Apparatus for preparing a coffee extract with a fine-bubble...

Details Apparatus for preparing a coffee extract with a fine-bubble... Apparatus for preparing a coffee extract with a fine-bubble...

A - Human Necessities

47

J

A47J 31/46 (2006.01)

Patent

CA 2421239

This invention relates to an apparatus for preparing a coffee extract with a fine-bubble froth layer, provided with at least one inlet (2) to which coffee extract is supplied, at least one outlet (4.1; 4.2) for dispensing the coffee extract with the fine-bubble froth layer and at least one liquid flow path extending from the at least one inlet (2) to the at least one outlet (4.1; 4.2) and along which, in use, the coffee extract flows from the at least one inlet (2) to the at least one outlet (4.1; 4.2), while in the liquid flow path a liquid impact surface (12) is included and the at least one inlet is provided with at least one spout opening for generating at least one coffee extract jet which, in use, squirts to the liquid impact surface when the coffee extract is supplied to the at least one inlet. According to the invention, the impact surface (12) is provided with a roughened surface structure.

L'invention concerne un appareil pour préparer un extrait de café avec une couche de mousse à fines bulles. Cet appareil comporte au moins une entrée (2) dans laquelle l'extrait de café est fourni, au moins une sortie (4.1; 4.2) pour distribuer cet extrait de café et au moins une trajectoire d'écoulement liquide s'étendant à partir de cette entrée (2) jusqu'à la sortie (4.1; 4.2) et le long de laquelle, en service, l'extrait de café s'écoule depuis l'entrée (2) jusqu'à la sortie (4.1; 4.2). La trajectoire d'écoulement liquide comprend une surface d'impact liquide (12) et l'entrée est pourvue d'au moins une ouverture de jet pour générer un jet d'extrait de café, qui en service, vient frapper la surface d'impact liquide lorsque l'extrait de café est fourni à l'entrée. Selon l'invention, la surface d'impact (12) est pourvue d'une structure de surface rugueuse.

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