| 摘要 |
<p>The invention concerns a filter-holder for an espresso-coffee maker comprising a container (7) designed to receive ground coffee (8) whereof the base (16) comprises at least an orifice for the coffee to flow through above which extends a filtering wall (9) for retaining the ground coffee and at least a joint ring (10) made of elastic material located between the filtering wall (9) and said base (16). The invention is characterised in that said wall (9) comprises several filtering orifices (15) having a diameter adapted to retain the very fine ground grains, and said joint (10) is arranged around the flow orifice(s), and it comprises a fixed lower part (12) integral with the base (16), while its upper part (11) projecting relative to the base (16) is mobile between at least two positions, a first position wherein it is pressed against the filtering wall (9) so as to close the passage of the liquid towards the flow orifice (19), and a second position wherein it is deformed by compression substantially perpendicular to the filtering wall (9) at a predetermined value of the pressure in the container (7) so as to clear the passage for the liquid towards the flow orifice (19).</p> |
