Abstract: The invention relates to a method for dosed dispensing from a container of a liquid including a substance dissolved therein, like e.g. a carbonated beverage, wherein prior to dispensing of the liquid the pressure in the container is equalized with the ambient pressure in the space in which the liquid is dispensed, said pressure being equalized by first establishing a gas connection and only then establishing a liquid connection between the container and the space in which the liquid is dispensed. In accordance with the invention the liquid is dispensed from the container via a dosing chamber, prior to transferring of the liquid to the dosing chamber the pressure in the container is equalized with the pressure in the dosing chamber, and prior to dispensing of the liquid from the dosing chamber the pressure in said chamber is equalized with the ambient pressure in the space in which the liquid is dispensed.

Abstract: The invention relates to a device for dosed dispensing of a liquid from a container, comprising a housing (3) manufactured from plastic which can be connected to the container, a pump accommodated therein which can be operated by a trigger (8), and means (14) for resetting the trigger to a starting position. The housing takes a thin-walled form, for instance of polypropylene with a wall thickness of less than 1 mm, and has a number of stiffening ribs (17) extending inward from its side walls, while the pump can have a number of protruding supports engaging on the side walls of the housing. The trigger and the resetting means of the dosing device can be manufactured from a relatively more rigid type of plastic than the housing, for instance from a stiffer variant of the plastic used in the housing and/or the pump, and can be manufactured integrally. The invention also relates to a method for assembling such a dosing device.

Abstract: The invention relates to a dosing head (1) for dispensing a fluid from a container, comprising an inlet opening (4) for connecting to the container, an outlet opening (3) connected to the inlet opening (4) via a conduit, a pump (5) received in the conduit and a aerating opening (6) for connecting to the container (2), wherein a liquid seal (8) is arranged between the aerating opening (6) and the container (2). This liquid seal can comprise an aerating channel (15) rotated twice through about 180° and can be “assembled from two mutually connected parts (18, 19). The invention further relates to such a dosing head provided with a secondary inlet opening to be connected to the container and closable by means of an element which can be operated by gravity.

Abstract: An embodiment of the present invention relates to a method for dispensing one or more products to an assembly for carrying out this method, including a form-retaining container for receiving the product(s), the container having an outflow opening, and devices for introducing into the container a medium for displacing the product(s). The displacing medium introduction devices are arranged for introducing the displacing medium into the container such that it exerts on the product(s) substantially only a force directed towards the outflow opening. The displacing medium introduction devices may include a chamber that is separated from the part of the container containing the product(s) via a flexible diaphragm. The dispensing assembly may further include a dispensing adapter connected to the container around the outflow opening and supporting a movable closure member.

Abstract: The invention relates to a precompression system for a liquid dispensing device, which prevents liquid from being discharged until a predetermined pressure has been built up. The precompression system comprises a pump for drawing liquid through an inlet and discharging it through an outlet and a precompression valve disposed between the pump and the outlet. The precompression valve allows liquid in the pump to reach the outlet only after the predetermined pressure is established and stops liquid from reaching the outlet when the pressure falls below the predetermined level. The precompression valve comprises an elastic diaphragm normally closing the valve opening and including a concave surface facing the valve opening and in fluid communication with the pump and a convex surface in fluid communication with atmospheric pressure. The elastic diaphragm may be stretched around a valve seat. The invention further relates to a method of assembling such a precompression system in a liquid dispensing device.

Abstract: The invention relates to a dispensing device, comprising a container and a dispensing head connected thereto, the container and head including a co-operating snap coupling means comprising a plurality of lugs arranged on one of the two parts to be connected and a plurality of recesses arranged in the other part for receiving the lugs in which at least one of the lugs is resiliently deformable and at least one other lug is relatively stiff and non-deformable. Such a dispensing device may swiftly and easily be filled and assembled. At least the lugs are advantageously made of a thermoplastic polyester, like e.g. PET. The invention further relates to a method for filling such a dispensing device with a medium to be dispensed.

Abstract: The invention relates to a method for fixing a relatively flexible element (3) in a tube (2) with tight fitting, by arranging around the flexible element a co-displacing member (5) which encloses this element, and forcing the co-displacing member into the tube while co-displacing therewith the flexible element. The co-displacing member can herein be releasably connected to the tube or the flexible element, and the connection can be broken when the co-displacing member is forced into the tube. The invention also relates to an assembly of a tube and a relatively flexible element for receiving therein with tight fitting, for use in such a method, which is provided with a co-displacing member for arranging around the flexible element and enclosing this element. The co-displacing member can be releasably connected to the tube or the flexible element, for instance be formed integrally with the tube, wherein a weakened portion (6) is then formed between the tube and the co-displacing member.

Abstract: The invention relates to a dispensing device (1), comprising a container (2) and a dispensing head (5) connected thereto, said container (2) and head (5) including a co-operating snap coupling means comprising a plurality of lugs (6, 7) arranged on one of the two parts to be connected and a plurality of recesses (8) arranged in the other part for receiving the lugs (6, 7), in which at least one of the lugs (6, 7) is resiliently deformable and at least one other lug is relatively stiff and nondeformable. Such a dispensing device may swiftly and easily be filled and assembled (1). At least the lugs are advantageously made of a thermoplastic polyester, like e.g. PET. The invention further relates to a method for filling such a dispensing device with a medium to be dispensed.

Abstract: The trigger sprayer comprises: a body having a cylinder therein; a liquid inlet to the cylinder; an outlet waterway in communication with the cylinder; a piston having an inner end and an outer end received in the cylinder; a fluid path including at least a part of the cylinder and the waterway and extending between the piston and an outlet orifice; a trigger coupled to the body and acting on the outer end of the piston; a precompression valve assembly in the fluid path between the piston and the outlet orifice which is operable to allow liquid in a first part of the fluid path to reach the outlet orifice only after a predetermined pressure is established in the cylinder and to stop liquid from reaching the outlet orifice when the pressure in the cylinder falls below the predetermined pressure and which includes a valve seat in the fluid path, a spring valve element and retaining structure for retaining the spring valve element against the valve seat; biasing structure for biasing the piston away from the pre

Abstract: The child lock nozzle cap assembly is mounted at the forward end of a body of a trigger sprayer and includes: a nozzle cap; first locking structure associated with the nozzle cap; and, second locking structure associated with a trigger of the trigger sprayer and cooperating with the first locking structure to lock the nozzle cap against rotation until and unless either the first locking structure is moved out of engagement with the second locking structure or the trigger is moved to move the second locking structure out of engagement with the first locking structure.