Patent ID: 7640716

Claim:
A device for manufacturing foam cushions in particular for packaging purposes, the device comprising a foil supply station and a foam dispensing station, the foil supply station being provided for supplying to the foam dispensing station a foil material, having a first and a second side wall joining each other at a common first border and positioned so as to delimit an inner space accessible by an opening applied in a second border, the foam dispensing station comprising first retaining means, provided for retaining the second border and keeping the opening when retaining the second border, the foam dispensing station further comprising a dispensing member, provided for penetrating through the opening and supplying a foaming substance into the inner space, the device further comprising transport means, provided for transporting the foil material through the dispensing station towards a welding station, the welding station comprising a welding member provided for applying a closure weld on the foil material, characterized in that the foam dispensing station further comprises slot shaping means comprising at least two rotationally driven brushes mounted offset and underneath the opening in such a manner as to form a slot to be crossed by an upper stroke of the foil material, the dispensing member being oriented with respect to the brushes when applied into the opening, in such a manner, as to output the foaming substance towards an upper surface of the brushes before entering the slot.