Abstract: A pressure regulator includes a downstream body delimiting a low pressure chamber; an upstream body delimiting a high pressure chamber and carrying an expansion seat; a movable piston having an inner channel having an upper end forming a discharging seat and a lower end opening onto an intermediate chamber connected to a leakage circuit; a tubular valve rod passing through the inner channel of the piston and an inner channel of the upstream body, having an upper end forming a discharging valve and a lower end forming a regulating flap suitable for bearing on the expansion seat; a first biasing member compressed between the piston and the upstream body by biasing the piston towards the downstream body; and a second biasing member compressed between the piston and a plate secured to the valve rod, biasing the rod in the direction of pressing the discharging valve against the discharging seat.

Abstract: A method for transferring volatile liquid from a refueling tank to the fuel tank of an internal combustion device including the steps of providing a volatile liquid refueling apparatus, having a probe including an outer collar and a receiver including a receiving collar, where the outer collar and the receiving collar are configured to join to create a vapor-tight enclosure, installing the receiver in the fuel tank of an internal combustion device, installing the probe in the refueling tank, inserting the probe into the receiver, engaging the receiving collar and the probe outer collar to create a vapor-tight enclosure, transferring volatile liquid from the refueling tank to the fuel tank, and disengaging the probe from the receiver, including sealing the refueling tank and the tank.

Abstract: A fuel dispensing nozzle of a fuel dispensing system comprising a lockout mechanism that prevents the delivery of fuel when the fuel nozzle is not inserted into a fuel reservoir. The fuel dispensing nozzle includes a lookout plunger selectively restrained from movement by a rocker arm. The rocker arm maintains a freely moveable condition or a constrained turn movement condition based on the status of the fuel nozzle.

Abstract: A volatile liquid refueling apparatus, which includes a probe including an outer collar, and a receiver including a receiving collar, where the outer collar of the probe and the receiving collar of the receiver are configured to join to create a vapor-tight enclosure, and where the receiver further includes a locking mechanism whereby the apparatus can be locked in an open position.

Abstract: A suction method that sucks inside of a filling nozzle used for supply of hydrogen by using a suction nozzle that is engaged with the filling nozzle, the suction method comprising: evacuating a vacuum chamber by using a vacuum pump; and sucking inside of the suction nozzle by using the evacuated vacuum chamber.

Abstract: A safety interlock nozzle for use with a safety interlock mechanism is disclosed which comprises a base having an interlock contact surface at a first end and alternating tabs at a second end, a body having alternating tabs at a first end that mate with the alternating tabs of the base, a channel within the body positioned at a second end, a ring clamp for connecting the tabs of the base to the tabs of the body, a splash guard having a first end for contacting with a filler neck housing and a second end having a slot formed therein, the second end capable of fitting within the channel of the second end of the body, and a spring for being captured within the channel in the body and the slot within the splash guard, the spring for connecting the splash guard to the body.

Abstract: A liquefied gas storage/delivery system and method that includes a liquefied gas storage system. The liquefied gas storage system includes a housing containing a storage vessel suited to contain a supply of liquefied gas, such as liquid oxygen (LOX). A rotatable turntable is provided on an exterior surface of the housing. An interface shaped to match the shape of at least a portion of a portable liquid storage/delivery device is provide in or on the turntable. A connector is disposed in the interface that couples to a corresponding connector on the portable liquid storage/delivery device. The two connectors are coupled by placing the portable liquid storage/delivery device in the interface and rotating the turntable.

Abstract: The present invention relates to a locking fuel pump fuel dispenser nozzle and especially to a locking fuel pump fuel dispenser nozzle having a locking mechanism for automatically locking a fuel nozzle spout in the vehicle filler tube whenever fuel is being pumped into the vehicle filler tube and fuel tank and which can be unlocked only when fuel pressure from the fuel pump is cut off.

Abstract: A system for disabling a vehicle carrying a storage tank includes a coupler component supported by the vehicle for receiving a connection from a delivery line. A cap is attachable to an end of the coupler component for preventing connection of the delivery line when the cap is attached. A proximity sensor is disposed outside of the coupler component and senses whether the cap is attached without making contact with the cap. A switch is in electrically connected to the sensor and disables at least one drive element of the vehicle, e.g., the transmission, when the cap is not attached to the coupler component.

Abstract: A liquefied gas storage/delivery system and method that includes a liquefied gas storage system. The liquefied gas storage system includes a housing containing a storage vessel suited to contain a supply of liquefied gas, such as liquid oxygen (LOX). A rotatable turntable is provided on an exterior surface of the housing. An interface shaped to match the shape of at least a portion of a portable liquid storage/delivery device is provide in or on the turntable. A connector is disposed in the interface that couples to a corresponding connector on the portable liquid storage/delivery device. The two connectors are coupled by placing the portable liquid storage/delivery device in the interface and rotating the turntable.

Abstract: Petrol Pump Safety Nozzle is a device for petroleum fuel pumps consisting of a retractable sleeve attached to a nozzle. The sleeve moves upward when it engages the perimeter of a petroleum gasoline receptacle. The sleeve is connected to a trigger release to allow the trigger to move and dispense gasoline. To use the preferred embodiment of Petrol Pump Safety Nozzle, a user inserts the device into a petroleum gasoline receptacle opening causing the retractable sleeve to expose the nozzle and to actuate the sliding trigger release to permit the trigger to dispense gasoline. When this device is placed inside a standard diesel fuel receptacle opening, the width of the opening will prevent engagement with the retractable sleeve and fuel cannot be pumped.

Abstract: A fuel dispensing nozzle is provided with fuel activated levers that engage the vehicle fill pipe to prevent drive-off without paying. Fuel pump pressure acts on plungers to pivot fill pipe levers, against spring pressure, to lock the two together. Movement of the levers is initially prevented by a trigger that is spring biased forward on the nozzle spout. Since the fill pipe is not large enough to pass the trigger, insertion of the spout into the fill pipe moves the trigger against spring pressure to uncover the levers. The levers are locked to the fill pipe as long as pump pressure is present. Removal of fuel pressure allows the levers to be withdrawn by spring action. A breakaway joint is provided to stop fuel flow in the event of drive-off with the fuel nozzle in a fuel filled pipe.

Abstract: Drive off is prevented by having a grasp assembly engage the restrictor plate of the fill pipe of a motor vehicle when the nozzle spout is inserted. After the fuel pump is started and pressure is placed on the fuel, fuel is admitted into the nozzle by pressing on the hand lever to open the poppet valve. Fuel pressure in the nozzle activates a lock actuator system, to prevent removal of the spout from the fill pipe, by a lock system that prevents a grasp assembly latch from retracting from the fill pipe restrictor plate.

Abstract: A decorative sheet with good design properties and with superior moldability, without using a vinyl chloride resin, comprises a base material layer formed of a coloring resin material including an amorphous polyethylene terephthalate type resin as a main component; a print pattern layer formed on one surface of said base material layer and formed of a coloring ink comprising a binder including a copolymer of vinyl chloride and vinyl acetate as a main component; a transparent layer laminated on said print pattern layer and formed of a resin material including a transparent amorphous polyethylene terephthalate type resin as a main component; and a surface protective layer laminated on said transparent layer, which is made of a hard and transparent acryl type resin. The surface protective layer is constituted of a transfer protective layer of a transfer foil.

Abstract: A breakaway separation detection and alerting system. A breakaway fuel hose is connected to a fuel pump. A breakaway unit connects the nozzle hose section and the fuel pump hose section of the breakaway fuel hose together. When the breakaway fuel hose is subject to tension in excess of a predetermined load, the breakaway unit will separate. An alarm activation device will then activate an alarm capable of alerting an individual remotely located from the breakaway fuel hose. In a first preferred embodiment, the at least one alarm is a first alarm and a second alarm. The first alarm is located in proximity to the fuel pump and the second alarm is located remotely where a fueling station employee can monitor it. The first preferred embodiment also has a transmitter and a receiver. When a breakaway separation condition occurs, the first alarm sounds. Also, the transmitter sends a signal to the receiver. The receiver then activates the second alarm, alerting the remotely located fueling station employee.

Abstract: A vapor recovery system nozzle capable of responding to the presence of an onboard vapor recovery system (ORVR) in an automobile. The invention includes a vapor recovery nozzle having a vapor passage in its nozzle spout and a vapor inlet in communication with the vapor passage. The spout includes a moveable seal mounted on the spout with the seal having a first position adjacent to the plurality of vapor inlets and a second position covering the vapor inlets so as to substantially block the passage of vapors through the vapor inlets. The seal may be biased in the second position.

Abstract: A water purifier includes a storage vessel for storing purified water. A dispensing spigot is connected to the vessel. The spigot includes a valved body and a lever for operating the valve. The lever can be rotated rearwardly from an "off" position to temporarily dispense water, i.e., to dispense water so long as a rearward force is applied to the lever. When the rearward force is relieved, the level automatically returns to the off position. The lever can also be rotated forwardly from the "off" position to continuously dispense water, i.e., to dispense water until the lever is forcefully rotated rearwardly by the user. A stop pin is removably mounted in the lever to prevent the lever from being rotated forwardly from the "off" position until the pin is removed, thereby preventing the continuous dispensing mode from being accidentally initiated.

Abstract: An apparatus and method for efficiently metering and transferring a cryogenic liquid, such as liquefied natural gas, from a storage vessel to, for example, a vehicle fuel tank. The apparatus incorporates a programmable controller, a motor-driven pump and a network of conduits with motor-operated valves and liquid sensors for effecting a priming of the pump with liquid free of vapor and a cool-down of the flow passages prior to a transfer operation for ensuring that a vapor-free liquid is delivered. A pair of flow meters, one for liquid and the other for returned vapor, allows a reliable determination of the amount of liquid delivered to--and remaining in--a receiving vessel. The apparatus employs a delivery nozzle with quick-disconnect valved fittings and a delivery nozzle incorporating features which allow it to be handled by an operator without the use of heavy gloves.

Abstract: This invention relates to systems in which fluid, usually liquid fuel (typically diesel fuel oil) is transferred from a supply station to a tank on a vehicle such as a truck or bus by means of a hose, an automatic shutoff nozzle and a fill neck on the vehicle tank. In the system, both a nozzle extension and a quieting tube arrangement are provided which extend into the tank so that they are in close proximity to the bottom. In this manner the impact of fuel forming is substantially reduced and hence false shut offs of fuel supply are eliminated.

Abstract: A safety device for vehicles for preventing accidental driving off with the vehicle from a fuel pump without first removing a fuel dispensing nozzle from the tank of the vehicle. When the fuel dispensing nozzle is in the spout of the tank, a solenoid valve is activated to disengage the ignition system and/or illuminate alarm lights and audible signals.

Abstract: A method and assembly (10) to prevent the dripping of a liquid dispensing nozzle (100) after deactivation of the nozzle and to automatically deactivate the nozzle when it is removed from the fuel tank (150), is described. The non-drip valve assembly is attached to the dispensing end (104B) of the nozzle and includes a housing (12) within which is mounted a valve (14) comprised of a stopper (16) and a spring (18). When the nozzle is activated, the liquid pressure on the extreme end (16D) of the stopper moves the stopper out of the opening (12E) in the proximal end (12A) of the housing which allows the liquid to flow into the housing around the stopper and out through the apertures (12G) in the sidewall (12C) of the housing. When the nozzle is deactivated, the spring biases the stopper into the opening which prevents liquid remaining in the spout from escaping. A shut-off sleeve (112) is mounted around the spout of the nozzle and has a spring and ball plunger (116) and a locating detent (124).

Abstract: A fuel dispensing nozzle and a method utilizing that dispensing nozzle, are provided, the method comprising the steps of: providing a sealing means effective to mate in a sealing relationship with a fuel tank inlet, the sealing means comprising a boot having an elastomeric sealing surface, a source of pressurized gas, a channel providing communication from the source of pressurized gas to outside of the boot wherein pressure on the elastomeric sealing surface restricts flow through the channel, and a means to block fuel flow through the fuel dispensing nozzle when a threshold pressure or greater exists at the source of gas supply, the threshold pressure indicative of a sealing relationship between the sealing surface of the boot and a fuel tank inlet; mating the sealing surface to the fuel tank inlet; and passing fuel into the fuel tank only when the pressure within the gas supply conduit exceeds the threshold pressure.

Abstract: An improved vapor recovery system for a fuel dispensing nozzle having an automatic shut-off. The improvement includes a lockout for activating the automatic shut-off, an activating collar having one end adjacent to the lock-out and able to engage the lock-out when the nozzle is dispensing fuel, and a seal enclosing the lock-out and the collar, the seal having (i) a cup-shaped portion at end that fits over and circumferentially around the fuel inlet while the nozzle is dispensing fuel, (ii) a middle portion that compresses while the nozzle is dispensing fuel, and (iii) an interior constriction that engages the end of the collar opposite of the lock-out so as to prevent back splashed fuel from entering the portion of the seal enclosing the collar.

Abstract: A vapor recovery nozzle employed in minimizing atmospheric pollution by fuel vapors is described. The nozzle comprises a bellows which is compressed against the fill pipe of a vehicle during discharge of fuel therein. The bellows surrounds a nozzle spout to define a vapor return flow path which extends through a nozzle body. The body of the nozzle is compositely formed by a body member and a vapor path cap which compositely define the vapor return flow passage. Flow of fuel is controlled by a valve which may be opened by an operating lever only when a trip stem is latched in an operative position. A mechanical interlock prevents latching of the trip stem unless the bellows is compressed. When the bellows is so compressed, the trip stem is latched. If the level of fuel in the fill pipe covers the end of the spout, vacuum actuated means unlatch the trip mechanism stem. If the pressure in the vapor return flow path rises to a level indicating a blockage in return flow, time trip stem is also unlatched.

Abstract: A filling device for transportable containers and other suitable receptacles for the receipt of liquids, which facilitate a reliable and particularly feasible indication of faulty conditions encountered during operation in consideration of the handling thereof. A valve which closes off a filling tube of the container is actuated in dependence upon the connecting conditions of the filling device to the container; such as a tank container. When the filling device is not adequately coupled with an inlet pipe or any other device of the tank container, flow of liquid filling material cannot be initiated inasmuch as this flow is positively inhibited by the valve. Pursuant to another aspect, a vent or relief valve is automatically actuated in dependence upon the connected condition. The vent valve is also only first opened then when there has taken place a satisfactory or proper coupling with the respective tank container.

Abstract: A hose nozzle for filling fluid into a tank and for shutting off automatically when the tank is filled is provided. The hose nozzle comprises a housing that has an inlet nozzle and an outlet pipe at opposite ends of the housing and a grip portion of an area of the inlet nozzle. A flow valve is disposed in the housing between the inlet nozzle and the outlet pipe whereby the flow valve further comprises a valve rod. A control device is provided that comprises a pressure channel and a plunger-type control element, for closing the flow valve depending on a pressure present in the pressure channel, against a direction of fluid flow, whereby the control device is disposed in the housing between the inlet nozzle and the flow valve and whereby the pressure channel is connected to a port of the outlet pipe. A manual lever, disposed within the grip portion and connected with one end thereof to the control device, actuates the flow valve and controls a fluid flow from the inlet nozzle to the outlet pipe.

Abstract: A filling device for transportable containers and other suitable receptacles for the receipt of liquids, which facilitate a reliable and particularly feasible indication of faulty conditions encountered during operation in consideration of the handling thereof. A valve which closes off a filling tube of the container is actuated in dependence upon the connecting conditions of the filling device to the container; such as a tank container. When the filling device is not adequately coupled with an inlet pipe or any other device of the tank container, flow of liquid filling material cannot be initiated inasmuch as this flow is positively inhibited by the valve. Pursuant to another aspect, a vent or relief valve is automatically actuated in dependence upon the connected condition. The vent valve is also only first opened then when there has taken place a satisfactory or proper coupling with the respective tank container.

Abstract: A vapor recovery nozzle, employed in minimizing atmospheric pollution by fuel vapors is described. The nozzle comprises a bellows which is compressed against the fill pipe of a vehicle fuel tank during discharge of fuel therein. The bellows surrounds a nozzle spout to define a vapor return flow path which extends through a nozzle body. The body of the nozzle is compositely formed by a body member and a vapor path cap which compositely define the vapor return flow passage. Flow of fuel is controlled by a control valve which may be opened, or maintained opened, by an operating lever only when a trip mechanism stem is latched in an operative position. A mechanical interlock prevents latching of the trip mechanism stem unless the bellows is compressed in sealing engagement with a fill pipe. When the bellows is so compressed, the trip stem is latched. If the level of fuel in the fill pipe covers the end of the spout, vacuum actuated means unlatch the trip mechanism stem.

Abstract: A fuel dispensing nozzle (10) has a body (12) in which a fuel passage is formed. A spout assembly (18) is attachable to the body in fluid communication therewith for fuel to flow from the body through the spout and into a tank (T). A valve (20) is interposed in the passage and controls fuel flow through the body. A flexible bellows (80) fits over the spout with the outer end (72) thereof sealingly engaging an inlet (I) of the tank to prevent fuel vapors from escaping into the atmosphere. A control apparatus is responsive to movement of the bellows when the spout is inserted into the tank to open the valve, and to removal of the spout from the tank to close the valve. An apparatus (176) is responsive to the vapor pressure within the tank to effect closing of the valve when an overpressure condition occurs thereby to prevent vapor from escaping into the atmosphere.

Abstract: An automatic shut-off duel dispensing nozzle with a flow rate limiting mechanism. The nozzle includes a valve which controls the flow of fuel through a passage leading from the nozzle inlet to the nozzle outlet which is normally connected to a spout. This valve is responsive to a manually operable lever and to a vacuum operated release mechanism which automatically shuts the flow of fuel through the nozzle off when the level of fuel in a tank reaches a preselected level or when the flow of fuel through the nozzle reaches a preselected threshold rate of flow.

Abstract: A lightweight, low maintenance and efficient gasoline dispensing nozzle having a nozzle spout to be inserted into the fill pipe of a motor vehicle to dispense fuel thereto from an underground storage tank while reliably preventing the escape of hydrocarbon vapors prior to and during the pumping of such fuel. The dispensing nozzle includes a resilient sealing bladder assembly which is normally spring biased to a relatively distal position at which to prevent communication between the underground tank and the atmosphere. When the nozzle spout is inserted into the fill pipe, the sealing bladder is urged axially against its spring bias to a relatively proximal position at which to release a latching assembly and thereby permit the pump handle to be depressed radially inward so that gasoline will be dispensed.

Abstract: A delivery nozzle is connected to the outlet end of a fuel supply hose and includes an outlet pipe. A valve is operatively associated with the discharge end of the outlet pipe for opening and closing the latter and an operator is provided for closing the valve responsive to the operator being subject to sub-atmospheric pressure. Further, sub-atmospheric pressure generating structure is operatively associated with the valve operator and generates sub-atmospheric pressure responsive to fuel flow through the outlet pipe and the discharge end of the pipe being submerged within rising fuel in a tank or a tank fill neck into which fuel is being discharged from the outlet pipe.

Abstract: A balanced, two-stage pressure poppet valve for a fuel dispensing nozzle is disclosed, with the valve controlling the dispensing of fuel. When the valve is closed, fluid pressure aids in holding the valve in its closed position and, upon effecting opening of the valve, a first valve member is opened thereby to dump the fuel pressure acting on the valve holding it closed immediately prior to opening of the main valve member so that only the biasing force of a spring (and not the fuel pressure forces) need be overcome to open the valve for fuel dispensing purposes. Further, a flexible flow stabilizer member is positioned downstream from the main valve so as to reduce turbulence in the flow path of the dispensing nozzle and to minimize flow and pressure surges. Also, an improved configuration of a check valve in the nozzle is disclosed.

Abstract: A modular nozzle system for refueling aircraft fuel tanks includes a nozzle valve linkage mechanism which permits the valve body to have a shorter length than previous designs. The nozzle may include a mechanical fuse for releasing the connection between the nozzle body and a fuel tank upon the application of predetermined forces. The nozzle may also include a swivel joint which facilitates positioning the nozzle for connection to a fuel tank. The nozzle may also include a quick disconnect assembly which facilitates connection of the nozzle to various hose end connection. The system also may comprise an assembly fixture for assembling the mechanical fuse and a test fixture for testing the release force of the mechanical fuse.

Abstract: A fluid dispensing nozzle has a retainer secured onto its peripheral surface of the nozzle's discharge spout. This retainer extends radially outward from the spout and is designed to engage a radially inwardly extending lip about a fill tank opening to secure the spout in the fill tank opening when the nozzle is operated in an automatic mode. The retainer is secured onto the spout by an annular groove in the spout and a retainer ring fitted in the groove. The retainer is abutted against the retainer ring and means are provided to prevent axial movement of the retainer relative to the spout once the retainer is so abutted.

Abstract: Liquid flow through an automatic shut-off nozzle is automatically stopped if the fill pipe opening of the tank being filled is not sealed so that vapor return means can carry vapor from a tank being filled to vapor recovery equipment. If the sealing means is not effective when the spout is disposed in a fill pipe opening, a valve, which controls the liquid flow through the body of the nozzle, is automatically shut off.

Abstract: A nozzle having a valve housing and an elongated tube extending therefrom. The nozzle is provided with at least a slot near its open end. A latch is mounted within the nozzle which is movable between a first position, extending outwardly of the slot and a second position inwardly within the nozzle. The latch may be spring-biased or normally controlled to extend outwardly, so that once inserted within the vehicle, the gas tank will lockingly engage under its lip. The latch is provided with structure operable from the exterior of the nozzle which can selectively retract the latch and release the nozzle from the gas tank.

Abstract: A valve means for a fuel dispensing nozzle located in the nozzle discharge spout at the outlet end thereof for sealing the outlet end to prevent the flow of fuel and fuel vapors out of the discharge spout when the nozzle vapor-seal valve is closed. The valve means is responsive to the operation of the vapor-seal valve so that when the vapor-seal valve is closed when the nozzle is not in use, the valve means is closed and so that when the vapor-seal valve is open when the discharge spout is operatively inserted into a fill pipe of a fuel tank, the valve means is open. To this purpose, means are provided to establish communication between the valve means and the flow passage upstream of the nozzle flow control valve and between the valve means and the flow passage in the discharge spout. In one embodiment, the valve means located in the discharge spout at the outlet end thereof is a pinch valve, and in another embodiment, the valve means is a wafer valve.

Abstract: A system of nozzles and seals provides a means to return gasoline vapors from a gasoline tank to a gasoline storage tank.

Abstract: A vapor recovery liquid dispensing nozzle having a primary vent passage, a portion of which extends outwardly through the wall of the liquid discharge tube and a normally closed vent valve in the primary vent passage. The normally closed vent valve being located on the filling tube and having a vent valve member movable between a closed position closing the primary vent passage and an open position in which the primary vent passage is open. The shroud which surrounds the liquid discharge tube engages the vent valve member to move the vent valve member between the open and closed positions in response to movement of the shroud between its extended position and its retracted position such that the primary vent passage is closed to prevent the flow of liquid through the filling tube when the shroud is extended and is open to permit the flow of liquid through the filling tube when the shroud is retracted.

Abstract: A gasoline dispensing nozzle having a system for receiving vapors displaced from a motor vehicle gasoline tank being filled, and an interlock system for both preventing the dispensing of gasoline and closing the vapor receiving system until the discharge spout is properly inserted into the motor vehicle fillpipe. The interlock system includes a first valve mounted in the vapor receiving system outside the discharge spout. This first valve is opened when the nozzle is properly inserted into the fillpipe, and is interconnected with the automatic shut-off system of the nozzle so that dispensing of gasoline is permitted only when the nozzle is properly inserted into the fillpipe. The interlock system also includes a second valve which closes the vapor receiving system, thereby preventing vapors from escaping, until the nozzle is properly inserted in the fillpipe.

Abstract: An automatic dispensing nozzle of the type incorporating a vapor recovery system wherein the sealing seat for preventing the escape of recovered vapors from the system when the nozzle is not in use is located at the position along the length of the discharge tube which is not located within the filling tube of a fluid storage tank in use. The sealing seat for the vapor recovery shroud is located rearwardly from the outer end of the discharge tube and seal closure means is disposed within the shroud and spaced a substantial distance rearwardly from the outer end of the shroud to sealingly engage the sealing seat when the shroud is in its extended position. A mechanism is also provided for preventing the operation of the dispenser nozzle until the vapor recovery system of the nozzle is in communication with the interior of the tank which is to be filled by the nozzle.

Abstract: An interlock system for a fuel dispensing nozzle which prevents its operation until the nozzle is properly inserted into the fillpipe of a vehicle. The interlock system includes an actuation system which responds to the nozzle resting on the fillpipe opening at a predetermined point along the discharge spout of the nozzle and a valve located at the outlet of the vent tube from the automatic shut-off system. The interlock system is biased in such a manner that the valve remains closed at all times unless the nozzle is resting in the fillpipe in the proper manner. In this manner the valve causes the automatic shut-off system to disable the nozzle when it is not properly inserted in the fillpipe and permits the automatic shut-off system to act in its normal fashion when properly inserted, so that the nozzle is shut off when the liquid level in the fillpipe reaches the end of the discharge spout.

Abstract: An interlock system for use on a conventional gasoline dispensing nozzle with an automatic shut-off system is disclosed. The interlock system includes a valve mounted in the discharge spout and connected to the vent tube so that when the valve is in its open position, the vent tube is open to the inside of the discharge spout. The valve actuation system is designed so that when the nozzle is not properly inserted into the vehicle fillpipe, the valve obtains an open position so that in the event dispensing of gasoline is attempted, the vacuum created in the vent tube by the venturi in the automatic shut-off system causes gasoline which flows down the discharge spout to be drawn into the vent tube, thereby causing the automatic shut-off system to disable the nozzle. The valve actuation system is also designed to act in response to the weight of the nozzle resting on the fillpipe and to provide the latching capability for the nozzle.

Abstract: A fuel dispensing nozzle has a diaphragm responsive to vacuum for shutting off the flow of fuel through the nozzle, the diaphragm chamber having a vent to atmosphere through a tube extending to the mouth of the nozzle spout and closeable by fuel in the tank being filled to cause vacuum to actuate the diaphragm and shut off the fuel flow through the nozzle, a valve in the vent tube, a piston for closing the vent tube valve in response to vapor pressure in the tank being filled, a vapor return conduit providing vapor communication between the interior of the tank being filled and the fuel source, the vent tube valve piston being exposed to vapor pressure in the vapor return conduit, whereby to shut off the flow of fuel through the nozzle when predetermined vapor pressure occurs in the tank being filled, and additional means holding the vent tube valve closed and closing the vapor return conduit to prevent vapor leakage from the fuel source except when the spout is inserted in the filler inlet of a tank, and ope

Abstract: A dispensing nozzle assembly having a system for receiving the vapors displaced from a motor vehicle gasoline tank when it is being filled, an interlock system for preventing the dispensing of gasoline until the vapor receiving bellows is in contact with the fillpipe of the vehicle gasoline tank, and an attitude control valve system to prevent vapors from the underground storage tanks from being displaced back into the atmosphere through the vapor receiving system. The interlock system includes a valve connected in the vent line running from the end of the discharge spout to the automatic shut-off system in the nozzle housing, said valve being interconnected with the vapor receiving system so that it is closed when the vapor receiving system is not in contact with a fillpipe, causing the automatic shut-off system to prevent dispensing of gasoline.

Abstract: A dispensing nozzle assembly having a system for receiving the vapors displaced from a motor vehicle gasoline tank when it is being filled and an interlock system located in conjunction with the latching collar on the discharge spout of the nozzle, for preventing the dispensing of gasoline until the discharge spout is inserted into the vehicle fillpipe. The interlock system includes a valve mounted in the discharge spout in such a manner that it is actuated by the weight of the nozzle resting upon the fillpipe inlet. The valve is interconnected with the automatic shut-off system of the nozzle so that when the valve is in its open position, signifying that the nozzle is properly inserted in the fillpipe, dispensing of gasoline is permitted.

Abstract: Apparatus for supplying a liquid product to a pipe connected to the bottom of a vessel from a flexible conduit connected to a distribution system comprising a tank valve connected to the pipe and a coupling connected to the flexible conduit and adapted for connection to the tank valve. The tank valve includes a hollow body one part of which has a large aperture and a coupling mechanism for attachment with the coupling; a flap valve is disposed in the body for closing the aperture and the flap valve is connected via a linkage to an external operating lever; the coupling has a main casing with a connecting nose for lockable connection with the coupling mechanism of the body of the tank valve. A closure member is disposed in the casing for controlling flow of liquid product from the flexible conduit to the tank valve and a hydraulic ram acts on the closure member along with a cartridge having three springs of staggered force to provide the closure member with three stable positions of increasing opening.

Abstract: In a dispenser nozzle having, a main body portion, a filling tube projecting from one end of said main body portion, and a liquid flow passage extending through said main body and said filling tube, the filling tube being adapted to be located within the open end of a neck of a fuel storage tank of a vehicle or the like, a control valve mechanism for controlling the flow of liquid through said liquid flow passage, said mechanism including a valve operating mechanism and latching means for releasably engaging said valve operating mechanism to render said valve operating mechanism operative when engaged by said latching mechanism and inoperative when released by said latching mechanism, the improvement of sensor means mounted on said nozzle and disposed adjacent said filling tube, said sensor means communicating with said latch means to release said latch means with respect to said valve operating mechanism to render said valve operating mechanism inoperative when said filling tube is now disposed in a predeter

Abstract: A dispensing nozzle assembly having a system for receiving the vapors displaced from a motor vehicle gasoline tank when it is being filled and an interlock system located in conjunction with the latching collar on the discharge spout of the nozzle, for preventing the dispensing of gasoline until the discharge spout is inserted into the vehicle fillpipe. The interlock system includes a valve mounted in the discharge spout in such a manner that it is actuated by the weight of the nozzle resting upon the fillpipe inlet. The valve is interconnected with the automatic shut-off system of the nozzle so that when the valve is in its open position, signifying that the nozzle is properly inserted in the fillpipe, dispensing of gasoline is permitted.