|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||99/287 ; 99/289R ; 99/300|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 3 인용 특허 : 0|
Automatic coffee machine has ground coffee deposited into an infusion chamber, in which it is compressed between an infuser piston and a filter piston. A packing stabilizes the seal between the infusion chamber and the infuser piston. The infuser piston is divided into two parts, with one part sliding into the other part against an opposing spring resistance.
Automatic coffee machine, comprising an infusion chamber for ground coffee; an infuser piston in the infusion chamber and a filter piston for compressing coffee, the coffee beverage exiting from said infusion chamber, deliverable as coffee; a toroidal rubber ring for stabilizing the seal between said infusion chamber and the infusion piston while said infusion piston is working in said infusion chamber compressing the ground coffee; said infuser piston having first and second parts, a spring located in a spacing between said first and second parts with o...