Stovetop Espresso Water Feed Layout for Consistent Extraction
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Solution Overview
Problem
The existing stove top espresso machines, such as the ATOMIC, face challenges including complex and expensive unitary bodies, difficulty in assembly and repair, inconsistent water supply to the coffee grounds reservoir, risk of boiling water continuing to be supplied until dry, lack of regulation in water supply, and unsafe handling due to loose threads, making them unsuitable for mass production and difficult to use for producing consistent espresso quality.
Innovation Solution
A stove top device with separate and easily attachable and detachable components, including a coffee grounds reservoir, a water reservoir with a lid, and conduits that control water flow and steam distribution, featuring a steam separating chamber and ergonomic design for improved usability and manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a unitary body design is used, then structural integrity is improved, but manufacturing cost and complexity increase
Solution Approach 1:
The device is divided into separate modular components including a removable water reservoir, coffee grounds reservoir, head assembly, and body. This segmentation allows each component to be manufactured independently using simpler processes while maintaining overall structural integrity through designed connection interfaces.
2Strength
If a unitary body design is used, then structural integrity is improved, but ease of repair worsens
Solution Approach 1:
The modular design with removable components (water reservoir, coffee grounds reservoir, head assembly) enables easy disassembly and access to internal parts for repair and maintenance, while the connection interfaces maintain structural integrity when assembled.
Solution Approach 2:
The water reservoir and coffee grounds reservoir are designed as removable components that can be easily taken out for cleaning, replacement, or repair without disassembling the entire device, significantly improving ease of maintenance.
3Device complexity
If no water level control is implemented, then device simplicity is improved, but espresso quality consistency worsens
Solution Approach 1:
The inlet to the first conduit is positioned at a specific height above the base of the water reservoir, establishing a predetermined maximum water level before brewing begins. This preliminary design feature ensures consistent water quantity for brewing without requiring complex active control systems.
Solution Approach 2:
The device uses passive water level control through conduit inlet positioning and steam separating chamber design, allowing the system to self-regulate water flow without external control mechanisms, maintaining both simplicity and consistency.
4Productivity
If the inlet is at the base level, then water flow efficiency is improved, but water continues to supply until dry worsening safety
Solution Approach 1:
The inlet to the first conduit is positioned at a specific height above the base of the water reservoir, establishing a predetermined maximum water level before brewing begins. This preliminary design feature ensures consistent water quantity for brewing without requiring complex active control systems.
Solution Approach 2:
The device uses passive water level control through conduit inlet positioning and steam separating chamber design, allowing the system to self-regulate water flow without external control mechanisms, maintaining both simplicity and consistency.
5Strength
If a welded female fitting is used, then connection strength is improved, but ease of repair worsens
Solution Approach 1:
The head assembly is designed as a separate removable component from the body, with connection interfaces that allow easy assembly and disassembly. This segmentation eliminates the need for welding while maintaining connection strength through properly designed mechanical interfaces.
6Ease of manufacture
If threaded carry point is used, then ease of manufacture is improved, but safety worsens due to loose threads
Solution Approach 1:
The carry point is integrated as part of the handle assembly rather than being a separate threaded component. This integration eliminates the threading issue while maintaining ease of manufacture through integral forming processes.
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 device ensures consistent espresso quality by controlling water supply, reducing energy consumption and manufacturing costs, and enhancing user safety and ergonomics, making it suitable for mass production and easier maintenance.
Implementation Method 1
a first conduit having a first end in fluid communication with the water reservoir at a level above the base and below the recommended filling level and a second end in fluid communication with the coffee grounds reservoir; wherein, in use, heated water is only communicated from the water reservoir to the coffee grounds reservoir until the water level in the water reservoir falls below the first end
Implementation Method 2
The first conduit is preferably in fluid communication with the second conduit, via an orifice of smaller internal diameter than the internal diameters of the first and second conduits. The device preferably includes a steam separating chamber in the first conduit.
Implementation Method 3
Stove top device for making espresso coffee... suitable for use with stove tops that have, including but not limited to, gas burners, electric hotplates and induction hotplates
Data Source
AI summary
A stove top device (10) for making espresso coffee. The device (10) comprises a coffee grounds reservoir (22), a water reservoir (28) and a first conduit (36). The water reservoir (22) has a base and a volume defined by a recommended filling level. The first conduit (36) has a first end in fluid communication with the water reservoir (28) at a level above the base and below the recommended filling level and a second end in fluid communication with the coffee grounds reservoir (22). In use, heated water is only communicated from the water reservoir (28) to the coffee grounds reservoir (22) until the water level in the water reservoir (28) falls below the first end.