Polyethylene Hydroponic Panel with Diverging Tubular Seats

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Solution Overview

Problem

Conventional hydroponic culture support devices made of polystyrene are fragile, non-recyclable, and inefficient in material usage, leading to waste and increased costs, while existing polymeric solutions are not optimally configured for seed planting and root development, and lack reusability and stacking capabilities.

Innovation Solution

A hydroponic culture support device comprising a polymeric panel with elongated tubular elements having a semicircular cross-section and diverging side walls, optimized for seed placement and root growth, allowing mechanical operation and reusability, and designed for modular stacking and recyclability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If polystyrene panels are used for hydroponic cultivation, then the panels provide buoyancy and support structure, but the panels are structurally fragile and break during handling

Engineering Contradiction:
Improvestructural strengthVSAvoidhandling reliability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The patent uses polyethylene, a polymeric material that combines buoyancy with high structural strength and flexibility. This material choice resolves the contradiction by providing both the required structural integrity to prevent breakage during handling and the buoyancy necessary for hydroponic cultivation, unlike fragile polystyrene panels.

Inventive Principle:
Principle #40Composite materials

2Quantity of substance

If polystyrene panels are used, then the panels are inexpensive and provide buoyancy, but they absorb culture liquid and allow bacteria and mold to proliferate

Engineering Contradiction:
Improvematerial costVSAvoidbacterial contamination
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent changes the material parameter from polystyrene to polyethylene, which has different surface properties that do not absorb culture liquid. This parameter change eliminates the harmful effect of bacterial and mold proliferation while maintaining buoyancy and structural integrity, and the material remains cost-effective.

Inventive Principle:
Principle #35Parameter changes

3Strength

If conventional polystyrene panels are used, then the panels provide support structure, but they are not recyclable and increase disposal costs

Engineering Contradiction:
Improvestructural supportVSAvoidrecyclability
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The patent employs polyethylene material that is recyclable, allowing the panels to be recovered and reused after cultivation cycles. This resolves the contradiction by enabling both structural support functionality and environmental sustainability through recycling, eliminating disposal costs associated with non-recyclable polystyrene.

Inventive Principle:
Principle #34Discarding and recovering

4Volume of moving object

If V-shaped seats with large volume are provided in the panel, then the seats accommodate substrate and seedlings, but excessive inert material is wasted

Engineering Contradiction:
Improveseat volumeVSAvoidinert material waste
Core Design Contradiction:
Volume of moving objectVSLoss of substance

Solution Approach 1:

The patent optimizes the seat geometry parameters to match the actual volume requirements for substrate and seedling development. By adjusting the seat dimensions and shape, the design provides sufficient space for cultivation while minimizing excess volume that would waste inert materials like perlite, thereby reducing material costs.

Inventive Principle:
Principle #35Parameter changes

5Shape

If V-shaped seats with undercuts are provided, then the seats are formed by convergent arched walls, but the configuration is not optimal for mechanical operations

Engineering Contradiction:
Improveseat geometryVSAvoidmechanical operation ease
Core Design Contradiction:
ShapeVSEase of operation

Solution Approach 1:

The patent employs asymmetric seat geometry with optimized wall angles and profiles that facilitate mechanical operations. The seat shape is designed to allow easy filling with inert material, efficient seed positioning, and simple plant extraction, while maintaining structural integrity. This asymmetric design improves operational ease compared to conventional symmetric V-shaped seats.

Inventive Principle:
Principle #4Asymmetry

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 reduces waste and material costs, facilitates mechanical operations, and enables efficient seedling growth and disinfection, while being recyclable and stackable, thus improving economic and environmental sustainability.

Implementation Method 1

a substantially parallelepiped-shaped panel... configured so as to float on a culture liquid

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Data Source

PatentEP3308638B1Improved support device for hydroponic cultivation
Publication Date: 2020.01.29 RO PLAST
  • EP3308638B1 patent drawingFigure 1
  • EP3308638B1 patent drawingFigure 2
  • EP3308638B1 patent drawingFigure 3

AI summary

The present invention relates to a support device (1) for hydroponic cultures formed of a panel made of polymeric material comprising a plurality of separate and distinct hollow tubular elements (2) arranged side-by-side and spaced apart in parallel so as to create a plurality of seats (20) suitable to contain an inert substrate for hydroponic cultures, each defined between two adjacent tubular elements (2) and extending between an upper opening (21) and a lower opening (22). In particular, said tubular elements (2) each have a shaped cross-section, defined by a curved top portion (2A) and a pair of flat and inclined side walls (2B) extending symmetrically with respect to a vertical axis (X-X) and diverging towards the outside, such that said seats (20) have a substantially "funnel-shaped" section.