Beverage Cap Inflatable Member for Headspace Reduction
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Solution Overview
Problem
Large beverage containers face issues with preservation due to air exposure, leading to staleness and loss of carbonation, as existing solutions like inflatable bladders tend to leak and require impractical equipment for effective resealing.
Innovation Solution
A double-layer inflatable member within a beverage cap that expands to occupy the headspace, using a fluid-impermeable inner layer to separate air from the liquid and an elastic outer layer to expand and contract, allowing for effective resealing and pressurization of the container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If an inflatable bladder is inserted into a bottle to separate the headspace from the liquid, then the headspace can be reduced, but the bladder leaks gases and liquids over time
Solution Approach 1:
The inflatable member is divided into two separate layers: an inner fluid-impermeable layer that prevents leakage of gases and liquids, and an outer elastic layer that provides expansion and contraction functionality. This segmentation resolves the contradiction by assigning different functions to different layers, ensuring both sealing reliability and volume adjustment capability.
2Reliability
If pressurized CO2 is pumped into the headspace of the opened beverage container, then carbonation can be maintained, but expensive and impractical equipment is required
Solution Approach 1:
The cap assembly integrates a manual pump mechanism that allows the user to pump gas directly into the beverage container through the cap structure. This eliminates the need for external expensive equipment while maintaining carbonation levels, as the user can conveniently refill the container without specialized machinery.
3Ease of operation
If the beverage container is left open for consumption, then the beverage can be served, but air exposure causes staleness and loss of carbonation
Solution Approach 1:
The inflatable member is positioned and configured in advance within the cap assembly, ready to be inflated after the beverage is served. This preliminary preparation allows quick deployment to seal the headspace, minimizing the time the beverage is exposed to air while maintaining ease of access during serving.
Solution Approach 2:
The inflatable member acts as an intermediary barrier between the beverage and the air in the headspace. By inflating this intermediate structure, direct contact between air and beverage is prevented, preserving freshness while allowing the container to remain accessible for continued serving.
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 solution effectively reduces headspace, preserves the freshness of beverages by minimizing air exposure, and maintains carbonation levels in carbonated drinks by allowing for controlled pressure adjustment within the container.
Implementation Method 1
The first layer is configured to inflate in response to increased pressure from gas received from the second aperture
Implementation Method 2
The second layer is operatively coupled to the first layer such that the second layer expands upon the first layer inflating
Implementation Method 3
The first layer is configured to capture gas received by the inflatable member, thereby inflating
Data Source
AI summary
Apparatus and methods for sealing beverage containers are disclosed. In one embodiment, a beverage container cap for resealing a beverage container comprises a cap member and an inflatable member. The cap member has an interior side for sealingly coupling with an opening of a bottle. The cap member defines a pathway for selectively communicating gas through the cap member. For example, a pump can provide air through the pathway and to the interior side of the cap member. The inflatable member is configured to couple to the cap member and to expand in volume upon receiving gas from the pathway. The inflatable member includes a fluid impermeable layer and an elastic layer.