Abstract: A negative pressure pipeline opening-and-closing device includes a blocking member and a buoyant member. The buoyant member comprises two floats and a connection rod connected to the two floats. The liquid reservoir is provided with a guide therein, and the guide confines the two floats, the blocking member and the liquid outlet port in the same vertical line. A limiting member is arranged between the two floats and is fixed to an inner wall of the liquid reservoir. A maximum distance between the limiting member and a top wall of a lower float of the two floats is smaller than a maximum distance between a top wall of an upper float of the two floats and a top wall of the liquid reservoir. The negative pressure pipeline opening-and-closing device can replace an existing electrically controlled valve. Therefore, the cost is reduced, the maintenance is convenient and service life is prolonged.

Abstract: A fuel line check valve system and a fuel system that includes the fuel line check valve system are described. The fuel line check valve system may prevent flow into a fuel system that is generated via a vacuum in the fuel system. The fuel line check valve system may also remain in an open state after it is open via a reduced pressure.

Abstract: A system for preventing over pressure in a flexible tank when connected to a water grid that includes the flexible tank and a control unit. An inlet of the tank is connected to the water grid through the control unit. The control unit includes a closed box, an inlet that is connected to the water grid, an outlet that is connected to the inlet of the tank, and a float valve. The user place the flexible tank and set the float so that it will be opened or closed in a certain height of activating water level in the control unit and to place the control unit in a way that the activating water level is at the same level of a desired water level of the flexible tank.

Abstract: There is provided a fuel tank including: a fuel tank main body enclosed by a floor wall, side walls and an upper wall; and a separator including a strut, a first plate portion in which a first penetrating hole that penetrates in a plate thickness direction is formed, and a second plate portion in which a second penetrating hole that penetrates in a plate thickness direction is formed, the second plate portion sandwiching the strut with the first plate portion and extending in a diametric direction at an opposite side of the strut from a side thereof at which the first plate portion is disposed, wherein at least one of shapes, sizes or numbers of the first penetrating hole and the second penetrating hole is set to be different such that fluid resistances at the first plate portion and the second plate portion are different.

Abstract: The disclosed subject matter relates to a valve device that includes a valve member located within a housing in which the valve member's operation can be bypassed. For example, the valve device can include a bypass device that has an input structure, a motion conversion structure, and an output structure. The input structure can include a portion configured to resiliently deform if a valve opening input force is applied to the input structure in an input direction. The motion conversion structure can be configured to convert the valve opening input force into motion of the output structure in an output direction that is non-parallel to the input direction. The output structure can be configured to move the valve member (e.g., from a closed state to an opened state in order to bypass normal valve operation) if the motion conversion structure is displaced in the input direction. The valve device can be used in various manners, and is particularly suitable for use in a patient fluid delivery system.

Abstract: A system for making an autoclave inert such that flame propagation is prevented in the event of spontaneous internal combustion, which thus prevents damaging the actual system or equipment, tools and parts, for which it essentially has sodium azide capsules which produce a chemical reaction when they reach an activation temperature, releasing nitrogen, making the chamber inert, venting equipment to prevent damage due to overpressure inside the chamber when the capsules have come into action and released the gas, a main cooling circuit and an additional cooling circuit for the capsules, all of this automatically controlled and managed by a control device.

Abstract: According to some embodiments of the present invention there are provided a method for calculating a volume of an individual falling drop of liquid by analyzing electromagnetic radiation (EMR) reception, the method comprising projecting electromagnetic radiation (EMR) from an EMR source, measuring the EMR using at least one EMR sensor when the EMR is partially interfered with by a drop falling between the EMR source and the EMR sensor, calculating a plurality of widths parallel to a vertical axis of the drop, each one of the plurality of widths is calculated according to a reception of a time correlated measured portion of the EMR, and calculating a volume of the drop by combining the plurality of widths and a velocity of the drop when the drop is falling between the EMR source and the EMR sensor.

Abstract: A drip chamber is described that is used in medical infusion therapy, wherein the drip chamber utilizes valving to control flow of one or more fluids to a patient. The drip chamber includes a body forming a chamber, wherein fluid may enter via two or more flow ports, and an output port, where fluid may exit the chamber. A float controls fluid flow through one or more flow ports into the chamber such that the flow exiting the chamber may be limited to a single fluid or a combination of the fluids entering the chamber. The float is configured to be retained within the chamber, and the float moves within the chamber based on a level of fluid within the chamber. The control characteristics of the float are determinable by attributing specific buoyancy and dimensions to the float.

Abstract: A fluid delivery Y-site is described that is configured to receive and control delivery of two or more fluid flows. Fluid flow is controlled within a chamber by a valve and float. Flow of a primary fluid into the chamber is reduced or halted by the movement of a valve. The valve may occlude a first flow port into the chamber in response fluid flowing from a second flow port into the chamber. A float is moveably disposed within the chamber and configured to engage the valve in response a fluid flow into the chamber from the second flow port. As fluid flow from the second flow port into the chamber is reduced or ceases, the valve and float allow the flow from the primary flow port to once again enter the chamber and exit from an outlet port.

Abstract: A pumpbox, the pumpbox being in fluid communication with one or more vessels, wherein the pumpbox comprises a classification portion and level control means adapted to control the level of fluid within the one or more vessels.

Abstract: A brine valve includes a housing having a first port, a second port, and a piston port. The piston port is fitted with a non-apertured water-sealing diaphragm. An external piston has a first end and a second end. The external piston second end pushes against the diaphragm. An apertured cap affixes over the piston port to retain the external piston in place. The external piston first end extends outside of the apertured cap. An internal piston is disposed within the housing and has a first end and a second end. The internal piston first end pushes against the diaphragm and against the external piston. A seal ring is disposed towards the second end and is fitted to seal the first port. A spring is placed against the internal piston second end. Pushing on the external piston first end moves both pistons to permit water to flow between the housing first and second ports.

Abstract: A tank which is primarily intended for spraying applications and mountable on an all terrain vehicle (“ATV”). The tank (10) includes a main tank section (11) which, in use, extends laterally of the ATV and at least one longitudinally extending arm 12. The pump assembly is located in a cavity (14) in the underside of the main tank section (11). A cover (15) can cover the cavity (14) to mount the pump assembly in place. The tank (10) can include a removable auxiliary tank (21).

Abstract: Auxiliary fuel tank systems for aircraft and methods for their manufacture and use. In one embodiment, an aircraft can include a fuselage, at least one engine, and a fuel system configured to distribute fuel to at least one of the engine and an aerial refueling manifold. The aircraft can further include an auxiliary fuel tank system operably coupled to the fuel system. The auxiliary fuel tank system can include a master tank assembly and at least one slave tank assembly. The master tank assembly can be removably installed in the fuselage, and can include a master tank body configured to hold fuel. The master tank body can be configured to pass through a door in the fuselage without disassembly. The slave tank assembly can be removably installed in the fuselage at least proximate to the master tank assembly, and can include a slave tank body configured to hold fuel.

Abstract: A liquid suction device for sucking liquid contained in a vessel is described herein. A liquid retention room having an inflow port and an exhaust port is inserted into the vessel via an opening at an upper part of the vessel and is dipped in the liquid. A suction tube connected to the exhaust port extends from the opening of the vessel. A float member provided in the liquid retention room is enabled to open and close the exhaust port. The liquid is retained in the liquid retention room when the retention room is dipped in the liquid and the float member is floated upward so as to open the exhaust port. The retained liquid is exhausted from the inflow port when the liquid is lessened to reach a predetermined volume or below, and the exhaust port is closed by the float member.

Abstract: A method for operating a converter for the energy conversion of fuel from at least one main fuel supply, and from at least one auxiliary fuel supply for operating the converter directly and/or by operating an auxiliary unit, comprises: detecting the amount of fuel in the main fuel supply; detecting the amount of fuel in the auxiliary fuel supply, at least with respect to a predetermined minimum amount; in response to the minimum amount being reached, generating a signal that blocks at least one of a) filling of the main fuel supply, and b) startup of the converter via a control unit; and deactivating the blocking in response to the auxiliary fuel supply being replenished.

Abstract: A buoyancy flushing apparatus is disclosed which comprises a reservoir for accumulating liquid, having an inlet for receiving liquid and an outlet chamber recessed in a bottom wall of the reservoir. The outlet chamber includes an outlet for draining liquid out of the reservoir. The apparatus further comprises an outlet valve movable between a down position where liquid accumulates in the reservoir and a raised position where liquid accumulated in the reservoir is flushed out via the outlet. The outlet valve comprises a ballast unit sized and shaped to fit loosely in the outlet chamber when said valve is in the down position; and a float unit topping the ballast unit to move the valve in the raised position by buoyancy when a sufficient amount of liquid is accumulated in the reservoir, thereby providing a passageway for liquid between the bottom wall of the reservoir and the valve leading to the outlet in the outlet chamber to flush liquid out of the reservoir.

Abstract: A magnetic automatic stop valve formed in a container of a medical fluid administration system has one magnetic element located in a float and another magnetic element located proximate a valve seat. As the fluid level in the container decreases, the magnetic field established between the float and the valve seat eventually overcomes the buoyancy of the float in the fluid and attracts the float into the valve seat at which position the flow of fluid from the container is stopped. The float is formed of two identical halves each of which has one half of an internal post. When joined together to make the float, the internal post is fully formed and extends from one end of the float to the other. One magnetic element is slid over the post during manufacture and is free to slide from one end of the float to the other.

Abstract: Fuel shut-off device for use in a diesel fuel tank to discontinue fuel flow to a fuel pump comprises a valve seat forming a fuel flow opening for fuel to flow from the fuel tank to the fuel pump, a fuel control valve cooperably disposed relative to the valve seat to control fuel flow from the fuel tank to the fuel pump, and a spring biasing the fuel inlet valve to a closed position against the valve seat. A diaphragm is provided having a first valve-actuating side for moving the fuel inlet valve relative to the valve seat against bias of the spring and a second side. The second side is communicated to a control chamber having an inlet orifice that is communicated to the fuel tank and an outlet orifice that is communicated to said fuel pump.

Abstract: A fluid flow control valve having a cam disposed near an opening of a fuel passage. The cam is operable to be rotated about a shaft by the action of a float. As a fluid level in a tank changes, the cam rotates from an open position remote from the opening to a closed position (as illustrated) proximate the opening. A gap remains between the cam and the opening, thereby allowing the fluid level to be drawn down to the bottom of opening. Float has a generally wedge shaped cross-section to minimize the effect of wave action in the fluid.

Abstract: A multi-level fuel pickup system has a float valve in communication with a first fuel passage having an open end disposed at a first height within the fuel tank spaced from the bottom of the fuel tank to prevent fluid flow through the first fuel passage when liquid fuel is absent adjacent its open end. A second fuel passage communicates adjacent the bottom of the fuel tank and below the first height and fuel is drawn through this fuel passage when a low level of fuel remains in the fuel tank. A fuel control valve is manually adjustable to control through which of the fuel passages fuel is drawn. Preferably, each of the fuel passages is at least partially formed in a valve body mounted within the fuel tank and the float valve comprises a spherical float received in a bore in the valve body and is responsive to the level of fuel within the bore.

Abstract: A medical dye delivery system includes a medical dye container and a syringe for withdrawing the medical dye from the container and delivering the dye to a patient. A valve is disposed in the system having an inlet in flow communication with the medical dye container and an outlet in flow communication with the syringe. The valve includes a housing defining a flotation chamber with a valve seat and a flotation member disposed therein. The flotation member seals off the valve seat opening upon medical dye depletion, forcing any remaining fluid flow through a bypass channel that provides restricted flow to provide a tactile warning to the operator of the system that the medical dye container is depleted, yet allow the operator to purge remaining dye from the system.

Abstract: An automatic shut-off valve for regulating the flow of beer or other liquid from its container, whereby a float is kept away from the outlet by directing some of the liquid upwardly against the float while most of the liquid is being discharged. The discharge of liquid is usually accompanied by a suction about the outlet which tends to suck the float downwardly to seal the outlet prematurely. By the present valve and the location of the float during discharge of liquid, premature sealing is minimized.

Abstract: A float actuated water level control valve has a sliding valve tube depending from a float to meter the amount of water flow through the valve proportionally in response to the position of the float. The valve is especially useful for controlling the water level in an aquarium overflow filter system. The valve inlet has an adjustable flow area which is defined as the area between a lower edge of the sliding valve tube and an upper edge of a drain. The configuration of the lower edge of the sliding valve tube and the upper edge of the drain are selected to provide increased flow area linear to the position of the float. The valve inlet is submerged, and drain gurgling sounds are thereby muffled. In addition, the valve maintains the water level within the reservoir at a height above the valve inlet, which is especially useful for reducing splashing sounds from water spilling over an overflow wall in an aquarium.

Abstract: A flow passage closing mechanism of a beverage pouring apparatus for supplying the beverage to a dispenser by pushing the beverage in the keg due to the pressure of gas introduced therein. The mechanism includes a first connecting portion to be connected to the key, a descending tube connected to the first connecting portion, a floating ball movably inserted into the descending tube, a valve seat formed at a lower end portion of the descending tube, a separating mechanism for lifting the floating ball form the valve seat, and a second connecting portion to be connected to the dispenser. When beverage in the keg is used up, the flow passage closing mechanism closes the flow passage of the beverage pouring apparatus by pushing the floating ball to the valve seat. The flowing path is reopened by the separating mechanism.

Abstract: A flow passage closing mechanism of a beverage pouring apparatus for supplying the beverage to a dispenser by pushing the beverage in the keg due to the pressure of gas introduced therein. The mechanism includes a first connecting portion to be connected to the keg, a descending tube connected to the first connecting portion, a floating ball movably inserted into the descending tube, a valve seat formed at a lower end portion of the descending tube, a separating mechanism for lifting the floating ball from the valve seat, and a second connecting portion to be connected to the dispenser. When beverage in the keg is used up, the flow passage closing mechanism closes the flow passage of the beverage pouring apparatus by pushing the floating ball to the valve seat. The flowing path is reopened by the separating mechanism.

Abstract: A system and method are disclosed for collecting cutting fluid and chips from a number of machine tools and includes a series of sumps each collecting chips and fluid at a particular machine tool, and a central sealed collection tank drawing from all of the sumps by drawpipes inserted in each sump. A single large capacity pump pumps to filtration equipment, with a predetermined vacuum level maintained in the tank by opening and closing an outlet valve between the pump and the filtration equipment. A level switch at each sump causes intermittent opening of an associated valve causing each sump to be placed in communication with the vacuum in the collection tank, and random opening of the valves causes individual sumps to be emptied by the full suction at the collection tank. The drawpipes are equipped with antivortex end shapes to allow rapid evacuation without drawing air into the system. A vacuum pump removes excess air accumulating in the collection tank.

Abstract: An engine oil regulating device may monitor and regulate a fluid level for stationary engines or compressors for gravity feed and pressurized oil applications. Oil may be received in a float chamber that may have a safety shutdown float and an oil level regulating float. The engine oil regulating device may also include a safety shutdown mechanism to actuate an alarm and/or a shutdown switch such as an ignition cut-off switch. The safety shutdown mechanism may be configured as a single switch or a plurality of switches. A two switch safety shutdown mechanism may utilize a side-by-side layout or a stacked layout. The safety shutdown mechanism may include a high-low level shutdown, low level shutdown only, or high level shutdown only. A testing mechanism such as a rotatable test knob assembly may be provided to test the safety shutdown mechanism. An engine oil level adjusting mechanism such as an adjustable threaded thumb valve orifice member may also be provided.

Abstract: A sump system and method for collecting liquid from a number of locations includes a series of sumps each collecting liquid at a particular location, and a central sealed collection tank drawing liquid from all of the sumps by overhead draw pipes. A single large capacity pump pumps liquid back to filtration equipment, with a predetermined vacuum level maintained in the tank by opening and closing an outlet valve between the pump and the filtration equipment. The collection tank may be initially filled from an overhead clean supply header.

Abstract: A fuel delivery device is reduced in size by reducing the size of a float, and has reliability in operating its valve means and favorable response of the valve means, and general applicability to various vehicle types. As for a manufacturing method of the device, ultrasonic welding with resin which is the most preferable method considering the material and the cost is employed so that the designed valve opening/closing reliability and response can be easily achieved. For realizing such a device, this invention provides a multi-stage valve assembly in which a plurality of valves are provided, the uppermost valve is connected to a float, and slide members which have stoppers provided on the distal ends thereof and are provided on one of the valves which make a pair, are inserted in guide members provided on the other valve in such a manner that the stoppers can be engaged with the guide members.

Abstract: A fluid shut off valve for use in a parenteral fluid administration set includes a disk floating in a fluid chamber that shuts off fluid flow when the fluid in the chamber decreases below a certain level. The chamber includes a valve stem at its lower end that has both a valve seat and an alignment member with an alignment surface on the top end thereof for guiding the disk into proper seating on the valve seat. The valve seat and floating disk have complementary engagement surfaces for also guiding the disk into proper seating on the valve seat. In one embodiment, the alignment member includes fins located both on the valve stem and on the inside wall of the chamber. Because of the configuration of the alignment member, dislodgement of the disk from the valve seat is made easier.

Abstract: A dropper-controller including a reservoir connected with a dropper bottle containing a liquid medicine, and an automatically sealing member formed by a cup-like buoyage and disposed in the reservoir. When the liquid medicine gradually drops from the dropper bottle into the reservoir, the buoyage is buoyed up and automatically open a lower discharging opening of the reservoir, permitting the liquid medicine to flow through a hose to an injection needle for injection. When the liquid medicine in the dropper bottle is about exhausted, the level of the liquid medicine in the reservoir descends, making the buoyage together move downward onto the discharging opening of the reservoir and seal the same so as to interrupt the passage of the liquid medicine.

Abstract: A gravity flow chemigation system (10) is disclosed which generally consists of chemical supply tank (37), in which chemical (29) is contained, a supply line (37) connected to the bottom of chemical supply tank (36), and a low-level shutoff valve (11) suspended across an irrigation ditch (39) and partially below the surface of irrigation water (38). Chemical enters the valve (11) from supply line (37) through air vent tube (21) and inlet (18). The chemical (29) within supply line (37) will continue to flow through valve (11), out outlet (15) and through outlet screen (28) to mix with irrigation water (38) as long as the level of irrigation water (38) remains at a level above converging valve seat (16) of lower float valve (13). Once the level of irrigation water (38) falls below valve seat (16), lower float (17) will engage the lower converging valve seat (16) and close off the valve which will not reactivate until manually reset, even if the irrigation water level rises.

Abstract: An automatic liquid pump contained within a sealed pressure vessel. The pressure vessel includes a liquid inlet opening, a liquid outlet opening, a gas inlet and a gas outlet. A preloaded float-operated over-center valve mechanism closes the gas inlet valve and opens the gas outlet valve to permit vapor to vent through the gas outlet valve. The over-center valve mechanism alternately closes the gas outlet valve and opens the gas inlet valve to admit compressed gas into the sealed vessel to evacuate the liquid within the sealed vessel through the liquid outlet opening. A float valve is coupled to the liquid outlet opening for closing the liquid outlet opening when the liquid in the vessel drops below a first predetermined level. As a result, vapors are prevented from escaping through the liquid outlet opening under all operating conditions.

Abstract: The present invention provides a check valve which, when placed at the end of a pump suction pipe, allows the pump to draw fluid therethrough from a continuously replenished, below-ground fluid source. When the fluid in the fluid source has been depleted to a level below that which allows fluid to be drawn therefrom by the pump, the present check valve maintains the suction pipe full of fluid. The check valve also maintains the suction pipe full of fluid when the pump has been shut off. In this manner, the pump can resume drawing fluid from the fluid source without the need for priming.

Abstract: An in-take fuel supply system for a fuel tank that tilts in service comprising a manifold and a plurality of suction pipes that are pivotally attached to inlet ports of the manifold. Each suction pipe extends outwardly of the manifold and has a float valve at the remote end for closing the suction pipe in the absence of sufficient fuel to prevent ingestion of significant amounts of air and vapor. The suction pipes are biased to a horizontal position by springs that allow a fold down configuration for installing the fuel supply system in a fuel tank through a small installation hole.

Abstract: An in-take fuel supply system for a fuel tank that tilts in service comprising a manifold and a plurality of suction pipes that are pivotally attached to inlet ports of the manifold. Each suction pipe extends outwardly of the manifold and has a float valve at the remote end for closing the suction pipe in the absence of sufficient fuel to prevent ingestion of significant amounts of air and vapor. The suction pipes are biased to a horizontal position by springs that allow a fold down configuration for installing the fuel supply system in a fuel tank through a small installation hole.

Abstract: This invention relates to a free float steam trap which comprises a trap casing having an inlet port and an outlet port and a valve chest formed therein, a valve seat member attached to the lower portion of the valve chest and having a valve orifice opened through which the valve chest communicates with the outlet port, a float valve arranged in a free state in the valve chest, rising and descending in accordance with the water level in the valve chest to directly open and close the valve orifice and a means for dispersing and passing condensate flow downward, provided at a fluid inlet through which the inlet port communicates with valve chest.

Abstract: A simple flow control device is provided in a condensate drain pipe to prevent the flow of refrigerant vapor therethrough and to regulate the flow of liquid refrigerant as a function of the level of accumulated liquid refrigerant in the drain pipe. The only moving part is a float device that rides up on a cylindrical valve body in response to the level of liquid refrigerant to thereby expose slots in the valve body which allow for the flow of liquid refrigerant to the refrigerant return line to the cooler.

Abstract: A reservoir outlet control device for controlling fluid flow from a reservoir. The device is particularly suitable for controlling fluid outflow from a blood collecting and blood delivery reservoir.

Abstract: An apparatus for distributing liquid fertilizers, pesticides and other chemicals by aspiration into irrigation conduits. Liquid passing through a conduit attached to a storage vessel syphons the chemicals out of the storage vessel and into a liquid distribution system. An anti-backflow check valve is provided to prevent liquid from entering the supply container when liquid flow is stopped in a liquid distribution system. A float-controlled valve is also provided which closes when the liquid level in the supply vessel reaches a predetermined level in order to prevent air from entering the system. The amount of chemical aspirated into the liquid distribution system is controlled by a valve. The apparatus is easily assembled and disassembled for cleaning or repair, and can be connected to existing liquid distribution systems. Larger or remote reservoirs can be incorporated depending on the application.

Abstract: A flow regulator comprises a float valve body provided in an inner container which in turn is fitted in a lower portion of an outer container. The float body has an elongated slender upper portion which is suddenly restricted at an upper side and an elongated tapered lower portion. The slender upper portion extends through a central opening of a first plate at the top end of the inner container. The tapered lower portion passes through a valve seat of a second plate placed below the first plate and extends beyond a restricted tubular bottom end of the inner container. A flexible tube is sleeved on said tubular bottom end and receives the end of the float body. By moving the flexible tube, the float body can be moved away from the valve seat. A further valve seat may be formed in the tubular bottom end of the inner container.

Abstract: A float controlled siphon discharge valve mechanism operates to drain water from a swimming pool cover, and includes a lever arm attached at one end to a hinge and having a float on the other end so that the lever is of the second or third type. A closure control is also included to sense for the presence of water immediately adjacent to the drain opening, and includes a spring loaded control arm connected to the lever arm to force the lever arm into a drain occluding position even if the float does not move that lever arm into such a position in order to ensure that the siphon is not broken even in the event that the float operation malfunctions.

Abstract: A fuel system for internal combustion engines which includes a fuel reservoir canister containing an electric fuel pump mounted in a fuel tank. A diaphragm-controlled valve isolates the reserve fuel from the pump inlet under normal operating conditions but a low fuel level will cause the valve to open to admit reserve fuel to the pump inlet. A float valve supplements the diaphragm controlled valve to close the reserve canister from the pump inlet when reserve fuel in the canister is near depletion.

Abstract: A fuel tank construction comprising a tank and a sump is disclosed which construction includes a float operated water separator. The separator operates automatically to drain water which has separated out and accumulated at the bottom of the sump. The separator is in the sump which is secured to the underside of the tank. The tank has an opening through which the sump and tank communicate, and there is a normally open one-way valve in this opening. This valve prevents water and solids flowing back into the tank from the sump if the tank construction is inverted. Within the tank there is a filter through which fuel flows to reach the fuel outlet line. The filter is normally spaced along the tank from said opening but can be displaced to a position overlying the opening when access to it through said opening is required for servicing purposes.

Abstract: This invention relates to a hydrostatic float valve for use in a fluid feed system that is capable of automatically shutting off the flow of fluid to a body cavity of a patient whenever additional or more rapid flow of said fluid would harm said patient and also relates to a fluid delivery system of the intravenous type that incorporates said hydrostatic float valve.

Abstract: Described is an assembly that is interposed between the main fuel supply and the fuel injection system of a fuel-injected gasoline engine or diesel engine. When the main supply of fuel becomes exhausted, the assembly (i) automatically shuts off the flow of fuel to the fuel injection system, (ii) causes the engine to cease operating through fuel starvation, and (iii) prevents air from entering the fuel injection system. The assembly forms and utilizes a reserve supply of fuel and utilizes the vacuum created by the fuel-starved engine in such a way as to insure that no air becomes entrained in the fuel injection system when operation of the engine is resumed with a replenished fuel supply.

Abstract: A device for controlling the flow through a suction pump to prevent loss of prime usable especially in narrow ditches and similar smaller areas, and consisting principally of a float controlled valve adapted to regulate the flow of fluid into the pump. The entire device is enclosed is a cylindrical casing adapted to be placed in a relatively small hole.

Abstract: A fluid flow regulator includes a resilient hollow sealing body which is fitted in the bottom part of a liquid housing adjacent to a tubular outlet end and which has a central through-hole to communicate to one another the chamber of the housing and the outlet end. An annular flange which extends from the top of the sealing body toward the through-hole forms a valve seat against which a float valve can be efficiently and tightly seated. A movable tube is inserted in the tubular end to be used to manually release the float valve from the valve seat.

Abstract: Apparatus for regulating the flow of a subject fluid which includes immiscible fluids having differing densities such as oil and water, wherein plug means are provided which sink in oil and float in water, said plug means being positioned to control the flow of fluids through a scupper aperture. The plug means cause a sealing surface to move in and out of contact with the scupper aperture. Means are provided to enhance the separation of the sealing surface from the scupper aperature when fluid flow is to be permitted, and to increase the fluid tightness of the seal when fluid flow is to be prevented. Means are also provided for reducing the effects of turbulence in the subject flow, and hence to enhance the separation of the immiscible fluids from one another.

Abstract: A method for operating a converter for the energy conversion of fuel from at least one main fuel supply, and from at least one auxiliary fuel supply for operating the converter directly and/or by operating an auxiliary unit, comprises: detecting the amount of fuel in the main fuel supply; detecting the amount of fuel in the auxiliary fuel supply, at least with respect to a predetermined minimum amount; in response to the minimum amount being reached, generating a signal that blocks at least one of a) filling of the main fuel supply, and b) startup of the converter via a control unit; and deactivating the blocking in response to the auxiliary fuel supply being replenished.