Fluid Dispenser Inversion for Substrate Hydration

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Solution Overview

Problem

The storage life of plants in substrate bodies is uncertain due to issues like color change in UV light, mildew/fungus development, and humidity, leading to reduced sales periods and inventory losses, as existing methods for administering nutrients are inefficient and not conducive to long-term storage.

Innovation Solution

A device and method using fluid dispensers with pumps to introduce a controlled dose of fluid, such as water or hydrogel, into the substrate body through various angles and positions, ensuring uniform distribution and minimizing environmental impact, with adjustable dispensers and conveyors for efficient handling and treatment of multiple plants.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If plants are sprayed from above to provide water and nutrients, then plants receive sufficient water and nutrients, but the upper face of the substrate body becomes impermeable to water and mildew/fungus develops on the leaves

Engineering Contradiction:
Improvewater and nutrientsVSAvoidmildew/fungus development
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The invention inverts the conventional spraying direction by introducing fluid from the lower face of the substrate body upward through the root zone, rather than spraying from above. This allows water and nutrients to reach the roots without wetting the leaves, preventing mildew and fungus while maintaining substrate permeability

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The device uses the substrate body itself as an intermediary medium to transport fluid from the lower face to the root zone. The substrate acts as a controlled delivery system, distributing water and nutrients uniformly without direct contact with the leaves, thus avoiding fungal development

Inventive Principle:
Principle #24Intermediary (Mediator)

2Quantity of substance

If plants are sprayed from above to provide water and nutrients, then plants receive sufficient water and nutrients, but the environment becomes very humid which is problematic for working conditions

Engineering Contradiction:
Improvewater and nutrientsVSAvoidhigh humidity
Core Design Contradiction:
Quantity of substanceVSObject-generated harmful factors

Solution Approach 1:

The substrate body serves as an intermediary that confines water and nutrients to the root zone. By delivering fluid from below through the substrate matrix, the system prevents water from evaporating into the surrounding environment, thus maintaining low ambient humidity while ensuring adequate plant hydration

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If a fixed dose of fluid is administered to each plant, then storage life consistency is improved, but the complexity of the device increases with multiple fluid dispensers and positioning systems

Engineering Contradiction:
Improvestorage life consistencyVSAvoiddevice structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The device divides the treatment process into discrete segments: a conveyor system that positions each substrate body individually at a treatment station, and multiple fluid dispensers that operate sequentially or simultaneously on opposite sides. This segmentation allows standardized dosing while maintaining manageable device complexity through modular architecture

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fluid dispensers are designed with multi-functionality, capable of administering precise doses through different routes (lower face, upper face, or lateral faces) depending on substrate body orientation and plant requirements. This universal design reduces the need for multiple specialized devices while maintaining dosing consistency

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

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

This solution significantly extends the storage life of plants by ensuring consistent nutrient supply and reducing humidity, thereby improving working conditions and extending the sales period of plants by limiting deviations in storage life among batches.

Implementation Method 1

A device for introducing a dose of fluid into a substrate body (L) of a plant pot (P) or sowing tray comprises pressure means for introducing the dose of fluid into the substrate body (L)

Methodology Applied
Scientific EffectPressure: Pressure Increase

Data Source

PatentEP3379923B1Device for the treatment of substrate bodies
Publication Date: 2020.06.17 M STOLZE HLDG BV
  • EP3379923B1 patent drawingFigure 1A
  • EP3379923B1 patent drawingFigure 1B
  • EP3379923B1 patent drawingFigure 2A

AI summary

A device (1) for administering a fluid to substrate bodies provided with a plant, comprising a frame (2), at least one position station provided on the frame (2) for one or more substrate bodies and at least one fluid device at the position station for urging the fluid into the substrate body, wherein the fluid device comprises at least one fluid dispenser, a source (5) of fluid and a conduit (15) for fluid situated in between them, as well as pressure means (6) for supplying a dose of fluid under pressure to the fluid dispenser.