05840189 is referenced by 211 patents and cites 33 patents.

A beverage filter cartridge includes an impermeable yieldably pierceable base having a predetermined shape and an access opening at one end. A self-supporting wettable filter element is disposed in the base and is permanently sealed to an interior surface of the base. The filter element subdivides the base into first and second chambers, a first chamber for storing an extract of the beverage to be made, and a second empty chamber for accessing the beverage after the beverage outflow from the filter has been made by combining a liquid with the extract. An impermeable, yieldably pierceable, imperforate cover is sealingly engaged with the top of the base to form an impermeable cartridge.

Title
Beverage filter cartridge
Application Number
945746
Publication Number
5840189
Application Date
August 20, 1997
Publication Date
November 24, 1998
Inventor
Peter B Dragone
Concord
MA, US
John E Sylvan
Brookline
MA, US
Agent
Samuels Gauthier Stevens & Reppert
Assignee
Keurig
MA, US
IPC
B65B 29/02
B01D 29/085
B01D 27/00
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