Ventilated Packaging Container Shielding Element

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing packaging containers for bulk materials face issues with the discharge of filling materials during the filling process due to air flow, especially with finely powdered materials, leading to material loss.

Innovation Solution

A packaging container with a multilayer venting region featuring a single chamber and a shielding element that separates inner and outer openings, diverting air flow to prevent particle discharge, and using distance pieces between layers to enhance air escape without material loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If inner openings are formed as apertures in a strip-shaped surface region of the inner layer to enable venting during filling, then air can flow from inside the container into between the inner and outer layer, but filling material can be discharged from the packaging during filling or pressing operations

Engineering Contradiction:

Improveventing functionVSAvoidfilling material discharge

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

A shielding element is introduced as an intermediary component between the inner layer with apertures and the outer layer. This shielding element acts as a mediator that allows air to pass through while blocking filling material particles, thus resolving the contradiction between enabling venting and preventing material discharge

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The venting region is segmented into multiple functional layers: an inner layer with apertures for air intake, a shielding element that segments the flow path to divert material, and an outer layer with an outer opening for air exit. This segmentation allows each layer to perform its specific function while working together to solve the contradiction

Inventive Principle:

Principle #1Segmentation

2Reliability

If a multilayer venting region with inner and outer layers is used to ensure safe venting, then air flow is enabled, but the structure becomes more complex

Engineering Contradiction:

Improvesafe ventingVSAvoidventing region structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The shielding element is merged with the existing inner and outer layers of the venting region, integrating the particle protection function into the existing air flow path structure. This merging approach enables safe venting without adding a completely separate complex subsystem

Inventive Principle:

Principle #5Merging (Combining)

3Productivity

If the surface region with apertures extends over the entire height of the venting region to ensure complete venting, then air flow is maximized, but material discharge risk increases

Engineering Contradiction:

Improveair flow rateVSAvoidfilling material discharge

Core Design Contradiction:

ProductivityVSLoss of substance

Solution Approach 1:

The shielding element serves as a mediator that can be positioned strategically within the venting region to block material particles while allowing air to pass. This mediator enables the aperture surface region to extend over the entire height for maximum air flow without proportionally increasing material discharge risk

Inventive Principle:

Principle #24Intermediary (Mediator)

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 significantly reduces material discharge during filling and venting, ensuring minimal particle carryover in the air flow and allowing for efficient and safe packaging construction with material savings.

Implementation Method 1

for the deliberate diversion of at least a partial flow of the air flow passing through the venting region

Methodology Applied

Scientific EffectAir flow: Convection

Data Source

PatentUS9156591B2Packaging container that can be ventilated

Publication Date: 2015.10.13 NORDFOLIEN

AI summary

A particularly simple construction is intended for a packaging container for bulk material, in particular a sack or bag made of a plastic film with at least one container wall which encloses the bulk material, which comprises a multilayer venting region extending in the longitudinal direction of the container and consisting of at least one inner layer and one outer layer, wherein the venting region has at least one inner and outer opening, wherein the inner openings are designed as apertures in a strip-shaped surface region of the inner layer of the venting region, wherein the surface region extends over at least a portion of the direction of extent of the venting region, and wherein the at least one outer opening is formed in a joining seam laterally limiting the venting region, wherein a shielding element inside the venting region is associated with the outer opening in the joining seam for the deliberate diversion of at least a partial flow of the air flow passing through the venting region. This is achieved as a result of the venting region having just one chamber in which the shielding element separates the inner and outer openings from each other and the shielding element has a length that is between 10% and 50% of the overall length of the venting region.