Mini-Hopper Backflow Regulator for Folded Planter Wings

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Solution Overview

Problem

Seed drainage from mini-hoppers on planter wings occurs when the wings are folded up, leading to inefficiencies and material loss during transportation.

Innovation Solution

Implementation of backflow preventers, such as elastomeric members, elastomeric sheet materials, and flap gates, to control seed flow within mini-hoppers, preventing seeds from draining out during transport.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If mini-hoppers are installed on planter wings, then seed storage capacity is improved, but seed drainage occurs when wings are folded up

Engineering Contradiction:
Improveseed storage capacityVSAvoidseed drainage
Core Design Contradiction:
Quantity of substanceVSLoss of substance

Solution Approach 1:

A one-way valve is introduced as an intermediary component between the mini-hopper and the supply line. This valve allows seed to flow from the mini-hopper to the supply line during normal operation but prevents reverse flow when the wing is folded up, thus solving the seed drainage problem while maintaining seed storage capacity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The problematic reverse flow path is extracted and blocked by the one-way valve mechanism. The valve selectively closes the passage from the mini-hopper to the supply line when folding occurs, separating the storage function from the drainage issue

Inventive Principle:
Principle #2Taking out (Extraction)

2Length of moving object

If wings are folded up to reduce planter width, then transportation capability is improved, but seeds drain back into supply lines

Engineering Contradiction:
Improveplanter widthVSAvoidseed loss
Core Design Contradiction:
Length of moving objectVSLoss of substance

Solution Approach 1:

The one-way valve serves as a mediator that enables the wing folding operation to proceed without causing seed loss. It intercepts the gravitational flow of seeds during folding and redirects them back into the mini-hopper, allowing the planter to be transported in a compact configuration

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If backflow preventers are added to mini-hoppers, then seed containment is improved, but device complexity increases

Engineering Contradiction:
Improveseed containmentVSAvoidmini-hopper structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The one-way valve is designed as a simple, inexpensive component that can be easily installed in the mini-hopper. Its straightforward construction with minimal moving parts provides reliable seed containment without significantly increasing the overall device complexity

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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

Effectively prevents seed loss during transportation by maintaining seed containment within mini-hoppers, ensuring consistent seed delivery and reducing material waste.

Implementation Method 1

an elastomeric member that prevents flow from the mini-hopper to the supply line

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a flap gate that prevents flow from the mini-hopper to the supply line when the wing is folded up

Methodology Applied
Scientific EffectGravitation: Gravitation

Data Source

PatentUS12568875B2Seed flow regulator
Publication Date: 2026.03.10 PRECISION PLANTING LLC
  • US12568875B2 patent drawing
  • US12568875B2 patent drawing
  • US12568875B2 patent drawing

AI summary

A mini-hopper for an agricultural row unit that has a fill tube supplying material to a hopper. A backflow preventer is disposed in the fill tube or in a line to the inlet to prevent flow of material from the mini-hopper through the fill tube when the mini-hopper is in a transport position.