Abstract: A nozzle for dispensing fluid including a nozzle body having a fluid path therein through which fluid is configured to flow in a downstream direction. The nozzle further includes a valve having a valve body positioned in the fluid path and movable between a closed position wherein the valve body sealingly engages a valve seat to generally block fluid from flowing therethrough, and an open position wherein the valve body is spaced away from the valve seat to generally allow fluid to flow therethrough. At least part of a surface of the valve body positioned upstream of the valve seat is configured to be fluidly isolated from a pressure of fluid in the fluid path upstream of the valve seat when the valve is in the closed position.

Abstract: The invention concerns a delivery valve for the delivery of a fluid into a tank of a motor vehicle. According to the invention, the following is provided: a) the delivery valve has a first settable maximum volume flow, b) the delivery valve has a second settable maximum volume flow which is higher than the first settable maximum volume flow, c) a control device (24, 25), by means of which optionally the first or the second maximum volume flow can be set, d) a sensor device (20, 21), which is configured for interaction with a signal emitter (29) assigned to the tank of the motor vehicle and which activates the control device.

Abstract: A fuel tank for vehicles has a filler tube and a filling level limiting device, with the filler tube comprising, in the interior of the fuel tank, a closing device which interacts with an actuating device which is composed of: a) a frame which is fastened in the interior of the fuel tank and which has a force store which actuates the closing device; b) a locking arrangement which holds the force store in the stressed state; c) a release mechanism which is operatively connected to a float; and d) a stressing mechanism for stressing the force store. The actuating device ensures that a flap closes precisely when a nominal filling level is reached, and does not open again even under intense fluctuation of the liquid level.

Abstract: A vapor-recovery-activated auto-shutoff nozzle comprises a manually operable trigger that permits selective operation of a normally closed valve between a valve-closed configuration and a valve-open configuration. Linkage arms connect the trigger and the valve, and are re-configurable between an enabled configuration and a disabled configuration. In the enabled configuration, the trigger and the valve are operatively connected such that the rest position of the trigger corresponds to the valve being closed, and the in-use position of the manually operable trigger corresponds to the valve being open. In the disabled configuration, the manually operable trigger is precluded from controlling the valve.

Abstract: An electronically operated fuel nozzle includes a solenoid valve for dispensing fuel, an electronic board for operating the solenoid valve, electric accumulator means for electrically powering the solenoid valve and the electronic board. The solenoid valve includes an inlet pipe and an outlet pipe connected to the fuel-dispensing pipe to dispense a full flow of fuel for refueling, and a secondary channel integrated in the solenoid valve for dispensing a lower quantity of fuel for topping up, the inlet pipe and the outlet pipe are opened by an electromagnetic operating device. The secondary channel is opened by another electromagnetic operating device.

Abstract: The subject matter of the invention is a fuel pump nozzle, with an inlet (2), a discharge pipe (3), a main valve for controlling the stream of liquid between the inlet (2) and discharge pipe (3), a switching lever (4) for actuating the main valve, a first automatic safety shut-off which moves the main valve into the closed position if the liquid level in a tank to be filled reaches a filling level sensor arranged in the region of the discharge pipe (3), a second automatic safety shut-off which moves the main valve into the closed position if the liquid pressure at the inlet (2) drops below a minimum value, and a mechanism (13) for prestressing the main valve into the closed position, said mechanism bringing about a variable opening cross section of the main valve depending on the liquid pressure at the inlet (2).

Abstract: A liquid supply nozzle having automatic shut-down and alarming function will stop feeding a liquid when a diaphragm is damaged with alarming the damage. The liquid supply nozzle can contain a press member under the diaphragm which pushes up the diaphragm and maintains an entire stoppage function to work even when the diaphragm is broken. The damage of the diaphragm can be visually inspected through a cap which is made of a substantially transparent material and visually or sonically perceived through an additionally provided alarm unit.

Abstract: A liquid supply nozzle having automatic shut-down and alarming function will stop feeding a liquid when a diaphragm is damaged with alarming the damage. The liquid supply nozzle can contain a press member under the diaphragm which pushes up the diaphragm and maintains an entire stoppage function to work even when the diaphragm is broken. The damage of the diaphragm can be visually inspected through a cap which is made of a substantially transparent material and visually or sonically perceived through an additionally provided alarm unit.

Abstract: A safety tank apparatus is provided for installation to receive and store a liquid hydrocarbon or hydrocarbons, or the like, and from which the liquid may be withdrawn. It comprises tank structure including an inner metallic tank; an outer metallic tank protectively receiving the inner tank with accessible interior space laterally of the inner tank; a barrier wall between that interior space and the inner wall; an opening in the outer tank sidewall adjacent that interior space; and a closure closing the opening, the closure movable to expose the interior space to access from the exterior; and tank liquid flow control structure accessible through the side wall opening, for controlling filling of the liquid into the inner tank from the exterior of the safety apparatus, and for controlling liquid removal from the inner tank.

Abstract: A vapor recovery valve that includes two mechanisms for opening the valve is disclosed. The first mechanism opens the valve when fuel is being dispensed by a fuel delivery system. The second mechanism selectively opens the valve independent of whether the fuel delivery system is dispensing fuel. A method for dry testing a vapor recovery system is also disclosed. The method involves disabling the fuel dispensing capability of the fuel delivery system, and then operating the vapor recovery system at a rate that corresponds to a predetermined imaginary fuel dispensing rate. Next, the vapor recovery path is opened, and its operation is measured and determined if it is sufficient for the imaginary fuel delivery rate.

Abstract: A fuel nozzle has a modular construction wherein valve, venturi and spout modules are mounted in a bore formed in a nozzle body. The main fuel valve is controlled, independently of fuel pressurization, in response to a mechanical signal input, acting through a servo valve. The mechanical signal input is provide by a finger displaced trigger, acting through a pivotal lever arm and latching means that form part of the automatic shut off means for preventing overfill of a fuel tank. The venturi module has a venturi passage for generating a vacuum employed in the automatic shut off mechanism. The venturi module includes a bypass passage that enables sufficient vacuum force to be generated at both high and low flow rates. The spout module comprise an extruded spout (including a venturi vent passage) and a pair of mechanical adapter shells that are mechanical locked onto the spout and mechanically locked to the nozzle body, to secure the several modules in assembled relation.

Abstract: An electronic fuel dispensing nozzle assembly adapted to reduce the undesirable effects of a pure mechanical system by providing an electromechanical fuel dispensing trigger assembly. An electromechanical fuel dispensing trigger assembly includes a valve assembly selectively displaceable between an open and a closed position and a trigger assembly selectively displaceable between a first position and a second position. Electronic elements are provided to selectively enable the trigger assembly to selectively open the valve when displaced from the first position to the second position. Furthermore, the electronic elements can also inhibit the trigger assembly, such that motion of the trigger assembly from the first position to the second position does not cause the valve assembly to be displaced from the closed position to the open position.

Abstract: The valve (31) comprises at least two lateral openings (34, 36) which can be shut off by a plug (40) provided with an axial orifice (48) for the passage of gas and sliding axially in the casing (32) between a position in which the openings, (34, 36) are shut off under the influence of a spring (44) and an open position counter to the action of the spring (44) under the influence of the pressure of the filling gas, and a level valve (52) activated by a float (62) at the bottom of the casing (32).The plug (40) comprises an inner cavity (70), the bottom of which has a cross-section in the shape of an open "V". In this cavity (70) is a ball (72) which prevents the cylinder from being filled when the latter is inclined sufficiently for the ball not to be situated at the bottom of the cavity (70).

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: In a fuel inlet device for a fuel tank, a flap valve is provided at an end of a fuel filler tube opening into the fuel tank, and a float which rises with a rise in a surface level of the fuel in the tank closes this flap valve when the fuel surface level has reached a prescribed level. Thus, when the surface level of the fuel in the fuel tank has reached a prescribed level, the flap valve linked with the float is closed, and prevents any more fuel from being filled into the fuel tank because the filling nozzle detects this rise in the surface level of the fuel in the filler tube, and stops filling any more fuel into the tank. Therefore, it is possible to connect the breather tube in the fuel tank directly with a canister device without the intervention of a relief valve, and the internal pressure of the fuel tank can be maintained substantially no higher than the atmospheric pressure. Thus, the release of fuel vapor from the filler cap can be avoided.

Abstract: A non-aerating fluid dispensing nozzle for dispensing fluid into a receiving tank has a vapor control and containment mechanism for vapors formed in the receiving tank. The mechanism has a chamber disposed within the housing of the nozzle and a gas passage that has a first end connected to the chamber and a second end connected to an intake aperture disposed near the distal end of the discharge nozzle. A pump is disposed in fluid flow communication with the chamber for pumping gases from the fluid receiving tank into the chamber through the gas passage during fluid flow through the nozzle.

Abstract: A vapor recovery nozzle having a turbine located in the nozzle portion which is driven by the flow of fuel. The turbine rotates an impeller also located in the nozzle which draws in the vapor during pump. The nozzle also has a hydraulic system which automatically shuts off the nozzle when fluid is displaced in an accumulator cylinder.

Abstract: A fuel dispensing nozzle includes a nozzle body and a projecting spout and surrounding bellows which define a fuel supply passage and a vapor return passage connected to corresponding concentric passages within flexible coaxial hoses. The body supports a manually actuated control valve within the fuel passage, and a pressure responsive check valve is also located within the fuel passage adjacent the spout. The check valve includes a valve member normally biased against a tapered valve seat, and a first venturi suction passage extends from the valve seat to control a pressure responsive diaphragm mechanism for automatically closing the manually actuated valve when fuel blocks a suction vent line within the of the spout. A second venturi suction passage extends from the valve seat through the nozzle body and connects with a fuel evacuation passage within a flexible tube which extends downwardly into the vapor passage within the coaxial hoses.

Abstract: Multi-variable regulator having at least four mechanical ports having a linear transfer function between at least two of the ports. The multi-variable regulator has a body which is movable in three dimensions. Joint structure connect the body to the ports at three different points on the body. A pneumatic converter controls the position of the body.

Abstract: A fuel dispensing nozzle (10) has a body (12) including a fuel passage for fuel to flow from a source thereof through the body. A spout (18) is attached to the body in fluid communication therewith for fuel to flow into the spout from the passage. The distal end of the spout forms a mouth (19) insertable into the tank. A vapor return path is provided for capturing fuel vapors and returning them to the source, so to substantially reduce or eliminate emissions. A vacuum is produced in a variable venturi portion (42) of the nozzle and is applied to the return path to extract any fuel collecting therein. This vacuum is in addition to another vacuum produced at the venturi and used to assist in automatically shutting-off fuel flow when the tank is full. This device is a power generating source that is not limited to only fuel extraction and nozzle shut off.

Abstract: A pre-pay fuel system having a fuel nozzle with automatic cutoff provisions when a full tank exists or unwanted tank pressure conditions are detected is also provided with a low fuel pressure controlled cutoff. The fuel pressure cutoff allows rapid response to permit fuel flow when high pressure exists in the nozzle and provides a nozzle flow cutoff after a predetermined time delay when low fuel pressure exists in the nozzle.

Abstract: A fuel dispensing nozzle includes a nozzle body and a projecting spout and surrounding bellows which define a fuel supply passage and a vapor return passage connected to corresponding concentric passages within flexible coaxial hoses. The body supports a manually actuated control valve within the fuel passage, and a pressure responsive check valve is also located within the fuel passage adjacent the spout. The check valve includes a valve member normally biased against a tapered valve seat, and a first venturi suction passage extends from the valve seat to control a pressure responsive diaphragm mechanism for automatically closing the manually actuated valve when fuel blocks a suction vent line within the of the spout. A second venturi suction passage extends from the valve seat through the nozzle body and connects with a fuel evacuation passage within a flexible tube which extends downwardly into the vapor passage within the coaxial hoses.

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 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 fuel dispensing nozzle includes a nozzle body and a projecting spout and surrounding bellows which define a fuel supply passage and a vapor return passage connected to corresponding concentric passages within flexible coaxial hoses. The body supports a manually actuated control valve within the fuel passage, and a pressure responsive check valve is also located within the fuel passage adjacent the spout. The check valve includes a valve member normally biased against a tapered valve seat, and a first venturi suction passage extends from the valve seat to control a pressure responsive diaphragm mechanism for automatically closing the manually actuated valve when fuel blocks a suction vent line within the of the spout. A second venturi suction passage extends from the valve seat through the nozzle body and connects with a fuel evacuation passage within a flexible tube which extends downwardly into the vapor passage within the coaxial hoses.

Abstract: A safety tank apparatus is provided for installation to receive and store a liquid hydrocarbon or hydrocarbons, or the like, and from which the liquid may be withdrawn. It comprises tank structure including an inner metallic tank; an outer metallic tank protectively receiving the inner tank with upper interior space above the inner tank; a cover extending over the inner and outer tanks above that space; an opening in the outer tank sidewall adjacent that upper interior space; and a closure closing the opening, the closure movable to expose the upper interior to access from the exterior; and tank liquid flow control structure located below the top wall, and accessible through the side wall opening, for controlling filling of the liquid into the inner tank from the exterior of the safety apparatus, and for controlling liquid removal from the inner tank.

Abstract: A fuel dispensing nozzle for gasoline fuel pumping stations and the like has an inlet through which the fuel is supplied within a range of inlet pressures, an outlet from which fuel is discharged and a flow passage having valving for selectively opening communication between the inlet and the outlet in response to the pressure differential across the valving. The valving includes a housing within which a movable valve member is mounted, the valve member being actuated to open or partially close communication from an inlet of the housing to an outlet of the housing in response to the pressure differential across the valve member. As the pressure differential decreases above the pressure differential corresponding to the predetermined maximum rate, the valve member begins to close communication to prevent the flow from exceeding the predetermined maximum amount, and as the pressure differential increases communication is decreased so that the maximum predetermined flow rate is not exceeded.

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 flow rate limiting device (40) for a fuel dispensing nozzle (10) having an inlet (12) through which fuel is supplied to said nozzle (10) from a supply hose (14) and an outlet (20) from which fuel is discharged, as into a tank of a vehicle. The device (40) includes a flow restrictor (42) which is mounted in the fuel dispensing nozzle in its internal flow passage (16) the flow restricter (42) is automatically operated to reduce the flow rate, when the flow rate of fuel through said nozzle (10) reaches a preselected threshold rate such as the rate established by governmental regulations. After the flow rate of the fuel in the internal flow passage (16) is reduced below the preselected threshold rate, the flow restriction is attentuated such that the flow in the passage (16) can increase and approach the threshold rate.

Abstract: An automatic shut-off fuel dispensing nozzle (10) with a flow rate limiting mechanism (90). The nozzle (10) includes a valve (24) which controls the flow of fuel through a passage (16) leading from the nozzle inlet (12) to the nozzle outlet (20) which is normally connected to a spout. This valve (24) is responsive to a manually operable lever and to a vacuum operated release mechanism (26) 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 liquid dispensing nozzle (10) with a pump pressure responsive automatic shut-off mechanism. The nozzle (10) comprises a body (12) with an internal passageway (13) therethrough defining an inlet port (14) for being connected to a dispensing pump and an outlet port (16). A main valve (18) is mounted in the body (12) for selectively opening and closing the passageway (13) to the flow of liquid, and a latch mechanism (29) is provided for selectively closing, and prohibiting the opening of, the main valve (18). The nozzle (10) further comprises automatic shut-off mechanism for releasing the latch mechanism so as to close, and prohibit the opening of, the main valve when supply pressure from the dispensing pump falls below a preselected value. Such automatic shut-off mechanism includes an actuator member ( b 43) operatively associated with the latch mechanism (29) and movably responsive to fluid pressure within the passageway between the inlet port (14) and the outlet port (16) reaching a preselected value.

Abstract: A filling apparatus for filling liquid into a container to either of at least two levels has a liquid pouring gun unit for dispensing a liquid and a sensor thereon for sensing that the distance of a surface of the liquid from the end of the gun unit closest to the liquid is a predetermined distance and producing a signal when this distance is sensed. A liquid supply line is connected to the gun unit and has a valve therein and counter for determining the amount of liquid which is flowing in the liquid supply line. The sensor and the counter are connected to a controller, which in turn is connected to the valve. The controller can be set for actuation at either of at least two levels.

Abstract: An improved liquid dispensing nozzle (10) for dispensing a liquid such as fuel, from a dispensing pump. The improved dispensing nozzle comprises a body (12) defining an internal passageway (13) provided with an inlet port (14) for releasably connecting the nozzle (10) in fluid communication with a dispensing pump and an outlet port (16) for carrying a spout assembly (17) for selectively directing the flow of liquid from the nozzle (10). A main valve (18) is mounted within the body (12) between the inlet port (14) and the outlet port (16) and is provided with an operating lever (32) for selectively opening the main valve (18) to allow liquid to be discharged from the nozzle (10).

Abstract: Flow through a vapor recovery nozzle is stopped when the liquid in a tank being filled reaches a predetermined level to cause a first diaphragm, which forms a wall of a first chamber, to move a latch release mechanism against the force of a single spring. Flow through the nozzle also is stopped when pressure in the tank being filled exceeds a predetermined pressure through movement of a second diaphragm, which is disposed in a plane substantially perpendicular to the plane of the first diaphragm and forms a wall of a second chamber connected by two separate passages to a vapor return passage communicating the tank with vapor recovery equipment, to cause movement of the latch release mechanism in the same direction and against the force of the same spring. The first diaphragm is prevented from moving in response to the pressure in the tank increasing. The exterior of each of the first and second diaphragms is exposed to ambient pressure.

Abstract: A fluid dispensing nozzle for gasoline or the like includes a valve seat, a poppet valve for controlling flow through the valve seat, a spring urging the poppet valve closed, a valve stem extending into the poppet valve, a handle engaging the valve stem for manually urging the poppet valve away from its seat and a high-level shut-off means for disabling the handle. The poppet valve assembly is constructed to lift one side of the poppet when the handle is initially lifted.

Abstract: A liquid dispensing device in the form of a so-called pistol valve for use with a petrol pump comprises a valve housing (1) having an inlet (2) connected to the pump and an outlet (3); a valve (5) for controlling the flow of liquid from the inlet to the outlet; a discharge pipe (4) connected to said outlet; and a manually operable operating mechanism for controlling movement of said valve, which operating mechanism comprises adjustable means (19) which can be moved between an engagement position and a free position.

Abstract: Nozzle for a closed system holding a volatile fuel. The nozzle is adapted to sealably engage the filler pipe of a fuel tank whereby to avoid passage of fumes to the atmosphere during a fuel transfer operation. The nozzle will automatically discontinue fuel flow in response to a malfunction in the closed system, which would otherwise cause recycling of the fuel through the nozzle and back to its source.

Abstract: A guard for fuel dispensing nozzles is formed with a hollow projection surrounding and radially spaced from the nozzle spout for sealing engagement with structure surrounding the filler opening of a gasoline tank to provide for vapor recovery and is formed with a receptacle for a vapor return line communicating with the interior of the hollow projection.