Patent ID: 8424723

Claim:
A beverage dispensing system comprising: a cream container comprising: a first pressurized chamber; a first flexible liner within the first pressurized chamber, wherein the first flexible liner comprises flexible walls that allow pressure from the first pressurized chamber to be transferred to cream stored within the first flexible liner; a first pressure sensor configured to measure a first pressure on the first flexible liner; a first temperature sensor; a first liquid outlet; and a first air pump connected to the first pressurized chamber and configured to control the first pressure in the first pressurized chamber, the first pressure generating a first flow of cream out of the first liquid outlet; a concentrated skim milk container comprising: a second pressurized chamber; a second flexible liner within the second pressurized chamber, wherein the second flexible liner comprises flexible walls that allow pressure from the second pressurized chamber to be transferred to concentrated skim milk stored within the second flexible liner; a second pressure sensor; a second temperature sensor; a second liquid outlet; and a second air pump connected to the second pressurized chamber and configured to control a second pressure in the second pressurized chamber, the second pressure generating a second flow of concentrated skim milk out of the second liquid outlet; a water inlet; a combiner connected to the first liquid outlet, the second liquid outlet, and the water inlet; and a microcontroller connected to the first air pump, the second air pump, the first pressure sensor, the second pressure sensor, the first temperature sensor, and the second temperature sensor, the microcontroller configured to: receive a first signal from the first pressure sensor; introduce an amount of air inside the first pressurized chamber by sending a second signal to the first air pump; receive a third signal from the first pressure sensor after the amount of air is introduced; and adjust the first pressure to control a first flow rate of the first flow of cream after receiving the third signal.