In an outer container (1) there is disposed an inner container (2) which contains the product to be withdrawn in portions. On the top of a container cover (4) there is a diaphragm-like body (6) with a bore (7) for the emergence of the product. When not in use, the diaphragm-like body (6) lies tightly against a plug (8) which closes the bore (7). The plug (8) is joined by ribs (10) to a ring (11) to which the inner container, consisting of soft material, is fastened. The container cover (4) and the ring (11) are joined together by interlocking. When the outer container (1) is squeezed a pressure develops in the interstice between the two containers, which interstice can be shut off by an air valve (15), and by this pressure a certain amount of the product is forced out of the inner container (2) between the plug (8) and the yielding diaphragm-like body (6), whereupon the diaphragm-like body (6) returns again to the sealing position. The product is thus always protected against the access of air.
A fluid dispenser comprising a dispensing member (1, 2) and packaging (4) surrounding said dispensing member at least in part, said dispensing member (1, 2) comprising a fluid reservoir (1) defining a neck (11) and at least one deformable actuating wall (10) serving to be pushed in to reduce the internal volume of the reservoir, said dispensing member (1) being provided with a dispensing orifice (25) through which the fluid is delivered by pressing on the actuating wall (10) of the reservoir (1), said packaging (4) having at least one deformable face (41) situated facing the actuating wall (10) of the reservoir, so that the actuating wall can be pushed in via the deformable face of the packaging, said fluid dispenser being characterized in that the packaging (4) is connected to the dispensing member (1, 2) at a fixing appendage (21) that is secured to or integral with the dispensing member and that has a fixing zone (210) for fixing to the packaging (4).
A check valve disposed to fit between paired outlet nozzles of adjacent cartridges of a multiple component reactive fluid system and a mixing tube sealed over the nozzles and having a single outlet for discharging the mixed reactive material. The check valve has a flat portion and an upstanding wall formed therefrom, each sized and shaped to seat over the nozzles and against the mixing tube. Openings formed in the flat portion commumicate with the nozzles and provide separate flow paths of the respective materials to the mixing tube. Check structure as separate flaps integral with the wall cover and close the openings. The internal flap resilience normally holds the check valve closed, but allows flap flexture to open the outlet nozzle when the cartridge pressures exceed the closing forces. The check valve restricts back flow of either material into either outlet nozzle.
A problem which arises with dispensers for semi-liquid substances lies in there being an outlet channel which is permanently in communication with ambient air. After first use of the dispenser, the corresponding dead volume is filled with semi-liquid substance which quickly becomes spoiled; thereby making subsequent utilization at least difficult and possibly toxic or even impossible. The present invention avoids this difficulty by means of a pushbutton in which the outlet channel is defined by co-operation between a flexible part and a rigid part. The outlet channel extends essentially radially and its volume is reduced when the user applies axial pressure on the pushbutton. A motion transforming system for transforming axial displacement into radial displacement serves simultaneously to retract a plunger received in the outlet channel, thereby disengaging the delivery orifice of the pushbutton. Such a pushbutton is particularly advantageous when used in association with a metering pump type dispenser valve which can then be made without its own outlet valve.
An assembly for packaging a product such as a cosmetic product in the form of a cream or a gel. The assembly includes a flexible container or pot containing the product, with the container having a first end closed by a bottom and a second end, opposite the first, forming a neck delimiting an opening. The flexible container is removably disposed in a rigid structure with the rigid structure preferably extending substantially over the entire height of the container lying under the neck. The flexible container is configured so that, once it is extracted from the rigid structure, pressure exerted on the flexible container causes deformation of the container to displace the product towards the opening for use. The container can return to its undeformed shape by elastic return forces when the pressure ceases.
The invention concerns a fluid product dispenser comprising a gas reservoir (10), a fluid product reservoir (20), a dispensing head comprising at least one dispensing orifice (30). The gas reservoir and the fluid product reservoir are connected to the head so that their contents can communicate with the at least one dispensing orifice. The dispenser comprises a movable actuation wall (14; 24) to simultaneously generate a pressure state in the gas and fluid product reservoirs and thus force the fluid product and the gas through the the at least one dispensing orifice.
