Abstract: An automatic shut-off nozzle comprises a liquid delivery conduit and a liquid recovery conduit. A valve has a first movable valve portion movable between a valve closed position whereat liquid is precluded from being dispensed from the liquid-dispensing outlet of the liquid delivery conduit and a valve open position whereat liquid is permitted to be dispensed from the liquid-dispensing outlet of the liquid delivery conduit. A manually operable valve control mechanism is reconfigurable between an operating configuration whereat force can be transmitted from the valve control mechanism to the valve to thereby move the first movable valve portion to the valve open position, and a non-operating configuration whereat force cannot be transmitted from the valve control mechanism to the valve. A liquid sensor has a rest state and an actuated state whereat the liquid sensor reconfigures the manually operable valve control mechanism from the operating configuration to the non-operating configuration.

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 nozzle for use in a non-overflow liquid delivery system comprises a nozzle body, a liquid delivery conduit having a liquid-receiving inlet and a liquid-dispensing outlet, and a non-bifurcated liquid recovery conduit having a liquid-receiving inlet and a liquid-conveying outlet. The minimum effective internal cross-sectional area of the liquid recovery throughpassage is greater than half the minimum effective internal cross-sectional area of the liquid delivery throughpassage. A valve has a first movable valve portion and a second movable valve portion that are interconnected one to the other for co-operative movement one with the other. A manually operable trigger is connected to the first movable valve portion for corresponding positive uninterruptable movement of the first movable valve portion between a valve-closed configuration and the valve-open configuration.

Abstract: An automatic shut-off nozzle comprises a liquid delivery conduit and a liquid recovery conduit. A valve has a first movable valve portion movable between a valve closed position whereat liquid is precluded from being dispensed from the liquid-dispensing outlet of the liquid delivery conduit and a valve open position whereat liquid is permitted to be dispensed from the liquid-dispensing outlet of the liquid delivery conduit. A manually operable valve control mechanism is reconfigurable between an operating configuration whereat force can be transmitted from the valve control mechanism to the valve to thereby move the first movable valve portion to the valve open position, and a non-operating configuration whereat force cannot be transmitted from the valve control mechanism to the valve. A liquid sensor has a rest state and an actuated state whereat the liquid sensor reconfigures the manually operable valve control mechanism from the operating configuration to the non-operating configuration.

Abstract: An automatic shut-off nozzle comprises a liquid delivery conduit and a liquid recovery conduit. A valve has a first movable valve portion movable between a valve closed position whereat liquid is precluded from being dispensed from the liquid-dispensing outlet of the liquid delivery conduit and a valve open position whereat liquid is permitted to be dispensed from the liquid-dispensing outlet of the liquid delivery conduit. A manually operable valve control mechanism is reconfigurable between an operating configuration whereat force can be transmitted from the valve control mechanism to the valve to thereby move the first movable valve portion to the valve open position, and a non-operating configuration whereat force cannot be transmitted from the valve control mechanism to the valve. A liquid sensor has a rest state and an actuated state whereat the liquid sensor reconfigures the manually operable valve control mechanism from the operating configuration to the non-operating configuration.

Abstract: A nozzle for use in a non-overflow liquid delivery system comprises a nozzle body, a liquid delivery conduit having a liquid-receiving inlet and a liquid-dispensing outlet, and a non-bifurcated liquid recovery conduit having a liquid-receiving inlet and a liquid-conveying outlet. The minimum effective internal cross-sectional area of the liquid recovery throughpassage is greater than half the minimum effective internal cross-sectional area of the liquid delivery throughpassage. A valve has a first movable valve portion and a second movable valve portion that are interconnected one to the other for co-operative movement one with the other. A manually operable trigger is connected to the first movable valve portion for corresponding positive uninterruptable movement of the first movable valve portion between a valve-closed configuration and the valve-open configuration.

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 nozzle for use in a non-overflow liquid delivery system comprises a nozzle body, a liquid delivery conduit having a liquid-receiving inlet and a liquid-dispensing outlet, and a non-bifurcated liquid recovery conduit having a liquid-receiving inlet and a liquid-conveying outlet. The minimum effective internal cross-sectional area of the liquid recovery throughpassage is greater than half the minimum effective internal cross-sectional area of the liquid delivery throughpassage. A valve has a first movable valve portion and a second movable valve portion that are interconnected one to the other for co-operative movement one with the other. A manually operable trigger is connected to the first movable valve portion for corresponding positive uninterruptable movement of the first movable valve portion between a valve-closed configuration and the valve-open configuration.

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: An automatic shut-off nozzle comprises a liquid delivery conduit and a liquid recovery conduit. A valve has a first movable valve portion movable between a valve closed position whereat liquid is precluded from being dispensed from the liquid-dispensing outlet of the liquid delivery conduit and a valve open position whereat liquid is permitted to be dispensed from the liquid-dispensing outlet of the liquid delivery conduit. A manually operable valve control mechanism is reconfigurable between an operating configuration whereat force can be transmitted from the valve control mechanism to the valve to thereby move the first movable valve portion to the valve open position, and a non-operating configuration whereat force cannot be transmitted from the valve control mechanism to the valve. A liquid sensor has a rest state and an actuated state whereat the liquid sensor reconfigures the manually operable valve control mechanism from the operating configuration to the non-operating configuration.