Filter cup for coffee machine and coffee-making process

Foods and beverages: apparatus – Beverage – Infusors

Reexamination Certificate

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Details

C099S30200C, C099S323000

Reexamination Certificate

active

07150219

ABSTRACT:
A coffee machine has a filter holder receiving a filter cup adapted to hold a suspension of hot water and grounds. A generally horizontal filter forming a floor of the cup. The hot water infused by the grounds passes down through the filter as coffee. A side wall formed with a screwthread is provided on the cup underneath and generally perpendicular to the filter. A dispenser on the cup underneath the filter has an outlet directed generally perpendicularly at the side wall for spraying the coffee substantially perpendicularly against the screwthread and thereby generating froth.

REFERENCES:
patent: 4644856 (1987-02-01), Borgmann
patent: 4882982 (1989-11-01), Muttoni
patent: 5590581 (1997-01-01), Strub et al.
patent: 5638740 (1997-06-01), Cai
patent: 6412394 (2002-07-01), Bonanno
patent: 0727164 (1996-08-01), None

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