Pressure-assist flush toilet

Abstract

A pressure-assist toilet assembly comprising a bowl; and a pressure tank assembly, wherein the pressure tank assembly is configured to be positioned in a bathroom wall cavity upon installation of the toilet assembly. The bowl may comprise an access space at an underside of the bowl, and/or may comprise a utility port positioned on a side of the bowl, configured to allow a bidet seat to be fluidly coupled to an in-wall water source and/or electrically coupled to an in-wall electric source. The assembly may comprise an in-wall support structure, the in-wall support structure configured to be removed from a bathroom wall cavity to provide access to a pressure tank assembly.

1 . A pressure-assist toilet assembly comprising
 a bowl; and   a pressure tank assembly,   wherein the pressure tank assembly is configured to be positioned within a bathroom wall cavity upon installation of the toilet assembly.   
     
     
         2 . The pressure-assist toilet assembly according to  claim 1 , wherein the pressure tank assembly is configured to be positioned within a bathroom wall cavity having a depth of less than about 4.0 inches, and wherein upon installation, the bowl extends less than about 22.0 inches from a bathroom wall. 
     
     
         3 . The pressure-assist toilet assembly according to  claim 1 , wherein the bowl comprises a jet inlet port positioned adjacent a bowl sump area, the jet inlet port configured to be coupled to a jet hose, and wherein the bowl comprises a rim inlet port positioned at a bowl upper perimeter, the rim inlet port configured to be coupled to a rim hose. 
     
     
         4 . The pressure-assist toilet assembly according to  claim 1 , wherein the bowl comprises an access area beneath the bowl, wherein the access area is configured to provide access to one or more of an angle stop, an electric outlet, a drain port, plumbing connections, or electrical connections. 
     
     
         5 . The pressure-assist toilet assembly according to  claim 1 , wherein the bowl comprises a utility port positioned on a side of the bowl, wherein a bidet seat may be fluidly coupled to an in-wall water source and/or electrically coupled to an in-wall electric source via the utility port. 
     
     
         6 . The pressure-assist toilet assembly according to  claim 1 , comprising an in-wall support structure, wherein upon installation of the assembly, a rear portion of the bowl is removably received by and coupled to the in-wall support structure, and wherein an upper rear portion of the bowl comprises one or more recesses configured to receive one or more brackets positioned on an upper portion of the in-wall support structure. 
     
     
         7 . The pressure-assist toilet assembly according to  claim 6 , wherein the bowl is configured to rest on one or more rods extending from a lower portion of the in-wall support structure. 
     
     
         8 . The pressure-assist toilet assembly according to  claim 6 , wherein upon installation of the assembly, the bowl covers a maintenance space, and upon removal of the bowl from the in-wall support structure, access to the pressure tank assembly is gained through the maintenance space. 
     
     
         9 . The pressure-assist toilet assembly according to  claim 6 , wherein the in-wall support structure is configured to be removed from within the bathroom wall cavity, to provide access to the pressure tank assembly. 
     
     
         10 . The pressure-assist toilet assembly according to  claim 6 , wherein the in-wall support structure comprises a telescoping coupling feature. 
     
     
         11 . The pressure-assist toilet assembly according to  claim 1 , wherein the pressure tank assembly comprises a first siphon tank and a second siphon tank, wherein the first siphon tank and second siphon tank are arranged in series. 
     
     
         12 . The pressure-assist toilet assembly according to  claim 1 , wherein the pressure tank assembly comprises a first siphon tank and a second siphon tank, wherein the first siphon tank and the second siphon tank are arranged in parallel. 
     
     
         13 . The pressure-assist toilet assembly according to  claim 1 , wherein the pressure tank assembly is configured to allow fluid to flow through an inlet of a first siphon tank, through a first siphon tube, through a space between the first siphon tube and a first siphon tank, through a space between a second siphon tube and a second siphon tank, and through the second siphon tube to exit an outlet of the second siphon tank. 
     
     
         14 . The pressure-assist toilet assembly according to  claim 1 , wherein the pressure tank assembly is configured to allow fluid to flow through an inlet of a first siphon tank, through a space between a first siphon tube and a first siphon tank, through the first siphon tube, through a space between a second siphon tube and a second siphon tank, and through the second siphon tube to exit an outlet of the second siphon tank. 
     
     
         15 . The pressure-assist toilet assembly according to  claim 1 , wherein the pressure tank assembly comprises a first siphon tank, a second siphon tank, an inlet assembly, and a discharge assembly. 
     
     
         16 . The pressure-assist toilet assembly of  claim 15 , wherein the pressure tank assembly comprises a first siphon tank comprising a first tank endcap and a first siphon tube, and comprises a second siphon tank comprising a second tank endcap and a second siphon tube. 
     
     
         17 . The pressure-assist toilet assembly of  claim 15 , wherein the inlet assembly comprises a pressure regulator, a venturi, an aspirator, and a check valve, and wherein the inlet assembly is located upstream of the first siphon tank, and wherein the discharge assembly comprises a discharge valve, a jet discharge port, and a rim discharge port, and wherein the discharge assembly is located downstream of the second siphon tank. 
     
     
         18 . A pressure tank assembly according to  claim 2 . 
     
     
         19 . A bowl according to  claim 6 . 
     
     
         20 . An in-wall support structure according to  claim 10 .