Apparatus for coffee percolation

ES3073473T3Undetermined Publication Date: 2026-07-13SOCIETE DES PRODUITS NESTLE SA

Patent Information

Authority / Receiving Office: ES · ES
Patent Type: Patents
Current Assignee / Owner: SOCIETE DES PRODUITS NESTLE SA
Filing Date: 2023-06-05
Publication Date: 2026-07-13

AI Technical Summary

Technical Problem

Existing full automatic coffee machines lack the ability to optimally prepare both pressurized and filter-like coffees, with inadequate pressure adjustment and cumbersome manual handling of accessories, and complex, expensive solutions for preparing filter-like coffee.

Method used

A full automatic coffee machine with a brewing chamber and dual piston system, allowing for adjustable pressure settings and positional changes to accommodate both pressurized and filter-like coffee preparation, featuring a pressure bypass valve controlled by a motorized actuator for precise pressure adjustment.

Benefits of technology

Enables optimal preparation of both pressurized and filter-like coffees with simplified operation, eliminating the need for manual handling and reducing complexity and cost.

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Patent Text Reader

Abstract

The invention relates to a fully automatic coffee machine (100) comprising: - a brewing chamber (1), an upper piston (2), a lower piston (3) movable within said brewing chamber (1), wherein the brewing chamber and / or the upper piston are relatively movable between a first closed position configured to compact the coffee during brewing and a second closed position configured not to compact the coffee during brewing, - a pressurized hot water fluid system comprising at least a water supply (101), a water heating device (104) and a water pump (102) wherein said system is connected to the water inlet (13) of the coffee extraction unit,wherein the fluid supply system comprises a pressure bypass valve (107) downstream of the water pump and wherein the predetermined threshold pressure of the fluid dispensed by said pressure bypass valve is adjustable, and wherein the fully automatic coffee machine comprises a control system configured to: - move the brewing chamber and / or the upper piston to the first closed position or to the second position for brewing ground coffee, and - adjust the predetermined threshold pressure of the fluid dispensed by the pressure bypass valve to a first predetermined threshold pressure, respectively, to a second predetermined threshold pressure, when the brewing chamber and / or the upper piston are moved to the first closed position, respectively, to the second position.

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