Abstract: A device for adapting a flapper of a flush valve of a toilet tank to a valve base with a lateral overflow pipe, includes a fastening element for fastening to the lateral overflow pipe, which has a ring or cylinder shape with a low height and which includes a pair of recesses able to house lugs arranged in the lateral overflow pipe, and which further includes a pair of lugs arranged in opposite positions in a section of the fastening element; and a flapper made up of a flapper body and a pair of arms arranged in the upper portion of the flapper body, the end of each arm including a housing adapted to house the lugs of the fastening part.

Abstract: Flush valve assemblies are described herein which include a valve body; a flush valve cover detachably connected to a flush line; a pivot mechanism capable of opening and closing the flush valve cover upon actuation; wherein the flush line is connected at a first end to a flush actuating device and at a second end to the flush valve cover, the line being capable of raising and lowering the cover upon actuation; and a float situated above the cover and connected to the flush line at a point between the first and the second ends of the flush line or by a separate float line connected to the cover. The float is sufficiently buoyant and capable of resisting the force of flowing water and keeping the flush valve cover open to allow flush water to pass through the valve body before closing the cover when the valve body is installed on a toilet.

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 toilet tank flushing system including a ballcock valve for maintaining a storage level of water in the tank, a tank valve to release stored water on demand, and a linkage system which requires a reduced physical effort to initiate flushing. A hollow, open-ended closure for the tank valve enables a large cross-section area of discharge port to be used, and which can pass bowl refill water during the flushing sequence.

Abstract: A flush tank includes a water entrance to receive water from a water reservoir, a water outlet for discharging the water and controlled by a valve member, and a water inlet disposed in the upper portion to receive waste water from waste water suppliers. A valve device is attached to the lower portion of the tank member, to control and to allow little water to flow into the tank member via the water entrance. Another valve device is attached to the upper portion of the tank member, to control and to allow the waste water to flow into and to fill the tank member via the water inlet.

Abstract: A dual flush valve that can be operated in a partial flush mode to release only about half of the tank water to the toilet bowl, or in a full flush mode to release almost all of the tank water, is of simple and reliable construction. For a partial flushing a chain device (64, FIG. 2) connected to the outer end of the flush member, is pulled to raise the flush member only a small amount (to 14C), and a release mechanism (90) is connected to a separate location on the flush member to keep it up until a float (110) senses that about half of the tank water has been released. The float pivots an arm (102) to disengage a latch 94 on the arm from a catch (96) on the yoke of the flush member to release it. The float slides along the refill/overflow tube (26).

Abstract: A toilet flushing apparatus designed to prevent excess loss of water that may happen when the flush valve stays open as the inlet valve is putting water into the tank. The initial flushing lifts the flush valve which acts in conjunction with a counter-weight and controller arm attached to the float ball arm. The controller arm supports the float ball and thus allows the intake valve to remain in the closed position until the flush valve has closed completely, at which time the float ball is lowered and water is let in to the tank.

Abstract: A toilet flushing apparatus (10) that conserves water by providing either a low-level water flush for liquid waste or a full-level flush for solid waste. The apparatus (10) consists of a water-level release assembly (12) that is attached to a toilet overflow tube (62) at the desired low water level. The assembly (12) includes an eccentric element (12c) that decreases or increases a hose space (12m) located between the element and the overflow tube. Within this space is located an air vent hose (16) that has its lower end attached to a toilet flapper valve (14) and its upper end to a full- flush device (20). When the water level is above the assembly (12), the space (12m) decreases which occludes the hose (16) allowing the flapper valve (14) to remain buoyant and the flush to continue. When the water level drops to the level of the assembly (12), the space (12m) increases which removes the hose occlusion allowing the air vent hose (16) to vent which then allows the valve to drop and stop the flush.

Abstract: An improvement is provided for toilet flush valves on tanks which contain insufficient water to flush properly, which leads to waste of water by double flushing. The improvement enables in-field modification of the flush valve to substantially completely empty the tank. A closing delay device (42, FIG. 1) which includes a cup (64), is attached directly to the top of the tank ball (32) for easy installation, and is tall enough so that when the tank ball is pivoted to the fully opened position the cup is pivoted to a side of the pivot axis (28) opposite the tank ball to delay closing of the flush valve. The tank ball is formed of soft rubber and has an upwardly extending tubular extension (74) with an annular groove therein, which closely receives an annular flange at the bottom of the delay cup device.

Abstract: A flush control device for controlling the flush operation of a flush toilet having a cistern, a feed water control mechanism fluidly coupled to a water supply pipe and a flush water control mechanism fluidly coupled to one end of a flush pipe, the opposing end of which is connected to a toilet bowl. The flush control device includes a float coupled to the feed water control mechanism for operating the mechanism to stop water supply as the float reaches a predetermined water level. At the end of the flush operation, the descent of the float will operate the flush control mechanism to end the flow of water from the cistern to the flush pipe and operate the feed water control mechanism to supply water into the cistern again.

Abstract: An improved toilet with a bowl and a flusher wherein the improvement includes a toilet water tank which contains an insert for creating a first compartmemt filled with a deodorant and a second compartment filled with a fluid, and an actuator which is pivotally mounted on the insert and has an opened position for allowing a predetermined amount of the deodorant to pass from the first compartment into the second compartment and a closed position for preventing the deodorant from passing from the first compartment into the second compartment so that when the actuator is in the opened position the predetermined amount of the deodorant passes from the first compartment into the second compartment and mixes with the fluid in the second compartment to provide deodorizing for the toilet.

Abstract: A dual flush mechanism which allows the user to select either a full or partial flush, while using a single flush valve. A full flush is obtained by a first handle which lifts a flush valve actuating arm to unseat the flush valve in a conventional manner. For a partial flush, a second handle rotates and lifts a partial-flush control arm which extends beneath the flush valve actuating arm. Upward movement of the control arm is limited. Release of the second handle permits the control arm to rotate downwards until stopped by the engagement of a portion of the control arm with a transversely extending rack extension, thereby keeping the flush valve in an unseated position. As the tank water level lowers, a partial-flush float also lowers, pulling down the end of a lever which pivots with an attached pinion gear, toothed with a rack to linearly retract a rack extension from engagement with the control arm. This permits the control arm to drop, reseating the flush valve.

Abstract: A floatless outlet valve comprises a valve body having a vertically disposed overflow tube and a valve seat formed integrally at the lower end of the tube. A valve assembly is pivotably connected to the terminal end of the overflow tube by the rear end portion of arm extensions thereby allowing valve of the disc to be closable and operable with respect to the valve port. A cup-like control member with a valve rod is capable of discharging water in the tank completely or partially in accordance with the user's need.

Abstract: A flapper valve assembly including an adapter member and a flapper valve member. The adapter member includes a collar portion, a pair of trunions projecting radially outwardly from diametrically opposed locations on the collar portion, and a mounting portion extending rearwardly from the collar portion and defining an elongated slot. The flapper valve member includes a sealing disc for sealing coaction with the valve seat of the outlet passage of the tank, a float bowl extending integrally and centrally downwardly from the sealing disc for positioning within the outlet passage, and a pair of arms extending rearwardly from the sealing disc and including mounting apertures sized to button over the trunions on the adapter member to mount the valve member for pivotal movement on the adapter member between opened and closed positions relative to the valve seat of the outlet passage.

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 demand type flush tank control for saving water by the utilization of a water release valve of the flapper type in the water storage tank of a toilet, with such flapper valve being non-buoyant such that it will close off the flow of water from the tank into the toilet the instant the flush handle has been released by the user. In this way, the use of the entire contents of the tank is prevented, except on those occasions where a full tank is actually needed. My novel flapper valve has no air pocket below the sealing area, as do conventional flapper valves, and it is non-buoyant in that a cavity is provided in the upper part of the valve, through which water can enter a part of the valve body. Accordingly, my novel flapper valve readily returns to its seat the moment the toilet handle is released, thereby effecting a daily savings of many gallons of water.

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 device for converting a single volume cistern into a cistern allowing both low-volume and high-volume flushes. The device includes a hollow vessel inserted in the cistern and at least partially surrounding the flushing mechanism and water outlet. An opening at the upper end of the vessel for the entry of water and at least one selectively openable port comprising a hinged door having a retaining lever arm attached at one of its ends to the door are provided. The arm and door are movable between a first closed position to a second displaced open position. The vessel forms an open ended water column extending above and around the water outlet to exclude a portion of the water in the cistern from passing through the outlet while the door is in the first position for low volume flushes. The door and the lever arm move to the second displaced open position with the lever held and restrained by interaction with a standard water-level responsive part.

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.

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 device usable in a toilet flush tank having a bottom wall opening comprises:(a) a tubular body adjustably located in drain communication with said opening and having an inlet spaced above the level of said opening so that only tank water above the level of said inlet will flow downward through said body during the toilet flush cycle,(b) the body containing a venturi to accelerate said flow.