BEVERAGE PREPARATION MACHINE WITH CONTROL BASED ON DEFORMATION OF AN EXTRACTION HEAD FRAME STRUCTURE AND METHOD TO CONTROL THE MACHINE BASED ON SAID DEFORMATION

• Main Author: CAVANAGH, John, Patrick
• Format: Patent
• Language: English; French; German
• Published: 26.07.2023
• Subjects: APPARATUS FOR MAKING BEVERAGES; COFFEE MILLS; DOMESTIC ARTICLES OR APPLIANCES; FURNITURE; HUMAN NECESSITIES; KITCHEN EQUIPMENT; SPICE MILLS; SUCTION CLEANERS IN GENERAL

The invention concerns a beverage preparation machine (1) for preparing a beverage from a food substance contained in a capsule (13). The brewing chamber (35) comprises two chamber portions (34a, 34b, 12) relatively movable each other, means (7) being provided to apply a clamping force to said chamber portions in order to close the brewing chamber, the clamping means and at least part of the chamber portions (34a, 34b, 12) being connected to a frame structure (33) of the machine. A machine control unit (17) is also provided. The machine (1) comprises at least one sensor means (50) for sensing the deformations of at least a resilient deformable portion. The sensor means is connected to the control unit and, based on the sensed deformation of said deformable portion, carries out at least one of the following operation: controlling of a machine switching-on, a clamping means closure, a capsule presence in the brewing chamber, a fluid injection in the brewing chamber, a fluid temperature, detecting of the type of ingredient capsule amongst a set of different capsule types. Also a method to control a beverage preparation machine on the basis of the deformation of said resilient deformable portion is claimed.