Reusable Container Sealing Tie Without Destructive Modification

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Solution Overview

Problem

Existing container sealing solutions are limited by size constraints, require destructive modifications, or pose environmental risks due to incineration, and lack the ability to be reused safely and non-destructively.

Innovation Solution

A tie system comprising a coupling head, fastening head, and serrated tongue made of polymeric material, allowing secure and reusable sealing of containers without modification, using a serrated tongue to lock the cover to the container body, and a detachable fastening head for easy opening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If external sealing elements are applied to seal the container, then the sealing capability is improved, but the container structure is modified destructively requiring holes to be drilled

Engineering Contradiction:
Improvesealing capabilityVSAvoidcontainer structure modification
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent introduces a tie as an intermediary element that connects the cover to the cup-shaped body without requiring modifications to either component. The tie passes through the opening in the cover and secures to the external surface of the cup-shaped body, providing sealing functionality while preserving the integrity of the original container structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If covers and cup-shaped bodies are fitted to seal each other permanently, then the sealing reliability is improved, but the containers cannot be opened and reused

Engineering Contradiction:
Improvesealing reliabilityVSAvoidcontainer reusability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent employs a dynamic sealing system where the tie can be easily attached and detached. The cover features an opening that allows the tie to pass through and secure temporarily, enabling the container to be sealed for transport and then easily opened for reuse by simply removing the tie, thus providing both sealing reliability and operational flexibility.

Inventive Principle:
Principle #15Dynamics

3Reliability

If disposable containers are used to ensure safety during transport, then the safety is improved, but environmental pollution increases due to incineration

Engineering Contradiction:
Improvetransport safetyVSAvoidenvironmental pollution
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent implements a system where only the tie (a simple, inexpensive element) is discarded after use, while the valuable container components (cover and cup-shaped body) are recovered and reused. This approach maintains transport safety through proper sealing while dramatically reducing waste and environmental pollution compared to disposable container systems.

Inventive Principle:
Principle #34Discarding and recovering

4Adaptability or versatility

If a tie system is applied to any type of container, then the adaptability is improved, but the device complexity increases

Engineering Contradiction:
Improvecontainer compatibilityVSAvoidsealing system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent designs a universal tie system that can be applied to various container types through simple configuration variations. The basic tie structure remains consistent, but the opening in the cover and attachment method on the cup-shaped body can be adapted to different container shapes and sizes, providing high adaptability without significantly increasing overall system complexity.

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

Data Source

PatentEP4682075A1Tie, kit and method for a sealed container
Publication Date: 2026.01.21 ISI PLAST
  • EP4682075A1 patent drawingFigure 1~2
  • EP4682075A1 patent drawingFigure 3
  • EP4682075A1 patent drawingFigure 4

AI summary

Tie, kit (29) and method for obtaining a sealed container (30; 30'); the tie (1) having a coupling head (2), a fastening head (3) and a tongue (4) having a serrated portion (14); the tongue (4) being connected to the coupling head (2); wherein the coupling head (2) has a first seat (6) for housing a first portion (35', 34) of a container (30; 30') and the fastening head (3) has a second seat (21) for housing a second portion of the container (30; 30'); wherein the fastening head (3) is configured to be passed through by the serrated portion (14) of the tongue (4) and to snap into said serrated portion (14).