Patent ID: 6012379
Filing Date: 2000-01-11
Classification: A47J

Abstract:
A filter holder, which is intended to be installed on an espresso coffee machine, includes a pan, adapted to receive a filter, which is intended to contain a measure of ground coffee, said filter having a perforated bottom, a body, placed in the pan below the filter and provided with at least one distribution funnel, the lower end of which extends through the bottom of the pan, an annular chamber to collect the infusion formed between the bottom of the filter and the upper surface of the body and opening into a strainer, through which the infusion exits, wherein the strainer extends in an annular fashion around a bossing created in the upper surface of the body, the mouth of the strainer communicating with said funnel, permitting the infusion to flow out of the pan, and a device for the production of foam having an elastic annular gasket placed around the bossing, which is suitable for blocking the mouth of the strainer and which is deformable by expansion under the effect of the pressure prevalent in the collection chamber in such a manner, so as to form at least one passage, which places said mouth in communication with the funnel, permitting the flow of the infusion.