|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 3 인용 특허 : 24|
In order to detect a lack of coffee beans in a grinder unit of a coffee maker, a method is suggested in which the level and/or the spectrum of an oscillation generated by the grinder unit during its operation is measured. The level of the oscillation and/or the nature of the spectrum are used to decide whether or not coffee beans are present in the grinder unit. Preferably, the level of oscillation of the housing of the coffee grinder unit is monitored. If the level changes by more than a preset value and/or falls below a reference value, it is decided t...
1. A coffee maker comprising: at least one coffee bean container;a grinder unit adapted to grind coffee beans;a brewing unit having a brewing chamber for extracting the ground coffee beans hot, pressurized brewing water, said grinder unit disposed between said container and said brewing unit;a housing containing said grinder unit;at least one sensor, mounted on said housing, for generating a signal indicative of the level and/or the spectrum of an oscillation of said housing generated by said grinder unit during a grinding operation of the grinder unit; ...