Expandable Infusion Packet Dynamics for Compact Packaging

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Solution Overview

Problem

Conventional three-dimensional infusion packets require more space for packaging due to their expanded state, limiting efficient storage and handling, while their flattened formats for packing are restricted to a limited number of configurations.

Innovation Solution

Development of expandable infusion packets that remain in a permanently compressed state until immersed in water, converting rapidly to a three-dimensional shape, allowing for efficient packaging and maintaining infusion performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If three-dimensional infusion packets are used to improve infusion performance, then the infusible material has more room to move, but the packets occupy larger volume and cannot be packaged efficiently

Engineering Contradiction:
Improveinfusion performanceVSAvoidpackaging volume
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

The infusion packet employs a dynamic structure that transitions from a compressed flat state during packaging to an expanded three-dimensional state during use. The gusseted construction allows the packet to dynamically change its volume and shape, enabling efficient packaging while maintaining superior infusion performance when deployed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The infusion packet can be nested in a compressed flat configuration within the packaging, similar to how smaller objects fit inside larger ones. When in use, the packet expands outward from this nested state, maximizing space efficiency during storage while providing full three-dimensional volume during the infusion process.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Volume of stationary object

If flattened configuration is used to achieve compact packaging, then the packets can be packaged more efficiently, but the number of possible configurations is very limited

Engineering Contradiction:
Improvepackaging volumeVSAvoidconfiguration flexibility
Core Design Contradiction:
Volume of stationary objectVSAdaptability or versatility

Solution Approach 1:

The packet is segmented into multiple gusseted panels that can be folded and configured in various ways. This segmentation allows the same packet structure to be flattened for packaging while maintaining the capability to expand into different three-dimensional configurations during use, thereby increasing configuration flexibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The packet structure utilizes changeable geometric parameters through its gusseted design. The same basic structure can be manufactured with different dimensions, gusset angles, and panel configurations, allowing versatility in both packaging formats and expanded states without requiring fundamentally different designs.

Inventive Principle:
Principle #35Parameter changes

3Volume of stationary object

If conventional flat infusion packets are used, then the packets can be packaged efficiently, but the infusion performance is limited due to restricted movement of infusible material

Engineering Contradiction:
Improvepackaging volumeVSAvoidinfusion performance
Core Design Contradiction:
Volume of stationary objectVSReliability

Solution Approach 1:

The packet transitions from a static flat configuration during packaging to a dynamic three-dimensional expanded state during infusion. This dynamic transformation allows the packet to provide ample room for infusible material movement when needed, while maintaining compact packaging dimensions when stored.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The packet utilizes dimensional transformation by collapsing the three-dimensional structure into a two-dimensional flat configuration for packaging, then expanding back to three-dimensional form during use. This dimensionality change enables efficient packaging while preserving the volume necessary for superior infusion performance.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3414188B1Infusion packets
Publication Date: 2019.10.30 UNILEVER PLC
  • EP3414188B1 patent drawingFigure 1a~3c
  • EP3414188B1 patent drawingFigure 4a~5b
  • EP3414188B1 patent drawingFigure 6~8

AI summary

The present invention relates to an expandable infusion packet (1, 5), wherein the infusion packet is in a permanently compressed state in the absence of water and converts to an expanded state in the presence of water.