Dispensing device
AssigneeRexam Airspray N.V.
InventorsEdgar Ivo Maria van der Heijden, Peter Jozef Jan Albertz, Sylvia Boshuizen
Life of this patent
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Abstract
The present invention relates to a dispensing device comprising:—a container (2) for holding a liquid having an opening, and—a dispensing assembly (4) mountable on or in said opening, said dispensing assembly comprising:—a pump (5) having a pump chamber (7) and a pump inlet (6) comprising an inlet valve (9) and a pump outlet (8) comprising an outlet valve (10), and—a liquid supply channel (16), one end of said channel (16) being in fluid communication with said inlet (6), the other end being arranged in a bottom portion of said container (2), wherein a one-way valve (20) is arranged in said channel (16), and wherein an air inlet opening (17) is provided between said inlet valve (9) and said one-way valve.
Claims17
A dispensing device comprising:
- a container for holding a liquid having an opening, and
- a dispensing assembly mountable on or in said opening, said dispensing assembly comprising:
- a pump having a pump chamber and a pump inlet comprising a inlet valve and a pump outlet comprising an outlet valve, and
- a liquid supply channel, one end of said channel being in fluid communication with said inlet, the other end being arranged in a bottom portion of said container,
- wherein a one-way valve is arranged in said channel, and
- wherein an air inlet opening is provided between said inlet valve and said one-way valve.
Method for providing a foam dispensing device, comprising the steps of:
- providing a liquid dispensing device having:
- a container for holding a foamable liquid having an opening, and
- a dispensing assembly mounted or to be mounted on or in said opening, comprising a pump having a pump chamber and an inlet comprising an inlet valve and an outlet comprising an outlet valve, and
- arranging a foam-forming device on or in said inlet of said pump, said foam-forming device defining at least a part of a liquid supply channel, said foam forming assembly comprising a one-way valve and defining at least partially an air inlet opening, said air inlet opening being provided between said inlet valve and said one-way valve.
Foam-forming device mountable on or in an inlet of a liquid pump, defining at least a part of a liquid supply channel, said foam forming assembly further comprising a one-way valve and defining at least partially an air inlet opening, said air inlet opening being provided between said inlet and said one-way valve.
Dependencies are inferred from the claim text.