Odourless toilet

Abstract

An odourless toilet is provided. The toilet comprises a flush tank comprising a flushing water wet chamber, which comprises a flush assembly; and a flush outlet. The flush tank also comprises a dry chamber, which is positioned adjacent the wet chamber. The dry chamber comprises a chamber inlet, and a ventilator connected to the chamber inlet. The toilet also comprises a toilet bowl, which comprises a basin and, a basin access. The basin access comprises a wet inlet in fluid communication with the wet chamber flush outlet and the basin. The wet inlet serves in conveying the flushing water to the basin. The basin access also comprises a dry outlet in fluid communication with the dry chamber inlet and the basin. The toilet further comprises a diverter, which is positioned between the flush tank and toilet bowl, and registers with the basin access. The diverter comprises a flush passage, which couples the flush outlet to the wet inlet. The diverter also comprises an exhaust passage, which couples the dry chamber inlet to the dry outlet.

1 . An odourless toilet comprising:
 a flush tank comprising:
 a wet chamber configured to hold flushing water, the wet chamber comprising:
 a flush assembly for conveying the flushing water from the wet chamber; and, 
 a flush outlet through which the flushing water exits; 
 
 a dry chamber adjacent the wet chamber, the dry chamber comprising:
 a chamber inlet; and, 
 a ventilator connected to the chamber inlet for drawing air through the chamber inlet; 
 
   a toilet bowl comprising:
 a basin; and, 
 a basin access comprising:
 a wet inlet in fluid communication with the wet chamber flush outlet and the basin, for conveying the flushing water to the basin; and, 
 a dry outlet in fluid communication with the dry chamber inlet and the basin, through which basin air is drawn; and, 
 
   a diverter positioned between the flush tank and toilet bowl to register with the basin access, the diverter comprising:
 a flush passage coupling the flush outlet to the wet inlet, through which the flushing water is conveyed from the wet chamber to the toilet bowl; and, 
 an exhaust passage coupling the dry chamber inlet to the dry outlet, through which basin air is drawn by the ventilator into the dry chamber. 
   
   
   
       2 . An odourless toilet according to  claim 1 , wherein the dry chamber further comprises a filter connected to the ventilator, the filter for receiving and neutralising the basin air. 
   
   
       3 . An odourless toilet according to  claim 2 , wherein the dry chamber further comprises a one-way valve positioned between the chamber inlet and the filter, the valve permitting air flow from the inlet to the filter. 
   
   
       4 . An odourless toilet according to  claim 1 , wherein the dry chamber further comprises a chamber outlet connected to the ventilator through which the drawn basin air is exhausted to a toilet bowl trap. 
   
   
       5 . An odourless toilet according to clam  4 , wherein the dry chamber further comprises a one-way valve positioned between the chamber inlet and the chamber outlet, the valve permitting air flow from the inlet to the outlet and preventing backflow of the drawn air to the toilet bowl. 
   
   
       6 . An odourless toilet according to  claim 1 , wherein the dry chamber and wet chamber are positioned side by side with respect to the toilet orientation. 
   
   
       7 . An odourless toilet according to  claim 1 , wherein the dry chamber and wet chamber are positioned front to back with respect to the toilet orientation. 
   
   
       8 . An odourless toilet according to  claim 1 , further comprising a sensor, positioned on one of the flush tank and toilet bowl, for detecting the presence of a toilet user, the sensor activating the ventilator in response to a detected presence. 
   
   
       9 . An odourless toilet according to  claim 8 , wherein the sensor is positioned on the flush tank. 
   
   
       10 . An odourless toilet according to  claim 1 , wherein the basin further comprises air apertures in fluid communication with the dry outlet. 
   
   
       11 . An odourless toilet according to  claim 1 , wherein the basin further comprises:
 an air channel and a respective air aperture in fluid communication with the dry outlet; and,   a flush channel and a respective flush aperture in fluid communication with the wet inlet.   
   
   
       12 . An odourless toilet according to  claim 11 , wherein the air channel and flush channel are positioned about the rim of the toilet bowl. 
   
   
       13 . An odourless toilet according to  claim 1 , wherein the basin further comprises:
 an inner basin wall;   an outer basin wall defining the exterior of the basin, the inner and outer walls defining an air channel in fluid communication with the dry outlet; and,   an air channel aperture opening to the air channel and being positioned on the inner basin wall at a point above the basin water line.   
   
   
       14 . A flush tank for use in an odourless toilet comprising a toilet bowl comprising a basin, the flush tank comprising:
 a wet chamber configured to hold flushing water, the wet chamber comprising:
 a flush assembly for conveying the flushing water from the wet chamber; and, 
 a flush outlet through which the flushing water exits; 
   a dry chamber adjacent the wet chamber, the dry chamber comprising:
 a chamber inlet; and, 
 a ventilator connected to the chamber inlet for drawing air through the chamber inlet; and, 
   a diverter positioned to register with a basin access of the toilet bowl, the basin access comprising a wet inlet in fluid communication with the wet chamber flush outlet and the basin, for conveying the flushing water to the basin, and, a dry outlet in fluid communication with the dry chamber inlet and the basin, through which basin air is drawn, the diverter comprising:
 a flush passage coupling the flush outlet to the wet inlet, through which the flushing water is conveyed from the wet chamber to the toilet bowl; and, 
 an exhaust passage coupling the dry chamber inlet to the dry outlet, through which basin air is drawn by the ventilator into the dry chamber. 
   
   
   
       15 . A flush tank for use in an odourless toilet according to  claim 14 , wherein the dry chamber further comprises a filter connected to the ventilator, the filter for receiving and neutralising the basin air. 
   
   
       16 . A flush tank for use in an odourless toilet according to  claim 15 , wherein the dry chamber further comprises a one-way valve positioned between the chamber inlet and the filter, the valve permitting air flow from the inlet to the filter and preventing backflow of the drawn air to the toilet bowl. 
   
   
       17 . A flush tank for use in an odourless toilet according to  claim 14 , wherein the dry chamber further comprises a chamber outlet connected to the ventilator through which the drawn basin air is exhausted to a toilet bowl trap. 
   
   
       18 . A flush tank for use in an odourless toilet according to clam  17 , wherein the dry chamber further comprises a one-way valve positioned between the chamber inlet and the chamber outlet, the valve permitting air flow from the inlet to the outlet. 
   
   
       19 . A flush tank for use in an odourless toilet according to  claim 14 , wherein the dry chamber and wet chamber are positioned side by side with respect to the toilet orientation. 
   
   
       20 . A flush tank for use in an odourless toilet according to  claim 14 , wherein the dry chamber and wet chamber are positioned front to back with respect to the toilet orientation. 
   
   
       21 . A flush tank for use in an odourless toilet according to  claim 14 , further comprising a sensor, positioned on the flush tank, for detecting the presence of a toilet user, the sensor activating the ventilator in response to a detected presence. 
   
   
       22 . A flush tank insert for a toilet flush tank of an odourless toilet comprising a toilet bowl comprising a basin, the flush tank insert comprising:
 an insert body comprising:
 a wet chamber configured to hold flushing water, the wet chamber comprising:
 a flush assembly for conveying the flushing water from the wet chamber; and, 
 a flush outlet through which the flushing water exits; 
 
 a dry chamber adjacent the wet chamber, the dry chamber comprising:
 a chamber inlet; and, 
 a ventilator connected to the chamber inlet for drawing air through the chamber inlet; and, 
 
 a diverter positioned between the flush tank and the toilet bowl to register with a basin access of the toilet bowl, the basin access comprising a wet inlet in fluid communication with the wet chamber flush outlet and the basin, for conveying the flushing water to the basin, and, a dry outlet in fluid communication with the dry chamber inlet and the basin, through which basin air is drawn, the diverter comprising:
 a flush passage coupling the flush outlet to the wet inlet, through which the flushing water is conveyed from the wet chamber to the toilet bowl; and, 
 an exhaust passage coupling the dry chamber inlet to the dry outlet, through which basin air is drawn by the ventilator into the dry chamber. 
 
   
   
   
       23 . A flush tank for use in an odourless toilet according to  claim 22 , wherein the dry chamber further comprises a filter connected to the ventilator, the filter for receiving and neutralising the basin air. 
   
   
       24 . A flush tank for use in an odourless toilet according to  claim 23 , wherein the dry chamber further comprises a one-way valve positioned between the chamber inlet and the filter, the valve permitting air flow from the inlet to the filter. 
   
   
       25 . A flush tank for use in an odourless toilet according to  claim 22 , wherein the dry chamber further comprises a chamber outlet connected to the ventilator through which the drawn basin air is exhausted to a toilet bowl trap. 
   
   
       26 . A flush tank for use in an odourless toilet according to clam  25 , wherein the dry chamber further comprises a one-way valve positioned between the chamber inlet and the chamber outlet, the valve permitting air flow from the inlet to the outlet. 
   
   
       27 . A flush tank for use in an odourless toilet according to  claim 22 , wherein the dry chamber and wet chamber are positioned side by side with respect to the toilet orientation. 
   
   
       28 . A flush tank for use in an odourless toilet according to  claim 22 , wherein the dry chamber and wet chamber are positioned front to back with respect to the toilet orientation. 
   
   
       29 . A flush tank diverter for a toilet flush tank of an odourless toilet, the flush tank diverter being positionable between the flush tank and a toilet bowl to register with a basin access of the toilet bowl,
 the flush tank comprising:
 a wet chamber configured to hold flushing water, the wet chamber comprising:
 a flush assembly for conveying the flushing water from the wet chamber; and, 
 a flush outlet through which the flushing water exits; 
 
 a dry chamber adjacent the wet chamber, the dry chamber comprising:
 a chamber inlet; and, 
 a ventilator connected to the chamber inlet for drawing air through the chamber inlet; 
 
   the toilet bowl comprising:
 a basin; and, 
 the basin access comprising:
 a wet inlet in fluid communication with the wet chamber flush outlet and the basin, for conveying the flushing water to the basin; and, 
 a dry outlet in fluid communication with the dry chamber inlet and the basin, through which basin air is drawn; 
 
   the diverter comprising:
 a flush passage coupling the flush outlet to the wet inlet, through which the flushing water is conveyed from the wet chamber to the toilet bowl; and, 
 an exhaust passage coupling the dry chamber inlet to the dry outlet, through which basin air is drawn by the ventilator into the dry chamber.