Intertwined Rope Matrix for Continuous Seaweed Propagule Embedding

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Solution Overview

Problem

The process of attaching seaweed propagules to ropes in seaweed farming is labor-intensive and time-consuming, causing physiological stress and limiting the size of propagules that can be inserted, with conventional systems being complex and prone to damaging the ropes.

Innovation Solution

An apparatus and method involving an intertwining assembly that forms a rope matrix by braiding ropes at a point where they pass over and under each other, with a conveying device to embed propagules within the matrix, and an offtake assembly to move the matrix out, allowing for continuous mechanized attachment with minimal stress on the yarns and accommodating various propagule sizes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If seaweed propagules are manually tied to lines or ropes, then the propagules can be attached to the substrate, but the process becomes labor-intensive and time-consuming

Engineering Contradiction:

Improveattachment reliabilityVSAvoidplanting speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent replaces manual tying operations with an automated mechanical insertion system. A twisting mechanism creates openings in the rope by rotating yarns, and a conveying system automatically feeds propagules into these openings, eliminating the need for manual knot-tying while maintaining secure attachment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system performs preliminary actions by pre-twisting the rope yarns to create openings before propagule insertion. This preparation step allows for rapid sequential insertion of multiple propagules without requiring repeated manual manipulation of the rope structure.

Inventive Principle:

Principle #10Preliminary action

2Ease of manufacture

If seaweed propagules are kept outside water during attachment, then the tying process can be completed on land, but the propagules experience physiological stress resulting in lower growth

Engineering Contradiction:

Improveattachment process easeVSAvoidpropagule health

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent employs a water delivery system that introduces water to the propagules during the attachment process. This hydraulic element ensures propagules remain hydrated and healthy even while being mechanically processed on land, eliminating the need to submerge them in seawater during attachment.

Inventive Principle:

Principle #29Pneumatics and hydraulics

3Ease of operation

If rope yarns are separated to insert propagules, then propagules can be inserted into the rope, but the rope structure is stressed and potentially damaged

Engineering Contradiction:

Improvepropagule insertion easeVSAvoidrope strength

Core Design Contradiction:

Ease of operationVSStrength

Solution Approach 1:

The patent uses a dynamic twisting mechanism that temporarily rotates and separates rope yarns only at the insertion point, then allows them to return to their original configuration. This dynamic action creates temporary openings for propagule insertion without permanently compromising the rope's structural integrity.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The twisting mechanism operates periodically, creating a sequence of openings along the rope as yarns are rotated and then return to their original positions. This periodic action allows multiple propagules to be inserted sequentially while maintaining rope strength between insertion events.

Inventive Principle:

Principle #19Periodic action

4Adaptability or versatility

If the space between rope yarns is increased to insert propagules, then larger propagules can be inserted, but the rope structure is compromised and more stress is applied

Engineering Contradiction:

Improvepropagule size accommodationVSAvoidrope stress

Core Design Contradiction:

Adaptability or versatilityVSStress or pressure

Solution Approach 1:

The patent segments the rope structure by creating localized openings through yarn rotation rather than separating entire sections of the rope. This segmentation allows propagules of various sizes to be inserted into discrete openings without compromising the overall rope structure or applying excessive stress to the yarns.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12553179B2Apparatuses and methods for seaweed embedded intertwined rope matrix

Publication Date: 2026.02.17 SEA6 ENERGY PTE LTD

AI summary

An apparatus for forming a rope matrix having seaweed propagules embedded therein is provided and may include an intertwining assembly configured to intertwine at least three ropes at a braiding point to form a rope matrix. Further, the apparatus may include a conveying device configured to introduce seaweed propagules adjacent to the braiding point and to enable embedding of the seaweed propagules within the rope matrix while the rope matrix is being formed. Further, the apparatus may comprises an offtake assembly configured to move the rope matrix, with the seaweed propagules embedded therein, out of the apparatus.