초록 ▼

A dual flush volume pressurized flush device. A pressurized tank includes a tray for controllably retaining water during a flush event. The tray retains a certain volume of water when a reduced flush is activated, such that the entire volume of the tank is not flushed. In a full flush event, the act

A dual flush volume pressurized flush device. A pressurized tank includes a tray for controllably retaining water during a flush event. The tray retains a certain volume of water when a reduced flush is activated, such that the entire volume of the tank is not flushed. In a full flush event, the activation causes substantially the entire volume of the tank to be flushed, including the volume of water inside the tray. A controllable water retention tray valve is positioned in the tray and provides a controllable release for the water in the tray.

대표청구항 ▼

1. A dual flush system comprising: a pressure flushing tank defining an internal volume and having an inlet and an outlet;an air inducer operatively connected to the inlet and configured to pressurize the pressure flushing tank;a retention tray disposed within the pressure flushing tank, the retenti

1. A dual flush system comprising: a pressure flushing tank defining an internal volume and having an inlet and an outlet;an air inducer operatively connected to the inlet and configured to pressurize the pressure flushing tank;a retention tray disposed within the pressure flushing tank, the retention tray having both a retention tray opening and a central opening disposed in a bottom portion of the retention tray, the central opening having a column rising therefrom and forming a wall, the retention tray defining a volume;a flush valve for controlling the outlet, the flush valve extending from the outlet, through the central opening of the retention tray;a retention tray valve disposed adjacent to the retention tray opening for controlling the retention tray opening, the retention tray valve comprising a valve seal engageable with the retention tray opening, the valve seal having a valve stem connected thereto;a flush selector in communication with the retention tray valve and the flush valve, wherein actuation of the flush selector in a first direction actuates the flush valve for a partial flush and actuation of the flush selector in a second direction actuates the flush valve and the retention tray valve for a full flush. 2. The dual flush system of claim 1, wherein the retention tray valve further comprises a valve seat is disposed on an exterior surface of the bottom portion of the retention tray, surrounding a periphery of the retention tray opening, the valve seal engaged with the valve seat such that when the retention tray valve is opened the valve seal unseats exterior to the retention tray. 3. The dual flush system of claim 1, wherein the retention tray valve further comprises a valve seat disposed on an interior surface of the bottom portion of the retention tray, surrounding a periphery of the retention tray opening, the valve seal engaged with the valve seat such that when the retention tray valve is opened the disk valve seal unseats interior to the retention tray. 4. The dual flush system of claim 1, further comprising a retention tray actuation linkage assembly in communication with the valve stem. 5. The dual flush system of claim 4, wherein the retention tray actuation linkage assembly includes an actuation rod extending upward from the valve stem substantially perpendicular to the bottom portion of the retention tray, the retention tray actuation linkage assembly further in communication with the flush selector disposed on an outer surface of the pressure flushing tank, whereby actuation of the flush selector engages the retention tray actuation linkage assembly and opens the retention tray valve. 6. The dual flush system of claim 5, wherein the retention tray actuation linkage assembly further comprises a lever positioned on the outer surface of the pressure flushing tank in communication with the actuation rod and positioned adjacent to the flush selector. 7. The dual flush system of claim 4, wherein the retention tray actuation linkage assembly comprises at least one seal to preserve the integrity of the pressure flushing tank when under pressure. 8. The dual flush system of claim 6, wherein the flush selector comprises a full flush button and a partial flush button with the lever positioned between the full flush button and the flush selector such that actuation of the full flush button engages the lever, opening the retention tray valve as well as actuating the flush valve and initiating a flush cycle and wherein actuation of the partial flush button engages the flush valve but not the lever. 9. The dual flush system of claim 8, wherein each of the full flush button and the partial flush button has associated therewith an adjustable height mechanism for enabling the respective button to be utilized with water closets of various size. 10. A pressure flushing device, comprising: a flush vessel defining an internal volume and in fluid communication with a water inlet line and a water outlet line;an air inducer disposed between the water inlet line and the flush vessel such that water flowing into the flush vessel is mixed with air, pressurizing the internal volume of the flush vessel;a flush valve disposed within the flush vessel for controlling flow of water out of the flush vessel;a water retention tray assembly, comprising:a tray housing having an outer wall defining a volume and being open on at least one side to the interior of the flush vessel, the tray housing having a tray valve opening and a central opening, the central opening having a column rising therefrom forming a wall;a tray valve adjacent to the tray valve opening for controlling flow of water out of the water retention tray assembly into the flush vessel;the tray valve including a valve seat and a valve seal;an retention tray actuation linkage assembly in communication with the tray valve and the flush valve, the retention tray actuation linkage assembly including an actuation rod operatively connected to the valve seal and extending through the flush vessel housing, the retention tray actuation linkage assembly further including a lever moveably connected to a top surface of the flush vessel and operatively connected to both the rod and the flush valve;wherein actuation of the lever in a first direction actuates the flush valve, causing all of the water in the flush vessel except the volume contained in the tray housing to flow through the water outlet line, resulting in a reduced flush, and wherein actuation of the lever in a second direction actuates the flush valve and the tray valve, causing all of the water in the flush vessel to flow through the water outlet line, resulting in a full flush. 11. The pressure flushing device of claim 10, wherein the valve seat is disposed on an exterior surface of the tray housing such that when the tray valve is opened the valve seal is unseated and exterior to the tray housing. 12. The pressure flushing device of claim 10, wherein the valve seat is disposed on an interior surface of the tray housing such that when the tray valve is opened the valve seal is unseated and interior to the tray housing. 13. The pressure flushing device of claim 10, wherein the flush selector comprises a full flush button and a partial flush button with the lever positioned between the full flush button and the flush selector such that actuation of the full flush button engages the lever, opening the retention tray valve as well as actuating the flush valve and initiating an flush cycle and wherein actuation of the partial flush button engages the flush valve but not the lever. 14. The pressure flushing device of claim 13, wherein each of the full flush button and the partial flush button has associated therewith an adjustable height mechanism for enabling the respective button to be utilized with water closets of various size. 15. The dual flush system of claim 1 further comprising a retention tray valve biasing mechanism, the retention tray valve biasing mechanism holding the valve seal in engagement with the retention tray when the flush selector is not actuated such that the default flush is a reduced flush. 16. The dual flush system of claim 1 further comprising a retention tray valve biasing mechanism, the retention tray valve biasing mechanism biasing the valve seal away from the with the retention tray when the flush selector is not actuated such that the default flush is a full flush. 17. The pressure flushing device of claim 10, wherein the tray housing has a volume of about 0.33 gallon. 18. The pressure flushing device of claim 10 further comprising a retention tray valve biasing mechanism, the retention tray valve biasing mechanism holding the valve seal in engagement with the retention tray opening when the lever is not actuated such that the default flush is a reduced flush. 19. The pressure flushing device of claim 10 further comprising a retention tray valve biasing mechanism, the retention tray valve biasing mechanism biasing the valve seal away from the with the retention tray opening when the lever is not actuated such that the default flush is a full flush. 20. The pressure flushing device of claim 10, wherein the retention tray actuation linkage assembly comprises at least one seal to preserve the integrity of the flush vessel when under pressure.