05897899 is referenced by 160 patents and cites 25 patents.

A sealed cartridge, which need have no marks for weakening and inside which, no filter is needed, contains a substance, such as roasted and ground coffee, for being extracted under pressure. The cartridge has a cup having a base and a lateral wall extending from the base to a lip which extends laterally away from the wall about a cup opening, and the cartridge has a cover sealed to the lip to cover the opening. Either the cover or the base provides a tear face which is torn under stress during extraction of the substance under pressure for preparation of a beverage.

Title
Cartridges containing substances for beverage preparation
Application Number
880173
Publication Number
5897899
Application Date
February 28, 1994
Publication Date
April 27, 1999
Inventor
Olivier Fond
Kobe
JP
Agent
Vogt & O Donnell
Assignee
Nestec
CH
IPC
A23F 5/26
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