
6. Air filtering apparatus according to claim 5, wherein the electric motor operates on a low voltage power supply.
7. Air filtering apparatus according to claim 6, wherein the low voltage power supply is less than 100 volts.
8. Air filtering apparatus according to claim 7, wherein the power supply comprises a battery.
GB9504496A 1994-03-05 1995-03-06 Air filtering apparatus Withdrawn GB9504496D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9404274A GB9404274D0 (en) 1994-03-05 1994-03-05 Air filtering apparatus
GB9504496A GB9504496D0 (en) 1994-03-05 1995-03-06 Air filtering apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9504496A GB9504496D0 (en) 1994-03-05 1995-03-06 Air filtering apparatus

Publications (2)

Publication Number Publication Date
GB9504496D0 GB9504496D0 (en) 1995-04-26
GB2286976A true true GB2286976A (en) 1995-09-06

Family

ID=26304439

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9504496A Withdrawn GB9504496D0 (en) 1994-03-05 1995-03-06 Air filtering apparatus

Country Status (1)

Country Link
GB (1) GB9504496D0 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2305137A (en) * 1995-09-15 1997-04-02 Eurofilters Ltd Portable filter for removal of mercury vapours from air
ES2154964A1 (en) * 1997-12-22 2001-04-16 Benavente Salustiano Romero Active air purifier for toilets.
GB2389374A (en) * 2002-06-06 2003-12-10 Neil Alexander Williams Toilet ventilator

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1214859A (en) * 1967-08-10 1970-12-09 Robin Harry Stamper Toilet bowl ventilation
US4317242A (en) * 1978-09-29 1982-03-02 Stamper Robin H Device for the removal of foul air from toilet bowls and the like
GB2136030A (en) * 1983-02-25 1984-09-12 Chan Soong Hoi Ventilating water closet pans
US4586201A (en) * 1984-05-14 1986-05-06 Todd Jr Ray R Toilet air purifier apparatus
GB2202556A (en) * 1987-03-21 1988-09-28 Derek Crabb Lavatory odour extractor
EP0289696A1 (en) * 1987-05-08 1988-11-09 Nevio Savorani Aspirator-deodorizer device for water-closets
US4853981A (en) * 1986-03-14 1989-08-08 Hunnicutt Jr Clyde J Ventilated water closet
EP0526077A1 (en) * 1991-07-22 1993-02-03 Takeda Chemical Industries, Ltd. Activated carbon honeycombs and applications thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1214859A (en) * 1967-08-10 1970-12-09 Robin Harry Stamper Toilet bowl ventilation
US4317242A (en) * 1978-09-29 1982-03-02 Stamper Robin H Device for the removal of foul air from toilet bowls and the like
GB2136030A (en) * 1983-02-25 1984-09-12 Chan Soong Hoi Ventilating water closet pans
US4586201A (en) * 1984-05-14 1986-05-06 Todd Jr Ray R Toilet air purifier apparatus
US4853981A (en) * 1986-03-14 1989-08-08 Hunnicutt Jr Clyde J Ventilated water closet
GB2202556A (en) * 1987-03-21 1988-09-28 Derek Crabb Lavatory odour extractor
EP0289696A1 (en) * 1987-05-08 1988-11-09 Nevio Savorani Aspirator-deodorizer device for water-closets
EP0526077A1 (en) * 1991-07-22 1993-02-03 Takeda Chemical Industries, Ltd. Activated carbon honeycombs and applications thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2305137A (en) * 1995-09-15 1997-04-02 Eurofilters Ltd Portable filter for removal of mercury vapours from air
ES2154964A1 (en) * 1997-12-22 2001-04-16 Benavente Salustiano Romero Active air purifier for toilets.
GB2389374A (en) * 2002-06-06 2003-12-10 Neil Alexander Williams Toilet ventilator

Also Published As

Publication number Publication date Type
GB9504496D0 (en) 1995-04-26 grant

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)