Cargo Container Aerosol Insecticide Delivery Through Cargo Gaps
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Solution Overview
Problem
Existing methods for controlling insect pests in cargo containers are cumbersome, time-consuming, and inefficient, particularly due to the use of hazardous substances like phosphine and methyl bromide, and fail to effectively treat spaces with significant depth and filled with cargo items.
Innovation Solution
An aerosol product containing an insecticide and propellant is used to jet insecticide through gaps in the container, such as between cargo items or pallets, ensuring wide distribution within the container without the need for fumigants or smoking agents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fumigants or smoking agents containing phosphine or methyl bromide are used, then high control effect is achieved, but operation complexity increases due to preparation of air supply pipe, protective suit, and other equipment
Solution Approach 1:
The patent extracts the essential function of insecticide delivery from the complex fumigation system (air supply pipes, protective equipment) and implements it through a simple aerosol spray device that can be directly applied to cargo gaps, eliminating the need for complex infrastructure while maintaining pest control effectiveness
Solution Approach 2:
The patent replaces reusable complex fumigation equipment with disposable aerosol cans that contain pre-measured insecticide formulations, simplifying the operation to a single-step spray application without requiring specialized equipment or extensive preparation
2Reliability
If fumigants or smoking agents are used, then high control effect is achieved, but treatment time increases to several days or longer
Solution Approach 1:
The patent skips the lengthy exposure period required by traditional fumigants by using aerosol-based insecticide delivery that achieves rapid pest control, reducing the treatment time from several days to a much shorter duration while maintaining high efficacy
Solution Approach 2:
The patent changes the physical state and delivery method of the insecticide from gaseous fumigants requiring long exposure times to aerosol droplets that provide rapid contact action, fundamentally altering the time-parameter of the pest control process
3Ease of operation
If household aerosol insecticide is sprayed in living space, then easy control is achieved, but it is ineffective in container spaces with significant depth and filled with cargo items
Solution Approach 1:
The patent applies local quality by directing the aerosol spray specifically into the gaps between cargo items where pests are most likely to hide, rather than uniformly spraying the entire container space, thereby concentrating the insecticide where it is most needed for effective pest control
Solution Approach 2:
The patent addresses the three-dimensional challenge of container spaces by injecting aerosol into the narrow gap dimensions between cargo items, allowing the insecticide to penetrate deep into the cargo load and reach pests in locations that would be inaccessible to conventional spraying methods
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
Insect pests can be controlled easily and quickly throughout the container, achieving high efficacy with minimal substance use and reduced operational complexity.
Implementation Method 1
preparing an aerosol product containing an insecticide and a propellant for jetting the insecticide
Implementation Method 2
jetting the insecticide from a jetting port of the aerosol product
Implementation Method 3
the insecticide jetted toward the gap in the container passes through the gap and diffuses easily toward the rear side of the container and both sides in the width direction
Data Source
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AI summary
A method for controlling insect pests in a cargo container 100 accommodating a cargo item 200 includes: preparing an aerosol product containing an insecticide and a propellant; and jetting the insecticide from a jetting port of the aerosol product, with the jetting port directed toward gaps S1 to S4 in the container 100, and closing a door of the container 100 after the jetting of the insecticide.