A water closet has a flush tank which reduces the head of flush water presented to a downwardly converging bowl which receives waste to be discharged through an outlet to a siphon trap, the bowl having a rim which causes the flush water to be presented to the trap in a vortex fashion. The trap is U-shaped and includes an upleg and downleg, the upleg having a converging-diverging cross-section to cause the dischrge to be pushed quickly from the bowl into the downleg, which becomes filled and creates a siphon. As waste travels down the downleg it passes through an expansion chamber which imparts a swirling movement to the waste and is again restricted at the outlet, which prevents air from entering the trapway and breaking the siphon.
A toilet bowl and rim construction capable of generating superior vortex flushing action. A rim restrictor means is strategically positioned on a side of the rim to direct the bifurcated streams of water to converge at the side of the rim. The relocation of the contact point from the conventionally placed central position to a strategically located side position increases the velocity and force on the water stream. Control of the volume, flow rate and directional orientation of the flushing water into and within the rim cavity and through rim discharge orifices produces superior vortex flushing action.
A two flush modality toilet composed of a bowl, a tank connected with the bowl wherein the tank is connected to a water supply, a conventional flush modality for flushing solid waste from the bowl, and a urinal flush modality for flushing liquid only waste from the bowl, wherein the urinal flush modality includes: a bowl valve at the base of the bowl, a bowl valve control for selecting between open and closed states of the bowl valve, a conduit for directing liquid waste from the bowl into the sanitary drain, and an auxiliary flush control for supplying a limited quantity of flush water from the tank into the bowl to provide restoration of the trap water in the bowl after a urinal flush modality has occurred. A foot pedal selectively operates the bowl valve, wherein when in an open state all the liquid in the bowl is drained. Upon release of the foot pedal, the bowl valve is returned to the closed state. Flush water from the tank is then delivered to the bowl to restore the trap water. Operation may be mechanically effected or electrically effected. With regard to mechanical operation, the flush water from the tank may be introduced by action of the foot pedal or by separate action of a control at the tank.
A water conserving toilet having a set of holes around the rim to provide a washing of the bowl includes enlarged holes towards the front of the rim to create a focused jet of water used to initiate siphon action. The enlarged holes are positioned on an elevated multi-plateau boss within the rim. The boss extends beyond the highest normal level of water in the rim and has a vent to vent air from the rim. A sloped entry within the receiving chamber connects the tank of the toilet to the rim to further increase the momentum of this water. The jet from the enlarged front holes in the rim is further focused by a groove extending on the bowl's lower wall.
A toilet has a trapway extending between a bowl opening and an outlet opening. The trapway defines a curved water dam region above the bowl opening, a down leg, and a straight out leg between the down leg and the outlet opening. The out leg has an air dam cavity such that the trapway has an increased cross-sectional area at the air dam.
A two flush modality toilet composed of a bowl, a tank connected with the bowl wherein the tank is connected to a water supply, a conventional flush modality for flushing solid waste from the bowl, and a urinal flush modality for flushing liquid only waste from the bowl, wherein the urinal flush modality includes: a bowl valve in the form of a pop-up stopper, pop-up seat and pivot ball assembly at the low point of the bowl; a bowl valve control for selecting between open and closed states of the bowl valve, a passageway for directing liquid waste from the bowl into the sanitary drain; and an auxiliary flush control for supplying a limited quantity of flush water from the tank into the bowl to provide restoration of the trap water in the bowl after a urinal flush modality liquid drainage of the bowl has occurred. A foot pedal selectively operates the bowl valve, wherein when in an open state all the liquid in the bowl is drained. Upon release of the foot pedal, the bowl valve is returned to the closed state. A limited amount of flush water from the tank is then delivered to the bowl to restore the trap water.
