Abstract: Some embodiments include a fluid valve assembly with an outlet base dimensioned to be positioned through a drain in a fluid tank, and a float assembly including a moveable float. The moveable float can form a fluid-tight seal at a first end when the moveable float is coupled to the outlet base, and a flow opening when the moveable float is at least partially decoupled from the outlet base. Some embodiments include a housing positioned with the moveable float, where the housing encloses a suction device coupled to a moveable piston. Some embodiments include an actuable diaphragm positioned in the outlet base, and a compressed air tube or passageway coupled to one side the actuable diaphragm. In some embodiments, the actuable diaphragm is configured and arranged to be actuated by compressed air to move the moveable piston.

Abstract: A discharge valve apparatus includes a discharge main body, disposed above a flush water tank discharge port, for opening and closing the flush water tank discharge port by the up and down motion of a valve body disposed inside a casing; wherein the discharge main body includes an attachment portion allowing an operating wire extending from a wire pull-up operating apparatus to detachably attach to a valve body portion.

Abstract: A water conservation device for use within a toilet is disclosed. In at least one embodiment, the device includes a connector having a base adapted for connectivity and placement adjacent to a traditional pole assembly and proximate to an opening valve within a tank of the toilet. In at least one embodiment, the device includes a flexible pressure arm integrally formed with the connector base and adapted to couple to the opening valve within the tank of the toilet and adapted to provide a pressure to the opening valve to lessen overall water utilized in each flush of the toilet and thereby conserve water. The water conservation device is adapted for either a total or partial flush of the toilet as selected by a user.

Abstract: A continuous water level controller includes a base member, a sleeve mounted in the base member, a piston assembly and an actuating linkage. A stopper is attached to one end of the shaft in the base member to close the outlet of the base member. A piston is slidably received in said sleeve and securely attached to the shaft. A spring is mounted around the shaft between the stopper and the piston. The time the outlet is open is controlled by the restitution force of the spring and the siphonage between the piston and the sleeve. Consequently, the distance the piston travels controls the volume discharged from the outlet to achieve the goal of continuous control.

Abstract: The refill device is used with water-saving flush valves which retrofit into existing toilet tanks. These valves normally do not allow enough time to refill the bowl to its proper level. This diminishes their effectiveness and efficiency. The refill device is depicted here on a two-level valve of the inventor's previous patent. It comprises a chamber (40) between a valve (20) and a plate (34) which rotate up off of an outlet (22). As the valve is lifted the chamber contracts. After upper float (28) or lower floats (66) allow the valve to drop, water pulling down on the valve draws water into the chamber. The water pulls a flap (54) shut over a hole (56) in the plate. The plate then supports the chamber which holds the valve slightly open, permitting a predetermined amount of water to flow under it to refill the toilet bowl. Water seeps under the flap at a controlled rate allowing the valve to completely close.

Abstract: A water discharge assembly includes an outlet having a neck extending from a top thereof and an overflow pipe is connected to the outlet. A control member has a top and a tubular member extending downwardly from an underside of the top, wherein the tubular member has at least one opening defined through a periphery thereof. The tubular member is movably inserted in the outlet with the underside of the top movably in contact with a top edge of the neck. A tube is fixedly disposed above the control member and has a top portion. A slot is defined in a periphery of the tube and located near the top portion and a cover is pivotally disposed to the tube so as to cover the slot. A spring and a disk are respectively received in the tube, the disk having a tiny passage defined longitudinally therethrough. A rod extends through the top portion of the tube and the spring, and the disk is fixedly mounted to the rod which is fixedly connected to the top of the control member.

Abstract: A tank device for flushing a toilet bowl includes a tank body for storing toilet bowl-flushing water. The tank body has an opening at the bottom. One or more support arms are arranged within the tank body and are pivotally mounted to supports. A valve body is secured to one end of the support arms. The valve body comes into close contact with the opening of the tank body. A delaying structure for delaying a motion of the valve body is attached to the support arms. An activator for pulling up the valve body is fitted to the tank body. Delaying the valve closing motion of the valve body allows the stored water within the tank body to be used as flush water for the toilet bowl, until the stored water drops near the bottom.

Abstract: A flush valve of a toilet that includes an internal valve piece and an external valve piece. The external valve piece is circular and is installed inside a circular hole which includes a circular flange that engages the internal valve piece. A rear side of the internal valve piece includes a resilient portion formed from gelatinous material so that the internal valve piece serves the purpose of delaying the reset action. Basically, in the first stage the flush handle is rotated by the user to open the internal valve piece. Thus, the drain rate of the water box is slower. In the second stage, the flush handle further is rotated to a position to engage the internal circular flange of the external valve piece so as to open the external valve piece. Therefore, the drain rate becomes much faster. By the two stage flushing process, the user can regulate the drain rate, thus conserving water.

Abstract: The Two-Level Flush Valve retrofits into standard toilet tanks replacing the flush valve and pull cord. Depressing the toilet handle through the usual first resistance lifts a non-buoyant valve (20) open. It is held open by an upper float (28) fastened onto a pull cord (24). When water lowers to the level of upper float (28) the float drops, allowing the valve to close. This accomplishes a short-duration flush that clears liquid waste from the toilet bowl and saves about a half tank of water. Depressing the handle through a second resistance causes valve (20) to pull a carriage (32) up and out of a latch (52). Lower floats (40) on carriage (32) hold valve (20) open until the tank is almost empty. This accomplishes a full flush that ensures that solid waste is flushed out without leaving dirty water in the toilet bowl. A valve delayer (62) holds valve (20) slightly open for a few seconds to allow complete refilling of the toilet bowl.

Abstract: A selective volume flush apparatus (10) for use in a cistern contains two valves, a first valve (12) with an outlet opening into the discharge outlet of the cistern and an open end configured to sealingly engage a first valve seal (18). The valve seal (18) is attached to a lifting device (22) and the open end of the valve (12) is positioned at a height from the cistern floor to facilitate the flush of a smaller quantity of water. The second valve 14 includes a diaphragm 26 positioned slidingly movable in a cylinder and attached to a valve seal (20) at the lower end and to a lifting device (24) at the upper end. The valve seal sealingly engages upon an outlet opening 68 connected to the discharge outlet (28) of the cistern. Activating the second valve seal results in a full volume flush.

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 device controllable for discharging a desired amount of water after use of a toilet is provided with a cylinder supported within the tank, a piston slidable in the cylinder and divides the inner space thereof into an upper chamber and a lower chamber with variable volumes, on the piston there are provided with through holes for communicating these two chambers, and a flexible baffle member is attached to the bottom surface of the piston and capable of admitting the water to flow from the upper chamber into the lower chamber.

Abstract: A partial flush apparatus, for use in conjunction with a conventional flush toilet, utilizes a pneumatic time delay mechanism for partially flushing the contents of the water tank into the toilet bowl. An extension member is secured to the conventional flush handle lever arm and a cable extends between the extension member and a plunger of the pneumatic time delay mechanism. When depressed, the plunger lifts the extension member and thereby partially opens a flapper valve at the bottom of the water tank for a predetermined time. The pneumatic time delay mechanism includes a spring for biasing the plunger to a released position after the plunger has been depressed. The plunger incoporates a one-way valve for facilitating movement of the plunger to the depressed position. The plunger also includes a longitudinal bore forming part of a fluid conducting path that controls the return of the plunger to the released position.

Abstract: This invention, is a multi-function closet stool, which can really serve the purpose of automatic timing, measuring pressure, flushing and saving water. When one sits on the seat of closet stool, the driving piece pulls the driving steel cable to make timing and piston assembly simultaneously actuate and control arm sandwich on top of a movable piece in the sleeve. When one discharges his urine and stands up, the rear part of seat of closet stool will rebound promptly by the spring; meanwhile, the timing unit begins to count time, then, the driving arm makes the control arm release the movable piece in the sleeve by means of the pulling of timing unit and move upwards by the elasticity of spring. A rubber ring compresses air in the sleeve, the high velocity air will instantly rush in air container through a hole passage, pipe joint, filter and pipe. The air will open a movable lid for the purpose of water-flushing.

Abstract: This invention comprises an improved hydraulically operated flush valve for toilet flush tanks and similar devices. Its main components are a cylinder and piston assembly positioned with its longitudinal axis directly above and vertically aligned with the vertical axis of the outlet or flush tube of the flush tank. The moveable piston within the fixed cylinder acts as the moving and sealing element of the flush valve. By means of an inner valve connected to the flush tank operating lever hydraulic force is caused to lift the piston thereby opening the flush valve. There is no direct mechanical connection between the operating arm and the flush valve, and there are no chains or hinges. There is a positive permanent flush valve alignment and a minimum of friction. In addition, the amount of water used per flushing action can be regulated to prevent water and energy wastage.

Abstract: A two-stage hydraulic flush device for use in regulating the amount of water released when flushing a conventional water closet. The flush handle of a conventional water closet is actuated so as to unseat a drain plug in the water tank, and the piston of a hydraulic cylinder which is submersibly disposed within the water tank is then displaced to one of two distinct positions. As the piston is displaced, water is admitted into the cylinder below the piston. When the flush handle is released, water is expelled from the cylinder at a controlled rate as the piston is forcibly returned by a spring mechanism to its initial position. As the piston returns, the lifting arm is actuated so as to reseat the drain plug. The water outlet flow rate determines the duration of the flushing action, and two distinct piston positions define the two flush stages.

Abstract: This invention provides an attachment for use with a flush toilet mechanism with the usual stopper and a cylindrical float member horizontally disposed, both being fixed with respect to each other and being swingable about a horizontal axis parallel with the cylinder axis. The attachment effects a saving of water used in flushing, and includes an upwardly open receptacle pivotally mounted with respect to a frame element, the latter being attached to the flush toilet mechanism such that the vertical location of the frame element with respect to the flush toilet mechanism can be selectively adjusted.