US 7,523,695 B2
System for dispensing metered volumes of heated water to the brew chamber of a single serve beverage brewer
Richard B. Streeter, Winchester, Mass. (US); William T. Jacobs, Lynnfield, Mass. (US); Nicholas G. Lazaris, Newton, Mass. (US); and Charles F. Squires, Newtonville, Mass. (US)
Assigned to Keurig, Incorporated, Reading, Mass. (US)
Filed on Apr. 26, 2004, as Appl. No. 10/832,474.
Prior Publication US 2006/0000363 A1, Jan. 05, 2006
This patent is subject to a terminal disclaimer.
Int. Cl. A47J 31/00 (2006.01)
U.S. Cl. 99—305  [99/300; 99/283] 21 Claims
OG exemplary drawing
 
1. A beverage forming system, comprising:
a storage tank adapted to hold liquid used in forming at least one beverage;
a dispensing tank in fluid communication with the storage tank and adapted to hold a metered volume of liquid;
a brew chamber adapted to receive the metered volume of liquid for formation of at least one beverage;
a liquid supply system adapted to provide liquid from the storage tank to the dispensing tank and to provide the metered volume of liquid from the dispensing tank to the brew chamber;
a sensor to detect an arrival of liquid at a top of the dispensing tank, wherein the sensor detects the presence of liquid in a vent tube that communicates with the dispensing tank; and
a controller adapted to control the liquid supply system based, at least in part, on information from the sensor.