Abstract: A dual water-vessel flush structure and a pressure-assisted toilet flush system are disclosed. The dual water-vessel flush structure includes first and second vessels and a communicating pipe. The first vessel at an upper part thereof is provided with a water supplement hole and an air supplement hole. The second vessel at a lower part thereof is provided with a water outlet. The first and second vessels are mutually communicated at bottoms of laterals thereof through the communicating pipe. The pressure-assisted toilet flush system includes a dual water-vessel flush structure, a water-air supplement mechanism, a water drainage mechanism, and a control mechanism. The water supplement hole and the air supplement hole both lead to the first vessel through the water-air supplement mechanism. The water drainage mechanism is configured at the water outlet and interacts with the control mechanism.

Abstract: A pressure flushing system including a first container and a second container, and a communicating member that communicates with the first container and the second container; the first container is formed with a first water inlet and a drain, water flows into the first container from the first water inlet, and water in the second container flows in from the first container by means of the communicating member; gas in the first container and the second container is gradually compressed and stored in an upper part of the second container during a water intake process, and the compressed gas pushes the water in the first container and the second container to be discharged from the drain when draining. The present invention solves the disadvantages of the large volume and inconvenient installation of pressure water tank that have existing structures, and has the characteristics of a small volume and flexible installation.

Abstract: The apparatus and method of the invention provides for a rinse valve for controlling the flow of rinse fluid to a vacuum waste receptacle. The rinse valve comprises a primary rinse fluid flow path and a poppet assembly intersecting the primary rinse fluid flow path. The rinse valve also comprises a solenoid-driven fluid control device having a solenoid armature movable between an inactive state in which the armature engages the poppet assembly to block flow of the rinse fluid through a poppet channel and an active state in which the solenoid armature is disengaged from the poppet assembly to allow flow of the rinse fluid through the poppet channel to raise the poppet assembly, permitting the flow of the rinse fluid through the primary rinse fluid flow path and out of the valve, the armature being located at all times out of the primary flow path of the rinse fluid.

Abstract: An apparatus for initiating a flush of a pressure assisted toilet includes a generally cylindrical housing having a top end, a bottom end, an internal surface and a discharge aperture having a first predetermined area. The apparatus also includes a first member at least partially interposed within the housing and having a plurality of apertures formed therein; a second member at least partially interposed within the housing and having a generally cylindrical hollow body with a top opening, a tapered upper portion adjacent the top opening, a sealing portion, and a lower extension defining a lower opening; a stem portion extending at least partially through the first member and the second member; and a first flow path extending at least from the bottom end of the housing, through at least one of the plurality of apertures formed in the first member, and through the lower opening of the second member.

Abstract: A system for microbially deactivating items. The system includes a circulation system for circulating a microbial decontamination fluid through a deactivation chamber that forms a part of the circulation system. A container for holding items to be deactivated is provided. The container has a sealable cavity in which the items to be deactivated may be placed, and at least one valve element that is movable between an open and a closed position to regulate fluid flow into the cavity. An actuator in the deactivation chamber is operable to move the valve element to an open position when the container is disposed within the deactivation chamber, wherein the cavity within the container is in fluid communication with the circulation system when the valve element is in the open position.

Abstract: A flushing controlling mechanism includes a toilet bowl having a trap, a room, a hollow cylinder, a first piston, an inlet, an outlet and a first opening. The room selectively communicates with the trap via a first waste pipe, and a second waste pipe alternately communicates with the room. The hollow cylinder is received in the toilet bowl, and the first piston is movable inside the hollow cylinder. The inlet is adapted to be connected to a water source to allow water to flow into the water tank so as to move the first piston upward inside the hollow cylinder. The outlet selectively communicates with the trap of the toilet bowl. The first opening communicates with the suction space and the room of the toilet bowl. In addition, there is a device to accelerate downward movement of the first piston. Thus, the waste in the trap of the toilet bowl is sucked into the room and disposed from the second waste pipe.

Abstract: The pressure-flushing device comprises a pressure vessel (2), which, for receiving flushing water, has a pressure chamber (D). The pressure chamber (D) can be filled with flushing water by means of an inlet valve (7). The pressure chamber (D) consists of cylindrical pressure chamber regions (D1, D2, D3) which are interconnected in a lower region of the pressure vessel (2). The pressure chamber regions (D1, D2, D3) are preferably formed by cylindrical walls (Z1, Z2, Z3), these walls being essentially circular in horizontal section. The pressure vessel (2) can be made from plastic and is both pressure-stable and compact.

Abstract: A pressure vessel has a tank portion for preserving water and a drain mechanism mounted on the tank portion. An outlet is defined at a bottom of the tank portion for draining water. A through hole is defined at a top of the tank portion and corresponding to the outlet for mounting the drain mechanism thereon. The drain mechanism includes a hollow pipe and a separating plate extending horizontally from an inner side and near a top of the hollow pipe. An actuator is assembled on a top of the separating plate for manual operation and has a first resilient element mounted therein. At least a pivot element pivotably connects with the actuator and each forms an anchor at a lower end thereof. A pole extends longitudinally through an interior of the hollow pipe. The pole forms a flange at a top thereof, and defines at least a groove near the flange for latching the anchors.

Abstract: A pressure flush system for use within a toilet tank includes a pressure flush tank having an inlet port and a discharge port, an air inlet, and a valve assembly. The valve assembly includes a generally cylindrical housing, a water inlet in fluid communication with the pressure flush tank, a water outlet in fluid communication with the discharge port, a normally closed valve which allows fluid communication between the water inlet and water outlet when the valve is opened, a piston axially spaced from the valve, and a flexible tube positioned within the housing which is carried between the valve and the piston and in fluid communication therebetween. Relative to the valve, the piston is movable into and out sealing engagement with the discharge port to permit the discharge of water under pressure contained within the pressure flush tank. The flexible tube is movable in response to movement of the piston.

Abstract: A pressurized flushing system for discharging liquid into a toilet bowl. The mechanism comprises a sealed container for storing a pre-determined volume of the liquid under pressure having an inlet for connection to a liquid supply source under pressure and an inlet valve to permit liquid flow through the inlet until the pre-determined volume in the sealed container is reached. There is an outlet for discharging liquid under pressure and an outlet valve movable between an open position to permit liquid discharge through the outlet and a closed position to seal the outlet. The outlet valve is urged by internal pressure within the sealed container toward an open position of the outlet when the pre-determined volume of liquid is in the sealed container, however, an actuator normally locks the outlet valve in the closed position against the internal pressure of the container. Operation of the actuator by a user unlocks the outlet valve to permit movement of the outlet valve to the open position.

Abstract: A pressurized water closet operating system comprises an accumulator vessel for storing water and air under pressure. A flush valve controls the discharge of water from the vessel and comprises a cylinder having a lower end in fluid communication with the outlet of said vessel, a piston defining upper and lower chambers therein, an orifice in the piston, an aperture in the cylinder providing fluid communication between the interior of the accumulator vessel and the lower chamber in the cylinder, a valve on the piston normally closing the lower end of the cylinder so as to close the water outlet and openable upon upward movement of the piston to permit the discharge of water, and a normally closed flush valve actuator openable to effect fluid communication between ambient air pressure and the upper chamber in the cylinder whereby a fluid pressure differential across said piston effects upward movement thereof and opening of the valve.

Abstract: A toilet system which minimizes water usage, provides improved flushing,includes a water volume control device and provides flushing when the supply water pressure is below desired levels. The toilet system includes a source of water, a feed valve which is opened by an flush activation device and closes when the water supply flow rate falls below a predetermined flow rate. The toilet system also includes a sealed flush tank with a water volume control for pre-setting the desired water volume, and a flush valve which is activated when the flow rate of supply water falls below a pre-determined minimum level.

Abstract: A pressure flush system for use within a toilet tank includes a pressure flush tank which has an air inlet and a water inlet. Water is maintained with the pressure flush tank under air pressure. There is a water discharge for said tank to direct water to a toilet bowl. The tank contains a flushing valve system, which, when operated, will direct water under air pressure through said water discharge opening. The water discharge includes a housing which is attached to the bottom of the pressure flush tank and there is a one way check valve in the water discharge housing and located outside of the pressure flush tank. The one way check valve prevents water passing therethrough when the pressure flush tank is discharged and it permits the draining of water outside of the pressure flush tank and within the toilet tank through the water discharge opening.

Abstract: An apparatus for pressure assisted flush toilets that comprises an air tight enclosed flush tank, a feed valve, a volume control device and a flush valve. The flush tank is normally empty when it is not in use. A push on the feed valve starts a flush cycle by feeding the flush tank with pressurized supply water. The incoming feed water fills the flush tank and at the same time compresses the entrapped air therein. When the tank is filled to the desired volume, the volume control device triggers to close the feed valve and opens the flush valve. Then the pressure of the compressed air in the flush tank discharges the water to the toilet bowl. The discharging water stream from the flush tank cleans the toilet bowl. After the flush the flush tank remains empty until next use.

Abstract: A flushing apparatus for controlling water flow in a toilet flushing system. The flushing system includes a pressure tank and differential-pressure type flush valve that opens when accumulated fluid pressure above a piston is vented to atmosphere. The apparatus includes an actuator for venting the flush valve which includes a tubular member that defines an air flow passage through the flushing apparatus. The air flow passage is selectively controlled by a blocking member which slides within and relative to the tubular actuator. The air flow passage can be used to ventilate the corresponding toilet bowl when the system is at rest.

Abstract: A pressurized flushing assembly mounted in the tank of a toilet for providing a rapid and thorough flushing of the toilet bowl with a low volume of water. The assembly includes a water storage tank defining an outlet aperture communicating with the cistern drain and a valve assembly disposed within the storage tank for opening and closing the outlet aperture. The valve assembly communicates with a supply of pressurized water for directing water under pressure into the storage tank to compress the ambient air therein. The valve assembly includes a housing, a control valve, a fluid control piston, a cistern drain valve and a push button actuator for opening the control valve. Opening the control valve allows water within the valve assembly to flow therethrough and from the valve assembly, creating a pressure drop within the housing above the fluid control piston causing the fluid control piston rapidly to rise and allowing water to flow past the piston and from the valve assembly.

Abstract: A pressurized water closet operating system comprises an accumulator vessel having a flush valve assembly mounted internally thereof both of which are connected at all times to a source of water under pressure. A remote control valve hydraulically conditions the flush valve for the discharge of water under pressure from the accumulator vessel.

Abstract: A pressurized flushing assembly mounted in the tank of a toilet for providing a rapid and thorough flushing of the toilet bowl with a low volume of water. The assembly includes a water storage tank defining an outlet aperture communicating with the cistern drain and a valve assembly disposed within the storage tank for opening and closing the outlet aperture. The valve assembly communicates with a supply of pressurized water for directing water under pressure into the storage tank to compress the ambient air therein. The valve assembly includes a housing, a control valve, a fluid control piston, a cistern drain valve and a push button actuator for opening the control valve. Opening the control valve allows water within the valve assembly to flow therethrough and from the valve assembly, creating a pressure drop within the housing above the fluid control piston causing the fluid control piston rapidly to rise and allowing water to flow past the piston and from the valve assembly.

Abstract: A water closet of the tank type in which air is entrapped in the tank creating pressure to assist in expelling flushing water to a bowl during the flushing cycle. The flushing cycle is activated by a disc valve and piston connected to a domestic water supply for dislodging a float and valve from a valve seat. The water closet is constructed with a minimum of moving parts by employing a piston for dislodging the float which temporarily cuts off the flow of water to the bowl and utilizes the water pressure for returning the piston to the static position. The system also employs a vacuum breaker assembly having a ball in an angled pipe maintained by gravity against a seat in the flushing water line. The force of the water flowing into the bowl forces the ball from the seat during flushing. The ball returns to the seat by the force of gravity on the completion of flushing, preventing back pressure from any vacuum in the domestic water supply.