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 at least part of the suction path when fluid to be dispensed flows through the fluid path. The nozzle further includes a shut-off device including a suction chamber fluidly coupled to the suction path and configured such that when the suction path is blocked during fluid dispensing the shut-off device moves to a closed configuration to prevent the nozzle from dispensing fluid through the fluid path. The suction path includes a terminal portion in fluid communication with the suction chamber, and the terminal portion has a cross sectional area of at least about 0.015 square inches.

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 at least part of the suction path when fluid to be dispensed flows through the fluid path. The nozzle further includes a shut-off device including a suction chamber fluidly coupled to the suction path and configured such that when the suction path is blocked during fluid dispensing the shut-off device moves to a closed configuration to prevent the nozzle from dispensing fluid through the fluid path. The suction path includes a terminal portion in fluid communication with the suction chamber, and the terminal portion has a cross sectional area of at least about 0.015 square inches.

The subject of the present invention is a liquid dispenser intended for vehicles and a method implemented during the operation of such a liquid dispenser. The liquid dispenser for a vehicle includes a liquid dispensing circuit (2) connected at one end to a liquid reservoir and at the other end to a flexible hose (3) connected to a gun (4) for dispensing the liquid from a reservoir of the vehicle, the flexible hose (3) having two substantially coaxial ducts (5, 6) including a first duct (5) for transferring the liquid from the liquid dispensing circuit (2) to the gun (4) during the delivery of the liquid from the reservoir of the vehicle, and a second duct (6) extending along the first duct (5). The liquid dispenser includes a heating system (7) intended to generate a flow of hot air through the second duct (6) of the flexible hose (3) so as to heat the liquid inside the first duct (5) of the flexible hose (3).

The subject of the present invention is a liquid dispenser intended for vehicles and a method implemented during the operation of such a liquid dispenser. The liquid dispenser for a vehicle includes a liquid dispensing circuit (2) connected at one end to a liquid reservoir and at the other end to a flexible hose (3) connected to a gun (4) for dispensing the liquid from a reservoir of the vehicle, the flexible hose (3) having two substantially coaxial ducts (5, 6) including a first duct (5) for transferring the liquid from the liquid dispensing circuit (2) to the gun (4) during the delivery of the liquid from the reservoir of the vehicle, and a second duct (6) extending along the first duct (5). The liquid dispenser includes a heating system (7) intended to generate a flow of hot air through the second duct (6) of the flexible hose (3) so as to heat the liquid inside the first duct (5) of the flexible hose (3).

The present invention relates to a system and assembly for refilling a reservoir with liquid dispensed from a dispenser, in particular, but not exclusively, to a system and assembly for the substantially leak-free refilling of the reservoir of a smoking-substitute device with a liquid comprising nicotine from a refill dispenser. The assembly is configured to provide a gas communication pathway through the assembly and physically separate from the liquid communication pathway for venting gas from an end of the assembly proximal the first aperture to an exterior of the assembly responsive to the movement of the assembly to the secured and open configuration, the assembly configured to close the gas communication pathway in the unsecured and closed configuration.

The present invention relates to a system and assembly for refilling a reservoir with liquid dispensed from a dispenser, in particular, but not exclusively, to a system and assembly for the substantially leak-free refilling of the reservoir of a smoking-substitute device with a liquid comprising nicotine from a refill dispenser. The assembly is configured to provide a gas communication pathway through the assembly and physically separate from the liquid communication pathway for venting gas from an end of the assembly proximal the first aperture to an exterior of the assembly responsive to the movement of the assembly to the secured and open configuration, the assembly configured to close the gas communication pathway in the unsecured and closed configuration.

The invention relates to a device for discharging a first fluid and for returning a second fluid, comprising a main channel (13) for discharging the first fluid and a return channel (14) for returning the second fluid. According to the invention, a test channel (15) is provided which connects the main channel (13) to the return channel (14), the main channel (13) having a narrowing (16) and the test channel (15) issuing into the main channel (13) in the region of the narrowing (16). The device further has a sensor (17) which is designed to determine a pressure in the test channel (15). The invention further relates to an outflow tube, a delivery nozzle and a delivery pump having a device according to the invention. With the aid of the invention, active return of the second fluid can be shut off in a simple and safe manner.

The invention relates to a device for discharging a first fluid and for returning a second fluid, comprising a main channel (13) for discharging the first fluid and a return channel (14) for returning the second fluid. According to the invention, a test channel (15) is provided which connects the main channel (13) to the return channel (14), the main channel (13) having a narrowing (16) and the test channel (15) issuing into the main channel (13) in the region of the narrowing (16). The device further has a sensor (17) which is designed to determine a pressure in the test channel (15). The invention further relates to an outflow tube, a delivery nozzle and a delivery pump having a device according to the invention. With the aid of the invention, active return of the second fluid can be shut off in a simple and safe manner.

A leak stop assembly for an automatic shut-off fluid nozzle having a fluid flow path and a check valve with a through bore in the flow path. The assembly includes a bleeder seat that houses a length of the flow path proximate the check valve, a rubber plug, and a rigid cross-brace attached to the bleeder seat and holding the plug. Fluid flows around the check valve when open. The cross-brace positions the plug relative to the check valve through bore such that the plug seals against the check valve through bore when the check valve is closed.

Configuring a high-vapor-pressure (HVP) material comprising a plurality of component hydrocarbons; flashing the HVP material from an HVP liquid to an HVP vapor as the HVP liquid is introduced into an evacuated portion of a containment vessel; introducing a relief mass from a process relief event occurring outside the containment vessel to mix with the HVP material in the containment vessel; and distributing energy from the process relief mass within the containment vessel using a plurality of energy absorption processes in the component hydrocarbons as the plurality of component hydrocarbons respectively condense to liquid phases over time. The evacuated portion of the containment vessel may be a headspace vacuum above a low-vapor-pressure (LVP) liquid within the containment vessel. The HVP material may comprise C4-C10 hydrocarbons. The HVP material may comprise a plurality of component hydrocarbons having diverse boiling points and vapor pressures, that absorb and distribute the relief mass energy.