Foam dispensing assembly
AssigneeTwist Beauty Packaging Airspray N.V.
InventorsMarcus Cornelis Jacobus Tepas, Shivan Ramdhiansing
Life of this patent
Estimating the term…
Abstract
A dispensing assembly to dispense a foam, having: a liquid pump having a liquid inlet (15) and a liquid outlet (16), an air pump having an air inlet (26) and an air outlet (27), a mixing chamber (29), wherein the air outlet and the liquid outlet are in fluid communication with the mixing chamber, a dispensing channel (30). A first end of the dispensing channel is in fluid communication with the mixing chamber (29) and the second end forms a dispensing opening (31) for dispensing of foam. The dispensing channel (30) and the mixing chamber (29) are connected to each other via a constriction. The constriction is formed by an opening having a cross section which decreases towards the dispensing channel.
Claims20
A dispensing assembly to dispense a foam, comprising:
- a liquid pump having a liquid inlet and a liquid outlet,
- an air pump having an air inlet and an air outlet,
- a mixing chamber, wherein the air outlet and the liquid outlet are in fluid communication with the mixing chamber,
- a dispensing channel, wherein a first end of the dispensing channel is in fluid communication with the mixing chamber and the second end forms a dispensing opening for dispensing foam,
- the dispensing channel and the mixing chamber are connected to each other via a constriction,
- wherein the constriction is formed by an opening having a cross section which decreases towards the dispensing channel, wherein the constriction comprises a first cylindrical part having a first diameter and a second cylindrical part having a second diameter, wherein the first cylindrical part is closer to the mixing chamber than the second cylindrical part and wherein the first diameter is larger than the second diameter.
Dependencies are inferred from the claim text.