Abstract: A potable water storage system includes a water container having a top and a bottom, an inlet flow line passing through the container and having one end terminating near the bottom and an opposite end being connectable to a main supply of water, an outlet flow line passing through the container and having one end terminating near the top and an opposite end connectable to an exchanger hose line, and a tap disposed in the container near the bottom for releasing water from the container.

Abstract: An emergency water supply barrel that would be connected to one of the water faucets of a house. The water supply barrel has an inlet port and an outlet port formed adjacent the top end of the barrel. A tubular pipe within the barrel has its top end connected to the inlet port and its bottom end located adjacent the bottom wall of the barrel. A hose would normally be connected to the outlet port of the barrel and water delivered through this hose would come from the top of the barrel while new water entering the barrel would be delivered to its bottom end to prevent stagnant water from being stored in the barrel.

Abstract: A method and apparatus for evacuating and transferring liquid waste comprising a pump assembly that is connected to a holding tank and to a liquid container; the pump assembly being mounted on a wall and elevated above the holding tank; the pump assembly including a flexible hose detachably mounted on one end to said pump assembly and which is adapted to be connected at a second end to an aperture in the container, the aperture in the container being connected to a suction mechanism extending to the bottom of the container to permit the pump assembly to drain substantially all of the liquid waste from the liquid container and into the holding tank.

Abstract: An improved receiver dryer header portion for a refrigeration circuit is disclosed. The receiver dryer comprises a cylindrical body having an upper opening and a header portion disposed on the upper opening. The header portion includes a cover plate which is formed as step-like structure having a lower flat surface and an upper flat surface. A fluid inlet port is rotatably disposed on the lower flat surface and a fluid outlet port is rotatably disposed on the upper flat surface. This enables the fluid outlet port to rotate 360.degree. and the fluid input port to rotate more than 180.degree. thereby permitting the piping arrangement of the refrigeration circuit to be easily connected and properly sealed.

Abstract: An enclosed storage tank for the simultaneous addition and removal, and storage, or two liquid layers of different density comprising a tank shell having a bottom, a side wall extending upwardly from the bottom, a roof supported at least in part by the side wall and at least one vertical tubular column extending upwardly from the shell bottom to at least close to the roof; a substantially horizontal first distributor plate above which the column extends and with the plate spaced above but adjacent to the shell bottom; first openings in the column between the first distributor plate and the shell bottom; a high density liquid conduit extending from outside the shell to the column interior whereby high density liquid can be fed to the column interior and then flow out the first openings into the lower portion of the tank beneath the first distributor plate and the high density liquid can be withdrawn from the tank through the first openings and then through the high density liquid conduit; a substantially horiz

Abstract: An emergency fresh water reservoir is provided for a building for use in emergencies, such as earthquakes, floods, hurricanes and other natural disasters in which municipal water supplies are cut off or rendered impure or unpotable. The emergency water reservoir of the invention also can be used to provide a supply of water in times of man made disasters, such as war or acts of terrorism or vandalism which can render municipal water supplies suspect or unusable. The emergency water reservoir is connected between a municipal water supply line and a hot water heater for a building. Water passes through the emergency water reservoir before reaching the hot water heater. Circulation of fresh water is assured and stagnancy of water is prevented during normal operation of a municipal water supply due to flow through the emergency water reservoir to replenish water in the hot water heater, as hot water is utilized in the building. In times of emergency water can be drawn directly from the emergency water supply.

Abstract: A canister with an electric fuel pump therein is connected to a cover for an access port through which the canister is installed on a fuel tank of an automobile by three hollow struts. Each strut has a first end press fitted into a socket on the cover and is telescopically received in a bore in the canister. Coil springs around each strut urge relative separation between the strut and the cover and a flare at a second end of each strut defines a stop to limit relative separation. A passage in the cover from a return fuel connection on an exposed side of the cover to one of the sockets conducts low pressure return fuel to the one of the hollow struts press fitted therein. The return fuel flows back to the canister through the one hollow strut.

Abstract: Automatic hot water recovery apparatus is provided for conserving the energy in a pressurized plumbing system and water heater apparatus by recovering hot water from hot water lines extending to plumbing fixtures remotely disposed from the water heater. A flow regulator is provided for automatically adjusting the flow of water from the cold water line into the hot water line as a function of operating pressure within the plumbing system.

Abstract: A method and apparatus for reducing the intensity of the sound that accompanies a rapid decompression in a pressurized hydraulic system such as that of an injection molding machine. The apparatus includes a reduced area valve that interconnects the high pressure system with a low pressure system, with the valve connected with a tubular muffler so that high pressure fluid is initially released through the valve and into the muffler. The muffler includes a plurality of spaced apertures that face a rigid structural surface so that the high pressure fluid passing through the muffler issues from the several apertures and impinges on the rigid structure to dissipate the pressure shock accompanying decompression, and thereby modulate the intensity of the sound of decompression.

Abstract: An apparatus for use in conjunction with a pressure vessel, having a tubular conduit extending into the interior of the pressure vessel. The outer end of the conduit is rigidly fixed to one end of the pressure vessel in a pressure-tight connection. The inner end of the conduit is attached to a saddle at the other end of the pressure vessel, where the saddle is adapted to slidably receive the conduit such that upon expansion of the pressure vessel due to pressurization, the conduit will move independently relative to the saddle.

Abstract: In a fuel supply device for vehicles, a sub-tank is arranged within a fuel tank. At least one intake port is provided in a bottom wall of the sub-tank. A check valve is arranged at the intake port. A fuel pump is arranged within the sub-tank to supply fuel from the sub-tank to an engine. A fuel return pipe is provided through which a part of the fuel supplied through the fuel supply pipe is returned into the sub-tank. A jet pump is connected to the fuel return pipe so as to deliver the fuel within the fuel tank into the sub-tank through at least one suction port of the jet pump by using fluid energy of the fuel returned into the sub-tank. A pipe is connected to a fuel discharge port of the jet pump, and extends to an upper location within the sub-tank. The jet pump is constituted by a groove forming a flat fluid control device arranged between the fuel pump and the bottom wall of the sub-tank. The groove is formed therein with the fuel suction port and the fuel discharge port of the jet pump.

Abstract: Two liquid comonomers are fed into a catalytic reactor through two separate concentric flow courses having pass through in a Tee-fitting connected to the reactor by a nipple. The two flow courses have spaced apart termination locations within the reactor and there is thereby avoided any possibility of commingling or cross-contamination of the two liquids at any time before they outflow within the reactor from their respective flow courses.

Abstract: The invention relates to a vessel for receiving suspensions containing sos such as radioactive liquids. The vessel includes a bottom wall inclined towards an outlet opening formed therein and a spraying arrangement in the vicinity of the inner walls. In order to reliably discharge solid deposits on the bottom of the vessel while using a minimum of flushing liquid, the bottom of the vessel is provided with a channel extending in the direction toward the outlet opening. A flushing tube pointing into the channel is provided at the highest elevation thereof. The solid/liquid mixture is flushed out of the vessel with great effectiveness by means of a directed delivery of the flushing liquid into the channel.

Abstract: There is disclosed a compressed air delivery system for delivering clean, dry, compressed air from a source of compressed air to a compressed air appliance. The compressed air delivery system includes a vertical, cylindrical tank with an inlet located in the lower 1/3 of the tank and an outlet located near the top of the tank so that the air in the tank becomes stratified with the light, clean air at the top. The inlet to the tank includes in series a connector connected to a source of compressed air, a stepdown regulator, a check valve, an inlet port, and an inlet tube filled with packing material. The outlet of the tank includes in series a drop tube inside the tank, an outlet port, a shut off valve, a particulate filter, a coalescing filter, a stepdown regulator, and an output coupler.

Abstract: Automatic hot water recovery apparatus is provided for conserving the energy in a pressurized plumbing system and water heater apparatus by recovering hot water from hot water lines extending to plumbing fixtures remotely disposed from the water heater. A piston is provided within the water heater to enable the displacement of water therein and to act as an indicator of system operation.

Abstract: A fluid collection container formed in its top wall with a fluid inlet port connectable to a source of the fluid to be collected, and a suction port connectable to a suction source. A closure member is normally disposed in an open position spaced below the suction port but is movable to a closed position against the suction port when the container is full, to prevent passage of fluid from the container to the suction source. The closure member is supported on a stem carried by a release button passing through an opening in the top wall of the container adjacent to but laterally of the suction port. The stem passes through an opening in the closure member and is formed with an enlargement at its lower end normally supporting the closure member in its open position spaced below the suction port.

Abstract: Aquarium with a multiple conduit fixture through one wall, the fixture including an air inlet connected to a plurality of air outlets and a water conduit, each of the air outlets and the water conduit having a throttle valve means at the outside end of the fixture to regulate the flow of air and water respectively, and a perforated support sheet to cover the inside bottom of the aquarium and any conduits for air or water, and to support thereon a gravel bed and any decorative items on the bed, the aquarium featuring several air bubbling locations.

Abstract: An emergency potable water supply system including a generally cylindrical water tank seated on a base member, with the tank having opposite dome-shaped portions. An inlet and discharge fitting is received in an opening in the uppermost part of the upper dome shaped portion, and a drain fitting is received in the lowermost part of the inverted dome-shaped bottom portion. All external connection fittings are conventional garden hose fittings, with the inlet fitting adapted for coupling, via a hose, to a standard exterior residential faucet. A check valve is provided at the inlet fitting, to serve as an anti-siphon valve in the event of a pressure drop at the inlet, and to serve as a vacuum release for discharge of the contents of the tank when needed. A garden hose is coupled to the outlet fitting for continual replenishment of the supply of water during use of the garden hose for normal tasks such as watering plants and shrubs.

Abstract: An overflow trap on a reservoir for liquid anesthetics with at least one inlet conduit for filling and an overflow conduit for overflow which both open at its side wall. The entering of anesthetic liquid from a feed tank through the inlet and the overflow of anesthetic due to shifts or rocking of the liquid level is prevented. For this purpose, the inlet conduit and the overflow conduit are slanted toward the bottom of the reservoir and they have openings close to a wall of the reservoir which is opposite to the inlet and the overflow openings of the conduits.

Abstract: A flow measuring system for flowing liquids utilizing a pitot rod, snubbing vessels and a manometer to determine mean flow velocities and profiles. The snubbing vessels effectively prevent any back flow of indicating fluid into the main pipeline conduit.

Abstract: A corrugated plastic side wall (A) extends from a bottom area (14) to an apex area (12). A riser (B) extends from the apex area above the ground level. A ring of steel channel (10) is fastened around the apex area to prevent the apex area from becoming distorted when the soil in which the tank is buried becomes water-laden. A tank bottom wall (122) is domed inward to inhibit exterior hydraulic pressure from flexing the bottom inward and from urging the corrugated side walls adjacent the bottom to compress to a smaller diameter in an accordion-like fashion. Downward projecting can (124) and boxes (126) extend from the domed bottom surface to a flat plane to prevent the dome from flexing outward under the weight of sewage and other fluids in the interior of the tank. At least one annular projection (52) extends around an outlet opening (44) to enable a tank wall portion (54) adjacent the outlet opening and outlet tubing (48) to move relative to the remainder of the tank.

Abstract: A combination fuel delivery, pick-up and fuel level sensor of the type including conduits at least one of which is formed in a helix configuration so as to locate and bias the inlet closely adjacent the fuel tank bottom irrespective of differences in the depth dimension of associated fuel tanks.

Abstract: A high volume covered railway hopper car is disclosed which has vertical end walls so as to fully utilize the space over the trucks of the car for lading volume. An automatic pneumatic unloading system is provided so as to unload a pulverant lading from the end compartments or hoppers, as well as the center, of the car, thus eliminating the necessity of sloped end sheets. A pneumatic loading system is provided which permits loading from below and thus permits the elimination of hatches, walkways, and the like on the roof of the car so as to permit the roof to extend substantially the full extent of AAR height clearances thereby to further maximize the lading volume of the car.

Abstract: A water supply recirculation system is provided having a recirculation pump and a duct into which the recirculation pump propels water. A selectively operated, closed at rest, flow valve is maintained open while the pump operates. A flow sensor serially installed in the recirculation duct detects flow and senses a failed condition. A second control valve which rests in an open position selectively prevents passage of water from the recirculation duct into a drain duct when pumping is in progress. The recirculation duct transmits water into a water supply tank and discharges it onto the central surface of the water supply in the tank. When pumping ceases, the first control valve closes, and the second control valve opens, allowing water in the duct to drain from the duct.

Abstract: A pressurized liquid conduit is broken or interrupted to provide an upstream inlet into a downstream outlet from a visual monitoring device. The device, which includes a collection chamber surrounding the conduit outlet and a transparent tube extending upwardly therefrom surrounding the upstream inlet is sealed in air tight relation around the liquid line on either side of the interruption. An air lock or bubble, greater in volume than the volume of the transparent tube, is contained in the chamber/tube assembly to maintain a constant pressure on the liquid collected in the chamber causing a controlled flow of liquid through the downstream side of the line. A baffle in the collection chamber disperses air bubbles, which might tend to form in the collected liquid, prior to the time the air bubbles reach the outlet in the chamber.

Abstract: An enclosed storage tank for a hot liquid comprising a metal shell with a flat metal bottom, a vertical cylindrical metal side wall and a metal roof; a vertical cylindrical internal wall, supported by the tank bottom, axially located in the tank to provide an annular space between the tank side wall and the internal wall; openings to provide gravity flow of liquid between both sides of the internal wall; and the internal wall comprising a plurality of interconnected insulating blocks constituting thermal insulation surrounded by a covering layer impervious and corrosion resistant to hot liquid to be stored in the tank. A method of storing thermal energy as a hot liquid in the tank is also disclosed.

Abstract: A fluid inlet distributor for a fluid treating vessel, comprising a chamber, preferably horizontally elongated, provided with at least one horizontal row of orifices along one longitudinal side, fluid inlet means, and at least one conduit, open at its bottom end, communicating with the chamber and extending downwardly therefrom. The chamber is otherwise closed. The distributor is useful for uniform feeding of an incoming fluid for horizontal flow in a fluid treating vessel.

Abstract: A heat storage tank is provided to receive a spent liquid from a heat transfer mechanism, to reconstitute the liquid and to return the reconstituted liquid to the heat transfer mechanism for another heat transfer cycle. The tank is divided into at least two compartments. Spent liquid is discharged into a first compartment near its lower portion. Means are provided for passing liquid from the first compartment to a second compartment by drawing liquid from the upper portion of the first compartment and discharging it near the lower portion of the second compartment. The liquid is then drawn from the upper portion of the second compartment and returned to the heat transfer mechanism.

Abstract: A low pressure delivery system for cryogenic liquids is disclosed, the system being capable of providing a stream of a single-phase cryogenic liquid at a substantially constant low pressure, in the range of about 1 psi. The system comprises a container into which a cryogenic liquid, from a high pressure source, is directed. The liquid in the container is maintained at a substantially constant level by an automatic filling mechanism. The liquid does not occupy all the space within the container, the remainder of the space being filled by gas evaporating from the liquid. This gas communicates, by a suitable conduit, with a pressure regulator valve. When the gas pressure exceeds a predetermined level, the valve opens, relieving the excess pressure. By thus placing an upper bound on the gas pressure, the system places an upper bound on the pressure of the liquid withdrawn from the container. The automatic filling mechanism of the system establishes a lower bound on the liquid pressure.

Abstract: An underground liquid storage tank that limits the filling of the tank to prevent it from being completely filled and to prevent spills from occurring when the tank is filled. The tank includes, in general, a hollow body having a plurality of standard openings through the top thereof for a fill pipe, a vent line, vapor recovery piping, pump system, gauges, etc. A cylindrical skirt is located within the interior of the body conterminous with each of the standard openings to cause an air "pocket" to be left in the top of the hollow body when the tank is filled.

Abstract: Disclosed is a system for conditioning a load using circulation of temperature controlled water where there is provided thermal storage means for holding varying volumes of water at different temperatures and the storage means comprises at least one tank having a constant cross-section between opposed vertical ends. A disc between the ends of the tank separates the tank into first and second variable volume chambers and prevents blending of water at different temperatures in the chambers. Conduits selectively feed water into one chamber while simutaneously removing water from the other chamber, the disc means moving in the tank in accordance with the feeding and withdrawal of water from the chambers whereby the volume of water in each chamber may vary but the total volume of water in the tank means is substantially constant.

Abstract: A reservoir for hydraulic fluids and hydrocarbon fluids having an outer tank, an inner tank contained therein, an inlet conduit for the delivery of fluids to the outer tank with a minimum of turbulence, an outlet for withdrawal of fluids from the inner tank, and a vent for venting air into and out of the outer tank.

Abstract: The invention involves positioning the working end of a vertical pump below the surface elevation of the fluid, enclosing a space around the pump with a structure extending below the surface and having a submerged opening to the main reservoir, and drawing a vacuum in the enclosed space in order to raise the surface elevation in the enclosed chamber in order to maintain a minimum working depth for the vertical pump that will prevent air entrainment by vortexing during periods of low fluid levels outside the chamber.

Abstract: In a boiling water reactor having a reactor pressure vessel, a reactor core disposed in the reactor pressure vessel, a plurality of reactor water circulators arranged on the circumference at equal intervals along the reactor pressure vessel and below the reactor core in the reactor pressure vessel and water spargers circumferentially arranged in the reactor pressure vessel, each of the water spargers comprises a plurality of vertical water supplying headers which surround the reactor core above and between adjacent ones of the reactor water supplying circulators and which have vertically arranged water spraying apertures directed to the reactor core.

Abstract: Fluid diffuser and method for constructing the same are disclosed. The fluid diffuser including a pair of disks having opposite, facing surfaces of revolution with a common axis of symmetry for defining a fluid flow path. The cross-section of the fluid flow path normal to the direction of flow is constructed and arranged so that the cross-section varies continuously with the radial distance from the common axis of symmetry so as to provide uniform fluid flow velocities in plane and in section at the periphery of the diffuser. The method for manufacturing the fluid diffuser includes rigidly fastening together a plurality of elements shaped to conform to the shape of the inner surface of the diffuser so as to form a skeletal frame. Thereafter, a unitary sheet of resilient material is stretched on the frame to cover the same thus causing the material to define the desired surface, the stretch material being fastened by suitable means to the frame.

Abstract: A system for delivering cryogenic liquids at controlled low pressures is disclosed, wherein the liquid is withdrawn from the bottom of a container, and allowed to flow by gravity to the point of use. The system comprises an inlet conduit which directs a liquid cryogen into the container. The inlet conduit is connected to a float valve assembly which regulates the height of the liquid in the container. The vertical position of the float valve assembly is adjustable. The liquid cryogen is withdrawn from the bottom of the container, through an insulated outlet conduit. The pressure of the output liquid is determined by the vertical distance between the lower end of the outlet conduit and the liquid level in the container. Adjustment of the position of the float valve assembly therefore controls the output pressure. Gas bubbles that may form in the liquid tend to rise to the top of the container, so that the output is of a single phase, that is, an essentially pure liquid.

Abstract: A leak containment kit for tank cars is disclosed. The kit is bolted to the manway cover of the tank car and surrounds all of the valves mounted on the manway cover. The kit provides means to connect each of the valves on the manway cover with a valve mounted on the external of the main body of the leak containment kit.

Abstract: Ink jet apparatus for utilizing hot melt ink is provided, comprising a printing head and a reservoir for holding a supply of hot melt ink, the reservoir having a normally open port or fill tube with an end face residing within the volume of the reservoir, the end face being located at about the volumetric center of the reservoir. The reservoir is maintained with an ink volume of no more than about half of the reservoir volume, so that ink can not spill through the normally open port when the apparatus is tilted.

Abstract: In a hydraulic system for a combine harvester, each of three subsystems is supplied with fluid through its own individual reservoir outlet. The total return flows from the three subsystems is distributed between two inlet ports of the reservoir. A pair of wire mesh delivery tubes is connected between the respective return inlet ports and two of the outlet ports. The hydraulic circuitry is arranged so that the return flow at each inlet port exceeds the supply flow demanded at the corresponding outlet port so that, while some of the return fluid is directly recirculated through the delivery tube to that outlet, there is a net flow outwards through the wire mesh of the tubes to mix with the fluid supply held in the reservoir.

Abstract: A heat transfer fluid storage device is provided, including a tank and one or more vertical chambers open at top and bottom and spaced from the top and bottom of the tank to define upper and lower liquid storage areas. Means are provided to extract liquid from either the lower storage area or the upper storage area, or both, deliver the liquid to heat exchanger means and then return the liquid to either the lower or the upper storage area, or both.

Abstract: A liquid branch flow guide conduit assembly for use in a magnetic apparatus for separating foreign matters from waste liquids containing such foreign matters. The liquid branch flow guide conduit assembly has a flat base having a center raised portion providing a recess in the undersurface of the base, a pipe support member provided on the base surrounding the raised portion in spaced relationship to the raised portion and having a center opening, an upright drain pipe extending uprightly from the raised portion through the opening in the support member and opening at the bottom into the center opening in the raised portion, an elbow connected at one end to the upper end of the upright drain pipe and a horizontal drain pipe connected at one end to the elbow and opening at the other end into the exterior of the magnetic separating apparatus.

Abstract: A suction container for two hydraulic circuits, particularly for a steering circuit and a control circuit has a housing lower portion closed with a cover. A suction tube is inserted into the housing lower portion, which tube is connected to a first consumer line. The container also includes connections which are in communication with a second consumer line and with a fluid supply container. During operation the suction container is under predetermined pressure. A filter device is disposed in the cover before the connection to the second consumer line. A pressure-limiting valve and a reverse valve openable into the container housing are also mounted in the cover.

Abstract: An apparatus for injecting a mixture of pure oxygen or oxygen-enriched air (at least 25 percent oxygen) and purge water into a wet oxidation reactor operating at elevated temperature and pressure. An annular space between the oxygen carrying pipe and a second, larger pipe is filled with heat transfer resisting material, either maintained static or passed through the annular space to remove heat therefrom. The temperature of the oxygen and purge water is maintained at less than 250.degree. F., preferably less than 150.degree. F. to minimize evaporation of the purge water. Thus, backflow of organic matter into the oxygen pipe is prevented; plugging of the oxygen pipe by salts is also prevented.

Abstract: In a power steering system, for a vehicle, including a reservoir, an engine-driven pump, a double-acting hydraulic piston-and-cylinder assembly and a steering-wheel-operated hydrostatic steering unit which can function as a manually-operated emergency steering pump, sufficient oil for emergency operation of the hydrostatic steering unit must be retained in the system if the connection between the outlet of the engine-driven pump and the inlet of the hydrostatic steering unit should fracture. The reservoir accordingly comprises an outer casing adapted to breath air at its upper end and having an outlet at its lower end adapted to communicate with the inlet of the engine-driven pump, and an inner casing having a port at its lower end adapted to communicate with a port of the hydrostatic steering unit and an oil outlet at its upper end communicating with the interior of the outer casing.

Abstract: A remote fluid reservoir blow-molded of polymeric material is provided with an antechamber for the reception of incoming high velocity fluid and impinging of same in a sinuous course on walls of the antechamber which are so configured as to smoothly reduce flow velocity and avoid undue turbulence upon introduction of the fluid into a main storage chamber.

Abstract: A valving system capable of maintaining a substantial flow rate to a low profile toilet bowl during bowl wash, bowl flush and refill, and storage tank refill. The system includes a tank refill tube and a bowl wash tube, with an adjustable restriction in one of them to balance the flow between them. When the toilet is flushed, water from the storage tank is emptied into the toilet bowl, causing the bowl contents to start to siphon out. A level-responsive valve opens when the tank level lowers, and supplies water both to the tank to refill it, and to the rim. It flows from the rim to wash the walls, to continue the flush, and to refill the bowl. A flow control can usefully be placed upstream from the valve so that a substantially constant flow rate results which is able to be accurately divided between the tank and the bowl, so that all functions are completed by the time the tank is refilled.

Abstract: A safety air gap system for an exemplary high volume evacuator having a water-sealed pump to provide suction thereto and including a gray water discharge from the pump to a drain, the system including a closed housing adapted to be mounted at a higher level than the evacuator, a reservoir for fresh water in the housing terminating a predetermined distance below the top, a coaxial pair of inner and outer tubes extending upward from the bottom of the reservoir and terminating above the top of the reservoir, the lower end of the inner tube receiving municipal water for discharge at the top to the outer tube which discharges the water at the lower end to the reservoir as controlled by a float-operated valve between the upper ends of the tubes, the housing having in one sidewall an outlet port connectable to a drain at a level below the top of the reservoir to prevent accidental filling of the housing with water in the event of a malfunction of the system, and an air gap opening positioned in a sidewall of the hou

Abstract: A fluidization unit comprising a fluidizer (2) and a chamber (1) for containing a granular, powdery or like substance (3) to be fluidized. The chamber has at least one air-tight wall and the fluidizer comprises an assembly of an air-tight base sheet member (5), a porous sheet member (4), and a peripheral sealing member (6), holding the sheet members apart in a fixed relationship. In operation, said fluidizer is placed in the chamber with its air-tight base member resting against an air-tight wall of the chamber. A preferred application is in the handling of powders for electrostatic enamelling.

Abstract: An apparatus and method is described and illustrated for maximizing the efficiency of a solar collector and the like as well as that of a liquid storage tank by maintaining the temperature of the liquid at the bottom of the tank at a relatively low point through the use of a temperature limiting valve which assures utilization of a major portion of the heat from the liquid by the load prior to transmission of the liquid below a predetermined temperature to a lower portion of the storage tank from which the liquid is again circulated as to a solar collector. Stratification is encouraged by introducing heated liquid from the collector to the storage tank at one or more raised positions, and by the use of velocity reducers such as are normally used to reduce turbulence, together with other temperature limiting apparatus which would limit the flow to high temperature liquid for efficient operation.

Abstract: The invention relates to a two-compartment reservoir for liquid, comprised of two superposed parts and provided with a transfer channel which opens into both compartments and which runs parallel to the plane of the liquid contained in the reservoir.The junction plane of the two parts of the reservoir is inclined, with respect to the bottom of each of them, at an angle ".alpha./2", which permits to manufacture with the same parts two types of reservoirs: the first one for horizontal installation and the other one for inclined installation, at an angle ".alpha.".Suitable grooves, provided in the walls, of the two parts cooperate in both cases to form the transfer channel parallel to the plane of liquid.The invention is particularly useful in hydraulic braking systems for automotive vehicles.