Double-Walled Drink Vessel With Detachable Outer Shells
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Solution Overview
Problem
Existing double-walled vessels for storing potable liquids require the inner container to have a specific shape for the outer container to be securely fastened, limiting versatility and ease of cleaning.
Innovation Solution
A double-walled vessel design featuring detachably interconnectable outer shells that can enclose an inner container of any shape, with a support surface for positioning and a friction-locking connection, allowing for easy detachment and reconnection, and optional seals for enhanced insulation and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the outer container uses a positive-locking connection to fasten to the inner container, then the fastening reliability is improved, but the adaptability to different inner container shapes deteriorates
Solution Approach 1:
The outer container is designed with a universal support surface that can contact and support various shapes of inner containers. The support surface can be positioned at different locations (bottom, side, or top) depending on the inner container shape, allowing the same outer container structure to adapt to multiple inner container configurations while maintaining reliable support and fastening
Solution Approach 2:
The connection between outer and inner containers transitions from a rigid positive-locking mechanism to a more flexible support-based connection. The outer container supports the inner container through gravitational force and friction on the support surface, allowing dynamic adaptation to different inner container shapes while maintaining stable fastening
2Ease of manufacture
If the outer container is designed as a single piece, then the manufacturing simplicity is improved, but the ease of cleaning deteriorates
Solution Approach 1:
The outer container is divided into multiple detachable parts (first outer container part and second outer container part) that can be separated from each other. This segmentation allows the parts to be detached for thorough cleaning of all surfaces, including areas that would be difficult to reach in a single-piece design, while still maintaining manufacturing simplicity through modular construction
3Reliability
If the inner container has a fixed shape requirement, then the fastening reliability is improved, but the versatility of the vessel system deteriorates
Solution Approach 1:
The support surface design provides universal compatibility with various inner container shapes. By allowing the support surface to contact the inner container at different positions (bottom, side, or top) and by utilizing friction and gravitational forces, the system achieves reliable fastening across diverse inner container geometries without requiring shape-specific designs
Solution Approach 2:
The system changes the fastening mechanism from shape-dependent geometric interlocking to shape-independent force-based retention. By utilizing adjustable support surface positions and friction-based holding, the system maintains reliable fastening while accommodating variations in inner container shape parameters
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 secure fastening of the outer container to the inner container independent of shape, simplifies cleaning, and provides effective insulation and protection against damage, while allowing for the use of commercially available inner containers without modification.
Implementation Method 1
the outer container is supported on the support surface which is formed by the inner container and particularly from its end face or outer surface
Implementation Method 2
The pushing and fastening procedures are possible, however, only if the inner container has a certain shape, for example, an essentially hollow cylindrical shape or a conical shape expanding from the base of the inner container
Data Source
AI summary
The present invention relates to a double-walled vessel for storing a potable liquid, particularly a hot drink such as coffee, comprising an inner container (12) that encloses a cavity (34) for receiving the liquid and that forms at least one support surface (46), and an outer container (14) which comprises at least two shells (16, 18) that are detachably interconnectable, wherein the outer container (14) at least partially encloses the inner container (12) when in the connected state, and is supported against the support surface (46) when in the connected state.