|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||426/433 ; 426/435 ; 426/077 ; 426/595 ; 426/144 ; 426/112|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 70 인용 특허 : 9|
A powdered substance, which is suitable for preparation of a beverage with an extraction fluid and which is compacted in a form of a cake, is extracted for preparation of a beverage. The compacted substance cake is contained within a sachet between two sachet sheets which, prior to extraction of the substance, protect the substance against oxygen and water vapor and which extend to sealed edges for containing the substance within the sheets prior to and during extraction. In effecting extraction, one sheet is perforated first to provide at least one open...
[ We claim:] [1.] In a process for preparation of a beverage wherein an extraction fluid is introduced into a sachet which contains a substance which is suitable for preparation of a beverage for obtaining a beverage, the improvements comprising:positioning a sachet which contains a compacted powder substance cake for preparation of a beverage, wherein the sachet comprises two sheets impermeable to oxygen and water vapor and wherein the cake comprises two cake surfaces which extend to a peripheral cake edge, adjacent a surface of a device for extracting ...