Container Lid Assembly for Hygienic Seal Removal

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Solution Overview

Problem

Existing container lids require manual removal of sealing members, which can be difficult due to strong bonding forces and may lead to hygiene issues, and recycling is hindered by the need to separate and handle these members separately.

Innovation Solution

A container assembly design where the sealing member is integrated with the lid, ensuring it separates automatically when the lid is removed, with greater adhesiveness to the lid than to the container inlet, allowing for easy recycling and safe storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the sealing member is strongly bonded to the container inlet to ensure sealing, then the sealing effectiveness is improved, but the removal of the sealing member becomes difficult and requires separate tools or hands-on contact with the container inlet

Engineering Contradiction:
Improvesealing effectivenessVSAvoidsealing member removal
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The sealing member is segmented into two distinct bonding interfaces: one interface with the container inlet and another with the container lid. This segmentation allows the sealing member to be selectively removed from the container inlet by breaking the lid-sealing member bond first, enabling easy removal without direct hand contact with the container inlet.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The container lid acts as an intermediary element that temporarily holds the sealing member during the sealing process. The sealing member is bonded to both the container inlet (for sealing) and the container lid (for easy removal). This intermediary structure allows the sealing member to be removed via the lid without direct contact with the container inlet, solving the hygiene and operational difficulty problems.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the sealing member is removed by hand from the container inlet, then the contents can be accessed, but hygiene problems occur due to hand contact with the container inlet

Engineering Contradiction:
Improvesealing member removalVSAvoidhygiene contamination
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The container lid serves as a hygienic intermediary that mediates the removal process. Users pull the lid (which may have a handle or tab) to remove the sealing member, rather than directly touching the container inlet. This intermediary approach maintains hygiene by preventing hand contact with the container inlet while still enabling easy sealing member removal.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The sealing member is extracted from the container inlet through the container lid structure. The lid is designed to be removable and is bonded to the sealing member, allowing the sealing member to be taken out of the container inlet indirectly via the lid, thus avoiding direct hand contact with potentially contaminated surfaces.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of manufacture

If the sealing member remains attached to the container inlet, then recycling of the container is simplified, but the sealing member may be damaged or lost during handling

Engineering Contradiction:
Improverecycling processVSAvoidsealing member integrity
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The sealing member is segmented into two bonding relationships: with the container inlet and with the container lid. This segmentation allows the sealing member to be reliably attached to the lid for protection during handling and transport, while still being easily separable from the container inlet during recycling processes.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The container lid structure provides self-service protection for the sealing member. By being bonded to the lid, the sealing member is automatically protected during lid handling and storage without requiring additional protective measures or complex recycling procedures.

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

Facilitates easy and hygienic removal of sealing members, enabling seamless recycling of both the lid and container, while maintaining content safety and compatibility with existing production lines.

Implementation Method 1

adhesiveness between the sealing member (30) and the container lid (20) is greater than adhesiveness between the container inlet (12) and the sealing member (30)

Methodology Applied
Scientific EffectAdhesiveness: Adhesive

Data Source

PatentUS12600531B2Container lid, and container assembly having same coupled thereto
Publication Date: 2026.04.14 AHN JIN HEE
  • US12600531B2 patent drawing
  • US12600531B2 patent drawing
  • US12600531B2 patent drawing

AI summary

The present invention relates to a container lid, and a container assembly having same coupled thereto and, more specifically, to a container lid coupled to a container inlet through which contents are received, and a container assembly having the container lid coupled thereto. Disclosed is a container assembly comprising: a container for receiving contents; a container lid coupled to the container inlet; and a sealing member having a bottom surface attached to an upper end of the container inlet of the container, and coupled to the container lid, wherein, when the container lid is separated from the container by means of rotation, adhesiveness between the sealing member and the container lid is greater than adhesiveness between the container inlet and the sealing member such that the sealing member is separated from the container inlet.