Abstract: A dispensing and metering device for liquids has a valve arrangement controlling the dispensing so that a metering chamber can be filled with a quantity of liquid and this quantity of liquid can then be drained. To ensure suitable metering, parts of the valve arrangement may remain in suitable sockets at inlet and outlet ends of the chamber so that liquid cannot flow continuously from the inlet to the outlet, in use. The outlet is provided below the chamber and an air bleed hole opens into the device between the chamber and outlet to allow air to enter the chamber to replace liquid being dispensed. The bleed hole can be valveless. In order to attach the device to a bottle, the device may have a resiliently deformable sleeve expansible radially into engagement with the interior of a bottle neck by axial compression of the sleeve. The device thus fits many bottles.

Abstract: A dispensing and metering device which can be attached to the neck of a bottle has a housing defining a chamber having an inlet and an outlet. The chamber can be filled through the inlet with liquid from a bottle secured to the device by an attachment element and can be drained through the outlet. A valve arrangement which includes an outlet nozzle extending generally away from the outlet, is movable from a first condition in which it closes the inlet and opens the outlet, through a second condition in which it closes both the inlet and the outlet, to a third condition in which it closes the outlet and opens the inlet. A flow path is defined at least partly within the valve arrangement for introducing air into the chamber via the nozzle and the outlet. The air replaces liquid flowing from the outlet when the outlet is open. The valve arrangement is resiliently biassed to the third condition to keep the outlet closed until the valve arrangement is operated.