Abstract: A method of controlling an ebb and flow watering system utilizing existing hardware commonly used in ebb and flow systems including float switches, water pumps, electromechanical timers, reservoir, control bucket, flood lines, indicator LEDs and plant containers such that the filling and draining of the control bucket is improved by accommodating for hydraulic delays, flood line restrictions, and pump limitations, while further providing constant monitoring for leaks or float switch failure, and shutting off the pumps if the same are determined.

Abstract: A liquid metering device that dispenses liquid into an adjacent reservoir at a precise ratio relative to the total volume of the adjacent reservoir as the reservoir is filled with liquid. The hydrostatic dispensing system includes an additive reservoir, a calibrated dispensing vessel, a hydrostatic pressure chamber, a pressure limiter, and a three-way valve that passively arms and dis-arms the system.

Abstract: Systems and methods for determining when a fluid supply container of a blood processing apparatus becomes empty. The system uses a scale to monitor and detect when a fluid supply container is empty based on the rate of change of the container weight and whether the container weight is below a pre-established threshold, and a controller receives a signal from the scale and controls the operation of a pump to stop pumping when the fluid supply container is empty.

Abstract: In one exemplary embodiment of the present invention, a fuel stabilizer system is provided. The fuel stabilizer system includes a fuel additive storage unit that stores fuel stability fluid. A fuel stability fluid supply system supplies fuel stability fluid from the fuel additive storage unit to a fuel storage unit. A control module estimates an age of fuel in the fuel storage unit and selectively controls the fuel stability fluid supply system to supply fuel stability fluid to the fuel storage unit based on the age of the fuel.

Abstract: A liquid metering device that dispenses liquid into an adjacent reservoir at a precise ratio relative to the total volume of the adjacent reservoir as the reservoir is filled with liquid. The hydrostatic dispensing system includes an additive reservoir, a calibrated dispensing vessel, a hydrostatic pressure chamber, and a three-way valve that passively arms and dis-arms the system. The precise dispensing of liquid by a calibrated dispensing vessel into the adjacent reservoir is accomplished entirely through the management and arrangement of hydrostatic pressure creating a liquid piston generated by the addition of liquid to the adjacent reservoir and its subsequent application to the liquid in the calibrated vertical column that displaces the calibrated volume of liquid into the reservoir at the same rate that liquid is added to the reservoir.

Abstract: A self-powered pump for heated liquid is provided. The pump includes an airtight container for containing the heated liquid. A heated liquid inlet pipe extends upwardly into the container such that its end is within the container. A heated liquid outlet is lower than the end of the inlet pipe. A breathing pipe extends upwardly into the container such that its end is within the container and is higher than both of the outlet and the end of the inlet pipe but lower than an interior side of the container top. An opposite end of the breathing pipe is outside the container, lower than the container base, and is received by an open container such that the opposite end can become submerged in heated liquid accumulated within the open container during pump operation. A fluid or liquid heating system incorporating the self-powered pump may operate without external power for the pump.

Abstract: A water controlling kit is connected to the fluid system, of a fire truck for example, used for pumping water to one or more fire hoses. The kit has a water level gauge, a signaling element and a control valve and is adapted to maintain the pressure at the inlet of the pump of the fire truck within a preselected range of about 1.5 to about 3 psi. during discharge from the pump and pressure fluctuations of the pressurized water supply supplying water to the fire truck reservoir.

Abstract: In one exemplary embodiment of the present invention, a fuel stabilizer system is provided. The fuel stabilizer system includes a fuel additive storage unit that stores fuel stability fluid. A fuel stability fluid supply system supplies fuel stability fluid from the fuel additive storage unit to a fuel storage unit. A control module estimates an age of fuel in the fuel storage unit and selectively controls the fuel stability fluid supply system to supply fuel stability fluid to the fuel storage unit based on the age of the fuel.

Abstract: An improved bulk fluid distribution for supplying process fluids to semiconductor process tools. The improved system having an alternating pressure vessel engine substantially eliminates pressure fluctuations in the bulk fluid supply line due to head losses from the changing weight of the fluid in the dispensing vessels. The system also enables flexible control of the flow conditions of the fluid in the fluid supply line.

Abstract: A fuel tank assembly is fillable by a fuel pump. The fuel pump is configured such that the existence of a predetermined condition causes the pump to stop delivering fuel. The fuel tank assembly includes a tank defining a chamber, a fill tube, and a fuel pump shut-off system. The fill tube defines an opening configured to receive a nozzle of the pump, and a passageway that provides fluid communication between the opening and the chamber to transfer liquid fuel from the nozzle to the chamber. The fuel pump shut-off system is configured to selectively generate the predetermined condition, and is configured such that whether the predetermined condition exists depends on the total volume of liquid fuel in the chamber and the chemical composition of the liquid fuel in the chamber.

Abstract: A liquid management system comprising a first chamber that has a first boundary wall, and a second chamber that has a second boundary wall. The second chamber has a base surrounded by the second boundary wall and the second boundary wall is within the first boundary wall. The second boundary wall height is lower than the first boundary wall height. The liquid management system also comprises a liquid level control module for controlling i) a first level of the liquid within the first chamber, and ii) a second level of the liquid within the second chamber.

Abstract: A fuel management system mounted on a vehicle is operative to feed individually or a mixture of grades of relatively low, intermediate, and high autoignition temperature fuels to an associated internal combustion engine. The system includes an on board separation unit (OBS unit) for receiving and separating intermediate autoignition temperature (IAT) fuel into low and high autoignition temperature fuels, LAT and HAT, respectively. The production rate of the LAT and HAT fuels by the OBS unit is controlled to substantially match the consumption requirements of the engine at any given time for the LAT and HAT fuels.

Abstract: A chemical solution dispensing apparatus uses a dissolving tank to hold a solid chemical cake. The dissolving tank delivers the chemical solution into a holding tank by gravitational flow and then to a receiving system. A liquid level sensor in the holding tank senses the liquid level of the solution and calls for water delivery through a conduit into the dissolving tank. When the level reaches a low point a circuit opens a inlet flow valve to deliver water into the dissolving tank. When the level reaches a high point, the circuit closes a safety shutoff valve in the conduit line. A pressure regulator and control relay enable the conduit line to be properly pressurized by an inlet source of water through a shutoff valve that is normally open. When the level in the holding tank rises above the high point, an alarm signal is released to initiate an audible alarm.

Abstract: During the deposition of a catalytic component on a carrier, the position of the liquid level of a slurry containing the catalytic component is controlled with high accuracy and the adhesion of the slurry to the lateral face of the carrier is prevented. In the deposition of the liquid substance on the carrier by the introduction of the liquid substance into the carrier from the bottom face thereof, the liquid level near the top face of the carrier is detected by an image-processing sensor.

Abstract: During the deposition of a catalytic component on a carrier, the position of the liquid level of a slurry containing the catalytic component is controlled with high accuracy and the adhesion of the slurry to the lateral face of the carrier is prevented. In the deposition of the liquid substance on the carrier by the introduction of the liquid substance into the carrier from the bottom face thereof, a water-detecting sensor detects the liquid level near the top face of the carrier.

Abstract: An apparatus stably supplying chemical to a treatment apparatus to resolve problems in semiconductor manufacturing process. The apparatus for supplying chemical according to the present invention handles chemical produced by one of methods of diluting a solution and mixing a plurality of solutions to a treatment apparatus and comprises: a plurality of means for storing the chemical; a main pipe for connecting respective chemical storing means and the treatment apparatus; means for supplying the chemical from respective chemical storing means to the treatment apparatus through the main pipe; a first circulation pipe for returning the chemical discharged from respective chemical storing means to the chemical storing means from which the chemical is discharged; and a second circulation pipe for returning the chemical which is transported immediately before the treatment apparatus by the chemical supplying means through the main pipe to the chemical storing means from which the chemical is discharged.