Abstract: A fluid dispensing nozzle including a nozzle body having a fluid path and a suction path therein. The nozzle includes a suction generator configured to generate a suction force in the suction path when fluid to be dispensed flows through the fluid path. The nozzle further includes a shut-off device having a suction chamber fluidly coupled to the suction path. The shut-off device is configured such that when the suction path is blocked during fluid dispensing the shut-off device prevents the nozzle from dispensing fluid through the fluid path. The suction chamber includes a lip extending around a perimeter thereof. An opening is formed in or extends through the lip, the opening providing fluid communication between the suction chamber and the suction path to enable liquid to flow from the suction chamber to the suction path.

Abstract: A nozzle gun includes a nozzle main body, an operating member attached to the nozzle main body to be movable toward and away from the nozzle main body, and a stopper attached to the nozzle main body to be pivotable between a locked position and a non-lock position and having a locking portion and receptacles, wherein when the operating member is moved toward the nozzle main body and the stopper is placed in the locked position, the locking portion engages with the operating member to prevent the operating member from moving away from the nozzle main body, when the stopper is in the non-lock position, the locking portion does not engage with the operating member, and when the operating member is moved toward the nozzle main body with the stopper in the non-lock position, the operating member presses the receptacles to cause the stopper to pivot into the locked position.

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: A nozzle assembly operable to deliver fluid to a tank to be filled and to sense a level of fluid in the tank, the assembly having a fluid outlet and a sensor portion, the sensor portion comprising a pressure sensor provided in fluid communication with a sensor conduit, the sensor conduit having a sensor conduit aperture provided therein, the assembly being operable in use whereby when a level of liquid in the tank being filled rises above a level of the sensor conduit aperture, the sensor conduit aperture is closed by the liquid and a pressure of gas trapped in the sensor conduit increases thereby indicating a “tank full” condition, the assembly being arranged to detect the increase in pressure of gas and to generate a pressure increase signal indicative of the in crease in pressure when the increase in pressure is detected.

Abstract: A non-overflow liquid delivery system comprises a pumping apparatus having a liquid delivery pumping portion and a liquid recovery pumping portion fluidically isolated one from the other. A nozzle has a liquid delivery conduit and a liquid recovery conduit. A liquid delivery hose connects the liquid delivery pumping portion of the pumping apparatus in fluid communication with the liquid delivery conduit. A liquid recovery hose connects the liquid recovery pumping portion of the pumping apparatus in fluid communication with the liquid recovery conduit. A valve has a first movable valve portion for opening and closing the liquid delivery conduit. A manually operable valve control mechanism is connected to the valve for controlling the first movable valve portion, and has a liquid sensor responsive to a threshold condition of liquid in the liquid recovery conduit to thereby cause the first movable valve portion to close the liquid delivery conduit.

Abstract: A beverage dispenser has a faucet with a spout, a fitting for connection to a beverage supply, and a lever operated valve. A servo motor, coupled to the lever, operates the faucet and proportionally controls the flow of the beverage. That proportional flow control manages the amount of beverage foaming. A flow sensor has a magnetic turbine within the faucet and a Hall effect element that magnetically senses turbine motion and produces a signal indicating an amount of beverage flow. A keypad enables service personnel to designate various portions of the beverage to automatically fill serving containers of different sizes. A control circuit responds to activation of the keypad and to the flow sensor by operating the servo motor to dispense the related quantity of the beverage.

Abstract: A hose breakaway fitting for a fuel hose and fuel dispenser that comprises of an inner ball-shaped valve section and an outer socket-shaped breakaway section. The valve section is connected to the dispenser's fuel outlet and the breakaway section is connected to one end of the fuel hose. In the event that a vehicle drives away with the fuel hose nozzle still lodged inside its fuel tank, the breakaway section swivels and separates from the valve section that automatically shuts off the flow of fuel to prevent a hazardous situation.

Abstract: A fuel dispensing nozzle incorporating a double poppet valve assembly enables a user to more controllably and accurately dispense fuel through the nozzle. The double poppet valve assembly has a larger outer poppet and a smaller inner poppet, such that the user can open both poppets together or merely open the smaller inner poppet alone. The outer poppet enables a high rate of fuel to flow through the nozzle when the outer poppet is opened. The inner poppet, located within the body of the outer poppet, allows a reduced rate of fuel to flow through the nozzle when the inner poppet is opened but the outer poppet is closed, enabling the user to dispense more precise amounts of fuel.

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 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: Fluid dispensing nozzles which include valve mechanisms that allow fluid flow around substantially the entire periphery of valve elements. The valve elements are located in a substantially linear central flow path formed in the bodies of the dispensing nozzles. Dispensing spouts are coupled to the nozzle bodies so that the axes of the dispensing spouts intersect the angle of the axes of the central flow paths at obtuse angles, and preferably at angles which reduce flow resistance. The dispensing nozzles of the present invention include push rod bores and bores for receiving the dispensing spouts which bores are parallel so that they can be machined simultaneously, thereby reducing machining steps and manufacturing costs.

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 fuel nozzle with both a Venturi shut-off mechanism and an electronic pressure switch shut-off mechanism. The increased reliability can be obtained at minimal increased cost if the two pressure-activated mechanisms are combined in a single housing so that each sensing port in effect becomes the reference pressure for the other.

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 filler system to add water to a specified level in a cell of a storage battery mounted in a relatively inaccessible location includes a container for fill water connected by an elongated, flexible supply line and an elongated flexible air vent line to a hand-held fill valve assembly. The fill valve assembly includes a normally closed, manually opening water valve connected to the supply line and a normally open buoyant air vent valve that closes to prevent the flow of air to the interior of the container when the liquid level in the cell rises to its proper level.

Abstract: A fuel dispensing unit shutoff switch is provided, the switch comprising: a fuel supply nozzle, having a fuel supply outlet, capable of being inserted into a fuel tank inlet conduit of a vehicle; a plurality of vacuum conduits, each vacuum conduit providing communication between a volume in the vicinity of the fuel supply nozzle outlet, and sources of essentially equal negative pressures; a differential pressure sensor having a plurality of inputs with each input being a point along a different vacuum conduit, and an output signal that is activated when the pressures of the vacuum conduits at the differential pressure sensor inputs differ by more than a threshold amount of differential pressures; and a means effective to stop fuel flow when the output signal is activated. The sources of equal negative pressures are preferably one or more venturies in the fuel supply nozzle, and the threshold amount of differential pressure is preferably between about 0.1 and about 3 inches water of differential pressure.

Abstract: A fuel dispensing nozzle easily and readily convertible between two modes which meet the regulations and operational requirements of the United States and European countries, the nozzle including a body member having a fuel passageway therethrough, a main valve in the fuel passageway to control the flow of fuel through the passageway, the main valve being removably mounted in the fuel passageway and reversible when the nozzle is to be converted into a different mode, and a valve actuating mechanism for opening the main valve in one direction when the main valve is in one attitude and in the opposite direction when the valve is in its reversed attitude.

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: A fuel dispensing nozzle has a body in which a fuel passage is formed, a spout attached to the body, a poppet valve contained within the nozzle body, for controlling the flow of fuel through the nozzle; a hand operated lever actuates the poppet valve, and the nozzle includes an automatic shut-off mechanism to provide shut-off of the nozzle, when the fuel tank is filled. The automatic shut-off mechanism includes a plunger, a latch pin disposed for vertical movement therein, with the latch pin being embraced by a diaphragm support, of the automatic shut-off mechanism, to provide a lost motion gap which allows the diaphragm to slightly shift, during initiation and dispensing of fuel, and prevent premature shut-off; the latch pin includes an annular upwardly extending collar, that is capable of connecting with a surrounding shoulder formed of the diaphragm support.

Abstract: A control circuit for a beverage dispenser provides accurate uniform automatic cup filling. The circuit includes an initial latch feature which prevents premature shut-off of the dispenser valve and a mechanism for overcoming false cup-fill conditions to assure uniform filling.

Abstract: A fluid dispensing nozzle including electrical and electro-mechanical flow controls and an electrical overflow protection mechanism.

Abstract: A fluid dispensing nozzle for gasoline or the like includes a cast body having an inlet, an outlet, a valve seat between the inlet and the outlet, and a hand guard. Mounted in and on the cast body are 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 cast lever engaging the valve stem for manually urging the poppet valve away from its seat, and a high-level shut-off means for disabling the lever. The high level shut-off means includes a plunger to which the actuating lever for the nozzle is pivoted, a latch pin, latching balls, and a cylindrical sleeve which acts as a guide for the plunger and as a stop for the latching balls. A hold-open clip is pivoted to the integral hand guard and engages latching teeth on the lever. Release of the high-level shut-off causes a heel portion of the lever to force the clip out of engagement with the teeth.

Abstract: A fluid dispensing nozzle construction, a diaphragm subassembly therefor and methods of making the same are provided, the diaphragm subassembly comprising a pin, a diaphragm support carried by the pin, a diaphragm, and a diaphragm retainer securing the diaphragm to the pin with the diaphragm being disposed and sandwiched between the diaphragm retainer and the diaphragm suppport, the diaphragm subassembly having structure requiring the descrution of at least one part of the diaphragm subassembly when the diaphragm subassembly has the parts thereof disassembled.

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: The liquid-dispensing pistol-grip nozzle comprises a filling hose liquid-dispensing device equipped with a delivery pump which can be turned on and shut off, a valve housing with a spigot, a filling hose connector and a connected fuel duct, an operating mechanism with a pistol-grip handle and if necessary a flow rate setting mechanism for the pistol-grip handle, an automatic shut off device and a safety device. The automatic shut off device which operates a locking mechanism has a pressure equalizing chamber, a chamber-separating control membrane and a vacuum chamber with a filling state sensing duct with a vacuum duct opening near the delivery valve seat in the valve housing. The control membrane is connected with flexible free play to a hollow piston shaft of a safety piston guided in the valve housing which is movable between a locked in position and a locked out position. The safety piston is a differential piston with a small effective piston surface and a large effective piston surface.

Abstract: An automatic shut-off device for a fuel dispenser giving a set quantity of fuel into a tank or the like. The device can release a handle member by means of the returning force of a spring so as to shut off a valve in the fuel pipe.

Abstract: A lightweight acid-resistant plastic dispenser having a handle housing enclosing a valve and valve-operating mechanism and remote therefrom on a rigid tubular extension a plastic water nozzle and a flexible hose connected to a water source.The nozzle of the dispenser has two ducts, one for water and the other for aspirated air to produce a suction when the level of the liquid in the battery cell being filled reaches the lower end of the nozzle. The aspirated or suction air operates a diaphragm to break a toggle in the valve-operating mechanism, automatically shutting the water valve in the handle housing.The valve control mechanism in the handle comprises a double toggle composed of three alignable links which when aligned operate against the normally spring-pressed water valve to hold it open.

Abstract: A nozzle for filling containers with liquid, with automatic closing of the nozzle, when they are full, by means of a flow valve which is controllable by a delivery lever via a detachable connection. The connection is acted upon by a switching device which, according to the pressure in a pressure channel terminating at the outlet orifice of the nozzle, causes the valve to close.

Abstract: An automatic shut-off nozzle has a first diaphragm responsive to the liquid in the tank being filled reaching a predetermined level to automatically stop flow through the nozzle. Flow also is automatically stopped when a second diaphragm responds to inactivation of a pump supplying the liquid to the nozzle. When a venturi poppet valve is located downstream from a main poppet valve in the nozzle, the venturi poppet valve has a bleed passage extending therethrough to enable the pressure upstream thereof and acting on the second diaphragm to be reduced to zero the pump is inactivated.

Abstract: A modular dispensing nozzle particularly adapted for dispensing gasoline and constructed for easy repair and low pressure drop is provided with a novel automatic shut-off mechanism which terminates fluid flow through the nozzle in response to predetermined conditions.

Abstract: A multi-function safety service valve operable both manually and automatically through a toggle fuse-linked joint as located to interconnect the piping of an LP Gas bulk storage tank and a flexible hose connected to fill an LP Gas transport tank on a truck.

Abstract: A control system for a gasoline dispensing nozzle which includes a locking system for placing the nozzle in an inoperative mode once the nozzle automatically shuts off. Resetting of the locking system is then required before operation of the nozzle can again be commenced. The locking system includes a biased member which maintains the automatic shut-off system in its disabling mode once it disables the nozzle. This locking system is designed primarily for use on a dispensing nozzle with a vapor receiving system and is used to discourage an operator of the nozzle from overfilling a gasoline tank, which results in increasing the risk of spilling gasoline or forcing gasoline back through the vapor return line. An alternative embodiment using magnetic locking means is also provided.

Abstract: A filling device for delivering liquid to a container, such as a storage battery, with valve actuating means for automatically cutting off liquid flow when the liquid level reaches the level of the discharge nozzle and which is operated by having a vacuum formed within the discharge nozzle wherein the liquid inlet passage to the valve is restricted to substantially reduce the rate of liquid flow from a liquid supply line into the valve chamber and the discharge nozzle is provided with a narrow liquid outlet passage formed around the end of a vacuum line connected with said valve actuating means with the size of the inlet and outlet passages being coordinated so that liquid flow is cut off only when the liquid in the container being filled reaches the level of the lower end of said discharge nozzle.