Ventilating System For Toilet Stool

Abstract

An improved toilet ventilating system, in one embodiment having a ventilation fan adapted for withdrawing air from a toilet stool bowl and discharging the air into a waste discharge passage of the toilet stool. A second embodiment, having a ventilation fan adapted for withdrawing air from a toilet stool bowl, passing the air through a filter for removing particulates and gases from the air and an element for disinfecting and/or scenting the air, then discharges the treated air back into the room atmosphere.

1 - 10 . (canceled) 
     
     
         11 . An improved toilet ventilating system, comprising:
 (a) a modified spud assembly, comprising a hollow cylindrical body having a plurality of air slots distributed circumferentially about the upper portion, adapted for sealingly connecting an annular air plenum between an open lower end of said spud assembly and a flush water distribution chamber integral with a toilet stool bowl;   (b) said flush water distribution chamber being in fluid communication with a bowl cavity of said toilet stool bowl, by means of an annular rim and a plurality of apertures between said annular rim and said bowl cavity;   (c) means for withdrawing air from said flush water distribution chamber, comprising an electrically-powered ventilation fan;   (d) means for collecting and directing said air withdrawn from said flush water distribution chamber, comprising said annular air plenum;   (e) means for conveying said air from said annular air plenum to an intake port of said ventilation fan, comprising an inlet duct assembly;   (f) means for filtering and/or scenting said air discharged from exhaust port of said ventilation fan, comprising a filtering/scenting element;   (g) means for controlling operation of said ventilating system by a manual switch in the system's electrical power circuit, or by activation signal from a suitably-located device adapted to energize said power circuit when a toilet seat of said toilet stool bowl is occupied by a person;   
       whereby odorous air may be withdrawn from said bowl cavity of said toilet stool bowl and discharged through said filtering/scenting element. 
     
     
         12 . The improved toilet ventilating system as recited in  claim 11 , wherein is added further means for delaying de-energization of the system after said person has vacated said toilet seat, comprising a timer incorporated into said electrical power circuit. 
     
     
         13 - 18 . (canceled) 
     
     
         19 . The improved toilet ventilating system as recited in  claim 11 , wherein said ventilation fan is powered by a battery. 
     
     
         20 . The improved toilet ventilating system as recited in  claim 11 , wherein is added further means for preventing water carryover from said annular air plenum into said ventilation fan assembly, comprising a dam added to or incorporated into the structure of said annular air plenum.