|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||099/302R; 099/295; 099/323.1|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 17|
The present invention pertains to a brewing filter apparatus capable of preparing foam, froth, or crema, particularly for coffee beverages, under low pressure. The apparatus can operate at pressures below 15 bar and as low as 1-3 bar. The apparatus comprises a mesh cover, coarse filter, fine filter, large 0-ring, coffee container, small 0-ring, and foam maker having two opposing holes. The holes have a diameter in the range of 0.3 to 1 mm. The crema is created by the turbulent contacting of two opposing jets of coffee, which enter the foam maker through ...
1. A method of preparing foam, froth, or crema, in a brewing filter apparatus comprising directing two opposing jets of brewed beverage at a pressure less than 15 bar from substantially opposite directions thereby to contact each other in a turbulent manner and situating a mesh between the opposing jets at the point of contact whereby a foam, froth or crema is produced. 2. The method of claim 1 wherein each of the opposing jets is directed at a pressure in the range of 1-3 bar. 3. A brewing filter apparatus including a beverage container, a filter affixe...