Liner Crimp Device With Frangible Bridges And Dual-Function Cover

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Solution Overview

Problem

Existing crimping devices for liner films are complex, require multiple components, and do not provide a simple and effective method for sealing the liner opening.

Innovation Solution

A crimping device comprising a socket with top and bottom components linked by a frangible bridge, a plug with top and bottom components linked by another frangible bridge, and a cover that slides over the socket to cover the crimped area, with dual-purpose tines for prising open the socket limbs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing crimping devices are used, then liner film sealing is achieved, but device complexity increases and more components are required

Engineering Contradiction:
Improvesealing effectivenessVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple functions into a single integrated device. The socket and plug components are merged with the cover to form a unified crimping assembly that seals liner films without requiring separate sealing and opening tools. The cover itself becomes part of the crimping mechanism, reducing the total component count while maintaining sealing reliability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cover is designed with dual functionality: it serves as both a protective cover for the socket and as an opening tool with integrated tines. This multi-functionality eliminates the need for separate opening tools, reducing device complexity while maintaining effective sealing through the integrated crimping action of the socket and plug components.

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

2Reliability

If existing crimping devices are used, then liner film sealing is achieved, but ease of operation deteriorates

Engineering Contradiction:
Improvesealing effectivenessVSAvoidsimplicity of use
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The device enables self-service operation where the cover can be used to open the crimped liner film without requiring additional specialized tools. The integrated tines on the cover allow the user to prise open the socket limbs and remove the crimped film directly through the cover mechanism, simplifying the overall operation while maintaining reliable sealing during the crimping process.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If frangible bridges are used to separate socket and plug components, then ease of operation improves, but device complexity increases

Engineering Contradiction:
Improvecomponent separationVSAvoidstructural complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The socket and plug are divided into separable top and bottom components linked by frangible bridges. This segmentation allows the components to be easily separated after crimping by breaking the bridges, enabling convenient removal of the crimped film. The modular segmented structure, while adding some structural complexity, significantly improves operational ease and facilitates clean separation of components.

Inventive Principle:
Principle #1Segmentation

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 simple, efficient, and effective method for crimping and sealing liner films, requiring fewer components and allowing for easy opening and removal of the crimped film without additional tools.

Implementation Method 1

a plug having top and bottom components linked by a frangible bridge and being configured to fit between the socket limbs with a friction fit in a movement from proximal at an open end of the socket to distal when inserted in the socket

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS12304684B2Liner crimp device
Publication Date: 2025.05.20 CONTAINMENT SERVICE PROVIDERS CO LTD
  • US12304684B2 patent drawing
  • US12304684B2 patent drawing
  • US12304684B2 patent drawing

AI summary

A bag film crimping device has a socket having top and bottom components joined by a bridge. Each socket component has a pair of opposed limbs, and each limb having inwardly directed teeth. A plug fits between the limbs with a friction fit in a movement from proximal to distal, and it has outwardly directed teeth for engagement with the teeth of the socket. A cover slide over the socket to cover a space at a distal end between the limbs when the socket and plug components have been separated after crimping. The cover includes has tines for prising a socket limb from the plug as the cover is pressed distally after it has previously been used to cover exposed edges of film after crimping and the top and bottom components have been separated.