Abstract: A fluid overfill detection and control system for controlling the transfer of fluid into a transport vehicle having multiple fluid compartments includes a plurality of overfill sensors that are connected in series with one another and that each produces an output pulse when the fluid level in its associated compartment is below a threshold level. A diagnostic line connected to each of the overfill sensors provides a diagnostic signal indicative of the number of overfill sensors that generate an output pulse, while a module on the vehicle provides an indication of the total number of overfill sensors located in the vehicle. To prevent a hazard due to the possible bypass of a overfill sensor, the controller compares the overfill sensor count signal to the diagnostic signal and inhibits the transfer of fluid into the vehicle if the values do not match.

Abstract: A system and method for validating the availability and operability of a field device in a process plant is provided. A diagnostic apparatus includes a processor coupled to the field device wherein a diagnostic check is executed to remotely determine the availability and operability of the field device.

Abstract: A system for extracting and discharging fecal sludge, including: a pneumatic pressure conveyor, the pneumatic pressure conveyor including an air inlet and an air outlet; a pipe tee; a first two-position three-way valve; a second two-position three-way valve; and a plurality of connecting pipes, the pipes including an air vent pipe. The pneumatic pressure conveyor, the air inlet thereof, the air outlet thereof, the pipe tee, the second two-position three-way valve, and the first two-position three-way valve are connected via the connecting pipes to form a loop. The pipe tee is disposed close to the air inlet of the pneumatic pressure conveyor, and one port of the pipe tee not enclosed in the loop functions as an air inlet end of the pneumatic pressure conveyor.

Abstract: A fluid supply system includes a tank, a shutoff valve, a fluid fill channel, a fluid supply channel, a fill detector, a pressure detector, and a controller. The shutoff valve includes a shared channel to enable fluid to flow from a fill hole to the tank and to flow from the tank to a fluid usage device. The pressure detector is provided in the fluid supply channel. The controller is configured to output a close instruction to the shutoff valve and configured to execute a processing to determine open valve malfunctions in the shutoff valve based on changes in pressure values which are input from the pressure detector. The controller stops the processing to determine open valve malfunctions when the fill detector detects that the fluid supply system is in the supplying state.

Abstract: A fuel cutoff valve comprises a casing having a primary valve chamber and a secondary valve chamber, a primary valve mechanism housed in the primary valve chamber, and a secondary valve mechanism housed in the secondary valve chamber. The casing has a first communication path that connects the inside of the fuel tank and the primary valve chamber, and a second communication path that connects the primary valve chamber and the secondary valve chamber, due to the differential pressure between the tank internal pressure and the primary valve chamber, by the fuel in the fuel tank flowing into the primary valve chamber through the first communication path, a connection conduit is closed by the primary valve mechanism. When the fuel level inside the fuel tank reaches a second fuel level, the second communication path is closed by the rising of the secondary valve mechanism.

Abstract: A lubrication system for a work tool, such as a demolition hammer, that is powered by a drive fluid. The lubrication system including a valve member movable from a first position to a second position in response to receiving an input indicative of a low level of a lubricant, wherein in the second position, the valve member is configured to divert the drive fluid to shutdown or derate the tool.

Abstract: An overfill valve associated with a drop tube segment fluidly connected to a fluid reservoir is described. The overfill valve includes a valve body positioned within the drop tube segment and a non-contact valve actuator positioned exterior to the drop tube segment and operable to actuate the valve body from an open position to a closed position without requiring any physical penetration through the wall of the drop tube segment. The non-contact valve actuator has a first position in which the non-contact valve actuator does not actuate the valve body from the open position to the closed position in a second position, achieved when the liquid reservoir reaches a predetermined level approaching the capacity of the liquid reservoir, the non-contact valve actuator actuating the valve body from the open position to the closed position when the non-contact valve actuator obtains the second position.

Abstract: A device for the reliable measurement and control of the filling level in the quencher sump of a quenching chamber arranged downstream of the gasifying chamber is provided. The device has a differential-pressure transmitter. The measuring location recording the pressure of the gas chamber is flushed with inert gas. The device unproblematically senses the pressures in the quenching chamber and at the bottom of the quencher sump. The difference between which is used as a controlled variable for the filling level.

Abstract: A beverages dispenser, particularly for carbonated beverages, comprises a cooled tank where beverage is stored, an inlet pipe to the tank, an inlet valve on the inlet pipe, a pump downstream the inlet valve for feeding a beverage to the tank in order to maintain a predetermined level wherein, an outlet pipe from the tank to a beverage dispensing nozzle, and an outlet valve on the outlet conduit. An auxiliary pipe is disposed between the inlet pipe downstream the inlet valve and the outlet pipe downstream the outlet valve and a control unit is adapted to close the inlet valve and to run the pump in order to empty the outlet pipe into the tank after the beverage is dispensed in order to prevent dripping.

Abstract: An injection system for injecting one or both of water and alcohol into an internal combustion engine includes a system monitor, a control module, a mixture delivery system, and a water reclamation system. The system monitor can have a parameter level display. The control module can be adapted to receive and store one or more user-supplied parameters. The water reclamation system can comprise a means to recover water from exhaust of an internal combustion engine utilizing capillary condensation.

Abstract: A method for monitoring a level of a sanitation agent in a dishwashing system having a sanitation agent supply vessel includes the step of providing a supply tube having a first portion and a second portion that are unconnected to one another. The first and second portions are linked with a pipe. An optical sensor is situated adjacent the pipe, and a reference reading, a fault check reading, and a fault confirmation reading is sequentially taken with the optical sensor. The method further includes the step of imposing a warning signal by a controller when both: (1) a magnitude of the difference between the reference reading and the fault check reading exceeds a threshold; and (2) a magnitude of the difference between the reference reading and the fault confirmation reading exceeds the threshold.

Abstract: The invention relates to a method for operating a tank for receiving fluids in a sanitary system of a rail vehicle, wherein a) the fill level of the tank is registered; b) in the event that the fill level registered in step a) is equal to or greater than a fill level specified for the tank, ice formation is permitted for a time period specified for the tank; c) in the event that the fill level registered in step a) falls below the specified fill level, the tank is emptied; or d) in the event that the fill level registered in step a) falls below the specified fill level, the fill level is increased with fluid from a fresh water tank, and subsequently, steps b) or c) are carried out.

Abstract: An improved liquid level control device for improving growing conditions and efficient crop growth in a series of plant pots includes a first valve means, a connection means, and a second valve means. The first valve means is operable to control a liquid level in a first pot. The connection means is mounted to a portion of the first valve means. The connection means includes an inlet connectable to a liquid source and an outlet for directing liquid to a remote plant pot. The second valve means is slidably received within the connection means and is operably connected to the first valve means. The second valve means is adapted to move between a first position allowing liquid communication between the inlet and outlet, and a second position substantially closing communication between the inlet and outlet depending on the liquid level within the first plant pot.

Abstract: A method and apparatus for extending the usage life of cooking oil used in a deep fat fryer in which the desired cooking oil usage life is determined. Upon the occurrence of a triggering event, the level of cooking oil in the vat of the deep fat fryer is varied between an upper first level and a lower second level by extraction of used cooking oil from the vat until the cooking oil level reaches the lower second level and subsequent input of fresh cooking oil until the level of cooking oil, used and fresh, in the vat reaches the upper first level.

Abstract: The present disclosure is directed generally to waste water vessels with multiple valved chambers, and associated systems and methods. A method in accordance with a particular embodiment includes drawing waste water into a first chamber under vacuum while the first chamber and a second chamber have at least approximately the same internal pressure. The method further includes allowing the waste water to pass from the first chamber to the second chamber while the first chamber and a second chamber have at least approximately the same internal pressure, releasably sealing the first chamber from fluid communication with the second chamber, and simultaneously adding waste water to the first chamber and removing wastewater from the second chamber while the first chamber is sealed from fluid communication with the second chamber.

Abstract: A control method of a filled water volume in a fluid space requiring a water filling test is disclosed. The method includes disposing a pipe in the fluid space and enclosing the pipe with an enclosure, detecting pressure of a water filled portion in the fluid space or outside of the enclosure, and controlling the volumes of filling fluid and water to a water filling portion in the fluid space inside and outside the enclosure based on the detected pressure such that the pressure in the enclosure becomes higher than the pressure at the water filling part in the fluid space outside the enclosure.

Abstract: A protective device for a wastewater sensor of a wastewater lift station is characterized by a protector that is sealed against wastewater intrusion at an upper end and open at a tapered lower end, with the protector disposed about at least a portion of a wastewater level sensor assembly. The protector is retained vertically within the lift station such that the bottom opening is proximate a bottom of the lift station. The protector may be incorporated into a wastewater level sensor assembly for a wastewater lift station utilizing, for example, a float-type water level sensor, a multiple discrete electrode-type water level sensor, or a transducer-type water level sensor.

Abstract: In a water storage system with water conduits, water pumps, drain valves, discharge valves, for storing a first volume of water, a method of maximizing water availability monitors a second volume of water within the system. Data regarding forecasted precipitation predicted to occur at some point in the future, including a predicted duration, intensity and volume are received and an expected time-dependent volume of water to be added to the system during the forecasted precipitation is estimated. If at least one of: a first sum of the predicted volume and the second volume and a second sum of the expected time-dependent volume and the second volume is greater than the first volume then the water pumps, drain valves, and discharge valves are controlled to discharge water until each of the first and second sums is not greater than the first volume.

Abstract: The present invention provides a liquid crystal suction device, which includes: a first vacuum generation unit, a flexible suction tube, and a load; the load being disposed at one end of flexible suction tube, the other end of flexible suction tube connected to first vacuum unit. The present invention also provides a liquid crystal coating equipment. Through the above manners, the present invention keeps liquid crystal suction end stay below liquid crystal level and prevents suction end of the liquid crystal tube from drawing in air bubble.

Abstract: A beverage container with an electronic display device and methods for its use are described. The beverage container includes an electronic display device disposed in a sidewall of the container and a control module disposed in a hollow base portion. A liquid sensor senses the presence of a liquid in the container and a motion sensor is provided to sense movements of the container caused by, for example, transporting, holding, or drinking from the container. When the control module receives appropriate signals from the liquid and motion sensors an image or video is displayed on the display device. The container is thus useable to display pictures, videos, slide shows, advertisements, or the like in personal or commercial applications. A communications port is also provided to enable coupling of the container with a computing device for management of images and videos displayed on the container.

Abstract: A method for venting of a liquid tank with a valve, a primary compartment and a secondary compartment which are connected together via a bridge. The valve includes a chamber provided with a cover, which extends at least partly into the tank and is connected via an upper venting aperture to a venting circuit. A first device monitors a level of liquid in the primary compartment. A second device monitors a level of liquid in the secondary compartment. The valve configured to be closed when the first device detects that the level of liquid in the primary compartment is equal to or higher than a first predetermined filling level, and the second device detects that the level of liquid in the secondary compartment is equal to or higher than a second predetermined filling level.

Abstract: A lubricant reservoir system. The system includes a reservoir for containing lubricant. The reservoir has a top, a bottom, a peripheral wall, and an inlet for delivering lubricant to the reservoir from a supply. The system also includes a follower in the reservoir slidingly and sealingly engaging the peripheral wall of the reservoir, the follower moving up and down in the reservoir in response to a changing level of lubricant in the reservoir. The lubricant reservoir system has a shut-off valve in fluid communication with the inlet for selectively preventing lubricant flow through the inlet. The valve is operatively connected to the follower for closing the valve and preventing lubricant flow through the inlet when lubricant in the reservoir reaches a predetermined level.

Abstract: A double-walled above-ground storage tank includes a primary tank and a secondary tank, and an interstitial space; an containment chamber formed by a primary chamber wall and a secondary chamber wall, forming a chamber interstitial space therebetween, and an exterior door assembly; and at least one pipe and valve assembly wherein the pipe originates in the tank interior volume and the valve is disposed within the chamber.

Abstract: A quartz glass liquid level sensor includes a support frame, a light masking plate, a quartz glass tube, and a sensor module. The light masking plate is movably mounted on the support frame. The quartz glass tube is movably mounted to the support frame. One end of the quartz glass tube is securely fixed to the light masking plate. The sensor module is mounted on the support frame, for sensing a position of the light masking plate relative to the support frame.

Abstract: A wastewater sewage system is disclosed. The sewage system includes a flow control valve that controls the flow of wastewater through the sewage system such that the sewage pipes in the sewage system are substantially full.

Abstract: A fuel return valve and system includes a flow-level select and shut-off valve and a servo control valve. The flow-level select and shut-off valve includes a first fuel inlet, a second fuel inlet, a return-to-tank fuel outlet, and a valve element movable between a shut-off position, a mid-flow position, and a max-flow position. The servo control valve is coupled to the flow-level select and shut-off valve and is configured to control relative fluid pressures therein to selectively move the valve element to the shut-off position, the mid-flow position, and the max-flow position.

Abstract: A measurement device for regulating the filling level of a liquid-gas mixture via a inlet valve in a container, having at least one vertical liquid standpipe fixed to a outer wall of the container and fluidically connected to the interior of the container via horizontal tube-shaped hydraulic devices. A first lower hydraulic device is disposed near the container base so the standpipe level changes with the container. A second hydraulic device is provided above the desired filling level so that the standpipe level changes when a selectable desired filling level value is exceeded. The device has a display and regulator that is in controlled connection to the liquid inlet valve. The liquid standpipe has a third tube-shaped hydraulic device that protrudes horizontally into the container and is arranged in the container at or below the desired filling level. The first lower hydraulic device is configured as a return.

Abstract: A method for controlling a water level of a drum of a heat recovery steam generation system for a combined cycle power plant is provided. The method includes determining an optimum drum water level during start up operation of the heat recovery steam generation system based on a characteristic chart model. The characteristic chart model is generated based on a plurality of vapor pressures of the drum and a plurality of temperatures of drum metal at the time of the start up operation of the heat recovery steam generation system.

Abstract: The invention relates to a method for supplying at least one analysis apparatus with at least one liquid. In the method, the liquid is kept available in a storage tank, from where it is transported into at least one buffer tank. The liquid is fed to the analysis apparatus from the buffer tank, whose filling level is monitored. Here, the buffer tank is arranged above the analysis apparatus and the storage tank is arranged below the analysis apparatus. The invention also relates to a device for carrying out this method as well as to an analysis apparatus in which this device is employed.

Abstract: A fluid-reservoir management system for monitoring fluid capacities and controlling the transfer of fluid capacities within a fluid network includes a plurality of linked fluid reservoirs for storing the fluid capacities, a central computer unit in a communication network, the fluid reservoirs being linked to the communication network for transmitting data to and from the central computer unit, a communication portal provided in the communication network, a user interface for accessing the communication portal, a comparison unit for comparing fluid capacities and for comparing parameters of the fluid reservoirs and of the fluid network, and a control device for executing orders to transfer fluid capacities between at least two fluid reservoirs. The central computer unit coordinates the orders to transfer fluid capacities between at least two fluid reservoirs as a function of results of comparisons performed by the comparison unit and forwards the orders to the control device for executing.

Abstract: A device for maintaining a water level in a respiratory humidification system, said device comprising: at least one sensor positioned external to a humidification component, the at least one sensor configured for sensing water related information in the humidification component and providing the water related information to a water control module, the water related information comprising data configured for being used to control an operation of the water control module.

Abstract: A nozzle locking assembly is provided for an aircraft with a thrust reverser actuation system (TRAS) having a transcowl and a variable area fan nozzle (VAFN) system having a nozzle.

Abstract: A system includes a forwarding skid configured to forward a liquid supply from a liquid storage vessel toward a downstream component. The forwarding skid includes a pumping system configured to receive a gravity feed of the liquid supply from the liquid storage vessel, and the pumping system is configured to pump the liquid fuel supply toward the downstream component. The forwarding skid also includes a monitoring system configured to obtain at least one sensed parameter of the gravity feed of the liquid supply received at the forwarding skid upstream from the pumping system. The at least one sensed parameter is indicative of a supply level remaining at the liquid storage vessel.

Abstract: A water saving tank includes a tank box and a supplementary device. The tank box includes an inlet, a supplementary port and an outlet. The inlet collects the water from a shower head, the supplementary port connects to an exterior water source, and the outlet connects to a fill device in a cistern of a water closet. A position level of the tank box is higher than that of the cistern of the water closet. The supplementary device joints to the supplementary port; as the water in the tank box drops to a first predetermined water level, the water of the exterior water source flows into the tank box; as the water in the tank box is filled up to a second predetermined water level, the water of the exterior water source is blocked to flow into the tank box. The water is saved effective thereby and further is able to be reserved for spared.

Abstract: An auto flow steam trap has a hollow body, a partition panel mounted in the body, at least one float seat mounted on the partition panel and at least one float assembly mounted in the at least one float seat. Condensate flows through at least one condensate inlet formed on the body, the at least one float seat and at least one float assembly, and then is drained out of the steam trap from a transverse outlet formed on the body. No flash steam occurs when the condensate is drained out of the steam trap. With a non-return valve assembly of the float seat, the condensate and steam that have flowed out of the steam trap do not flow back into the steam trap so a float of the float assembly is not damaged.

Abstract: Fluidizing transport apparatus comprises a hopper, a pressure vessel and a valve element which controls a port between the hopper and the vessel. The valve element is retained closed against the port under pressure within the vessel. A fluidizing nozzle receives transport fluid, such as water from a fluid line. Water supplied through the fluid line thus fluidizes solids in the vessel and raises the pressure to maintain the valve element in the closed position. The fluidized solids material is then supplied to a transport pipeline from the vessel. Solids material loaded into the hopper depress the valve element when pressure within the vessel is relieved, so allowing a fresh charge of the solids material to enter the vessel for a subsequent cycle. The position of the valve element within the vessel is influenced by a float which responds to the water level within the hopper.

Abstract: Example methods and apparatus for level loop control are disclosed. A disclosed example method includes determining via a sensor a first pressure of a liquid in a tank, determining via a turbine flow meter a second pressure of the liquid in the tank, determining if the first pressure is within a specified range of deviation from the second pressure to determine an operational state of the turbine flow meter, and transmitting a diagnostic message indicating that the turbine flow meter needs to be serviced based on the state of the turbine flow meter.

Abstract: A toilet water supply system comprising: a used water reservoir, in addition to a tank of said toilet, for storing used water to be supplied to said toilet tank from a domestic water source; an adequate-water sensor, for sensing whether said reservoir is full; and a water-directing apparatus, for directing water from said used-water source towards said used water reservoir upon sensing that said reservoir is not full, and towards a domestic drain upon sensing that said water reservoir is full, wherein said directing is carried out using a pump and the operation thereof is regulated, wherein said water-directing apparatus, said sensor and said pump being separated from said water reservoir and the capacity of said apparatus being less than about 3 liters, thereby allowing placing said water directing apparatus in an easy accessible location, resulting with convenient maintenance.

Abstract: In at least some implementations, a fluid level sensor for sensing the level of a fluid within a tank includes a fluid tube through which fluid flows under pressure, a pressure pulse inducer, a fluid level responsive member and a pressure sensor. The pressure pulse inducer is disposed within the fluid tube so that at least some of the fluid flowing through the fluid tube engages the pressure pulse inducer. The fluid level responsive member is operably associated with the pressure pulse inducer to provide a force on the pressure pulse inducer that varies as a function of the fluid level in the tank. And the pressure sensor at senses the pressure of the fluid flowing through the tube, where the pressure pulse inducer induces changes in the pressure of the fluid as a function of the fluid level and the changes in pressure are sensed by the pressure sensor.

Abstract: A method and a system for regulating fluid levels in an evaporator comprising fluid communicating pans, the system comprising a tube in fluid communication with at least a first pan of the evaporator and exterior to the first pan, a level sensor immersed in the fluid in the tube; an air pump unit; and a pressure monitoring unit; the air pump unit providing a constant air airflow to the tube; the level sensor detecting variations of the fluid level in the tube, and the pressure monitoring unit controlling input of fluid into the first pan in response to the variations detected by the level sensor.

Abstract: A system and method for harvested water irrigation is provided. The irrigation system generally collects harvested water from a variety of sources and disperses it from a tank to a landscape for irrigation. The irrigation may be managed using a system controller. The system controller interacts with a variety of devices, including a level controller, a pump or valve, and at least one zone valve. The system may be configured to end irrigation cycles in response to certain events and to supplement harvested water irrigation with potable water as needed or selected.

Abstract: A device to shut-off a water supply to a toilet diverts water from a toilet fill valve to a shut-off valve that has a housing that includes a valve mechanism, a trip mechanism, and a trip circuit. The trip mechanism includes a rotational spring that urges closing of the valve mechanism. A trip latch is adapted to prevent closing of the valve mechanism except when withdrawn from the valve mechanism by a solenoid that is electrically connected to the trip circuit. The trip circuit includes at least one trip sensor input and a power source, such that when the trip circuit detects a fault condition on any of the trip sensors, the trip circuit connects power to the solenoid to withdraw the solenoid to close the valve mechanism. A rest knob may then be rotated to reset the valve mechanism into a valve-open position.

Abstract: The present invention discloses a fluid supply system, which comprises at least two flow meters and a control device. The at least two flow meters are disposed on at least one water pipeline and at least one lotion pipeline for generating a plurality of flow values. The control device is electrically connected with the at least to flow meters for receiving the flow values to confirm amounts of water and lotion supplied to at least one lotion sink. The present invention further discloses a fluid supply method. The control device judges whether fluid level sensors disposed on the lotion sink fail by the amounts of water and lotion, to prevent the lotion in the lotion sink from overflowing when the sensor fails, thereby reducing cost.

Abstract: A water purifier includes: a purified water tank storing purified water; a hot water tank connected to the purified water tank to receive the purified water from the purified water tank and including a heater heating the received purified water; a manipulation unit through which an extraction amount of hot water is inputted; and a control unit performing a control to supply the purified water of the purified water tank to the hot water tank by the extraction amount of hot water, when the extraction amount of hot water is inputted to the manipulation unit, and operating the heater to heat the water of the hot water tank. According to the present invention, the power consumption of the water purifier decreases in comparison with a conventional water purifier. Furthermore, it is possible to provide an accurate amount of hot water to a user without using a water level sensor.

Abstract: A lubrication system for a work tool, such as a demolition hammer, that is powered by a drive fluid. The lubrication system including a valve member movable from a first position to a second position in response to receiving an input indicative of a low level of a lubricant, wherein in the second position, the valve member is configured to divert the drive fluid to shutdown or derate the tool.

Abstract: Disclosed herein is an apparatus for supplying a source for constantly maintaining a film source water level in a source reservoir. The apparatus for supplying a source according to the present invention includes a source reservoir into which a liquid-phase film source is injected; a carrier film that is horizontally delivered from one side of the source reservoir; a casting roller that is rotated along the delivery direction of the carrier film and applies the liquid-phase film source injected into the source reservoir to the carrier film; a water level control plate that is vertically driven in the source reservoir to control the liquid-phase film source level; and a plate driving unit that moves the water level control plate up and down.

Abstract: A water dispensing device comprises a container mounted to rotate about an axis. The container is adapted to receive and accumulate quantities of water. The container is pivotal mounted to rotate about the axis such that when the container accumulates more than a predetermined quantity of water, the container is adapted to rotate at least one rotation about the axis to dispense a quantity of water.

Abstract: A level sensor for providing an indication of liquid level in a container. The level sensor including an ultrasonic transducer for emitting an ultrasonic signal to the surface of the liquid and for detecting a return signal, reflected from the surface. A controller instructs the transducer to emit ultrasonic signals and receives an indication that a return signal has been detected. The controller including a timer for measuring the time period between emission of the ultrasonic signal and receipt of a return signal, the determined time period providing an indication of the liquid level. A radio transmitter receives an indication of the liquid level and transmits a radio liquid level signal to a remote output unit.

Abstract: A fuel delivery system is provided including one or more pump assemblies and one or more controllers configured to control the one or more pump assemblies. The fuel delivery system may conserve energy by selectively activating the one or more pump assemblies and the one or more controllers.

Abstract: An opening/closing device 1 according to the present invention includes a gate 10 that receives a flow of a sewage W in an upright state, and can fall toward a downstream side of the flow and a first spring 52a that generates a force for bringing the gate 10 into an upright state, wherein the first spring 52 generates a force insufficient for bringing the gate 10 into the upright state if the gate 10 is in a fallen state, and generates a force sufficient for bringing the gate into the upright state if the gate 10 is tilted by an angle equal to or less than a predetermined angle.