Dual-Chamber Beverage Can for Fresh Extraction on Heating
Solution Overview
Problem
Consumers face challenges in obtaining freshly brewed coffee or other beverages when away from home or without access to coffee machines, with existing solutions like instant powders or pre-cooled canned beverages failing to meet taste expectations and water availability issues.
Innovation Solution
A disposable beverage can with a side wall, base, and lid, featuring a sealed baffle separating two chambers: one for drinkable liquid and another for a filtering device containing a substance that produces the beverage upon heating, allowing for extraction or infusion of beverages like coffee, tea, or cocoa.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If instant powders soluble in water are used, then the beverage can be prepared quickly and conveniently, but the taste quality deteriorates compared to extraction or infusion
Solution Approach 1:
The beverage system is segmented into separate functional components: a filtering device containing ground coffee or other substances, a liquid chamber containing water, and a collection chamber. This segmentation allows the preservation of traditional extraction/infusion processes while maintaining portability and ease of use, as each component is pre-prepared and sealed separately.
Solution Approach 2:
The filtering device and liquid are pre-prepared and sealed in the can before use. The ground coffee is pre-measured and sealed in the filtering device, and water is pre-filled in the liquid chamber. This preliminary action eliminates the need for measuring and preparation steps at the point of use, maintaining convenience while preserving taste quality through proper sealing and protection from degradation.
2Temperature
If pre-cooled canned beverages are heated, then the beverage can be consumed warm, but the coffee taste deteriorates considerably
Solution Approach 1:
The beverage is prepared through extraction or infusion immediately before consumption rather than being pre-cooled and stored. The filtering device is sealed with a soluble or pierceable membrane that dissolves or breaks upon contact with hot water, allowing fresh extraction to occur at the moment of use. This ensures the coffee taste is preserved while achieving the desired temperature.
Solution Approach 2:
The physical state of the membrane separating the filtering device changes from intact to dissolved/pierced upon contact with hot water. This parameter change (from solid barrier to open state) allows the hot water to pass through and extract the beverage components, achieving both temperature control and taste preservation simultaneously.
3Manufacturing precision
If a filtering device is added to enable extraction and infusion, then the beverage quality improves, but the device complexity increases
Solution Approach 1:
The filtering device is merged with the can structure itself rather than being a separate component. The filtering device includes a tube that dips into the liquid chamber and an envelope containing the beverage substance, integrated into the can's architecture. This merging reduces overall device complexity while maintaining the extraction/infusion functionality.
Solution Approach 2:
The filtering device is nested within the can structure, with the envelope containing the beverage substance positioned inside the can and the tube extending into the liquid chamber. This nested arrangement allows multiple functional components to be compactly integrated without increasing external dimensions or operational complexity.
4Ease of manufacture
If the can is designed for single use after disposal, then manufacturing costs are reduced, but the ability to preserve components until use becomes more challenging
Solution Approach 1:
Different parts of the can have different sealing and preservation qualities appropriate to their function. The filtering device envelope uses a soluble or pierceable membrane for controlled release, while the liquid chamber uses a sealed closure. This local differentiation of quality allows cost-effective single-use design while maintaining reliable preservation of components until the moment of use.
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
Enables the production of freshly brewed beverages anywhere with a heat source, preserving the necessary components until use, ensuring a true coffee-like experience and flexibility in producing various beverages.
Implementation Method 1
by the effect of extraction when the water heated to a temperature close to its boiling point is passed through the ground coffee
Implementation Method 2
by infusion when a certain quantity of ground coffee is left for some minutes in water at a temperature close to its boiling point
Implementation Method 3
when the can is subjected to the action of a heat source by the user, the liquid contained in the second chamber, on attaining a temperature close to boiling point
Data Source
AI summary
The beverage can presents immediately below the lid a first chamber not initially containing beverages ready for use, but intended to receive the final beverage, the first chamber being separated by a sealed baffle from a second chamber which already contains, a drinkable liquid; the sealed baffle presenting a housing constructed to receive a filtering device provided with a tube intended to dip into the interior of the second chamber. Elements are provided to enable the consumer to dispose the filtering device in the utilization condition in which communication is established between the two chambers via the filtering device such that, when the can is subjected to the action of a heat source, the liquid contained in the lower chamber is transferred into the first chamber (38) by passing through the substance, to give rise to the formation of the beverage.