Filter holder particularly for espresso coffee machines

摘要

A filter holder particularly for espresso coffee machines, comprising a cup-shaped body (2) which has a substantially cylindrical shape with respect to an axis (3), the body (2) being open in an upward region for watertight fitting on an espresso coffee machine and having an opening (5) on its bottom which is arranged on the axis (3) of the cup (2) for the passage of an extracted beverage, the filter holder comprising an adapter (8), which is fitted in the cup (2) and is substantially cylindrical in order to accommodate a substance in powder form from which a beverage is to be extracted, the adapter (8) being able to rotate coaxially with respect to the cup (2).

主权项

1. A filter holder particularly for espresso coffee machines, comprising:
a cup-shaped body which has a substantially cylindrical shape with respect to a central axis of said cup-shaped body, said cup-shaped body having a side wall and a bottom, and said cup-shaped body being open in an upward region for fitting on an espresso coffee machine and having an opening in said bottom which is arranged on said central axis of said cup-shaped body for the passage of an extracted beverage; and an adapter which is fitted and arranged inside said side wall of said cup-shaped body, said adapter being cylindrical and comprising a base and a side wall which form an extraction chamber adapted to accommodate a substance in powder form from which a beverage is to be extracted, said base of said adapter being supported above said bottom of said cup-shaped body, and said adapter being fixed to said cup-shaped body such that said adapter is able to freely rotate coaxially with respect to said cup-shaped body, said adapter being fixed to said cup-shaped body inside the cup-shaped body such as to be adapted to prevent an axial movement of said adapter in a direction toward said upward region of said cup-shaped body and away from said bottom of said cup-shaped body, such that said axial movement of said adapter is blocked and simultaneously said adapter is free to rotate coaxially with respect to said cup-shaped body, and said side wall of said adapter having a height sufficient to form an internal surface of said adapter that is adapted to sealingly engage a gasket of an extraction assembly to form said extraction chamber.