|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||99/283 ; 99/281 ; 99/280|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 60 인용 특허 : 3|
A control device processes simultaneously the signals received from a temperature sensor and from a water delivery counter means to control instant by instant the pump delivery and the electricity feeding of the machine heat exchanger so as to maintain at the reference temperature the water exiting the heat exchaner;
[ What is claimed is:] [1.] In a coffee machine comprising a source of water (1) and an electric pump (6) to transfer water to a brewing chamber (3) after passing through a heat exchanger (7) where it is heated by an electric resistor (8) able to instantly bring the water to the desired reference temperature (Tr), at least one water delivery counter means (12) that instant by instant measures the quantity of water transferred towards said chamber, a temperature sensor (13) that instant by instant detects the temperature reached by the water and a single ...