Pressurized water closet flushing system

Abstract

A pressurized water closet operating system comprises a water vessel, an external manifold mounted directly on said vessel, and an internally mounted flush valve assembly. The manifold comprises a water pressure regulator, an air induction system, and a manually operable flush valve actuator. The manually operable flush valve actuator controls the discharge of water under pressure from the water vessel into the toilet bowl.

I claim:  
     
       1. An improved pressurized water closet comprising: 
       a water vessel;  
       an annular valve seat in a lower portion of said water vessel defining a water outlet therein;  
       a flush valve cylinder vertically oriented above the water outlet in said water vessel;  
       a piston in said flush valve cylinder defining an upper chamber therein, said piston being movable axially of said cylinder solely by a water pressure differential on opposite sides of said piston;  
       a flush valve on said piston normally seated on the valve seat of said water vessel for closing the water outlet therein;  
       a manifold mounted directly on said water vessel; and  
       means in said manifold for concomitantly venting the upper chamber of said cylinder and connecting a pressurized water source to said water vessel and to the upper chamber of said flush valve cylinder.  
     
     
       2. The water closet of  claim 1  wherein said means comprises a flush valve actuator operable to connect the upper chamber of said flush valve cylinder with the ambient environment so as to relieve water pressure therein to condition said piston and the valve thereon for movement to the open condition to discharge water from said water vessel through the water outlet therein. 
     
     
       3. The water closet of  claim 2  wherein said flush valve actuator is disposed internally of said manifold. 
     
     
       4. The pressurized water closet of  claim 1  wherein said manifold includes a pressure regulator having means for admitting ambient air into water flowing through said pressure regulator to said water vessel. 
     
     
       5. The pressurized water closet of  claim 4  wherein said pressure regulator comprises a pair of floating back check valves to preclude flow of water from said water vessel in reverse through said pressure regulator. 
     
     
       6. The pressurized water closet of  claim 2  wherein said flush valve actuator comprises an annulus surrounding a needle valve for the control of water flowing to the upper chamber of said cylinder. 
     
     
       7. A pressurized water closet flushing system in accordance with  claim 2  including 
       a disinfectant reservoir;  
       a water supply conduit extending from said water vessel, to said reservoir;  
       a disinfectant conduit extending from said reservoir to said water vessel; and  
       means for controlling the amount of disinfectant injected into said water vessel upon each flush.  
     
     
       8. The pressurized water closet of  claim 1  wherein said water vessel comprises a pair of spaced domes for isolating pressurized air from said flush valve cylinder. 
     
     
       9. The pressurized water closet of  claim 1  comprising a water discharge tube extending internally of said water vessel and communicating with said flush valve actuator and with the ambient atmosphere on the opposite side of the water outlet of said water vessel from the valve on said piston. 
     
     
       10. The pressurized water closet of  claim 6  wherein said needle valve is reciprocable in said annulus to effect cleaning thereof. 
     
     
       11. An improved pressurized water closet comprising 
       a water vessel;  
       an annular valve seat in a lower portion of said water vessel defining a water outlet therein;  
       a flush valve cylinder vertically aligned with said valve seat; and  
       a pair of spaced segregated air chambers disposed on opposite sides of said flush valve cylinder above the water outlet in said water vessel for precluding water logging thereof;  
       
         a manifold mounted directly on said water vessel; and  
       
       
         means in said manifold for concomitantly venting said pair of spaced segregated air chambers and connecting a pressurized water source to said water vessel and said flush valve cylinder.  
       
     
     
       12. An improved pressurized water closet flushing system comprising; 
       a water vessel;  
       an annular valve seat in a lower portion of said water vessel defining a water outlet therein;  
       a flush valve cylinder vertically oriented above the water outlet in said water vessel;  
       a piston in said flush valve cylinder defining an upper chamber therein and movable axially thereof solely by a water pressure differential thereacross;  
       a flush valve on said piston normally seated on the valve seat of said water vessel for closing the water outlet therein; and  
       a pressure relief valve on said piston openable on the occurrence of excessive pressure in the upper chamber of said cylinder to vent pressure therein to atmosphere.  
     
     
       13. The pressurized water closet of  claim 7  wherein said water supply conduit is connected to the flush valve actuator on said water vessel. 
     
     
       14. The pressurized water closet of  claim 7  wherein said water supply conduit is connected to said water vessel downstream of the valve seat thereon. 
     
     
       15. The pressurized water closet of  claim 11  wherein said air chambers comprise partitions extending downwardly from an upper wall of said water closet to a central portion thereof.