Foods and beverages: apparatus – Beverage – Infusors
Patent
1978-10-11
1980-04-29
McCarthy, Edward J.
Foods and beverages: apparatus
Beverage
Infusors
99281, A23F 100
Patent
active
042000394
ABSTRACT:
A coffee machine comprising a pressure-tight boiler having a hot water tank and a cold water tank having a volume at least about half the volume of said hot water tank, a heater located in the hot water tank, a filter chamber, a discharge line connected to the filter chamber, an ascending tube running from the bottom of the hot water tank to the inlet end of said discharge line, hot water being forced up through said ascending tube after heating of the water by a buildup of pressure in said boiler, the hot water passing into the discharge line and to the filter chamber, said cold water tank communicating with said hot water tank in an upper region of said boiler and also through a connection near the bottom thereof so that as the hot water is forced out of the hot water tank, cold water will flow into the hot water tank from the cold water tank, the connection controlling the quantity of cold water supplied to thereby controlling the maximum temperature of the hot water and substantially preventing heat from penetrating into said cold water through convection.
REFERENCES:
patent: 2869451 (1959-01-01), Brondl
patent: 2874630 (1959-02-01), Valente
patent: 3278087 (1966-10-01), Stasse
patent: 3423209 (1969-01-01), Weber
McCarthy Edward J.
Wurttembergische Metallwarenfabrik
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