Foods and beverages: apparatus – Beverage – Infusors
Patent
1988-11-14
1989-06-27
Jenkins, Robert W.
Foods and beverages: apparatus
Beverage
Infusors
99285, 99286, 99292, A47J 31047
Patent
active
048418498
ABSTRACT:
An electric siphon coffee maker including a lower container for containing water and an upper container for containing coffee powder is disclosed. The upper container is placed over the lower container so that a water feed tube of the upper container is inserted into the lower container. Heat is applied by a heater to the lower container containing water and the hot water is transferred from the lower container to the upper container by aerial pressure in the lower container. A temperature sensor senses the temperature of a portion of the device, which temperature is increased in accordance with the increase of the temperature of the water contained in the lower container in the case where heat is applied to the lower container. A heater input power control circuit acts to reduce the heater input power in accordance with the temperature sensed by the temperature sensor. A heater deenergizing circuit acts to stop energizing the heater after or immediately before the temperature sensed by the temperature sensor reaches the temperature at which the hot water transfer to the upper container is completed.
REFERENCES:
patent: 2576432 (1951-11-01), Wilcox
patent: 3224360 (1965-12-01), Wickenberg
patent: 4406217 (1983-09-01), Dota
patent: 4721034 (1988-01-01), Shimomura
Hotta Tomio
Shimomura Nobuo
Jenkins Robert W.
Kabushiki Kaisha Toshiba
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