Abstract: Water dispensers are disclosed which include a Sabbath function. When activating the Sabbath function, water refill of the hot water reservoir tank is prevented and the heating of the water in the hot reservoir tank is modified to provide a constant heating at a less than boiling temperature.

Abstract: A valve body and a float body are combined by respectively coupling two or more coupling parts provided on one of the valve body and the float body to coupled parts provided on the other of the valve body and the flat body in a state allowing upward and downward movements of the valve body. During descent of the float body, one coupling part of the two or more coupling parts is caught on the coupled parts ahead of the other coupling parts whereby the valve body is tilted, and the other coupling parts restrict the tilting of the valve body.

Abstract: A fuel cutoff valve is furnished with a casing defining a valve chamber, and a float mechanism housed to be able to rise and fall in the valve chamber. The casing is furnished with a closure plate situated in the space above the valve chamber and in a facing arrangement with a connecting passage. The closure plate is furnished with a vent hole that has been formed so as to divert the passage from the connecting passage to a second pipe line, and with a barrier wall that is situated in opposition to a first pipe line and that has been formed so as to divert the passage from the first pipe line to the second pipe line.

Abstract: An under the counter ice making machine having a top opposite a bottom, a front opposite a back, and two sides that collectively define an interior. A casing defines exterior-most surfaces of the ice machine. An ice bin is mounted inside the casing of the device, wherein a compressor is mounted inside the ice machine and below the ice bin and an evaporator assembly is mounted inside the casing and above the ice bin. A gear motor is operably connected to the evaporator assembly and is also mounted above the ice bin.

Abstract: A chiller system (10) includes a compressor (12), a condenser (14), a cooler (20), a bubbler tube (22) and a float valve (18) within the condenser (14). A solenoid valve (26) is disposed within the bubbler tube (22) and is adapted to selectively open and close the float valve (18) such that a refrigerant flow to the cooler (20) is throttled. The throttled refrigerant flow results in a reduction in system pressure which further results in a higher viscosity oil delivery to the compressor (12) by an oil management system (30).

Abstract: The present invention provides a water ingress detection system (1) suitable for use in indicating the ingress of water (12) onto a pipe (2) or vessel inside a casing (3), from outside. The system (1) comprises a deflector (4) secured to the underside (7) of the pipe (2) inside the casing (3) provided thereon, a conduit (8) coupled to the deflector (4) for leading water (12) away from the pipe (2) to a water-sensing indicator device (13). The indicator device (13) has a signal output portion (17) disposed externally of the casing (3) for signalling the presence of water (11). The deflector (4) is formed and arranged for intercepting water (12) running along the exterior (7) of the pipe (2) inside the casing (3) and diverting it into the conduit (8), and the conduit (8) and water-sensing indicator device (13) are formed and arranged so that the indicator device (13) can sense substantially only water (12) intercepted by the deflector (4).

Abstract: The fuel tank ventilating device includes a fuel cutoff device, and a connector pipe connecting the fuel cutoff device with a canister. The fuel cutoff device includes a first fuel cutoff valve, a second fuel cutoff valve, and a positive pressure valve; the first flow pipe and the second flow pipe are connected to a third flow pipe by a connecting part, and are connected to the canister. With the first fuel cutoff valve in a first submersion state, fuel that has collected in the first flow pipe will be returned to the fuel tank on the basis of a differential pressure between tank internal pressure and the pipe internal pressure bearing on the fuel inside the first flow pipe. With the first fuel cutoff valve in a submersion state, fuel that has leaked into the second flow pipe will not reach the connecting part.

Abstract: A detergent releasing device for toilet water tank includes a case connected to inside of the water tank and a releasing unit is connected with the case. The releasing unit includes a guide member with a hollow central tube in which an operation rod is movably inserted. The central tube includes two slots located close to two ends thereof. The operation rod includes an annular space in which a fixed amount of detergent is stored via one of the slots. The operation rod is connected with a float member which moves the operation rod up and down within the central tube. The fixed amount of detergent released when flushing.

Abstract: Disclosed herein are water control devices having a normally closed valve preventing water flow upon breakage of an outer mechanism having a float weight, that float weight overcoming the resistance of the valve under conditions of non-contact with water, that submerged float weight reducing in apparent weight as seen by the valve actuator. A float weight may be made from a material with about the same density as water, or with heavier materials with voids or pockets having an overall density of water or a substantial density greater than that of air. A control mechanism may be provided that moves independently of the valve, providing for decoupling of the float weight from the valve if the float weight is forced out of position. Detailed information on various example embodiments of the inventions are provided in the Detailed Description below, and the inventions are defined by the appended claims.

Abstract: Provided is a float valve device which allows a valve to be quickly opened when, in a state in which a float has been raised as a result of a rise in fuel liquid level to close the valve, the fuel liquid level is lowered again. The float valve device includes a housing, a float accommodated in the housing, a movable valve adapted to abut a valve seat to close an opening, and a retention frame to retain the movable valve so as to allow the movable valve to ascend/descend by a predetermined distance and to incline with respect to the float. Further, a circumferentially uneven protrusion is formed on a portion where the retention frame and the movable valve abut each other. When the float is lowered in a valve-closed state, the protrusion first abuts the movable valve to impart a lowering force thereto.

Abstract: Valve for the venting circuit of a liquid tank, said valve comprising: a) a main chamber (3) which opens into the tank and is connected via an aperture (14) to the venting circuit (2); b) a float comprising a body (4) and a head (5) capable of closing off the orifice (14), said float being able to slide vertically inside the main chamber (3); and c) a baffle (12) surrounding the aperture (14) and defining a secondary chamber (3?) via the bottom inside the main chamber (3), the dimensions and the shape of the secondary chamber (3?), of the body (4) and of the head (5) of the float being designed so that said head (5) can slide at least partly inside the secondary chamber (3?), while the body (4) of the float cannot do so.

Abstract: A vacuum breaking device includes a housing, a sealing base, a floating cup and a sealing ring. The housing has a liquid inlet, a liquid outlet and an air passageway. The sealing base is installed in the air passageway, and the floating cup is installed in an inner chamber of the sealing base. The sealing ring is fitted around an upper end of the floating cup for properly sealing the outer-air inlet in the upper portion of the sealing base and communicating with the inner chamber. The floating cup has an annular flange for increasing the buoyancy of the floating cup, so that the outer-air inlet may be quickly sealed up. The annular flange has plural air paths, so the vacuum condition may be broken immediately when a vacuum pressure is produced in the device.

Abstract: A plumbing fixture assembly for a toilet tank comprising an upper portion that connects with a valve, a lower portion adapted for engagement with the upper portion, and an attachment pipe that that connects at a first end with lower portion and at a distal end with a supply line.

Abstract: Provided is a float valve device that closes an opening portion by pushing a movable valve by means of a protruding portion formed on an upper portion of a float, in which a problem of a crack and the like of the movable valve can be solved without thickening the movable valve or increasing the movable valve in size. A space in a housing is defined into a lower space and an upper space through an intermediation of a partition wall, and an opening portion is provided in the partition wall. A float is housed in the lower space of the housing so as to be vertically slidable, and to an upper portion of the float, a movable valve is mounted so as to be movable relatively to the float in a vertical direction and a lateral direction. A protruding portion is provided on the upper portion of the float, and a receiving portion on which the protruding portion abuts is provided on a lower surface of the movable valve. A center hole is provided in a center of the receiving portion.

Abstract: An actuation device includes a driving member, a driven member and an actuating arrangement operable for producing a movement of the driving member. The driven member has a seat into which is operatively inserted, with the possibility of relative movement, an engagement part of the driving member. The driving member has a seat which, in at least one position of the actuation device, at least partially faces the seat of the driven member. The two seats are longitudinally extended and the actuation device further includes at least one floating body, capable of moving between the two seats when they face each other at least in part. The driving member and the driven member are configured for preventing accidental or irregular displacements of the floating body, particularly accidental or irregular displacements due to knocks, vibrations and similar mechanical stresses.

Abstract: A front-loading laundry appliance including a housing with a substantially circular housing opening and a door configured to close the housing opening. A substantially cylindrical container is disposed in the housing and is configured to receive laundry for treatment. The substantially cylindrical container has a substantially circular container opening. The laundry appliance also includes a steam generator with a heating element, an inlet opening and a common outlet opening for water and steam. A pump is configured to deliver water to the inlet opening of the steam generator. A nozzle is disposed in an edge region of the container opening and configured to inject water and steam into the interior of the container.

Abstract: The fuel cutoff valve has a first valve mechanism inside a first valve chamber of a casing. In the first valve mechanism, a seat member installs on the upper part of a first float. The seat member has a seat portion which seats in a first seal part facing a first connection conduit; and a valve support portion projected from the lower face of the seat portion in the direction of up and down movement of the first float. The valve support portion is formed so as to be in contact against the upper end of a bottom support portion of a lower cover when the first float is in the down position. With a simple configuration, the fuel cutoff valve affords reduction of impact noise associated with vibration of the float.

Abstract: A fuel feed apparatus includes a sub-tank that is received in the fuel tank, a fuel pump received in the sub-tank and pumps up and pressurizes fuel in the sub-tank for supplying the fuel to the outside of the fuel tank, a jet pump disposed to supply fuel in the fuel tank into the sub-tank, and a recirculation passage defined in the sub-tank and communicating between the inside and the outside of the sub-tank. The jet pump includes a suction port to communicate between the inside and the outside of the sub-tank and a jet nozzle that jets fuel toward the suction port, so as to generate suction power by which fuel in the fuel tank is suctioned from the first suction port into the sub-tank. Moreover, the recirculation passage that opens at a lower edge thereof close to the upstream side of the suction port of the jet pump and opens at an upper edge thereof below the upper edge of a sidewall of the sub-tank.

Abstract: An automatic shut-off valve suitable for watering of batteries is disclosed. The valve is formed by a chamber having an inlet and an outlet. A seat surrounds the outlet. A spring biased piston within the cylinder is movable into and out of sealing engagement with the seat to open and close the valve. A flow deflecting surface is positioned between the inlet and the piston. Water flow is directed around the piston to eliminate drag that would force the piston into engagement with the seat. A second deflector surface directs flow against the piston to bias it open. An actuator cup, fed by a nozzle extending from the outlet, draws the piston into engagement with the seat when the cup is sealed by engagement with the electrolyte surface. The valve may also employ a float actuator connected to the piston.

Abstract: A first valve port 12 is so set as to have the seal diameter X smaller compared with that of a second valve port 14. Because the pressure reception area of a first valve body port 16 is small, the attachment force of the first valve body portion 16 is reduced with respect to a valve seat 12a. It thus becomes possible to open the first valve port 12 as the attachment of the first valve body portion 16 is released with respect to the valve seat 12a without increasing the weight of the float 15. After the first valve port 12 is opened, the pressure difference is reduced between inside of a fuel tank 20 and a connecting pipe on the side of a canister, and the attachment force acting on a second valve body portion 22 is also reduced. In this manner, the second valve body portion 22 is opened with certainty. As a result, it becomes possible to go through the operation of opening the second valve port 14 that is larger in diameter than the first valve port 12 without increasing the weight of a sub float 21.

Abstract: Described is a plumbing fixture assembly 10 for a toilet tank 14 comprising an upper portion 24 that connects with a valve 18, a lower portion 26 that is adapted for engagement with upper portion 24, and an attachment pipe 28 that connects at a first end 64 with lower portion 24 and at a distal end 66 with a supply line 16.

Abstract: A float-responsive valve includes a valve actuator that is selectively responsive to operation of a float to move from a first position to a second position in which the valve actuator holds the valve element in its open position. When the valve actuator is in the second position thereof, fluid pressure that would otherwise tend to force the valve element toward its seat is essentially incapable of closing the valve element. Preferably, a force vector applied through a flapper-type valve actuator forms an essentially nonnegative, more preferably generally collinear, angle with a bisector line passing through a pivot axis of the valve actuator and a primary contact point between the valve actuator and the flapper.

Abstract: The aim of the invention is to block the water outflow from a light liquid separator comprising an outflow ascending pipe (1) with a lower inlet (3), and a horizontal output pipe (2). To this end, a blocking element (4) displaced by a float (9) is provided. The float (9) and the blocking element (4) are displaceably guided on a fixing element (11) that can be detachably associated with the water outlet (1).

Abstract: A method is disclosed for the manufacture of a float (30) comprising the following steps: providing a mould (10) having a first enclosure (12) opening into a second enclosure (14) of greater dimensions than the first enclosure (12), and an inlet (16) into the first enclosure (12), the first and second enclosures (12, 14) together defining the shape of the float (30); injecting a mixture comprising plastics material and blowing agent into the inlet (16), such that the mixture passes through the first enclosure (12) and then into the second enclosure (14); and causing or allowing the mixture to set, thereby forming the float (30). The float (30), the mould (10) and a fluid storage chamber (60) including the float (30) are also disclosed.

Abstract: Drop tube assemblies are provided and adapted for use with a liquid reservoir. One exemplary drop tube assembly includes a first conduit, a second conduit and a valve assembly. The valve assembly includes a valve member, a float, and a linkage device pivotally connected with respect to the valve member. The linkage device is adapted for communication with the float such that the float may facilitate in adjusting the position of the valve member with respect to a first end portion of the second conduit in response to a liquid level in a liquid reservoir. The drop tube assembly further includes an adjustable stop member engaging the second conduit and adapted to engage the linkage device to limit a movement of the linkage device.

Abstract: An apparatus and method for the balancing of fuel among tanks in a circulating fuel system. The tanks in the system have both a draw conduit and a return conduit mounted to and extending into the tank. Flow restriction devices are mounted in both the draw and the return conduits and are controlled by a fuel level detection system, which detects the fuel in the tank.

Abstract: A float-responsive valve includes a valve actuator that is selectively responsive to operation of a float to move from a first position to a second position in which the valve actuator holds the valve element in its open position. When the valve actuator is in the second position thereof, fluid pressure that would otherwise tend to force the valve element toward its seat is essentially incapable of closing the valve element. Preferably, a force vector applied through a flapper-type valve actuator forms an essentially nonnegative, more preferably generally collinear, angle with a bisector line passing through a pivot axis of the valve actuator and a primary contact point between the valve actuator and the flapper.

Abstract: An automatic liquid shut-off system for a vessel and having a valve in a liquid passageway to control the level of liquid in the vessel so as to prevent an overflow of the liquid. The shut-off system comprises a conduit extending exterior from one wall of the vessel and in liquid communication therewith. A float is disposed in the conduit, and a stem extends from the float co-axially with the conduit, and is affixed to the valve to actuate the valve to a closed position. When the liquid level in the vessel rises to an undesired level, and the liquid in the vessel therefore reaches a level approximately the level of the float, the liquid acting upon the float will actuate the valve to a closed position, thereby shutting off the liquid.

Abstract: A method is disclosed for the manufacture of a float (30) comprising the following steps: providing a mould (10) having a first enclosure (12) opening into a second enclosure (14) of greater dimensions than the first enclosure (12), and an inlet (16) into the first enclosure (12), the first and second enclosures (12, 14) together defining the shape of the float (30); injecting a mixture comprising plastics material and blowing agent into the inlet (16), such that the mixture passes through the first enclosure (12) and then into the second enclosure (14); and causing or allowing the mixture to set, thereby forming the float (30). The float (30), the mould (10) and a fluid storage chamber (60) including the float (30) are also disclosed.

Abstract: A fluid fill system includes at least one sensor for indicating whether a fluid level in a reservoir is equal to or greater than a predetermined fluid level and a process control. The process control obtains a reading from the at least one sensor at a predetermined interval and increments a counter if the reading indicates that the fluid level is equal to or greater than the predetermined fluid level and decrements the counter if the reading indicates that the fluid level is less than the predetermined fluid level. Process control operates a fluid supply mechanism when a value of the counter moves beyond a predetermined value.

Abstract: A lavatory flush tank silent-operating fill device has a silencer extending along an axis and through which a stream of water flows; a number of channels are defined inside the silencer by a bundle of substantially straight, parallel tubes housed inside the silencer and parallel to the axis, and into which the stream of water is divided; and the flow section of the channels is such that flow of the water inside is substantially laminar.

Abstract: There is provided a silent-operating device for feeding water into a tank, in particular for filling a lavatory flush tank; the silencing effect is achieved by feeding the water through a chamber housing flow deflecting members; the members are perforated members arranged successively and spaced apart in the flow direction inside the chamber, and have respective numbers of through holes; the holes of consecutive members being offset with respect to one another to define a labyrinth path, i.e. a number of winding coil-like or zigzag paths, inside the chamber.

Abstract: A backflow valve has a closure gate that is pivotally mounted for movement between an open position in which the closure gate is positioned on a plane substantially parallel to a longitudinal axis of a flow passage and a closed position in which the closure gate is positioned transverse to the longitudinal axis. The closure gate has a midsection positioned pivot axis and is unbalanced with greater weight being toward the first end. A rotational stop limits pivotal movement when the closure gate is in the open position. A float is secured to the first end of the closure gate. The greater weight at the first end biases the closure gate by force of gravity against the rotational stop and into the open position. The float causes the closure gate to pivotally move to the closed position in response to liquid rising in the flow passage.

Abstract: Liquid, such as milk, enters the sealed container from an inlet at the top of the container and exits through an outlet at the bottom of the container. The quantity of liquid in the container is sensed and a microprocessor calculates the total volume of liquid. During periods of low flow, such as at the beginning and at the end of the milking cycle, the outlet is automatically closed, partially or completely, by a motorized valve connected to the microprocessor, or by a weighted float situated within the container, so as to accumulate the liquid during those periods thereby enhancing the accuracy of the measurement.

Abstract: A backwater valve includes a body having a flow passage extending therethrough with an inlet side and an outlet side. A closure gate is pivotally mounted within the body above the inlet side of the flow passage. The closure gate has an open position above the flow passage and a closed position blocking the inlet side of the flow passage. A float activated locking member is mounted on the body. The locking member has a locking position and a release position. In the locking position, the locking member engages and holds the closure gate in the open position. The float activated locking member is influenced by liquid rising in the body whereby the locking member is carried to the release position when the liquid rises above a preset level and upon release the closure gate closes by force of gravity.

Abstract: A shut-off valve for a tank, including a filling tube with a filling-side valve seat and a tank-side valve seat. The seats being spaced apart from one another in a throughflow direction of the filling tube. A valve body with a sealing element is movable between the valve seats so as to butt against one of the valve seats depending on position of the valve body in the tube. A component is provided for prestressing the valve body toward the filling-side valve seat so as to seal the filling tube in relation to the filling-side valve seat in a rest position of the valve body, the prestressing component being configured so that the prestressing of the valve body can be overcome by flow pressure of a medium which is to be introduced toward the tank-side valve seat.

Abstract: A backflow valve which includes a closure gate pivotally mounted along a substantially vertical pivot axis to one of the opposed sides of the valve body. A closure gate engaging profile positioned in a bottom of the valve body locks the closure gate in the open position. The closure gate is biased into the closed position. The closure gate moves to the closed position upon floating free of the closure gate engaging profile.

Abstract: A valve assembly that is composed of simple parts is described that is used to provide a sump pit water control device that operates due to the level of water within the sump and not by electricity. This valve assembly includes an adapter in the form of a tee-pipe that is capped at one end and attached at the other end to a drain tile pipe entering the sump. The third and remaining end of the tee-pipe is open but has a valve disposed therein that is operable between two positions. A float member is attached to the valve member by way of a cable so that as the water level rises in the sump, the valve member is drawn closed, and when the water level is at a normal or low level, the valve member is biased into an open position by a spring.

Abstract: A water refilling control mechanism for a water tank comprises a main float sliding along an inlet pipe and further having an extruder located at the bottom thereof for connecting with an extension bar and further connecting to a supporting bar and a water valve on top of the inlet pipe. The main float further includes a dual-stair-shape valley atop to accommodate an auxiliary float having a restraint arm with its upper end connecting with a restraint cam located on top of the inlet pipe. By providing a C-shape end to the restraint arm connected engaging the restraint cam with an extruding arm, the auxiliary float can be restrained in the valley by a bump at the lower end of the restraint arm and can be rotated clockwise to release the main float as the water level reaching a substantial height.

Abstract: In an arrangement for limiting the fill level in a fuel tank having a filler neck with a tank inlet end, a valve flap is pivotally supported in the inlet end such that, in an open position, the valve flap is pivoted toward the fuel flow entering the tank during refueling and is connected, by way of a crank arm and a coupling rod to a float which is disposed in an essentially vertical guide tube. The coupling rod extends through the float and has spaced top and bottom stops providing for lost motion coupling between the float and the coupling rod whose weight is sufficient to keep the valve flap in an open position. When the fuel in the tank lifts the float and, after the float engages the top stop, lifts the coupling rod, closing movement of the valve flap is initiated which is then fully closed by the inflowing fuel utilizing the lost motion distance between the float and the bottom stop of the coupling rod.

Abstract: A system to be utilized at a dairy in the distribution of a pumpable food product from a storage tank to a filling machine for dispensing into containers. The system includes a balance tank for storing the product on the filling machine. The balance tank is in flow communication with a storage tank via a product line, and also has a level probe for monitoring the amount of product in the tank. A product pump pumps the food product to a valve mechanism which is also disposed on the product line. A programmable logic controller receives a signal from the probe indicative of the level of the product in the balance tank, and generates a series of signals to the product pump and the valve mechanism to maintain a steady flow of product from the storage tank to the balance tank. In this manner, foaming of the product in the balance tank is eliminated or substantially reduced to acceptable levels.

Abstract: An improved skimming apparatus for skimming a two component liquid includes a housing mounted to a tank below the normal liquid level for the tank, an outlet for pumping fluid from the submerged housing and an intake structure extending upwardly from the submerged housing and defining an inlet for permitting inflow of liquid to the interior of the submerged housing. The intake structure includes an intake tube rotatably mounted to the housing at upper and lower ends. The intake tube rotates in response to variations of the liquid level in the housing, to vary the inlet size and hence the rate of inflow to the housing. An adjuster provides control over the variation of the inlet size, to accommodate different skimming rates for liquids of different temperatures. An intermediate tube surrounds the intake tube, and an outer tube surrounds the intermediate tube.

Abstract: An electric iron includes a soleplate and a housing connected to the soleplate. The housing forms a water reservoir. An opening is formed in an outer wall of the housing. A valve seat is formed adjacent the top of the opening. A float valve having a specific gravity less than one is movably disposed within the reservoir. The valve moves into engagement with the valve seat to prevent the flow of water through the opening when the water level in the reservoir raises the valve into engagement with the valve seat.

Abstract: A backwater valve is described which includes a liquid retaining body having a top, a bottom, a first end, a second end, opposed sides and an inner chamber. A first flow conduit extends through one of the top of the body and the first end adjacent the top of the body and protrudes into the inner chamber. A second flow conduit extends from the inner chamber through the second end adjacent the bottom of the body and protrudes past the second end. An annular seal is positioned on an annular peripheral edge of the first flow conduit which protrudes into the inner chamber. A plate is pivotally mounted to the body. The plate having a wear resistant lubricious first face, a second face, a first end and a second end. The first end underlies the first flow conduit. The first face extends past the first flow conduit thereby serving as a spillway for liquids flowing through the first flow conduit. The plate is pivotally movable between a closed position and an open position.

Abstract: A filling regulator for a liquid storage tank of the type according to which a float is displaced vertically in the float chamber provided in the body of the regulator. The regulator includes a deflector slanted over the inner wall of the body and installed above the gate at a far enough distance above the float chamber to allow the gate to be positioned in the full-open position. The deflector includes slanted, spaced-apart blades which are joined at their lower ends by a protective base.

Abstract: A two-stage float actuated shut-off valve for use in underground fuel storage tanks utilizes a drop tube coaxially mounted within the storage tank fill pipe. Fuel flowing into the tank is passed through the drop tube which projects downwardly into the interior of the tank to a valve housing located at the lower end of the drop tube. Floats slidably mounted in a recessed area in the housing outside of the drop tube within the tank independently operate pivoted valve doors to a closed position within the valve housing, a lower float closing one valve door to block a major portion of incoming fuel flow passage when the level of fuel in the storage tank reaches a predetermined first level and a second upper float causing the secondary valve door to overlap an aperture in the main valve door to almost completely close the flow of fuel to the tank.

Abstract: An electro-rheological controlled shock absorber for use on motor vehicles is disclosed. The shock absorber employs a fluid filled cylinder, a piston member traveling in the cylinder, and an electro-rheological valve controlling the passage of fluid through the cylinder. In one embodiment of the present invention, the electro-rheological valve is placed in a by-pass passage to control the flow of fluid therethrough. In another embodiment of the present invention, the electro-rheological valve is placed in the piston to control the flow of fluid. The present invention is well adapted for use with all forms of shock absorbers.

Abstract: A valve operating on hydraulic pressure for the control of water being deposited onto evaporative pads located on a cool tower. The valve utilizes water flow to fill a basin or tank which is slowly being drained. When the tank is empty, a valve is opened that releases water to the evaporative cooling pads and also to the tank; when the tank is filled, the valve closes permitting the tank to slowly drain and repeat the cycle.

Abstract: A float chamber located in generally parallel, laterally spaced relationship to the main liquid flow passageway contains superimposed floats that move along a substantially linear path of travel. The floats cooperate with other control components to effect closure of a main valve assembly when the liquid level adjacent the mechanism reaches a preselected first elevation, and to close a bleed valve assembly when the liquid level reaches a second, higher elevation. The main valve assembly includes a movable plate valve that is spring biased toward an open position and that is biased toward a closed position by the force of liquid adjacent thereto and upstream therefrom. A latch and associated catch prevent movement of the valve plate to its closed position until such time as the liquid level reaches the first elevation.

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.