06658989 is referenced by 129 patents and cites 3 patents.

For use in a single serve beverage brewer in which a measured charge of a dry beverage medium is infused with a metered amount of heated liquid to produce a beverage medium, a reusable beverage filter cartridge is provided for containing the beverage medium and for accommodating an inflow of the heated liquid and an outflow of the beverage medium. The cartridge comprises a cup-shaped housing having a top opening and a closed bottom with an outlet port. A filter internally subdivides the housing into a first chamber accessible via the top opening and configured and dimensioned to contain the beverage medium, and a second chamber communicating with the outlet port. A lid is removably secured to the housing in a position closing the top opening, and an inlet port in the lid serves to admit heated liquid into the first chamber for infusion with the beverage medium contained therein. The filter is permeable to accommodate a flow therethrough of the resulting beverage into the second chamber from which it exits via the outlet port.

Title
Re-usable beverage filter cartridge
Application Number
10/115768
Publication Number
6658989 (B2)
Application Date
April 3, 2002
Publication Date
December 9, 2003
Inventor
Roderick H Beaulieu
Cumberland
RI, US
Nicholas G Lazaris
Newton
MA, US
Richard P Sweeney
Winchester
MA, US
Agent
Samuels Gauthier & Stevens
US
Assignee
Keurig Incorporated
MA, US
IPC
A47J 31/06
View Original Source