Abstract: A regulating device for regulating water consumption of a concealed water tank includes a water tank, a hinged base is fixedly arranged on the inner wall of the water tank, a water separator is hinged on the hinged base. A regulating mechanism is arranged between the hinged base and the water separator, and the regulating mechanism can drive the water separator to rotate and fix to divide the accommodation space of the water tank. Compared with the prior art, the regulating device realizes the variable volume of the water tank by regulating the rotation of the water separator through the regulating mechanism. The structure is simple and convenient for the later repair and maintenance of the water tank.

Abstract: Vacuum toilet flush valves. The disclosure uses a precise positioning of a magnet with respect to a flush valve plate in order to identify absolute alignment accurately.

Abstract: A device for the disposal of human waste matter, specifically a toilet, is presented. This toilet incorporates elements designed to prevent both a loss of flushing efficiency and an extensive consumption of water, all while improving upon the basic functionalities of the toilet as such. These elements include specialized parts designed to both improve the efficacy of the “siphon jet” type toilet by precluding the possibility of aeration within certain critical components of the toilet system proper, as well as a specialized rim fed channel whose intersection of the filled jet channel always travels below the operating water level of the bowl, and a vacuum assisted flushing system, whose primary purpose is to enhance the power of the toilet's flushing action.

Abstract: The present invention is to provide a system and a method for effectively preventing that gases/heat from an outlet are ascending from a gully and form ice, in addition to effectively drain liquids through a gully. The present invention is obtained by arranging a float so that said float and a portion of the gully define a closable opening for through flow, further arranged such that the float is preventing gases/heat from the outlet to ascend up from the gully and form ice and/or so that the float prevents that gas is drawn into the gully.

Abstract: A drain valve device includes a valve body and a lift part. The valve body plugs a drain outlet arranged on a bottom surface of a tank. The lift part is configured to lift the valve body. The lift part includes an engagement part. The engagement part engages with the valve body at a first height and releases engagement of the engagement part with the valve body at a second height. The second height is greater than the first height.

Abstract: A base connection device used to change a flapper drain valve to a barrel drain valve includes a flapper base and a first overflow pipe disposed in the external side of the flapper base; further includes a connection base and a second overflow pipe, the bottom of the connection base is sleeved on the flapper base in sealing way, and closing the bottom of the first overflow pipe, the top of the connection base is formed to a matching portion; the bottom of the second overflow pipe is connected to the outlet of the flapper base. To change a flapper drain valve to a barrel drain valve, the flapper base does not need to be disassembled. The barrel drain valve is inserted to the connection base to sleeve the connection base on the flapper base, with the second overflow pipe as an overflow pipe of the water tank.

Abstract: A flush water volume regulator is provided, capable of constraining the occurrence of a buoyancy force acting on a water reservoir, whereby flush water in the water reservoir can be circulated with flush water in a flush water tank outside the water reservoir. The flush water volume regulator 38 of the invention has a water reservoir, being a water reservoir 40 disposed inside this flush water tank 16, capable of storing a predetermined amount of flush water, on which an opening 40a through which flush water within water reservoir 40 and flush water outside water reservoir 40 can pass, and an opening-closing valve 42 for opening 40a during the standby state before starting a flush and for blocking opening 40a or reducing the opening surface area of opening 40a when the water level inside flush water tank 16 is dropping after starting a flush.

Abstract: Toilet assemblies having various embodiments of a cleaning system are described herein which include a toilet assembly and a cleaning system. The toilet assembly has a toilet bowl, a toilet tank, a flush valve, a rim inlet port and a rim flow path (which may be an isolated rim path) extending from an outlet of the flush valve to the rim inlet port.

Abstract: Toilet assemblies having various embodiments of a cleaning system are described herein which include a toilet assembly and a cleaning system. The toilet assembly has a toilet bowl, a tank, a flush valve, and a rim in fluid communication with the bowl through a rim flow path from an outlet of the flush valve to at least one rim outlet port. The flush valve is configured to operate in a flush actuation mode wherein the flush valve is able to provide flush water flow sufficient for the toilet assembly to initiate a flush siphon or provide a wash down flush and to operate in a cleaning actuation mode wherein the flush valve is only partially opened to allow for introduction of a cleaning agent and flush water mixture to the bowl that is insufficient to initiate a siphon but sufficient for cleaning the bowl.

Abstract: A water discharge valve device includes: a water discharge valve unit which has a valve element for opening and closing a discharge port and a control casing for controlling an up-down movement of the valve element; a casing module which includes a peripheral wall extending upwardly from a bottom wall of a water storage tank while surrounding peripheries of the discharge port and the control casing of the water discharge valve unit, to define an upwardly open space therebetween, an opening formed to penetrate through the peripheral wall, and a switching valve attached to the peripheral wall and adapted to open and close the opening; and a communication port formed in a peripheral plane extending from the control casing of the water discharge valve unit to the discharge port, to provide fluid communication between the casing module and the discharge port.

Abstract: A drain valve base includes an upper connection seat and a lower connection seat which are integrally formed. The upper connection seat is connected with the lower connection seat by connection arms which are provided at intervals, and hollow portions are provided between every two connection arms. A through drain outlet is formed in the center portion of the lower connection seat, and an annular surface is formed on the top of the lower connection seat. A water-seal convex ring is formed on a side part of the annular surface which is adjacent to the inwall of the drain outlet. A water-seal surface is formed on the top of the water-seal convex ring, and blocking devices which can stop water flow are provided on the inner side and the outer side of the water-seal convex ring.

Abstract: A canister flush valve is disclosed with a valve seat modified to accommodate a greater initial surge of flow, without distorting flushing performance. There is a mounting at the bottom of a toilet tank that links to an outlet hole from the tank and forms a valve seat. A passageway through the mounting tapers in an arcuate manner below the valve seat. There is also a guide support structure in the passageway, preferably centered. The guide support structure also has a tapered leg.

Abstract: A soft-touch double-drain valve includes a full-drain float including a large water sealing plate covering a water discharging opening and a small water sealing plate mounted in an insertion hole. A main body includes an inner tube through hole and an adjustment hole formed therein. A partial-drain weight float includes a partial-drain adjustment press bar and an inner tube penetration hole. A first position-limiting mechanism is mounted in the main body. A second position-limiting mechanism is mounted to a full-drain push button or a partial-drain push button. An inner tube is inserted in the inner tube penetration hole, the through hole, and the insertion hole and is provided with a return spring and has a lower end operable in combination with the small water sealing plate and an upper end operable in combination with the full-drain and partial-drain push buttons to control downward movement.

Abstract: A flush valve for a waste water system comprises a valve including a fluid inlet, a fluid outlet and a main valve element adapted for movement to allow fluid flow between the fluid inlet and the fluid outlet based on a pressure differential across a portion of the main valve element. The valve also includes a vent system comprising a control chamber in flow communication with the fluid inlet of the valve and a vent outlet in flow communication with the fluid outlet of the valve, and a solenoid for venting fluid venting fluid from the control chamber to the fluid outlet. A pressure sensor, such as an electronic pressure transducer, senses the fluid pressure of fluid within the vent system. When a predetermined pressure threshold is reached or exceeded, the solenoid can be energized to release fluid from the control chamber.

Abstract: A discharge valve apparatus has control cylinder members for controlling the flow of rinse water flowing out from a reservoir tank discharge port, on which opening portions are formed, and flow-adjusting members attached to these control cylinder members are capable of adjusting the opening surface area of opening portions in the control cylinder member. Female engaging portions in the control cylinder member are arrayed approximately vertically, and are furnished with registration indentations for registering the attachment positions of adjusting members relative to the control cylinder members. Intervals within the registration indentations are set to be smaller than a width of an installer's finger to prevent release of engagement by an installer when the adjusting member male engaging portions are in a state of engagement with the female engaging portions of the control cylinder members.

Abstract: A toilet comprising a tank configured to hold a first supply of water therein; a bowl having an inlet and an outlet, wherein the inlet is in fluid communication with the tank, such that the bowl is configured to receive the first supply of water; and a passage having a first end, a second end, and an inlet opening provided between the first end and the second end, wherein the first end is in fluid communication with the outlet of the bowl, wherein the second end is configured to be in fluid communication with a drain pipe, and wherein the passage is configured to receive a second supply of water through the inlet opening during a flush cycle.

Abstract: Various systems and methods of controlling the flow of water from a fill valve in a toilet tank to a toilet bowl of a toilet using a bowl fill valve are provided. An inlet of the bowl fill valve is coupled to a bowl fill outlet of the fill valve and the outlet of the bowl fill valve is channeled to the toilet bowl. In illustrative embodiment, a method is provided comprising the steps of determining when the toilet tank has been substantially drained of water during a flush cycle, and opening the bowl fill valve for a predefined period of time after the toilet tank has been substantially drained of water to fill the toilet bowl of the toilet with water. The predefined period of time is less than a total time of the flush cycle.

Abstract: A toilet comprising a tank having a bottom, a bowl, and an attachment assembly configured to secure the bottom of the tank to the bowl. The attachment assembly includes a mounting bracket having at least three mounting locations spaced apart around an opening, a valve configured to fluidly connect the tank and the bowl, the valve being configured to engage the bottom of the tank and the opening in the mounting bracket, a valve nut configured to couple to the valve to secure the mounting bracket between the valve nut and the tank, and at least three fasteners configured to secure the mounting bracket to the bowl. The at least three fasteners are disposed external to the tank and couple the tank to the bowl without directly engaging the tank.

Abstract: A flush water supply device includes: a water supply valve for switching between a water supplying state and a water stopping state with respect of an inside of the flush water tank; a refill water system on a downstream side of the water supply valve and adapted to allow flush water to be supplied to the flush water tank, and further supplied to a toilet main body as refill water, wherein the refill water system includes a common passage-forming portion which forms a common passage having: an inlet port for allowing inflow of the flush water therethrough; a tank-side outlet port for allowing the flush water to flow out toward the flush water tank therethrough; a main unit-side outlet port for allowing the flush water to flow out toward the toilet main body therethrough; and a vent port; and a vacuum break valve in the common passage-forming portion.

Abstract: A drain valve device and a drain valve for a cleaning water tank are disclosed. A drain valve device for a cleaning water tank which stores a cleaning water for cleaning a toilet bowl, comprises a drain valve main body including a supporting shaft extending in a horizontal direction and a valve seat attached to a draining port formed at a bottom surface of the cleaning water tank, and a drain valve including an engaging portion which engages with the supporting shaft and is capable of swinging in a vertical direction, and a valve body, connected with the engaging portion through an extending portion, for carrying out a water discharge and a water stop when contacting with or separating from the valve seat by swinging in a vertical direction.

Abstract: A flushing mechanism includes a housing with an outfall made at the housing bottom surrounding an axis; a guide rod with axial restraint relative to the housing along the axis; a first piston that hermetically slips on the cylindrical inner surface and guide rod at the same time along the axis direction; a spring loading the first piston installed in the upper cavity surrounding the guide rod; the second piston that hermetically slips on the guide rod along the axis direction and locates between the first piston and the housing bottom; a spring loading the second piston installed surrounding the guide rod; control valve; lower part of the first piston is provided with ring protuberance. The large seal ring of seal assembly of the second piston is sealed over the small seal ring of seal assembly of the second piston.

Abstract: A water leakage protecting device includes a ratchet, a pawl and an auxiliary floater. The ratchet is formed on an outer wall of a floater of a water inlet valve. The auxiliary floater has a floating cavity and a weight cavity therein. The weight cavity has a water drain hole at a bottom thereof. The auxiliary floater is coupled to the water inlet valve through a rotating shaft. The pawl corresponds in position to the ratchet and is connected to one side of the auxiliary floater close to the floater of the water inlet valve. The present invention can avoid water waste and ensure toilet safety.

Abstract: A water discharge valve device includes: a water discharge valve unit which has a valve element for opening and closing a discharge port and a control casing for controlling an up-down movement of the valve element; a casing module which includes a peripheral wall extending upwardly from a bottom wall of a water storage tankwhile surrounding peripheries of the discharge port and the control casing of the water discharge valve unit, to define an upwardly open space therebetween, an opening formed to penetrate through the peripheral wall, and a switching valve attached to the peripheral wall and adapted to open and close the opening; and a communication port formed in a peripheral plane extending from the control casing of the water discharge valve unit to the discharge port, to provide fluid communication between the casing module and the discharge port.

Abstract: A liquid-operated actuator assembly includes a valve with an inlet for connection to a source of a liquid, a bi-stable electromagnetic device for operating the valve, and an actuator including a piston in a cylinder. The piston incorporates an actuating member. The cylinder has a chamber on one side of the piston to which the outlet of the valve is connected for receiving the liquid when the valve is opened in order to move the piston and the actuating member to an operative position. An electronic control circuit momentarily energizes the electromagnetic device for operation of the actuating member and to terminate operation of the actuating member.

Abstract: A tank to bowl sponge gasket is provided for use with a flush valve used in the drain hole of a toilet tank, the tank sitting above the throat of a toilet bowl. The flush valve comprises a flange above the bottom wall, a lower externally threaded portion that extends through the drain hole and an internally threaded lock nut which complements the lower threaded portion of the flush valve, a tank seal disposed between the flange and the tank wall, and the gasket is disposed between the lower threaded portion of the flush valve, the lock nut and the tank wall and the throat of the toilet bowl. The gasket has a generally L-shaped upper portion with a circumferential outer surface, a circumferential inner surface and a bottom shelf, a lower portion comprising a circumferential inner surface and an inwardly tapered outer surface, and a circumferential trim line.

Abstract: A tank-type flusher is located in the water storage tank for flushing a toilet. The tank-type flusher includes an intake valve and a flush valve. The intake valve is connected to an external water source and constructed to close water flow to the water storage tank at about a predefined water level in the water tank. The flush valve is constructed to control a flush valve member between a seated state and an unseated state allowing water discharge from the water tank into a toilet bowl. The tank-type flusher may be controlled by a sensor module located at a reference location external to the water storage tank.

Abstract: The universal flush valve system comprises an universal system connector accommodating seating thereon of both a flapper style flush valve assembly and a canister style flush valve assembly, as required; a plurality of toilet tank specific connector extensions, each of which are threadedly engageable to a bottom portion of the universal system connector and are used to suitably engage the universal system connector to a water flow port in a toilet tank by extending through the port and receiving a suitable cooperating connection element thereover; a sealing device for sealing the required flush valve assembly against the universal system connector; and a locking mechanism for locking the required flush valve assembly onto a top portion of the universal system connector, seating over the sealing device to produce a water tight engagement therebetween.

Abstract: The discharge valve apparatus of the present invention has control cylinder members for controlling the flow of rinse water flowing out from a reservoir tank discharge port, on which opening portions are formed, and flow-adjusting members, attached to these control cylinder members and capable of adjusting the opening surface area of opening portions in the control cylinder member; whereby female engaging portions in the control cylinder member are arrayed approximately vertically, and are furnished with registration indentations for registering the attachment positions of adjusting members relative to control cylinder members, and the intervals within the registration indentations are set to be smaller than the width of an installer's finger to prevent release of engagement by an installer when the adjusting member male engaging portions are in a state of engagement with the female engaging portions of the control cylinder members.

Abstract: Flush valve assemblies are provided that include a valve body which may have a radiused inlet portion, an upper inlet end having an inlet opening, a lower outlet end having an outlet opening, and a wall extending between the upper inlet end and the lower outlet end and having an interior surface defining a flow path that extends generally longitudinally through the valve body from the inlet opening to the outlet opening and that has a generally circular transverse cross-section. A height measured longitudinally through the valve body is greater than a largest diameter of the transverse cross-section of the flow path so as to enable the valve bodies herein to have an elevated wall and head from a toilet tank floor. The assemblies may include a flapper valve cover detachably connected to the flush valve assembly and having a transverse cross-sectional diameter sufficiently large to cover the inlet opening of the valve body, a pivot mechanism and a flapper bulb.

Abstract: A dual valve assembly for limiting flow into a toilet tank comprises a fill valve, such as a float valve or ball cock valve, and a piston valve positioned between a water supply line and the fill valve. The piston valve operates independently of the fill valve, and is designed to shut off water flow after an approximate flow volume or time. The dual valve assembly may be provided in a single housing replacement part. The dual valve assembly may be provided as an adapter kit comprising a housing and piston valve which is installed in a toilet tank to accept a fill valve.

Abstract: The present invention relates to a water-stop plug of the flush valve including a connecting sheet, a fixing component and a casing body. The connecting sheet includes a ring part and a pair of hook-hanging parts, and users are capable of choosing the ring part or the pair of hook-hanging parts to fix the water-stop plug to the overflow tube according to the original overflow tube structure, and thereby being able to replace different types of water-stop plugs of flush valves.

Abstract: A system for flushing a vacuum toilet, includes a drain that is connected to a drain conduit, which vacuum toilet is connectable to a vacuum system by way of a suction valve. With the use of a combined valve including, for example, a flow-optimised intermediate storage device, inflow nozzle, bypass conduit with silencer and hose odor seal, the flow noises at the urinal bowl drain, urinal bowl overflow and upper end of the bypass conduit can be effectively suppressed. With the combination disc valve or the shut-off valve and suction valve, during the suction process the air stream is only drawn through the bypass conduit with a special odor seal and silencer.

Abstract: A flush valve assembly structure of a water tank is provided, and includes a valve seat, a guide rod, and a canister flush valve. The canister flush valve seals a flow path from an internal of the water tank to a toilet bowl, and may be lifted up to be separated from the valve seat to form a valve port. A water passage part is mounted on the canister flush valve, and a water passage post is disposed on the water passage part. A water inlet is disposed on the water passage post, which may be appropriately blocked by a block wall correspondingly disposed on the bottom wall. Meanwhile, a position of the water passage post may be adjusted to change a degree that the water inlet is blocked, so as to change a flow volume of flush water entering the canister flush valve from the water inlet.

Abstract: A flapper flush valve assembly includes a pair of laterally movable mounting arms which may be adjusted to vary a width therebetween to accommodate overflow tubes of different sizes. The flapper valve assembly is coupled to pivot members connected to an overflow tube. Mounting ears on the pivot members may include projections to provide spacing between the rotating mounting arms and adjacent sidewall of a toilet tank, thereby preventing jams.

Abstract: The components used in this invention has never been utilized in this special type of arrangement ever before. This new “Noise Reducing Valve for Toilet Systems” does not exist and cannot be found anywhere. Once available to the public it will be very useful and will help many light sleeper to have a better change of getting a good sleep at night, as they will not have to listen to loud toilet noises at night, on whenever they take a sleep.

Abstract: A canister flush valve is disclosed with a valve seat modified to accommodate a greater initial surge of flow, without distorting flushing performance. There is a mounting at the bottom of a toilet tank that links to an outlet hole from the tank and forms a valve seat. A passageway through the mounting tapers in an arcuate manner below the valve seat. There is also a guide support structure in the passageway, preferably centered. The guide support structure also has a tapered leg.

Abstract: A single-piece flush valve assembly for increasing the flush rate out of a discharge hole in a tank. The kit has an upper portion with an upper cylindrical wall defining an upper bore and a lower portion with a lower cylindrical wall defining a lower bore. The lower bore is smaller than the upper bore. The upper portion defines an inlet and the lower portion defines an outlet. The upper and lower bores are fluidly connected and collectively define a discharge conduit that extends from the inlet to the outlet. The lower portion is inserted into a discharge hole of like or substantially similar diameter. A flapper is swingable relative to the valve assembly from a closed position abutting the inlet to an open position raised from the inlet. The upper bore of greater relative diameter to the lower bore increases the rate of flow out the discharge hole.

Abstract: A system for controlling the duration and volume of a flow of water in a flush of a Toilet, which includes a buoyant flush valve which is non-automated in user actuation thereof to a raised open position. The system includes a converting element, for converting the buoyant flush valve to a non-buoyant flush valve which is non-automated in user actuation thereof to a raised open position. A programming element enables programming of a controlling time, for controlling the duration and volume of flow of water in a flush of a toilet. A controlling element is connected to the programming element and the non-buoyant flush valve, for retaining the non-buoyant flush valve in a raised open position upon non-automated user actuation thereof to the raised open position, and for releasing the non-buoyant flush valve from the raised open position for closing the non-buoyant flush valve, within the controlling time.

Abstract: A multifunctional toilet comprises a water storage device having a guide rail, a toilet seat and an arm assembly. The water storage device is provided with a water tank having a water inlet and a water outlet. At the water inlet is provided an inlet valve having a float ball, and at the water outlet is provided an outlet valve. The opening and closing of the inlet valve is controlled by a controller. The opening and closing of the outlet valve is controlled by a rope. When the water tank moves to its lowest position, the controller will close the inlet valve, and the rope will open the outlet valve. At the water outlet outside the water tank is provided an expansion discharge pipe. Such a multifunctional toilet is simple in structure and has the advantage of automatically flushing the toilet without the use of electricity.

Abstract: A canister type flush valve has an upright cup-shaped hollow float working under buoyancy forces without a captured air volume that controls the valve during a flush cycle. Hooded bleed openings at a bottom wall of the float can be sized and numbered to selectively control the closuring timing of the valve. Baffles of the hood bleed openings redirect water bleeding into the float to prevent the water from spraying up against the top of the tank. The geometry of a seal retaining groove is designed to reduce leakage at the float/seal interface. For example, the groove has an annular wall with a compound profile forming a non-cylindrical, preferably serpentine, seal contact area. The seal is backed by a slotted flange located just above the retaining groove.

Abstract: A toilet multi flushing device consisting of an enclosed tank (3) filled with compressible plastic sheets (6). The tank (3) has a direct connection (1) to water supply at the bottom, an outlet at the bottom of the tank (3) with an external ball valve used as a flushing valve (10). When the valve (10) is opened the water is ejected at high speed to clear the bowl. It could be mixed with fresh air to form a mist flow. The mist streams clear the bowl. Fresh air could be substituted by the air from the trap (25) to create vacuum after the trap (25) to facilitate the clearing of the bowl.

Abstract: The present invention is related to toilet device. Specifically, the present invention is related to a gravity fed toilet device of mega low water consumption, since it only consumes one gallon per flush (gpf) or 3.8 liters per flush (lpf), which is highly desirable for users. Conventional gravity fed toilets require a water consumption above 1.03 gpf/3.85 lpf for them to be efficient, or they require special accessories to improve their efficiency. The present invention significantly overcomes this high water consumption by providing a mega lower water consumption toilet device (i.e., 1 gpf/3.8 lpf), which operates by means of a conventional gravity system, without needing any accessory or special fittings elements, and with performance results equivalent or superior to those required for the highest standards and the regulation of world market.

Abstract: An adapter cup for use in a multi-piece valve assembly, a universal flush valve assembly kit and a method of installing in a flush tank with a discharge hole. The kit has a first adapter cup, an additional adapter cup and a main body valve fitting. The adapter cups have substantially identical upper rims that are configured for attachment to the main body valve fitting. Each adapter cup has a lower cylindrical portion with a different outer diameter than that of the other adapter cup. The lower portion of one of the adapter cups is inserted into a discharge hole of like or substantially similar diameter. The main body fitting with an inlet and outlet is attached to the rim of the inserted adapter cup. A flapper is swingable relative to the main body fitting from a closed position abutting the outlet to an open position raised from the inlet. A single flush tank valve assembly can be installed into toilet tanks with different sized discharge holes.

Abstract: A flush valve assembly structure of a water tank is provided, and includes a valve seat, a guide rod, and a canister flush valve. The canister flush valve seals a flow path from an internal of the water tank to a toilet bowl, and may be lifted up to be separated from the valve seat to form a valve port. A water passage part is mounted on the canister flush valve, and a water passage post is disposed on the water passage part. A water inlet is disposed on the water passage post, which may be appropriately blocked by a block wall correspondingly disposed on the bottom wall. Meanwhile, a position of the water passage post may be adjusted to change a degree that the water inlet is blocked, so as to change a flow volume of flush water entering the canister flush valve from the water inlet.

Abstract: A flush valve for a toilet has a valve body with a flow passage that narrows non-linearly down from the valve seat. The flow passage is formed by a surface that follows a polynomial expression so as to define a computationally derived flow profile that more closely follows the narrowing exhibited by falling water as it accelerates under gravity. The non-linear flow profile of the valve reduces the presence of air in the valve after a flush cycle is initiated so that greater flush efficiency can be achieved. The flush valve can also have a wide mouth overflow that narrows to improve flow in an overflow situation.

Abstract: A cistern outlet valve mounting bracket assembly (10). The assembly includes first and second bracket members (12, 14) adapted for positioning about an outlet valve (20) in engagement with each other and the valve (20). The members (12, 14) also have means (28, 32) to allow fixing of the engaged members (12, 14) to a cistern (38). A method of installing an outlet valve (20) in a cistern (38) is also disclosed.

Abstract: The present invention provides an improved top mounted toilet flush valve and a method for installing the flush valve that can be readily adapted to the tank profile of a wide variety of gravity operated flush toilets. More specifically, in accordance with the objectives of the present invention, there is provided a flush valve having an overflow tube that is adjustable in height and a method for adjusting the overflow tube.

Abstract: A canister type flush valve has an upright cup-shaped hollow float working under buoyancy forces without a captured air volume that controls the valve during a flush cycle. Hooded bleed openings at a bottom wall of the float can be sized and numbered to selectively control the closuring timing of the valve. Baffles of the hood bleed openings redirect water bleeding into the float to prevent the water from spraying up against the top of the tank. The geometry of a seal retaining groove is designed to reduce leakage at the float/seal interface. For example, the groove has an annular wall with a compound profile forming a non-cylindrical, preferably serpentine, seal contact area. The seal is backed by a slotted flange located just above the retaining groove.

Abstract: A canister flush valve is disclosed with a valve seat modified to accommodate a greater initial surge of flow, without distorting flushing performance. There is a mounting at the bottom of a toilet tank that links to an outlet hole from the tank and forms a valve seat. A passageway through the mounting tapers in an arcuate manner below the valve seat. There is also a guide support structure in the passageway, preferably centered. The guide support structure also has a tapered leg.

Abstract: The device of the present invention comprises a limiting face configured to limit a movement of a stop arm of a toilet flush system actuator unit, that may be mounted to a toilet flush valve body by at least one retention piece. A fulcrum piece may also be provided, the fulcrum piece including a fulcrum hole adaptably sized to receive a fulcrum pin of a toilet flush system actuator unit, such that when the device is installed on a broken toilet flush valve the device will substitute, or provide support, for the support arms with fulcrum holes and stop tab for the toilet tilt valve.