Abstract: A flushing system for rapidly delivering a given volume of water supplied to an accumulating chamber (5) from an automatically or manually operated valve (6) has a float-controlled discharge valve (19) which is arranged to be opened when said given volume of water has been delivered to the accumulating chamber (5) and the float is located at a corresponding level in said chamber. A supply pipe (13) extends downwardly in the accumulating chamber (5) towards the outlet (3), and a valve housing (19) is slidably arranged, together with the float, on the water supply pipe. In a closing position of the valve housing, the lower edge part of the valve encircles the outlet. In an opening position of the valve housing, with water in the accumulating chamber, the valve housing is lifted from the seating. The lower end of the supply pipe is formed with a valve body (17) arranged, together with the valve housing, to form a pressure chamber (24) having a leakage opening.

Abstract: A buoyancy control unit for the flapper-type ball valve of a water closet flushing unit includes a flexible air release metering tube of a smooth plastic connected to the outer peripheral portion of the flapper valve ball and extended upwardly from the stored water level. An adjustable meter valve is secured about the tube to adjustably collapse the tube for metering flow of air. A simple strap hanger has an offset apertured support tab through which the tube passes and on which the meter valve rests. The opposite strap end is bent and hooked over the edge of the tank. A stick pin is secured in the ball end of the tube and the tube is secured in a pin threader which passes through the opened bottom of the ball and the tube opening to insert the tube with the pin abutting the interior of the float ball.

Abstract: A flushing controller for a toilet which includes a variable flushing actuator, a pre-set flushing actuator, a fixed bush and a vertically adjusted float wherein the float can be freely and continuously adjusted for saving water resources when operating the pre-set flushing actuator.

Abstract: Pivoted flap valves are positioned at different angles by valve seats formed on a flush valve body on opposite sides of a vertical axis extending through a lower outlet section of the valve body. Flexible actuating elements depending at different angles from the flush lever, control opening of the flap valves in a one- or two-stage flush operation in response to displacement of the flush lever in one direction.

Abstract: A toilet flush mechanism conserves water by offering a choice made by the direction of rotation of the flushing handle of either actuating a first lever initiating the discharge of a full tank of water or actuating a second lever initiating the discharge of a predetermined fraction of the water in the full tank, herein designated a mini-flush. A flapper valve controlling the discharge of water from the tank is opened by the actuation of either of the levers, is permitted to close in conventional fashion when the tank is empty upon first lever actuation and is closed by a downward thrust of a striker upon second lever actuation. A water level responsive device including a second float triggers the striker and acts independently of the ballcock valve and float which maintains the full level of water in the conventional manner.

Abstract: An overflow pipe in a water closet supports a valve arm which carries a valve for opening and closing an outlet in the bottom of the tank. A first float is connected to the outer end of the valve arm to maintain the valve in an open position until the water level falls below a predetermined level. A second float is carried on a float arm pivoted intermediate its ends to the support. Cooperating lock means are provided on the end of the float arms opposite the float and in the travel path of the valve arm whereby a horizontally disposed pin on the valve arm is adapted to engage a horizontal surface on the adjacent end of the float arm and move therealong into locking engagement with a vertical shoulder thereby holding the valve in an open position until the water level in the tank falls below a second predetermined lower level thereby releasing the valve arm to return the valve to its closed position. A trip handle is connected to the first float for initially moving the valve to an open position.

Abstract: A clip-on attachment is disclosed by which an unskilled homeowner can easily transform his existing toilet or a new one into a water-saving device wherein either a total or partial flush can be selected at the option of a user. In the preferred embodiment, the attachment comprises a force-down wire which can be easily clipped onto any standard flapper flush valve, a lever arm having a lower end portion which can pivot against the wire to prematurely force the valve to close, a weighted float attached to the top of the lever arm near the full water line of the tank, and a latch to selectively prevent or allow the float to drop with the upper level of water in the tank during flushing of the toilet.If a user decides that a partial flush is sufficient to evacuate the bowl, the latch is positioned to allow the float to freely drop with the water level. As the float drops, the lever arm pivots and forces the valve to prematurely close before the tank is completely emptied.

Abstract: A device for controlling the discharge of water from a toilet tank, in either a full flush mode or a partial flush mode, utilizes an opening mechanism that produces the full flush in its normal condition and without need for any extraordinary manipulation. Shifting the operating handle inwardly, while rotating it in the customary manner, will produce a partial discharge of the contents. The device includes a biasing member, which engages a moving part of the valve assembly to exert a closing bias thereupon, but which does not unduly limit the movement of the valve plug so as to constrain it to less than a fully open position.

Abstract: A half-flush mechanism for a commode. The half-flush mechansim allows user control of the amount of water used in flushing the commode. Activation of the mechanism entails pushing of a button located in an otherwise conventional flush handle. The mechanism is always in the full flush mode and returns to the full flush mode until again activated by the pushing of the half-flush button. The half-flush mechanism is adaptable to a variety of commode designs and may be adjusted by the user to release varying amounts of water during the half-flush mode.

Abstract: A controlling device for the water-tank of a flush toilet comprising two handles on the water-tank whereby a high or low level is optionally determined, and whose controlling elements are all fitted to the handle assemblies and are independent of a hydraulic backing gate. The invention results in ease of assembling and repair, and also reduced effort for operation of the handles as well as reduced cost for modifications of a conventional water-tank.

Abstract: A flush control apparatus includes a housing which replaces the usual tank top and has a chain extending down to the usual outlet valve member which is weighted to give it negative buoyancy. In the housing is a lever, motor, switch and timing circuit system which operates in response to actuation of one of two push buttons to lift the valve member for a predetermined interval of time, thereby determining an amount of flush water to be dispensed into the bowl.

Abstract: A water-saving device for toilets is provided which when employed in a conventional toilet tank allows for flushing a conventional toilet employing an amount of water which is substantially less than usually employed. The water-saving device of the invention employs a combination of a lower float and an upper float; upon flushing, the lower float functions as a closure member for the orifice in the bottom of the toilet tank and the upper float is adapted to bear against the lower float to force the lower float to seat in the orifice of the tank after the level of water in the tank has been reduced to 75% or less of the water normally used in flushing a toilet. In addition, locking means and related control means are provided for releasing the upper float when the toilet is flushed and for locking the upper float in an immobile position when the flush has been effected.

Abstract: My invention relates to a fail-safe automatic valve mechanism for water closets.This system may be operated to drain the tank either partially or completely with particular emphasis on operation of either partial or complete flushing. Previous systems have been designed where the partial flush has no definite indent or feel for the partial flush mode, making it difficult or almost impossible to select the desired flush. The magnetic trigger assembly of my invention gives positive feel to the partial flush mode, as hereinafter described.

Abstract: A flush valve mechanism for controlling the flushing action of water thro the water outlet of a flush cistern is provided. The mechanism comprises a water outlet valve liftable off the water outlet to effect the flushing action and a buoyant, valve-engaging assembly adapted to move independently of the water outlet valve by virtue of its buoyancy. The water outlet valve having an effectively negative overall buoyancy when the cistern is at least partially full. The valve-engaging assembly comprises a pivotably mounted buoyant lever having at least one arm with a buoyant means attached at one end thereof adjacent the bottom of the cistern and is provided with means at its other end for selectively engaging the valve. The assembly further comprises restraining means having a first position normally engaging and restraining the buoyant lever with the buoyant means in close proximity to the cistern bottom and the engaging means in disengaged relationship to the valve.

Abstract: This invention relates to a variable volume flushing cistern and in particular it relates to a cistern of the type in which a selection can be made of the amount of water discharged during a flush.

Abstract: The amount of water discharged from the tank of a flush toilet is controlled in a stepless manner by means of a rotary volume control lever concentric with the usual flushing handle. The volume control lever is connected with a slider on the arm of a float which floats at the surface of the water in the tank. The slider is connected by a lost-motion connection with a closure for the discharge opening of the tank. When the water level in the tank falls to a level determined by the position of the slider on the float arm, the closure, which has been opened by operation of the flushing handle, is closed to prevent further discharge, thereby conserving water.

Abstract: A remote-control valve having at least a two-part housing with a pressure inlet and adjacent outlet in one part, and which valve is opened and closed by a flexible continuous impermeable diaphragm at the base of a pressurizable frusto-conical chamber in the other part of the housing. This substantially conical chamber contains a free rubber ball which closes the apex opening from the chamber when the chamber is pressurized through a continuously open bypass from the inlet duct around the diaphragm in the first part of the housing. A projecting means such as a pin insertable through the apex of the chamber moves the ball away from its outlet duct to reduce the pressure in said chamber so that the pressure in the inlet duct will flex the diaphragm to open the valve to the outlet duct.

Abstract: Disclosed herein is a two variable flush gate for a flush toilet. It is a structure that, by means of adding and altering parts of elements in a traditional flush gate, can select a discharge quantity with simple operation of the discharge lever as needed so that unnecessary water consumption can be avoided.

Abstract: A water saving apparatus for a tank flush mechanism in which the trapped air in the flush discharge valve is vented to terminate the flush when the water level in the tank drops to a predetermined level. A pair of water level responsive actuators, set to respond at different water levels, cooperate with a normally closed vent valve coupled to the air chamber in the flush discharge valve. As the water level in the tank drops after a flush is initiated, the actuator set at the higher level in the tank will normally respond first to open the vent valve to exhaust the air from the discharge valve and terminate the flush. To provide a large volume flush, the higher level responsive actuator is rendered non-responsive by the user's manipulation of the flush handle, thereby allowing the flushing action to continue until the other actuator responds to the falling water level to open the vent valve.

Abstract: A variable volume flushing cistern comprising a body with a division wall across it to form two compartments, the first containing a float and water inlet valve and communicating with a flushing valve on the base of the cistern, a second communicating through a movable flap with the flushing valve so that by closing the valve water from the second compartment can be prevented from discharging through the flushing valve when a smaller flush is required.

Abstract: A dual flush system tank adapted to provide either a full flush or a partial flush at the option of the user. The control handle is actuated normally to produce a full flush. If a partial flush is desired, the control handle is held in its depressed condition for two or three seconds after which it is released. This produces a partial flush. A partial flush is produced by a buoyant reseating weight which will float down with the falling level of liquid in the tank to depress the flush ball and prematurely reseat it in its outlet seat when only part of the liquid has been discharged from the tank. The reseating weight is provided with a latch actuated by the flush handle. For a full flush, the latch is released but is immediately re-engaged before the reseating weight moves downwardly in the tank and is hence latched against premature seating of the flush bal.

Abstract: For use in a toilet flush tank having a flush discharge opening at the bottom which is normally closed by a discharge valve having an air chamber therein, an attachment including an air passage for venting the air chamber and a water level responsive valve normally closing the air passage when the water within the tank is above a predetermined height and for venting the air chamber when the water in the tank falls to a predetermined level, so that when the discharge valve is lifted and buoyed by the air within the chamber thereof during the discharge of water from the tank, the discharge valve will be permitted to reseat as soon as the float controlled valve vents the air chamber.

Abstract: A drain valve operating device for a cistern of flush toilet whereby the amount of water for flushing a toilet pot can be available either in "large" amount or in "small" amount by turning a lever either to the right or to the left.

Abstract: An inner tank or reservoir is mounted in the conventional flush tank of a sanitary toilet or commode. The tank may be rectangular and have an open top and a closed bottom. An outlet in a vertical wall is closable by a buoyant sphere. The sphere may be free-floating and guided to the outlet by a cage. Alternatively the sphere may be lever-mounted and pivotable in and out of sealing contact with the outlet. A bellows operated from an air pump displaces the sphere from closed relationship to the outlet. Preferably the pump is exterior of the toilet flush tank and connected to the bellows by a flexible plastic conduit.The conventional tank is flushable in conventional manner from its outside handle and the capacity of the inner tank may be added to the water flow by the operation of the air pump.

Abstract: A toilet flushing mechanism is described which embodies water conserving dual modes of operation providing either a full tank volume water flush or a partial flush. Selective manipulation of the toilet tank handle provides different dwell times for an air valve to remain open and causes alteration in the elapsed time required for a buoyant tank drain valve to seat so that the volume of water which drains from the tank during each cycle is altered.

Abstract: A dual flush apparatus for selecting one flushing mode in which all the water in the toilet tank is drained or another mode wherein only a portion of the water is drained. A toilet valve actuating handle is bistable so that it is yieldably biased to two positions. It is linked to a toilet flushing valve so that it can open the valve and in one of its bistable positions apply a force on the valve and in the other not apply such a force. Depending upon the particular valve structure to which the handle is linked, the force which the handle applies, when applied either prevents or enables the premature closure of the valve at an intermediate water tank level. One flushing mode occurs when the handle force is applied and the other mode occurs when the force is not applied.

Abstract: A device for selecting either a first volume of liquid or second volume of liquid to be used in a flush cycle of a typical toilet tank. The device consists of a damming wall which separates the toilet tank into a pair of compartments. A valve assembly is associated with the damming wall which can be moved to either permit discharge of both compartments simultaneously or to permit discharge of only a single compartment.

Abstract: Improvements applicable to dual flush devices for saving of water in toilets. Included are improvements in float designs, a positioner for flapper/ball valves, surface tension reduction features, novel float retaining means, triggering means for dual flush devices, pushbutton operation of dual flush devices, and a method for traversing the toilet tank wall with controlling means for dual flush devices.

Abstract: The invention provides a device for converting a single volume cistern into a selective volume cistern adapted to selectively allow both low volume and high volume flushes wherein the single volume-cistern is of the type having a water inlet, a water outlet, a valve mechanism operationally linked to a float lever arrangement for controlling the amount of water flowing into the cistern, a flush actuating means and a flushing mechanism operationally linked to said water outlet, said device comprising a hollow vessel provided with an opening at its upper end for the entry of water therethrough and being adapted to be inserted into the flushing cistern in a first normally closed rest position which at least partially surrounds the flushing mechanism and forms an open ended water column extending above and around said water outlet to exclude a portion of the water in said cistern from passing through said water outlet while said vessel is in said first position for low volume flushes and wherein at least a section

Abstract: This invention provides a flush regulator for use in a toilet flush tank, in order to regulate the outflow through the outlet pipe in such a way that less water is used per flush than normally is the case. The regulator includes a gripping means for attaching to the vertical stem which is screwed into the standard ball valve, and the gripping means supports two upright post members from which upwardly open cups are supported. The cup members are wholly to one side of their respective post members, and are positioned such that rotation of the regulator with respect to the bracket normally supporting the stem will bring one of the post members into contact with the bracket, rather than a cup member. By insuring that the cup members do not contact the bracket, interference with the intended vertical motion of the regulator, ball valve and stem is avoided.

Abstract: A flush water conserver adapted for easy retrofitting to existing standard toilet flush tanks is disclosed. The standard trip lever fixed to the pivot shaft of the toilet operating handle is replaced with a trip lever mounted on a pivot which is located between the operating handle pivot shaft and the adjacent sidewall of the flush tank. A rocker is affixed to the operating handle pivot shaft. This rocker is located below the new trip lever and the new trip lever rests on it. Thus, the new trip lever is raised when the operating handle is rocked in either direction. A control float is provided, and a stop is affixed to the flush ball stem. The stop is so constructed and located that when, during a flushing operation, the water in the flush tank has only partially receded, the weight of the control float is brought to bear on the stop, and thus the flush ball is pressed toward its seat while the control float continues to drop with the receding water.

Abstract: A control system for a toilet flush valve includes an automatically controlled vent valve for controlling the venting of the flush valve to provide a long flush or a short flush controlled by a combination of the toilet flush handle and a float controlled latch within the tank.

Abstract: A regulatable flush valve for tank type flush toilets includes a piston-cylinder dash pot, a weighted (fluid filled) plug/valve, a cylindrical overflow tube and a fluid vortex generating element secured in a coaxial arrangement vertically above the outlet of the toilet tank. The piston and plug/valve secured to the overflow tube are lifted from a normally closed position by a conventional pivoting handle mechanism. The piston-cylinder dash pot determines the water volume of a particular flush by controlling the rate of descent of the weighted plug/valve. The vortex generating element works in combination with the walls of the raised plug/valve to generate an energetic fluid vortex as the water flows from the tank into the toilet bowl. The vortex generated by the generating element is complementary to vortex generating elements within the toilet basin to increase washing action in the toilet bowl. The above combination of elements significantly reduces the volume of water required for complete flushing action.

Abstract: This invention relates to flush tank type toilets and is a device by which a long or short flush cycle may be selected by manipulation of the flush lever handle. The conventional flush uses the full contents of the flush tank and is selected when solid waste must be flushed through the toilet. The short flush uses a portion of the flush tank contents and is selected to conserve water when liquid waste is flushed. This device controls the lifting of the outlet stopper by providing float operated cam member (or members) acting on a rod link connected to the flush lever which lifts the stopper, holding the lever and stopper in the lifted position. When the water level in the tank drops below the float, the cam releases the rod link and the stopper will be force-seated into the discharge outlet of the tank by the water remaining in the tank.

Abstract: A dual toilet flushing system provides a first volume of water for flushing when a handle is rotated to a first extent. The system provides a second volume of water, different from the first, when the handle is rotated to a second extent, different from the first.

Abstract: A toilet flush control is provided which is capable of dispensing different amounts of water and which comprises a rod flexibly attached to the outlet valve and loosely confined at its upper end. A floating ball slides down the rod as the water level falls and pushes the valve closed for a short flush. In a particular embodiment the ball is held at the top for full flush when the toilet seat is down and is released when the toilet seat is raised.