Coffee maker

Details Coffee maker Coffee maker

1984-10-03

1985-10-22

Jenkins, Robert W.

Foods and beverages: apparatus

Beverage

Infusors

99282, 99283, 99295, 99307, A47J 3100

Patent

active

045481296

ABSTRACT:
The invention relates to a coffee maker comprising a water reservoir (1), a filter device (2) and a flow heater (3) for heating water from the water reservoir for delivery to the filter device. A problem associated with coffee makers is the deposit of scale in the flow heater. It is proposed to provide a coffee maker with means (13, 14) for adding a small amount of coffee extract to the water before it enters the flow heater (3). Coffee extract naturally contains phosphoric-acid-like compounds which inhibit the crystal growth of metal salts in the water. Preferably, coffee extract is fed continuously from the filter device (2) to the water reservoir (1).

REFERENCES:
patent: 3596588 (1971-08-01), Moss
patent: 4083295 (1978-04-01), Hollingsworth
patent: 4147097 (1979-04-01), Gregg
patent: 4169978 (1979-10-01), Hauslein
patent: 4224503 (1980-09-01), Gijzel
patent: 4328106 (1982-05-01), Harrar

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