Extraction means for producing coffee for a coffee machine

Details Extraction means for producing coffee for a coffee machine Extraction means for producing coffee for a coffee machine

2006-03-28

2006-03-28

Simone, Timothy F. (Department: 1761)

Foods and beverages: apparatus

Beverage

Infusors

C099S28900D, C099S287000, C099S297000, C099S30200C

Reexamination Certificate

active

07017474

ABSTRACT:
An extraction device for producing coffee for a coffee machine is equipped with a brewing cylinder (2) for receiving coffee powder. The brewing cylinder is reciprocably adjustable between pre-determined positions along its axial direction in co-operation with a drive mechanism (4). Two pistons (31, 32) that are coaxially adjustable relative to one another, are located in the brewing cylinder (2). The brewing cylinder (2) incorporates a cylinder section (20), and an additional part (22) is also envisaged. The additional part (22) is moveably located at an end of the brewing cylinder (2) that can be closed by the first piston (31) and equipped with a filler opening (24) for the insertion of the coffee powder. In this way the length of the extraction device can be shortened.

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