06142063 is referenced by 183 patents and cites 3 patents.

An automated beverage brewing system includes a liquid storage tank and a metering chamber. The metering chamber is at least partially submerged beneath a standing level of liquid in the storage tank. The chamber includes a sealable liquid inlet port communicating with the interior of the storage tank beneath the standing level of liquid. The chamber also includes a liquid outlet port and an aperture that receives compressed air, wherein the compressed air forces a predetermined amount of liquid from the liquid output port of the chamber for use in preparing a brewed beverage. A pump provides the compressed air and a controller monitors a pressure signal value indicative of the air pressure in the metering chamber. The controller commands the pump on to commence flow of the predetermined amount of liquid from the metering chamber. The controller then commands the pump off several seconds after detecting a drop in air pressure within the chamber, indicating that the predetermined amount of liquid has been delivered to the brewing chamber. The chamber is then vented to ambient pressure, which opens the sealable liquid inlet port and refills the chamber.

Title
Automated beverage brewing system
Application Number
9/232994
Publication Number
6142063
Application Date
January 19, 1999
Publication Date
November 7, 2000
Inventor
Jennie Kwo
Cambridge
MA, US
Kenneth A Focht
Needham
MA, US
John E Sylvan
Milton
MA, US
Richard P Sweeney
Winchester
MA, US
James W Wuertele
North Billerica
MA, US
Roderick H Beaulieu
Cumberland
RI, US
Agent
Samuels Gauthier & Stevens
Assignee
Keurig
MA, US
IPC
A47J 31/32
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