Patent ID: 6915733

Claim:
A device for production of beverages wherein liquid is added to an infusion material to make the beverage, said device comprising; a tank configured for introduction of the liquid into an interior volume of said tank; a screen basket movably disposed within said tank, said screen basket configured for receipt of the infusion material; said screen basket sized with respect to said tank such that a relatively small gap is defined between said screen basket and an inside wall of said tank, said gap having dimensions such that upon movement of said screen basket within said tank, substantially all of the liquid within said tank is caused to flow through said screen basket for permeation of the liquid and infusion material; and a drive system attached to said screen basket for moving said screen basket in said tank in first and second directions, and a programmable control system configured with said drive system to automatically adjust the height of said screen basket within said tank as a function of liquid level within said tank.