Patent ID: 7472642
Filing Date: 2009-01-06
Classification: A47J

Abstract:
1. A nozzle adaptable to a steam outlet of a coffee machine designed to froth a liquid, the nozzle comprising in a direction of the steam flow path: a steam inlet opening, a restriction with limited cross-section adapted to accelerate the velocity of the steam flow, at least one tubular portion of mixing cavity having a cross-section larger than the restriction and comprising an opening, wherein the nozzle comprises a conduit for the liquid or a liquid/air mixture, the conduit joining the steam flow path at the restriction or stream-upwards of the restriction, the nozzle further comprises an outer casing comprising a smoothening reservoir and a jet breaking surface facing the opening and at least one outlet opening radially offset relatively to the opening of the portion of the enlarged mixing cavity, and the outer casing is arranged at least partially around the tubular portion of mixing cavity.