Toilet ventilation system

Abstract

A toilet ventilation system that includes a ventilation collar mountable between a toilet tank and a toilet base. The ventilation collar cooperates with the toilet base for removal of odoriferous air from the toilet bowl via ports in the toilet rim through the ventilation collar. A fan extracts the air from the ventilation collar. A baffle disposed within the ventilation collar prevents water from being extracted from the vent collar.

1 . A ventilation system for a toilet comprising:
 a tank and a base portion,   the tank including a bottom wall having a flush valve aperture in said bottom wall the base portion including a toilet bowl having a bowl portion and a rim that encircles the bowl portion,   the base portion defining a rim chamber extending generally along the rim of the toilet bowl, the base portion also including a plurality of ports in fluid communication with the rim chamber for conveying water from the rim chamber to the bowl of the base portion,   wherein the ventilation system comprises a vent collar mountable between said tank and said base portion, said comprising a housing and a baffle,   said housing including a generally cylindrical housing wall with an outer surface and an inner surface defining a passageway, a reduced diameter first aperture, an enlarged diameter intermediate passageway, a reduced diameter second aperture, and a ventilation port extending between said outer surface and inner surface of housing cylindrical wall,   a baffle comprising a generally cylindrical baffle wall with an outer surface and inner surface of the baffle wall including a plurality of ports extending between said inner surface and said outer surface of the cylindrical baffle wall,   wherein the outer surface of the baffle and inner surface of the housing define an annular air chamber when the baffle is disposed within the housing   a ventilation fan in communication with the baffle,   and wherein the vent collar is mounted between said toilet tank and said toilet-base with the housing first aperture in communication with the tank flush valve aperture and with having second aperture in communication with the toilet base portion aperture   
   
   
       2 . The ventilation system of  claim 1  wherein the annular air chamber is disposed the enlarged diameter intermediate passageway 
   
   
       3 . The ventilation system of  claim 1  further comprising a pipe member extending between the ventilator fan and the vent collar for placing the ventilation fan in communication with the baffle 
   
   
       4 . The ventilation system of  claim 1  further comprising a seal ring mounted between the housing first aperture and tank flush valve aperture 
   
   
       5 . The ventilation system of  claim 1  further comprising a seal ring mounted between the housing second aperture and the toilet base portion aperture