Abstract: A bottle cartridge fits in the neck of a bottle providing liquid flow and venting from the bottle interior when operably connected to a dispenser, and preventing spills or leakages upon any bottle upset. Dual seals are provided; a valve core is operated by connecting the cartridge to a dispenser coupling. Cartridge materials are disclosed.

Abstract: A bottle cartridge fits in the neck of a bottle providing liquid flow and venting from the bottle interior when operably connected to a dispenser, and preventing spills or leakages upon any bottle upset. Dual seals are provided; a valve core is operated by connecting the cartridge to a dispenser coupling. Cartridge materials are disclosed.

Abstract: A dispenser selectively mixes one or more chemical fluids into a motive fluid such as water by using diverting motive fluid to one or more channels formed in an eductor body, at least one of the channels being an eductor. When the motive fluid passes through the eductor, a selected chemical fluid is eductively drawn into the venturi of the eductor, producing a mixed fluid having a desired total flow rate and dilution ratio. Additional dilution ratios, flow rates, and chemical fluids are selectable by diverting motive fluid to another channel or combinations of channels. Carry-over of chemical fluid between dispensing is avoided by diverting the motive fluid rather than by diverting the concentrated chemical fluid.

Abstract: A dispenser for dispensing at two flow rates eductively draws a chemical fluid such as a concentrated cleaning solution for diluting with a motive fluid such as water. Using eduction rather than gravity feed provides a consistent dilution ratio over a range of pressures of the motive fluid. A chemical reservoir contains the chemical fluid and a bottle insert assembly for interfacing to the dispenser. The bottle insert assembly seals an opening to the reservoir when the reservoir is not inserted in the dispenser, preventing leaks. Also, the bottle insert assembly includes dual pickup tubes, each with a purge accumulator, to allow dual rate flow at the same or different dilution ratios as well as drawing back unused chemical fluids from the dispenser to avoid carryover or contamination.

Abstract: A dispenser for dispensing at two flow rates eductively draws a chemical fluid such as a concentrated cleaning solution for diluting with a motive fluid such as water. Using eduction rather than gravity feed provides a consistent dilution ratio over a range of pressures of the motive fluid. A chemical reservoir contains the chemical fluid and a bottle insert assembly for interfacing to the dispenser. The bottle insert assembly seals an opening to the reservoir when the reservoir is not inserted in the dispenser, preventing leaks. Also, the bottle insert assembly includes dual pickup tubes, each with a purge accumulator, to allow dual rate flow at the same or different dilution ratios as well as drawing back unused chemical fluids from the dispenser to avoid carryover or contamination.

Abstract: A dispenser selectively mixes one or more chemical fluids into a motive fluid such as water by using diverting motive fluid to one or more channels formed in an eductor body, at least one of the channels being an eductor. When the motive fluid passes through the eductor, a selected chemical fluid is eductively drawn into the venturi of the eductor, producing a mixed fluid having a desired total flow rate and dilution ratio. Additional dilution ratios, flow rates, and chemical fluids are selectable by diverting motive fluid to another channel or combinations of channels. Carry-over of chemical fluid between dispensing is avoided by diverting the motive fluid rather than by diverting the concentrated chemical fluid.

Abstract: A remote activation dispensing apparatus for dispensing fluids. An actuating device positioned on a dispensing tube is operably connected to a flexible elongated member, which is operably connected to a valve in a dispensing unit. Upon manipulation of the actuating device, the valve is actuated for passing or cutting off fluids from the dispensing unit to the dispensing tube.

Abstract: A purge valve for use with a chemical select valve comprises, in a preferred embodiment, an enlarged chamber in the vacuum impelled feed line to the select valve. The chamber is formed by resilient walls, collapsible upon vacuum operation to draw chemical into a venturi line where it is mixed with water and dispensed. The walls do not fully collapse and provide passages for chemical flow. Upon vacuum interruption, the chamber walls expand, returning the chamber to its larger volume and drawing chemical back upstream from common passages in the select valve. Another chemical can then be selected without contamination of the preceding chemical in the common passages.

Abstract: A vacuum assisted, vapor recovery fuel nozzle comprising a nozzle body and a spout mounted thereon. The spout comprises an inner tube and an outer tube. The inner tube and passage means in the body provide a fuel passage. The inner and outer tubes define a vapor return passage in the spout. The inner end of the outer tube is provided with a radial flange, which is clamped, by a breakaway nut, on the nozzle body to mount the spout thereon. The nozzle is provided with an automatic shut off mechanism, which includes a venturi valve for generating a negative pressure. In the absence of an overfill condition, this negative pressure is vented to atmosphere through a vent tube disposed in the vapor return passage. A normally closed vapor return valve, mounted on the nozzle body, is opened in response to the nozzle's flow control valve, so that vapors will be drawn into the entrance of the vapor return passage at the outer end of the spout.

Abstract: A vapor recovery nozzle includes a spout construction comprising an outer aluminum tube and an inner nylon tube. The distal ends of the tubes are joined so that the inner tube defines an central fuel passage and, in combination with the outer tube, defines a generally annular vapor return passage. a distal end portion of the outer tube has a reduced wall thickness and its inner end is expanded to mount a locator ring thereon. The spout assembly is telescoped into an adapter that connects the fuel and vapor passages to corresponding passages in the nozzle body. A spout nut threads into the nozzle body and engages the locating ring to mount the spout on the nozzle. The outer spout tube is formed by lathe operations which include turning a fracture groove adjacent its inner end, and, thereafter bending the tube to angle the distal end portion of the tube downwardly from its inner end. A second embodiment teaches the use of structural, synthetic resins in forming the outer spout tube.

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: An improved selector valve includes a sealing disc with a sealing face biased against an opposed sealing face of a port plate. The sealing disc has a channel located in the sealing face which communicates with an outlet port and a single selected inlet port on the port plate while simultaneously sealing off all other inlet ports. A venturi eductor has a suction passage sealed directly to the port plate outlet for connecting the venturi directly to a selected inlet port. A connection bridge spans a tolerance gap between the port plate to the eductor. The flow path of the fluid through the selector valve has been streamlined to eliminate stagnation points and minimize turbulent flow of the fluid. As a result, the dilution rate of the chemical and water being dispensed upon actuation of the valve is improved and purging of the selector valve is eliminated because the amount of residual chemical remaining in the selector valve is minimized.

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: A vacuum assisted, vapor recovery fuel nozzle comprising a nozzle body and a spout mounted thereon. The spout comprises an inner tube and an outer tube. The inner tube and a passage in the body provide a fuel passage. The inner and outer tubes define a vapor return passage in the spout. The inner end of the outer tube is provided with a radial flange, which is clamped, by a breakaway nut, on the nozzle body to mount the spout thereon. The nozzle is provided with an automatic shut off mechanism, which includes a venturi valve for generating a negative pressure. In the absence of an overfill condition, this negative pressure is vented to atmosphere through a vent tube disposed in the vapor return passage. A normally closed vapor return valve, mounted on the nozzle body, is opened in response to the nozzle's flow control valve, so that vapors will be drawn into the entrance of the vapor return passage at the outer end of the spout.

Abstract: A vacuum assisted, vapor recovery fuel nozzle comprising a nozzle body and a spout mounted thereon. The spout comprises an inner tube and an outer tube. The inner tube and a passage in the body provide a fuel passage. The inner and outer tubes define a vapor return passage in the spout. The inner end of the outer tube is provided with a radial flange, which is clamped, by a breakaway nut, on the nozzle body to mount the spout thereon. The nozzle is provided with an automatic shut off mechanism, which includes a venturi valve for generating a negative pressure. In the absence of an overfill condition, this negative pressure is vented to atmosphere through a vent tube disposed in the vapor return passage. A normally closed vapor return valve, mounted on the nozzle body, is opened in response to the nozzle's flow control valve, so that vapors will be drawn into the entrance of the vapor return passage at the outer end of the spout.