Ventilated toilet

Abstract

A toilet device may include a bowl portion having an interior volume and an interior surface. The device may further include a waste channel connected to the interior volume of the bowl portion through an opening in the interior surface. It may also include a rim positioned above the bowl portion and defining a lip that overhangs from the interior surface of the bowl portion. It may include a nipple molded into the bowl portion of the toilet bowl and protruding from the interior surface underneath the lip, where the nipple may include an egress channel connected to the interior volume of the bowl portion of the toilet bowl. It may further include a ventilation channel connected to the egress channel of the nipple at a first end of the ventilation channel and connected to a downstream portion of the waste channel at a second end of the ventilation channel.

What is claimed is: 
     
         1 . A toilet device comprising:
 a bowl portion having an interior volume and an interior surface;   a waste channel connected to the interior volume of the bowl portion through an opening in the interior surface;   a rim positioned above the bowl portion and defining a lip that overhangs from the interior surface of the bowl portion;   a nipple molded into the bowl portion and protruding from the interior surface underneath the lip, wherein the nipple includes an egress channel connected to the interior volume of the bowl portion; and   a ventilation channel connected to the egress channel of the nipple at a first end of the ventilation channel and connected to a downstream portion of the waste channel at a second end of the ventilation channel.   
     
     
         2 . The toilet device of  claim 1 , wherein the waste channel rises above a height of the opening and drops below the height of the opening to define a trap, wherein the downstream portion of the waste channel is separated from the interior volume of the bowl portion by the trap. 
     
     
         3 . The toilet device of  claim 1 , wherein the waste channel includes a flush valve, and wherein the downstream portion of the waste channel is separated from the interior volume of the bowl portion by the flush valve. 
     
     
         4 . The toilet device of  claim 1 , wherein a first end of the nipple has an oval shaped cross-section, and wherein a second end of the nipple has a circular cross-section. 
     
     
         5 . The toilet device of  claim 1 , wherein the egress channel of the nipple connects to the interior volume of the bowl portion through a downward facing opening. 
     
     
         6 . The toilet device of  claim 1 , wherein the bowl portion has a front side and a rear side, and wherein the nipple passes through the interior surface of the bowl portion at the rear side of the bowl portion. 
     
     
         7 . The toilet device of  claim 1 , further comprising a one-way valve positioned along the ventilation channel. 
     
     
         8 . The toilet device of  claim 7 , wherein the one-way valve includes an angled flap valve. 
     
     
         9 . The toilet device of  claim 1 , further comprising a fan configured to generate fluid flow within the ventilation channel. 
     
     
         10 . The toilet device of  claim 1 , wherein the ventilation channel is watertight to enable water to drain from the interior volume of the bowl portion while a water level in the bowl portion is above a height of the egress channel of the nipple. 
     
     
         11 . A molded toilet bowl comprising:
 a bowl portion having an interior volume and an interior surface;   a waste channel connected to the interior volume of the bowl portion through an opening in the interior surface;   a rim positioned above the bowl portion and defining a lip that overhangs from the interior surface of the bowl portion;   a nipple molded into the bowl portion and protruding from the interior surface underneath the lip, wherein the nipple includes an egress channel connected to the interior volume of the bowl portion; and   an opening in a sidewall of a downstream portion of the waste channel.   
     
     
         12 . The molded toilet bowl of  claim 11 , wherein the waste channel rises above a height of the opening and drops below the height of the opening to define a trap, wherein the downstream portion of the waste channel is separated from the interior volume of the bowl portion by the trap. 
     
     
         13 . The molded toilet bowl of  claim 11 , wherein the waste channel includes a flush valve, and wherein the downstream portion of the waste channel is separated from the interior volume of the bowl portion by the flush valve. 
     
     
         14 . The molded toilet bowl of  claim 11 , wherein a first end of the nipple has an oval shaped cross-section, and wherein a second end of the nipple has a circular cross-section. 
     
     
         15 . The molded toilet bowl of  claim 11 , wherein the egress channel of the nipple connects to the interior volume of the bowl portion through a downward facing opening. 
     
     
         16 . The molded toilet bowl of  claim 11 , wherein the bowl portion has a front side and a rear side, and wherein the nipple passes through the interior surface of the bowl portion at the rear side of the bowl portion. 
     
     
         17 . A method of forming a toilet device comprising:
 forming a bowl portion having an interior volume and an interior surface;   forming a waste channel connected to the interior volume of the bowl portion through an opening in the interior surface;   forming a rim positioned above the bowl portion, wherein the rim defines a lip that overhangs from the interior surface of the bowl portion;   molding a nipple into the bowl portion, wherein the nipple protrudes from the interior surface underneath the lip, and wherein the nipple includes an egress channel connected to the interior volume of the bowl portion; and   forming an opening in a sidewall of a downstream portion of the waste channel.   
     
     
         18 . The method of  claim 17 , wherein a first end of the nipple has an oval shaped cross-section, and wherein a second end of the nipple has a circular cross-section. 
     
     
         19 . The method of  claim 17 , wherein the egress channel of the nipple connects to the interior volume of the bowl portion through a downward facing opening. 
     
     
         20 . The method of  claim 17 , further comprising connecting a ventilation channel to the egress channel of the nipple at a first end of the ventilation channel and connecting the ventilation channel to the downstream portion of the waste channel through the opening in the sidewall at a second end of the ventilation channel.