US 4,921,712 · Granted 1990-05-01

Automatic low volume beverage brewing system

The invention is a system including a disposable cartridge for use with a drip type beverage brewing machine. The cartridge comprises a first cup, which has an open first end and a substantially closed second and, the second end being penetrated by at least one port. A filter member shaped substantially congruent with the first cup and coextensive with the first cup, has an open end coincident with the open end of the first cup and a closed end spaced away from the closed end of the first cup. A closure member has an open end and a substantially closed end, is concentric with and secured to and encloses the first cup. The closed end closes the open end of the first cup, and the closed end of the closure member is penetrated by a plurality of holes. A shallow receptacle adjoins the closed end of the closure member and is in fluid communication with the penetrating holes.

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