GB2343204A

GB2343204A - Toilet bowl ventilation

Info

Publication number: GB2343204A
Application number: GB9823851A
Authority: GB
Inventors: Jonathan Adeyemi Olowu
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-30
Filing date: 1998-10-30
Publication date: 2000-05-03
Also published as: GB9823851D0

Abstract

An extractor toilet seat which provides a convenient means of getting rid of foul odours from in and around the toilet bowl when in use. The seat comprises air ducts (2) on the under surface which lead to a hollow cavity inside the seat. An electrically powered, wall mounted extractor pump (4) provides the suction required via an air hose (3), (which is connected to the pump at one end and the rear of seat at the other), to extract the foul air. The air is sucked into the seat through the air ducts (2) and out of the seat into an air hose (3) through which it travels to the pump (4), where it is jettisoned out of the room via a hole in the wall, located behind the pump. A pressure switch (1) attached to the under surface of the seat activates the pump when the seat is in use and switches the pump off approx. 60 seconds after the pressure is released. Also attached to the under surface of the seat, are rubber cushions which protect the seat from breakage and create a small gap between the seat and the toilet, allowing fresh air to flow freely into the toilet bowl, thus replacing the foul air that has been extracted.

Description

TOILET SEAT The invention relates to a toilet seat which conveniently extracts foul odours before they have a chance to escape from the toilet bowel into the room. Foul smells coming from public and private lavatories can be a major problem. This invention seeks to solve the problem at the source by extracting the foul air from the toilet via inwardly directed air ducts on the under surface of the seat.

Accordingly this invention provides a toilet seat including inwardly directed air ducts on the under surface leading to a hollow cavity inside the seat. There is also a hole socket at the back of the seat to which an air hose is attached, it is via this air hose that the foul air is sucked out by an extractor pump which is fixed to the wall. The foul air is jettisoned outside via a small hole in the wall situated behind the pump.

Also included on the under surface of the seat is a pressure switch which is activated when the seat is sat on. This pressure switch will immediately turn the extractor pump on when pressure is applied to the seat and will switch the pump off one minute after the pressure is released.

Preferably the toilet seat is made of plastic, but it may also be made of any hard material, i. e. wood or carbon fibre, it may also be made of a combination of these materials.

A preferred embodiment of the invention will now be described with reference to the accompanying drawings in which: FIG 1: shows an underside view of the whole toilet seat attached to a typical toilet bowl it also shows the extractor pump attached to the toilet room wall and also shows the air hose linking the toilet seat to the extractor pump,.

FIG 2: shows a top view of the whole toilet seat attached to a typical toilet bowl, it also shows the extractor pump and an air hose which is attached to both the back of the seat and the extractor pump.

As shown in Fig 1, the toilet seat comprises a pressure switch (1) on the under surface which is located at the front end. This pressure switch will turn the extractor pump (4) ON when the seat is sat on and switch the pump OFF approx. 60 seconds after the seat is no longer in use and the pressure is released. The switch is connected to the pump (4) by a thin electrical wire (not shown in the diagram), which runs through the hollow cavity in the seat and also along the inside of the air hose (3) that is connected to the back of the toilet seat at one end and to the extractor pump at the other.

Snown also in Fig 1, the toilet seat comprises on the under surface, ten inwardly directed air ducts (2) positioned all the way around the seat. The number of air ducts does not necessarily have to be ten, any number of air ducts can be used to serve their function in this invention, as long as they fit conveniently all the way around the under surface of the seat. These air ducts (2) lead into a hollow cavity inside the seat and their function is to provide an inwardly directed opening into the seat cavity, through which the foul air in and around the toilet bowl can be sucked by the extractor pump (4) into the toilet seat and out via the hose (3), which is attached to the back of the seat at one and to the extractor pump at the other.

Also shown in Fig 1, there is attached to the toilet seat an air hose (3) through which the foul air is sucked out by an extractor pump (4). When the pump is activated, the flow of air through this hose will travel in one direction only (in through the seat and out to the pump), it will then be jettisoned outside by the pump, via a small hole in the wall (6) located behind the pump. Also running through this hose is a thin electrical wire cable (not included in the diagram), which carries the ON/OFF instruction from the pressure switch (1) to the extractor pump (4).

Also shown in Fig 1, is an extractor pump (4). This pump is powered by electricity and is switched on and off by the pressure switch (1) attached to the under surface of the seat. The function of this pump is to suck the foul air in and the around the toilet bowl into the toilet seat via the air ducts in the seat (2). The foul air will then travel through the air hose (3) from the hollow cavity in the seat to the extractor pump (4) where it is then jettisoned outside through the pump nozzle (5). The extractor pump nozzle fits into a small hole drilled through the wall (6) located behind the pump.

Also shown in Fig 1, the toilet seat comprises four rubber cushions (8) which protect the seat from breakage. These rubber cushions also create a small gap between the seat and the toilet bowl when in use, allowing fresh air to flow freely into the toilet bowl and replace the foul air being extracted.

Also shown in Fig 1, is a typical toilet bowl (7) for which no novelty is claimed.

Claims

CLAIMS 1. An extractor toilet seat comprising air ducts located on the under surface that lead to a hollow cavity inside the seat, the body of the seat being hollow so as to allow air in and around the toilet bowl, to be sucked in through the air ducts and travel along through the inside of the seat to an opening at the rear, to which is attached an air hose at one end and an extractor pump at the other. Also attached to the under surface of the seat is a pressure switch which turns the extractor pump on when the seat is sat on and off when the pressure is released and the seat is no longer in use.
2. An extractor toilet seat as claimed in claim 1, wherein a wall mounted, electrically powered extractor pump that is connected to the rear end of the seat, via an air hose provides the suction required for the foul air extraction. It also provides the pressure required to jettison the air out of the room via a hole in the wall located behind the pump.
3. An extractor toilet seat as claimed in claim 1, wherein rubber cushions are attached to the under surface to protect the seat from breakage.
4 An extractor toilet seat as claimed in claim 1, wherein the body is provided with at least one hinge attachment to connect it to a typical toilet bowl.
5. An extractor toilet seat as claimed in claim 1, wherein a means of air filtration is provided.