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: 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 welding cable connector system having a male connector and a female connector. The male connector includes a first conductive body for conveying welding power. The male connector also includes a first sealed passageway disposed coaxially of the first conductive body for conveying shielding gas, and a first Schrader valve configured to stop flow of shielding gas when the male connector is not engaged. The female connector includes a second conductive body for conveying welding power. The female connector also includes a second sealed passageway disposed coaxially of the conductive body for conveying shielding gas, and a second Schrader valve configured to stop flow of shielding gas when the female connector is not engaged. The male and female connectors are mutually engageable to conduct welding power and shielding gas therethrough. The first and second Schrader valves seal the flow of shielding gas when the connectors are not mutually engaged.

Abstract: A fire extinguishing agent delivery apparatus, system, and method of use having an outer tube with an inlet attached to a pressurized water source and an outlet attached to a firefighting hose. The apparatus includes an inner venturi tube mounted within the outer tube, having a funnel-shaped inlet and outlet, a reduced diameter intermediate portion, and an extinguishing agent inlet port. The apparatus includes a device for injecting extinguishing agent into the inlet port and the venturi tube has a smaller diameter than the outer tube, so a portion of water travels through the venturi tube and mixes with extinguishing agent and a greater portion of water travels unobstructed through the outer tube and mixes with the mixture of water and fire extinguishing agent discharged from the venturi tube, prior to discharge from the outer tube.

Abstract: The present invention provides a transportable system is provided for locally providing hundreds of liters of water to a household, the system including a trailer carrier, adapted to be connected to a private car or vehicle, a water container in fluid connection with a filling apparatus and with a delivery apparatus, the filling apparatus comprising a filling conduit and a filing pump, a water filter apparatus, the delivery apparatus including a delivery conduit and a delivery pump, a portable electricity generator and an inverter, wherein the trailer carrier is adapted to carry the water container and water therein, the filling apparatus, the water filter apparatus, the delivery apparatus, the portable electricity generator and the inverter.

Abstract: An oil separator introduces purge air from an air dryer into a housing, separates oil from the purge air, and recovers collected liquid containing the oil. The oil separator is equipped with a detecting member. The detecting member detects the amount of the collected liquid in the housing and outputs the result of the detection to a reporting member.

Abstract: A hydraulic system for a machine is disclosed. The hydraulic system includes a hydraulic tank configured to store a liquid therein. The hydraulic system also includes a first conduit, a venturi, a fluid conduit and a second conduit. The first conduit is in fluid communication with the hydraulic tank and configured to receive the liquid from the hydraulic tank. The venturi is in fluid communication with the first conduit and configured to reduce a pressure of the liquid flowing therethrough. The fluid conduit is in fluid communication with the venturi and configured to supply a gaseous fluid into the venturi. The second conduit is in fluid communication with the venturi and configured to supply a mixture of the liquid and the gaseous fluid into the hydraulic tank in order to increase a pressure of the liquid in the hydraulic tank.

Abstract: An aircraft fuel tank system includes at least one fuel tank having a plurality of interconnected bays and a vent arranged so as to allow an inward venting of atmospheric air. The system is arranged so as to direct the inwardly vented air along a vent duct. The vent duct is arranged so as to convey the inwardly vented air to substantially each one of the interconnected bays.

Abstract: The invention aims at pressurising a volume (2) that needs to have a relative air pressure, in comparison with an ambient pressure, where the ambient air pressure can change rapidly and with large amplitude and where the access to pressurised air is limited. This is solved by a half open system comprising two parallel regulators (9) and (17) and two ejectors (15) and (19) working according to a split range control principle. When the relative air pressure difference is above a desired value of the second regulator (17), only the first regulator and the first ejector work. When the relative air pressure difference is below the desired value of the second regulator (17), both regulators (9) and (17) and ejectors (15) and (19) work. In this way the pressure inside the volume (2) can adapt rapidly to the changes in the ambient pressure, without leaking too much air during a static condition.

Abstract: Apparatus and processes are presented to contact a dry, preferably high purity inert gas with a chemical composition in a pressure vessel, or a wetting composition, to form a wet inert gas, which is then used to pressurize the chemical composition out of the pressure vessel. No additional space is needed for an external humidifier. Since a very small amount of vapor is needed to form a wet inert gas, the composition of chemical composition will not be significantly affected.

Abstract: A water treatment process using a membrane separation apparatus to separate clean product water from a contaminated water source, the membrane is provided within a housing having inlet ports for collecting concentrated and product water, and the apparatus also includes a concentration chamber and a venturi for injecting gas in the concentration chamber and producing a return stream.

Abstract: Device 7 for introducing air into a hydraulic system comprising a hydro-pneumatic reservoir 3 mounted on a pipe 1. The air introduction device 7 is mounted in such fashion as to introduce air into an area of the system containing water in which the pressure P.sub.s is either below or slightly above atmospheric pressure. The device is active when a lack of air is to be made good in the hydro-pneumatic reservoir 3.

Abstract: A cyclically-operated hydraulic device includes: an air-liquid chamber which, during a first part of each cycle is partially filled with a liquid while air in the chamber is compressed, and during a second part of each cycle discharges under pressure a portion of said liquid from the chamber; and an air-replenishing device which inlets a small quantity of air into the air-liquid chamber during each cycle to replenish air contained in the liquid discharged under pressure.

Abstract: A system for the delivery and storage of bulk quantities of high quality water. The system includes a tank truck having air filters to preclude the entry of noxious materials into the bulk water hauling tanks. A delivery valve and a receiving valve are provided for the substantially air-free transfer of water from the bulk water hauling tank to a storage tank from which water can be supplied to the user. Water storage systems are provided including check valves to protect the quality of the water and the amount of residual water remaining in the storage tank. A pressurized water storage system is provided using a harmless gas and a floating check valve to contain the gas as water is drained from the storage system.

Abstract: A device is disclosed for supplying a glass raw material gas in the form of the mixed gas consisting of the glass raw material gas and the carrier gas to a vapor deposition device for producing a preform of an optical fiber, the supply device including a secondary raw material container having a pressurizable interior and provided adjacent to a main raw material container. The bottoms, or areas near the bottoms, of the two containers are interconnected via a pipe including at a mid portion thereof a switching valve and a device for adjusting the flow rate of the raw material liquid between the two containers. Liquid level detectors are provided in one or both containers to maintain the constant volume of the liquid raw material so as to provide a constant state inside the main raw material container. The operation of this device can easily be entirely automated.

Abstract: A check valve (32) comprises a housing (33) having an inlet (34) and an outlet (40) defined therein and first (43) and second (45) ramp surfaces are defined in the housing (33) at varying acute angles (a,b) relative to a longitudinal axis (X) of the valve (32). A valve element (41) is mounted in the housing (33) for sequential movement along the ramp surfaces (43,45) to close the outlet (40) in response to fluid flow through the valve (32). The check valve (32) finds particular application for use as a vent valve in a cooling system (11) for an internal combustion engine to avoid the overcooling problem which is prevalent with conventional cooling systems wherein a continuously open port is employed in association with a thermostat for air-purging purposes.

Abstract: A dual valve assembly for intravenous infusions from multiple parenteral fluid sources, the assembly controlling both forward and reverse flow through a flow line includes normally seated first and second valves mounted for movement toward and away from respective valve seats to control flow in a first direction, one of said valves being opened in response to opening movement of the other valve and said one valve including a second seat and movable into closing relationship on its second seat in response to reverse flow to thus prevent reverse flow through the assembly.

Abstract: Apparatus for supplying liquid at a constant but regulable pressure comprising a storage vessel having an inlet and an outlet, the outlet being adapted for connection to a utilization device which is to be fed with liquid at constant pressure. An inlet conduit is connected to the inlet of the vessel and a pump is connected in the inlet conduit for pumping liquid from a liquid supply to the inlet of the vessel. A valve is inserted in the inlet conduit upstream of the pump for preventing reverse flow of liquid to the liquid supply when the pressure in the utilization device exceeds the static pressure due to the liquid height in the vessel. The valve is coupled to the pump to be opened and closed in accordance with starting and stopping thereof. The vessel includes an air inlet duct including a regulating device for adjusting the air pressure in the air chamber of the vessel from zero to a predetermined maximum.

Abstract: An air charging device is connected to a supply tank, a pump and a use facility, such as a faucet. When the faucet is opened, water flow from the tank through the device to the faucet charges a chamber in the device with air; while when the pump is actuated, water flow from the pump through the device to the tank causes the air in the chamber to be compressed and escape into the tank. The flow of water in either of two directions causes a freely movable valve member to engage and shift a plunger. Movement of the plunger in one direction causes intake of air into the chamber, and movement thereof in the other direction causes compression and discharge of air into the supply tank.

Abstract: In an air pressurized hydraulic system, air is replenished in a storage tank for the liquid by an air control responsive to pressure differences in the system to supply air to the storage vessel if needed. During replenishment of liquid in the storage vessel, air may be added repetitively by periodically switching a valve to reverse the pressure across an air control chamber device for admission of air from atmosphere and discharge into the pressure vessel.