Reclosable Beverage Container Sealing Lip Design

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Solution Overview

Problem

Existing reclosable beverage containers fail to provide a reliable, medium-tight seal, allowing gas exchange and carbon dioxide loss, which affects the taste and preservation of carbonated beverages, and are often complex and prone to leakage.

Innovation Solution

A device with a single multifunctional wall opening for both foodstuff passage and coupling, featuring a sealing element that engages under bias on the container wall, utilizing resilient lips and a flexible sealing strip to ensure medium-tight sealing, and a threaded connection for secure operation, reducing leakage risks and manufacturing complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a sealing element is used to close the wall opening in reclosable beverage containers, then the container becomes reclosable and content can be consumed in portions, but the sealing is only mediocre and allows gas exchange and carbon dioxide loss

Engineering Contradiction:
ImprovereclosabilityVSAvoidsealing quality
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The sealing element comprises a flexible sealing lip made of elastomeric material that can deform to conform to the container wall opening, creating a reliable medium-tight seal while maintaining reclosability through repeated opening and closing operations

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The sealing element is designed with specific material parameters (elastomeric properties) and geometric parameters (lip configuration) that enable it to maintain sealing force under varying internal pressures, including carbonation pressure, while allowing controlled opening and closing

Inventive Principle:
Principle #35Parameter changes

2Reliability

If multiple wall openings are provided in the top wall for device coupling and foodstuff passage, then the device can be securely coupled to the container, but the device becomes sensitive for leakage and reliability is reduced

Engineering Contradiction:
Improvecoupling securityVSAvoidleakage risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The device combines the coupling function and foodstuff passage function into a single integrated wall opening structure, eliminating multiple separate openings and thereby reducing leakage pathways while maintaining secure coupling capability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single wall opening serves multiple functions: it provides the passage for foodstuff removal, acts as the coupling interface for the operating element, and maintains structural integrity to prevent leakage, thereby reducing the number of components and potential failure points

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If a complex device structure is used to achieve reliable sealing of carbonated beverages, then sealing performance improves, but manufacturing costs and device complexity increase

Engineering Contradiction:
Improvesealing performanceVSAvoidconstructive complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sealing element uses a flexible lip made of elastomeric material that provides reliable sealing through its inherent flexibility and ability to conform to the opening, eliminating the need for complex mechanical sealing mechanisms while maintaining effective sealing under carbonation pressure

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The sealing element is designed to automatically engage and disengage with the wall opening through the natural flexibility of the elastomeric lip, without requiring complex actuation mechanisms, thereby simplifying the device structure while maintaining reliable sealing performance

Inventive Principle:
Principle #25Self-service

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 device provides a reliable, medium-tight seal that prevents gas exchange and carbon dioxide loss, maintaining the beverage's carbonation and taste, while being simpler, less expensive to manufacture, and more reliable than existing solutions.

Implementation Method 1

utilizing resilient lips and a flexible sealing strip to ensure medium-tight sealing

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS7823740B2Device for sealing foodstuff containers and foodstuff container provided with such a device
Publication Date: 2010.11.02 XOLUTION GERMANY GMBH
  • US7823740B2 patent drawing
  • US7823740B2 patent drawing
  • US7823740B2 patent drawing

AI summary

The invention relates to a device for sealing foodstuff containers, in particular drink containers, comprising: a sealing element adapted to engage on a wall of a foodstuff container around a wall opening arranged in the wall, and an operating element adapted to co-act with the sealing element for displacing the sealing element between an opened position leaving the wall opening clear and a closed position sealing the wall opening. The invention also relates to a foodstuff container provided with such a device.