A dual-flow flapper valve assembly is presented having a flapper and a stopper that extends through an opening in a central portion of the flapper. In some embodiments of the present invention, a guide assembly extends downwardly from a bottom of the flapper and the stopper having a shaft that is received and extends through the flapper and the guide assembly, such that a top end of the shaft extends above the flapper and a bottom end extends below the guide assembly. In some arrangements of the present invention, the shaft has a plug adjacent the top end of the shaft and a stop at the bottom end.

A controlling mechanism for a three-way valve includes a transmission axis movably received in the valve and having first teeth formed on a free end thereof A rotation axis is movable and intermittently rotatable in the valve and having second teeth integrally formed on the rotation axis to correspond to the first teeth. A spring is received inside the valve to provide a recoil force to the rotation axis to maintain the second teeth of the rotation axis to be in contact with the first teeth of the transmission axis so that movement of the transmission drives the rotation axis to move and rotate simultaneously for selectively blocking the inlet of the valve.

A valve for saving water and energy in a shower uses a wax motor as an actuator. Below the activation temperature of the wax motor, the valve is open and the shower water flows. When the water reaches the activation temperature, the piston of the wax motor extends and turns off the water in the shower. The person taking the shower then can restore flow by turning a handle. The shower can then be turned off and on at will by turning the handle manually. When the valves cools down, it resets automatically.

The present invention relates to a flushing device for a direct-outlet type toilet bowl, including an inner housing wherein cleansing water is separately stored and installed inside a water tank of the direct-outlet type toilet bowl in order to minimize a fixed amount of the cleansing water used for cleansing urine and feces by being commonly installed in the direct-outlet type toilet bowls with various capacities.

A toilet assembly includes a pedestal, a tank disposed on the pedestal, and an inlet chamber formed in the pedestal. The inlet chamber includes an inlet portion comprising an upstream end defining an upstream inner diameter, and a downstream end defining a downstream inner diameter less than the upstream inner diameter. The inlet chamber further includes an elbow extending downstream from the inlet portion, the elbow defining an elbow diameter substantially the same as the downstream inner diameter. The inlet portion is configured to receive water from the tank. The toilet assembly further includes a flush valve disposed in the tank, the valve defining a valve outlet disposed below the tank and in the inlet portion of the inlet chamber.

Trench drains are hollow or grid-like bodies which can be installed in the ground and are intended to receive precipitated surface water and slowly dissipate it into the ground or to store the water. These hollow or grid-like bodies are constructed from individual drainage bodies which must be firmly connected together. Drainage body connecting elements are proposed for connecting drainage bodies, which comprise two pegs which are connected via a web and can each be inserted in a receiving orifice of a drainage body so the two drainage bodies can be connected together via the web.

A flush valve assembly for use in a toilet tank that has a drain opening, a valve seat at the drain opening, and a valve member movable relative to the valve seat, together acting as a flush valve. The valve member has an internal chamber for containing water to reduce buoyancy of the valve member in water, so that the valve member may descend through water to reach the valve seat for sealing engagement with the valve seat. The valve member has an inlet for admitting water into the chamber, and an outlet for discharging water from the chamber. A toilet flush system includes the toilet tank, a tank refill mechanism for refilling the toilet tank with water, the flush valve assembly in the toilet tank, and an operating unit for operating the flush valve assembly.

A flow restriction device and/or a sanitary shower equipped with the flow restriction device includes a restrictor body composed of multiple web planes disposed successively in an axial direction and filling a passage cross-section of the restrictor body perpendicular to the axial direction. Each web plane is composed of a plurality of webs extending mutually in parallel and perpendicular to the axial direction, spaced from each other thereby leaving web intermediate gaps. Webs of two directly adjoining web planes extend non-parallel to each other. The device is useful in overhead showers, for example, and limits noise.

An operating device for a flush water tank assembly includes: a rotary shaft, an operating handle, an operating wire, and a drive unit, wherein the drive unit includes: a rotary member, a rotary winding member, a locking unit for mutually locking the rotary member and the rotary winding member when the rotary winding member rotates in a forward rotational direction from operating position P1 and reaches operating position P3, and a lock release portion for releasing the lock between the rotary member and the rotary winding member when the rotary member and the rotary winding member rotate in a forward rotational direction from operating position P1 and reach operating position P3.

A multifunctional restrictive valve for controlling the flow of water therethrough. The valve has a main body with a flow channel through the main body. The main body receives water upstream thereof through an inlet port and passes it out through an outlet port at the downstream end of the body. A flow control assembly is located in the flow channel and includes a temperature sensor/actuator acting on a piston to move, when the temperature sensor heats up the piston, to block water flow control ports. The flow control assembly also includes an override feature wherein the piston is located within a slide and the flow control ports are located in the slide. By moving the slide away from the piston when the piston is blocking the flow control ports, the temperature sensor and piston may be overridden and flow may resume through the main body.