Machine for brewing a beverage such as coffee and related method
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Solution Overview
Problem
The French press coffee brewing technique is time-consuming and difficult to control for large-scale coffee production, leading to variations in taste due to manual adjustment of parameters like grind size, water temperature, and brew time, making it unsuitable for establishments serving significant amounts of coffee.
Innovation Solution
A machine with a chamber and piston assembly that automates the brewing process, allowing precise control of brewing parameters such as water temperature and coffee-to-water ratio, and includes features like a flow meter, water-reservoir-and-heating unit, and a controller to ensure uniform taste and quick brewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual French press brewing is used, then the brewing process is simple and equipment is minimal, but the brewing time is long and productivity is low
Solution Approach 1:
The patent replaces manual mechanical operations with automated systems. A microprocessor controller automatically controls water temperature, brewing time, and piston movement, eliminating the need for manual monitoring and adjustment while significantly reducing brewing time and increasing productivity.
Solution Approach 2:
The brewing system performs self-service through automated functions. The microprocessor controller manages the entire brewing process including heating water to precise temperatures, maintaining brew time, operating the piston for filtration, and even initiating cleaning cycles, thereby eliminating the need for continuous human intervention.
2Ease of manufacture
If manual French press brewing is used, then equipment is simple and easy to clean, but taste consistency varies from cup to cup
Solution Approach 1:
The system incorporates feedback mechanisms through temperature sensors and flow meters that continuously monitor water temperature and flow rate. This feedback is fed back to the microprocessor controller, which adjusts heating elements and water flow to maintain precise brewing parameters, ensuring consistent taste across multiple cups while keeping the overall equipment design relatively simple.
Solution Approach 2:
The patent implements precise control of brewing parameters including water temperature (maintained within specific ranges), brew time (automatically timed), and water-to-coffee ratio (controlled by flow meter). These parameter changes are precisely managed by the microprocessor controller to ensure uniform taste, while the basic mechanical structure remains simple and easy to manufacture.
3Device complexity
If manual timing and parameter control is used, then equipment is minimal, but brew time precision is insufficient
Solution Approach 1:
Manual timing and parameter control are replaced with electronic automation. The microprocessor controller uses electronic timers to precisely control brew time, temperature sensors to monitor water temperature, and flow meters to measure water flow, thereby achieving high measurement precision without adding significant complexity to the overall system.
4Device complexity
If French press brewing is used for large volumes, then equipment is simple, but time consumption increases significantly
Solution Approach 1:
The automated system enables continuous operation by eliminating idle time between brewing steps. The microprocessor controller coordinates water heating, brewing, filtration, and cleaning in a continuous sequence without manual intervention delays. The system can also brew multiple cups simultaneously or in rapid succession, significantly reducing total time loss while maintaining the basic French press structural simplicity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The machine produces consistently flavored coffee faster than manual methods, suitable for large-scale use, allowing for customization and quick cleaning, and ensures freshness by brewing coffee to order.
Implementation Method 1
a water-reservoir-and-heating unit operable to heat water to a controlled temperature
Implementation Method 2
The piston assembly is operable to filter coffee grounds from brewed coffee by moving in a first direction
Implementation Method 3
to force the filtered coffee out of the chamber by moving in a second direction
Data Source
AI summary
An embodiment of a machine for brewing a beverage such as coffee includes a chamber and a piston assembly disposed in the chamber. The chamber is operable to receive a liquid such as water and a flavor base such as ground coffee, and to allow the beverage to brew from a mixture of the liquid and the base. The piston assembly is operable to filter a solid such as spent coffee grounds from the brewed beverage by moving in a first direction, and to force the filtered beverage out of the chamber by moving in a second direction. By modifying or automating some or all steps of the French press brewing technique, such a machine may control one or more of the brewing parameters with a level of precision that yields brewed coffee having a uniform taste from cup to cup. Furthermore, such a machine may brew the coffee with a speed that renders the machine suitable for use by establishments that serve significant amounts of coffee.