Abstract: Device for supplying pressurized fluid, including a first valve housing an internal fluid circuit, the device including a second valve having an internal circuit and forming a physical entity distinct from the first valve. The first and the second valve including respective coupling members forming a detachable male/female quick-connection system for the second valve on the first valve. The two valves being configured such as to place their internal circuits in communication when the second valve is coupled to the first valve via the quick-connection system.

Abstract: A tap (1) for delivering liquids from a container is described, comprising a supporting body (4) with fitting means (4.8) with the container, and connecting means (4.7) connected to connecting means present on a connector (7); a central pin (3) connected to a central geometry (4.10) of the supporting body (4) and comprising at an end thereof a fastening geometry (3.1) and at an opposite end an abutment geometry (3.3) for opening the connector (7) when it is connected to the tap (1); a membrane-type elastic sealing valve (6) for the automatic closure of the tap (1) and its operating sealing with the main body (4); a control member (5) to open and close the tap (1) transmitting a force to the valve (6) connected to the control member (5).

Abstract: An apparatus, system, and means are disclosed for a modular backpressure sensor configured for use with a fluid delivery nozzle. The modular backpressure sensor may be installed and removed using simple tools and may optionally include an activator handle attachment. The system may optionally include a protective end plug for the fluid delivery nozzle.

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 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 vapor recovery nozzle has a dual passage hose connector, a fluid control body connected to the connector, a fluid turbine body connected to the fluid control body, and a fluid venturi body mounted within the fluid turbine body, a barrier flange and a vapor impeller housing surrounding a fluid and vapor conduit spout and connected to the barrier flange and fluid turbine body. A fluid turbine and a vapor impeller are mounted on opposite sides of the barrier flange on bearings which are supported on an axle extended from the venturi body. Magnetic couplings drive the vapor impeller with the fluid turbine. Fluid vapor is actively withdrawn from the tank and is moved under a positive discharge pressure through the vapor channel and in the nozzle guard, past a check valve in the vapor channel and through the vapor passage in the hose. Fluid is controlled by a poppet valve which is closed in the direction of fluid flow by a spring.

Abstract: A vapor valve for use in conjunction with the fuel dispensing nozzle for capturing vapors returned through the nozzle to a storage area, the nozzle incorporating a body, a spout extending forwardly therefrom, and the nozzle having an operating latch pin and housing for normally providing for opening or shut-off of the nozzle during a dispensing function, a vapor passageway extending through the spout, communicating into the latch pin housing, and extending through the nozzle body for return of vapors back to a storage area, and a latch ring operatively associated with the latch pin and providing for opening or closure to the vapor port of the latch pin housing to furnish its opening while fuel is being dispensed for return of vapors to a storage area, or when the fuel dispensing function is curtailed, providing for an upward shifting of the latch ring within the housing for closure of its associated vapor port and preventing the escape of vapors to the atmosphere.

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 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 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: An improved fuel dispensing nozzle of significantly reduced size and weight has a single diaphragm that provides the vapor regulating function as well as providing the excess pressure and excess vacuum shut-off functions. Improved shut-off function is obtained by ensuring that chamber pressure is the same as that at the spout tip disposed in the vehicle fuel tank fill pipe. The improved fuel dispensing nozzle design also reduces the amount of accidental fuel spillage which may occur when refueling is concluded.

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 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 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: An automatic shut-off nozzle for a vehicle servicing system can be rapidly mated to a receiver fitting on a fuel tank. Both the nozzle and the receiver have valves which are normally closed but which open when the nozzle is mated to the receiver. The nozzle includes a piston which moves so as to displace a spring-biased operculum forming the valve of the receiver; the piston is automatically retracted when the receiver is filled.

Abstract: The present invention relates to an apparatus for filling bags with a material and for sealing them, and it can carry the bags in a direction of a bag thickness. A first feature of the present invention resides in that, in the case that the bags are arranged between a pair of chain conveyors disposed in parallel vertical planes, they are gripped by plural pairs of grippers mounted on a pair of axes extending through each rectangular parallelepiped carrier. Further, a second feature of the present invention is that the apparatus according to the present invention is equipped with nozzles for introducing a compressed gas into the bags and pressure gauges for measuring a pressure within the bags in order to detect whether or not each bag is normally gripped by the grippers. Furthermore, another feature of the present invention is that a return pipe is fixed to a filling device so that the filling material may be returned to a storage tank, without being discharged therethrough, by closing the filling nozzle.

Abstract: A vapor recovery nozzle is disclosed in which the main body of the nozzle has the vapor passage located above the fluid passage, so that the fluid valve is separated from the top of the nozzle by the vapor passage. Thus the valve may only be removed through the bottom of the nozzle by removing the trigger mechanism and removing the vacuum tripping mechanism which is also connected to the trigger mechanism. Removal of the tripping mechanism is also made easily determinable by the use of a soft aluminum seal over the top opening of the trigger mechanism. The tripping mechanism is responsive to displacement of the vapor recovery shroud to prevent dispensing fuel unless the nozzle is in the fill tank. Other improvements to prior art vapor recovery nozzles include an improved trigger mechanism having a camming surface to engage the stem of the main valve.

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: An automatic shut-off nozzle has liquid flow through its vapor return means automatically stopped when liquid has filled the vapor line sufficiently to move a first valve to block the vapor return line. This blocking of the vapor return line by the liquid increases the pressure in the tank being filled to cause stopping of liquid flow through the automatic shut-off nozzle. If the pressure in the tank increases beyond a predetermined pressure when the first valve is in its blocking position, the increased pressure is vented by a second valve, which is supported by the first valve, moving to an open position. The automatic shut-off nozzle also stops flow in response to the tank being filled to a predetermined level with liquid or to the pressure in the tank exceeding a predetermined pressure even when there is no blocking of the vapor line by the first valve.

Abstract: A fuel dispensing nozzle having an aspirator valve which closes an aspirator line when there is a high negative or positive pressure in the fuel tank being filled, the closing of the aspirator line decreasing pressure in a chamber so that a shaft is released whereby the nozzle automatically shuts off. The nozzle also has a poppet valve controlled with the fuel valve of the nozzle, which poppet valve seals a vapor return line through the nozzle when the fuel valve is shut off.

Abstract: An automatic shut-off nozzle has a diaphragm responsive to the vapor pressure in a sealed tank to stop the liquid flow through the nozzle when a predetermined pressure exists in the sealed tank. The force of a spring, which acts on the side of the diaphragm not exposed to the vapor pressure in the tank, is adjusted to insure that the flow is stopped at the predetermined pressure.

Abstract: An automatic shut-off nozzle has liquid flow through its vapor return means stopped in response to movement of an actuator by a flexible diaphragm when liquid has filled the vapor line sufficiently to move a float into engagement with the diaphragm. The actuator produces a signal to cause stopping of liquid flow through the nozzle. In another embodiment, a flexible diaphragm is positioned to block vapor flow through the vapor return means when a predetermined quantity of liquid is collected by the diaphragm. The blocking of the vapor return means creates an increased pressure, which can be sensed by a pressure transducer, for example, with the pressure transducer producing a signal to stop liquid flow through the nozzle. The automatic shut-off nozzle also stops flow in response to the tank being filled to a predetermined level with liquid or to the pressure in the tank exceeding a predetermined pressure.

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

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 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: An anti-pollution nozzle assembly that removably engages the fuel inlet tube on an automotive vehicle and removes fuel vapor from the tank thereof at a rate that varies with the rate at which fuel is discharged into said tank by said nozzle assembly, with the removed fuel vapor being returned to the fuel storage tank of the service station where the anti-pollution nozzle assembly is employed.

Abstract: A fuel dispensing nozzle has a diaphragm responsive to vacuum for shutting off the flow of fuel through the nozzle, the diaphragm chamber normally being vented to atmosphere by a tube extending to the mouth of the spout and closable by fuel in the tank being filled to cause vacuum to actuate the diaphragm and shut off the fuel-flow through the nozzle, and a normally open valve in the vent tube, a piston for closing the vent tube valve in response to vapor pressure in the tank being filled, and conduit means providing vapor communication between the piston and the interior of the tank, whereby to shut off the flow of fuel through the nozzle when predetermined vapor pressure occurs in the tank being filled.

Abstract: An automatic shut-off nozzle incorporating a vapor recovery system for recovering the displaced vapors from a gasoline storage tank or the like as the tank is being filled by the nozzle wherein the nozzle is automatically shut-off when the pressure within the vapor recovery system increases above a predetermined minimum pressure. The nozzle incorporates a latching mechanism which is releasable in response to the increase in pressure in the vapor recovery system and which is also responsive to a loss of vacuum pressure resulting from the level of the liquid in the storage tank rising above a predetermined level with respect to the nozzle. The nozzle is constructed such that the ambient pressure in the main diaphragm chamber corresponds to the pressure of the vapor recovery line so that the release mechanism for the slide is not as sensitive to the pressure in the gasoline storage tank.

Abstract: A nozzle for use in controlling the flow of liquids incorporating a positive pressure generating device which provides a positive pressure to a diaphragm chamber which serves to retain the valve in an open position after manual opening of the valve by means of a manually operable actuator mechanism. The valve actuator mechanism includes closure means for moving the valve closure means to a closed position and releasable opening means for moving the valve closure means to an open position. A releasable opening means is released when the diaphragm chamber is positively pressurized at a pressure sufficient to retain the valve closure means in a predetermined open position. This provides a nozzle which, after initial manual opening, will be automatically closed when the positive pressure provided by the positive pressure generating device is cut off by the rising level of liquid within the tank.