US 12,446,723 B2
Machine for beverage preparation
Beppino Ceotto, Susegana (IT); and Andrea Zonelli, Susegana (IT)
Appl. No. 17/296,596
Filed by CMA MACCHINE PER CAFFE' S.R.L., Susegana TV (IT)
PCT Filed Dec. 3, 2019, PCT No. PCT/IB2019/060391
§ 371(c)(1), (2) Date May 25, 2021,
PCT Pub. No. WO2020/115650, PCT Pub. Date Jun. 11, 2020.
Claims priority of application No. 18209878 (EP), filed on Dec. 3, 2018.
Prior Publication US 2022/0022683 A1, Jan. 27, 2022
Int. Cl. A47J 31/36 (2006.01); A23F 5/26 (2006.01); A47J 31/06 (2006.01); A47J 31/44 (2006.01); A47J 31/52 (2006.01)
CPC A47J 31/3671 (2013.01) [A23F 5/26 (2013.01); A47J 31/0663 (2013.01); A47J 31/4467 (2013.01); A47J 31/525 (2018.08); A47J 31/5251 (2018.08); A47J 31/5253 (2018.08); A47J 31/5255 (2018.08); A47J 2202/00 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A machine for preparing an infusion beverage, comprising:
a machine body;
a filter holder removably constrained to the machine body, said filter holder comprising a seat for at least one ingredient for preparing a beverage;
a piston constrained to the machine body;
a motor adapted to relatively move said filter holder and said piston between one another, so that to couple said piston with said seat for, during use, defining an infusion chamber and compressing said at least one ingredient in said seat;
a controller configured to receive from an operator, directly or indirectly, a desired pressure value to be applied to said at least one ingredient, and to relatively move said piston and said filter holder between one another until said pressure value is reached; and
an interface that enables the operator to send data or commands to the controller,
wherein the interface is configured to display a trend of a pressure exerted by the piston on the at least one ingredient,
wherein said controller is configured to move said piston and said filter holder between one another depending on, in addition to the desired pressure value received from the operator, a pressure value and/or a flow rate of an infusion liquid supplied to said infusion chamber, and
wherein said controller is further configured to move said piston and said filter holder between one another after a deviation of said pressure value and/or said flow rate of said infusion liquid exceeds a tolerance range for a predetermined plurality of times.