Double-Wall Glass Container With Elastomeric Interlayer
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Solution Overview
Problem
Existing cosmetic product containers face challenges with material compatibility, environmental impact, weight, and aesthetics, particularly when using glass and plastic combinations, as they often result in increased height, weight, and material inefficiency.
Innovation Solution
A double-receptacle container design featuring an external and internal glass receptacle with a plastic or elastomeric intermediate element for mechanical coupling, reducing direct glass contact and optimizing the collar and ring configuration to minimize height and maximize stability, while allowing for recyclability and a more attractive design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both receptacles are made of glass, then quality perception and product compatibility are improved, but weight and production cost increase
Solution Approach 1:
An intermediate element made of plastic or elastomeric material is interposed between the internal glass receptacle and the external glass receptacle at their mutual contact portions. This intermediary element provides mechanical coupling and support while allowing the use of glass for both receptacles, thus maintaining quality perception and product compatibility without excessively increasing weight, as the intermediate element is lightweight and the collar design optimizes the support structure.
2Ease of manufacture
If the internal receptacle is supported directly on the upper face of the external receptacle neck, then assembly is simplified, but overall height and cap thickness increase
Solution Approach 1:
The support structure is modified by adding a collar with a step-like seat that creates a localized support surface. Instead of supporting the internal receptacle on the upper face of the neck (vertical dimension), the collar provides support at a specific height level through its step-like structure, distributing the support function across different vertical levels and reducing the overall height requirement while maintaining assembly simplicity.
Solution Approach 2:
The collar acts as an intermediary support structure between the external receptacle neck and the internal receptacle. The step-like seat on the collar provides a dedicated support surface that optimizes the support position, reducing the need for excessive neck height and cap thickness while maintaining stable assembly.
3Stability of the object's composition
If the intermediate element is interposed between glass receptacles, then mechanical coupling stability is improved, but device complexity increases
Solution Approach 1:
An intermediate element made of plastic or elastomeric material is interposed between the internal glass receptacle and the external glass receptacle at their mutual contact portions. This intermediary element provides mechanical coupling and support while allowing the use of glass for both receptacles, thus maintaining quality perception and product compatibility without excessively increasing weight, as the intermediate element is lightweight and the collar design optimizes the support structure.
4Length of moving object
If the collar height is reduced to improve aesthetics, then overall height and material usage are reduced, but support stability may be compromised
Solution Approach 1:
The support structure is modified by adding a collar with a step-like seat that creates a localized support surface. Instead of supporting the internal receptacle on the upper face of the neck (vertical dimension), the collar provides support at a specific height level through its step-like structure, distributing the support function across different vertical levels and reducing the overall height requirement while maintaining assembly simplicity.
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 achieves a lightweight, aesthetically pleasing, and eco-friendly container with reduced material and energy usage, ensuring stability and recyclability while maintaining the high-quality perception of glass components.
Implementation Method 1
an intermediate element made up of plastic or elastomeric material, destined to be interposed between respective, mutual contact portions of the internal receptacle and of the external receptacle
Data Source
AI summary
A container includes an external receptacle including glass and has a bottom and a side wall to define an inner cavity. An internal receptacle includes glass, is housed within the inner cavity of the external receptacle, and has a bottom and a side wall. An intermediate element, including plastic or elastomeric material, is interposed between the internal receptacle and the external receptacle. The side wall of the internal receptacle includes a ring having a free upper face and a lower contact surface. The intermediate element is interposed between the lower contact surface of the ring and a support surface on a collar at the upper end of the side wall of the external receptacle. The collar has a step-like seat open upwards and toward the inner cavity of the external receptacle and extending between an upper free face of an upper edge of the collar and the support surface.