Three-Layered Insulated Cup With Segmented Middle Blank
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Solution Overview
Problem
Current disposable cups, such as polystyrene, expanded polystyrene, and single-wall paper cups, face issues with thermal insulation, environmental sustainability, and manufacturing costs, with polystyrene cups being aesthetically poor insulators and environmentally unfriendly, expanded polystyrene cups being costly to print on and banned in some areas, and paper cups being fragile and inefficient thermally.
Innovation Solution
A thermally insulated container design featuring an inner layer, an outer layer, and a middle insulating layer with apertures, where the middle layer is divided into multiple blanks to reduce material usage while maintaining insulation efficiency, and the layers are stacked and sealed to form a multi-layered arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If expanded polystyrene is used for cup construction, then thermal insulation performance is improved, but environmental sustainability deteriorates
Solution Approach 1:
The patent uses a composite structure combining paperboard (inner and outer layers) with an insulating middle layer, creating a multi-material construction that achieves thermal insulation performance comparable to expanded polystyrene while using environmentally friendly, biodegradable materials. The composite approach allows each layer to contribute its strengths: paperboard provides structural integrity and the middle layer provides insulation.
2Temperature
If multi-layered cup construction is used, then thermal insulation and strength are improved, but manufacturing cost increases
Solution Approach 1:
The insulating middle layer is divided into multiple separate blanks rather than using a single continuous layer. This segmentation allows for more efficient material utilization, reduces waste, and simplifies the manufacturing process. The divided blanks can be independently formed and then assembled, reducing overall manufacturing complexity and cost while maintaining insulation effectiveness.
Solution Approach 2:
The insulating middle layer uses a porous material structure that provides effective thermal insulation with reduced material density and quantity. The porous structure traps air pockets that inhibit heat transfer, allowing the cup to achieve good insulation performance with less material, thereby reducing manufacturing costs.
3Ease of manufacture
If single-wall paper cup construction is used, then material cost is reduced, but thermal insulation performance deteriorates
Solution Approach 1:
The patent creates a composite structure with distinct inner, middle, and outer layers, where the middle layer is specifically designed for thermal insulation. This composite approach maintains the cost-effectiveness of paperboard materials while adding targeted insulation functionality that single-wall cups lack.
Solution Approach 2:
The insulating middle layer employs porous material with air-trapping structure that provides effective thermal barrier properties. This porous structure achieves good insulation performance with relatively thin material, keeping the overall cup thickness and material cost reasonable while significantly improving thermal insulation compared to single-wall construction.
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 provides effective thermal insulation, reduces material costs, and enhances handling comfort while being environmentally friendly and recyclable, addressing the drawbacks of existing cup materials.
Implementation Method 1
an insulating middle layer sandwiched between the inner layer and the outer layer
Data Source
AI summary
A thermally insulated container is disclosed. The container comprises an inner layer having a bottom portion with a bottom closure attached to the bottom portion. The container further comprises an outer layer wrapped around the inner layer. The container further comprises an insulating middle layer sandwiched between the inner layer and the outer layer. The middle layer has at least one aperture formed therein.