Patent Publication Number: US-2004049838-A1

Title: Method of removing unwanted air from a toilet bowl

Description:
SUMMARY  
       [0001] The Invention is a method of removing unwanted air from a Toilet Bowl. 
     
    
    
     DRAWING VIEWS  
     [0002] There are 9 Drawings provided where # 1  and # 2  are of a Bowl and Tank and # 3  and # 4  are of a Tank only and # 5  , 6  and  7  are bathroom ceiling fans and # 8  and  9  are of a 1½ inch butterfly valve used to shut off vacuum air flow 
    
    
     DETAILS OF DRAWINGS  
     [0003]FIG. 1 is looking down on a standard uni Bodied Toilet showing the addition of a Channel inside the Ceramics that moves air from the Bowl to the Tank.  
     [0004]FIG. 2 shows a Suction Chamber  1 , in front of the flush water channel  5  where Air is sucked through the restriction passage  2  into the outlet chamber  3 .  
     [0005]FIG. 3 shows an older style Toilet Tank where the outflow system is just a hole in the ceramic bottom of the Tank with a Air suction Tube sealed into it  
     [0006]FIG. 4 shows the front view of a Tank with the Air suction tube  4  actually Cast into the side front or back of the Tank similar to some tank overflow Tubes  5 .  
     [0007]FIG. 5 shows a Modified Bathroom fan where an additional suction Chamber  1  is created by using a second fan Blade  7  which exhausts at  2  and is connected to the lower fan Blade  6  turned by a single motor  5  with inlet  4  and outlet  3 .  
     [0008]FIG. 6 shows a Bathroom fan similar to # 5  except that the upper and lower Fan Blades are on the same Disc with an indentation to help separate the chambers.  
     [0009]FIG. 7 shows a Bathroom fan similar to FIG. 6 except that the Fan disk has a protrusion into the Fan body to help separate upper and lower suction.  
     [0010]FIG. 8 shows a butterfly valve  4  with an asymmetrical pivot  3  so it stays open with an air flow in tube  5  but when air flow stops the weight  2  closes it onto magnet  
     [0011]FIG. 9 shows valve  4  closed and held by magnet  1  against any air suction unless manually opened whereas airflow would keep it open as in FIG. 8