Abstract: The invention relates to a foam-dispensing device for dispensing a foam, comprising a manually operated pump assembly. The pump assembly comprises a liquid piston pump for pumping the liquid, and an air pump for pumping air, the liquid and air to be pumped being mixed together to form a foam which is dispensed through a dispensing aperture. The liquid piston pump comprises a pump housing, for example a cylinder, a liquid piston which is movable telescopically in the pump housing, and one or more sealing elements to be fixed on the liquid piston in order to seal the liquid piston in the pump housing. The liquid piston comprises at least two locations for fixing the one or more sealing elements. The invention further relates to a kit for producing a piston with one or more sealing elements for such a dispensing device, and a method for producing a piston pump for such a dispensing device.

Abstract: A method for preparing a beverage which is suitable for human consumption, comprising the steps of: filling a glass or the like with a base liquid which is suitable for human consumption, and using a foam-dispensing foam-dispensing device has a foam liquid which is suitable assembly having an air pump device to form a foam, which reservoir containing a stock of for human consumption and a pump and a liquid pump, as well as from a dispensing opening of glass which has been filled foam-forming means for forming foam using the pumped air and foam liquid, and supplying the foam dispensed the foam-dispensing device to the with base liquid, so that the foam forms a head on top of the base liquid.

Abstract: The invention relates to a dispensing unit for dispensing two fluid substances. The dispensing unit comprises a pump assembly (2) having a first (4) and a second pump (5) which can be actuated by common, manually operable operating means (6) in order to simultaneously dispense the two fluid substances. The dispensing unit also comprises a reservoir assembly (3), the reservoir assembly comprising two reservoirs which are each provided at an outlet side with an outlet and are each delimited by a movable piston (13, 16) on the other side from the outlet, which pistons, during the dispensing of the fluid substances, move toward the respective outlets. According to a first aspect of the invention, the reservoir assembly (3) and the pump assembly (2) are separate assemblies which can be coupled to one another, in such a manner that in the uncoupled state each reservoir can be filled through the outlet of the reservoir, after which the pump assembly and the reservoir assembly are coupled to one another.

Abstract: The invention relates to a combination of a first container and a second container to form a dispensing unit. The first and second containers each have a reservoir for a liquid substance and pump which is secured to the reservoir, can be actuated by hand and has a dispensing opening and a pump-actuating button for dispensing substance from the reservoir. The combination also comprises coupling means for coupling together the first and second containers in a position next to one another. The invention is characterized in that the coupling means comprise: one or more first coupling members, which are each arranged on the first container, and one or more second coupling means, which are each arranged on the second container and which can each be directly coupled to an associated first coupling member on the first container.