Primed Jet Toilet

Abstract

A siphonic flush toilet system and method of priming the same having a toilet bowl assembly comprising at least one jet flush valve assembly and at least one rim valve; and bowl having a rim and a jet defining at least one jet channel. The bowl has a closed jet pathway to maintain the jet channel in a primed state with fluid from the jet flush valve assembly to prevent air from entering the closed jet pathway. Flush valves may have back-flow preventer mechanisms and/or at least partly flexible valve covers, including specific valve cover structures. Flush activation assemblies may have a flush activation bar connected to the pivot rod and/or an adjustable flush connector located between the pivot rod and the flush activation bar. A kit providing one or more flush activation elements is included. The kit elements may be usable with the toilet systems and methods described.

1 . A siphonic flush toilet assembly, comprising
 a bowl having an interior surface and an upper perimeter;   a tank configured to hold flush water between flush cycles;   a jet channel positioned at a bowl exterior;   a jet flush valve assembly having a jet flush valve inlet and a jet flush valve outlet; and   a trapway,   wherein   the jet flush valve assembly is configured to deliver flush water to an isolated jet fluid pathway during a flush cycle;   the jet fluid pathway comprises the jet channel,   the jet channel comprises a jet channel outlet positioned in a bowl lower portion for discharging flush water to a bowl sump area during the flush cycle,   the jet fluid pathway extends from the jet flush valve outlet to the jet channel outlet,   the bowl sump area comprises a jet trap defined by the bowl interior surface, the jet trap having an inlet end and an outlet end,   the jet trap inlet end receives flush water from the jet channel outlet,   the jet trap outlet end is in fluid communication with the trapway, and   once primed with flush water, the jet fluid pathway is configured to remain primed before actuation of and after completion of the flush cycle.   
     
     
         2 . The siphonic flush toilet assembly according to  claim 1 , wherein the jet fluid pathway is isolated from the atmosphere and is configured to prevent air from entering the jet fluid pathway before actuation of and after completion of the flush cycle. 
     
     
         3 . The siphonic flush toilet assembly according to  claim 1 , comprising a rim flow pathway open to the atmosphere, wherein the jet channel is isolated from the rim flow pathway. 
     
     
         4 . The siphonic flush toilet assembly according to  claim 1 , wherein during the flush cycle, the jet flush valve assembly is configured to close before a level of the tank flush water falls to a level of the jet flush valve inlet. 
     
     
         5 . The siphonic flush toilet assembly according to  claim 1 , wherein the jet trap has a seal depth sufficient to maintain the primed jet fluid pathway, the seal depth defined as a longitudinal distance through the sump area from an uppermost point of the jet channel outlet to an upper surface of a trapway inlet. 
     
     
         6 . The siphonic flush toilet assembly according to  claim 5 , wherein the seal depth is from about 1 cm to about 15 cm. 
     
     
         7 . The siphonic flush toilet assembly according to  claim 5 , wherein the seal depth is from about 2 cm to about 12 cm. 
     
     
         8 . The siphonic flush toilet assembly according to  claim 5 , wherein the seal depth is from about 3 cm to about 9 cm. 
     
     
         9 . The siphonic flush toilet assembly according to  claim 1 , wherein the jet flush valve assembly delivers from about 1 liter to about 5 liters of flush water during the flush cycle. 
     
     
         10 . The siphonic flush toilet assembly according to  claim 1 , wherein the jet fluid pathway comprises a jet manifold configured to receive flush water from the jet flush valve assembly and to deliver flush water to the jet channel, and wherein once primed with flush water, the jet channel and the jet manifold are configured to remain primed before actuation of and after completion of the flush cycle. 
     
     
         11 . The siphonic flush toilet assembly according to  claim 1 , wherein the jet flush valve assembly comprises a flapper cover configured to extend over the jet flush valve inlet. 
     
     
         12 . The siphonic flush toilet assembly according to  claim 11 , wherein the flapper cover is at least partly flexible and configured to be peeled upward upon opening. 
     
     
         13 . The siphonic flush toilet assembly according to  claim 11 , wherein the jet flush valve comprises a back-flow preventer. 
     
     
         14 . The siphonic flush toilet assembly according to  claim 11 , wherein the flapper cover comprises a seal and a rigid cover configured to be capable of bending the seal to gradually open the jet flush valve assembly. 
     
     
         15 . The siphonic flush toilet assembly according to  claim 14 , wherein the seal comprises a sealing surface and a locking surface, wherein the locking surface comprises a plurality of locking lugs positioned on the locking surface so as to engage a plurality of corresponding openings in the rigid cover. 
     
     
         16 . The siphonic flush toilet assembly according to  claim 14 , wherein the seal comprises an elastomer or other flexible polymer. 
     
     
         17 . The siphonic flush toilet assembly according to  claim 14 , wherein the rigid cover comprises a peeling section and a lifting section. 
     
     
         18 . The siphonic flush toilet assembly according to  claim 14 , wherein the flapper cover comprises hinged arms. 
     
     
         19 . The siphonic flush toilet assembly according to  claim 1 , wherein the jet flush valve assembly comprises a chain having a float. 
     
     
         20 . The siphonic flush toilet assembly according to  claim 1 , comprising two jet channels.