Single-Cup Coffee Brew Modules With Steam-Protected Grinder
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Solution Overview
Problem
Conventional coffee brewing systems are inefficient as they often result in coffee waste, inconsistent flavor, and require significant labor and time for cleaning and maintenance, with automated single-cup systems needing improvements in brewing time, cleaning efficiency, and coffee quality.
Innovation Solution
A system comprising multiple brew modules with doser assemblies, wiper assemblies, and pistons for rapid coffee brewing, automatic cleaning, and a fan system to prevent steam and condensation from entering the grinder, along with a baffle device to improve coffee quality and reduce maintenance labor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional batch brewing systems are used, then large batches of coffee can be brewed, but coffee waste occurs when not all coffee is consumed and flavor consistency deteriorates
Solution Approach 1:
The brewing system is divided into multiple independent brew groups (first brew group, second brew group, third brew group), each capable of brewing individual single-cup portions. This segmentation allows precise portion control and eliminates waste from unused batch coffee while maintaining the ability to serve multiple customers simultaneously.
2Loss of substance
If automated single-cup brewing systems are used, then coffee waste is reduced and freshness is improved, but brewing time increases and cleaning labor increases
Solution Approach 1:
Multiple brew groups are combined into a single integrated system sharing common components such as the hopper, grinder, and control system. This merging allows parallel brewing operations while reducing overall system footprint and enabling faster service through simultaneous preparation of multiple beverages.
Solution Approach 2:
Coffee beans are pre-stored in a large hopper and pre-ground in advance, with grounds stored in doser assemblies ready for immediate brewing. This preliminary preparation eliminates delays during the brewing process and enables rapid single-cup preparation while maintaining freshness.
3Productivity
If multiple brew modules are used to reduce brewing time, then productivity increases, but device complexity and cleaning requirements increase
Solution Approach 1:
Each brew group is designed as a universal module capable of handling multiple beverage types and sizes through programmable controls. The same hardware infrastructure (heating elements, pumps, spray heads) serves multiple functions across different brew groups, reducing overall system complexity while maintaining high productivity.
Solution Approach 2:
The system employs a hierarchical structure where individual brew groups are nested within a larger integrated system. Each brew group contains nested sub-components (doser, grinder, spray head assembly) that can be independently maintained or replaced, simplifying cleaning and maintenance procedures despite the overall system complexity.
4Temperature
If steam and condensation are allowed to enter the grinder area, then heat transfer occurs, but coffee quality deteriorates and corrosion increases
Solution Approach 1:
The grinder and hopper assembly is physically separated from the brewing chamber and positioned in a dedicated compartment isolated from steam and hot water exposure. This spatial extraction protects the grinder components and stored coffee beans from moisture-induced corrosion and quality degradation while allowing the brewing area to operate at high temperatures.
Solution Approach 2:
A baffle device or protective barrier is positioned between the brewing chamber and grinder area to intercept and redirect steam away from the grinder. This intermediary element allows the system to maintain high brewing temperatures while preventing harmful steam exposure to the grinder and stored coffee.
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 system enables quick brewing of single-cup coffee in under 30 seconds, reduces labor and waste, and maintains coffee quality by ensuring freshness and consistency, while also simplifying maintenance and cleaning processes.
Implementation Method 1
A fan is in communication with the exit port and configured to provide airflow through the exit port toward the brewing area. The fan is configured to provide substantially continuous airflow through the exit port of the grinder mechanism during normal operation to substantially prevent steam and moisture generated by the apparatus during a brew cycle from entering the grinder mechanism.
Implementation Method 2
The first interior subassembly comprises a first piston configured to raise and lower coffee grounds during a brew cycle.
Data Source
Figure 1
Figure 2
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AI summary
A system (1000) for brewing a desired portion of a beverage, such as a single-cup portion of coffee, is provided. The system may have more than one brew module (1050a, 1050b, 1050c). The system allows a user to quickly and easily brew a variety of types of single-cup portions of a beverage. In some embodiments, the system may brew a single-cup portion of coffee in a relatively short period of time based on a combination of certain parameters. The system may include an automatic cleaning mechanism such that a user does not need to manually clean components of a brewing machine between brew cycles. The system may also include apparatus (440) configured to substantially prevent steam from reaching grinder components (420) of the system. The system may also include apparatus configured to provide a precise dose of material based on, for example, volume of the material. Methods and apparatus for brewing a beverage are also disclosed.