Dynamic Pest Control Foam Generation for Extended Surface Dwell
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Solution Overview
Problem
Existing pest control methods, particularly chemical pesticides, face inefficiencies in application and water usage, and lack effective means to maintain pest control over extended periods without excessive chemical use.
Innovation Solution
A dynamic pest control foam generation system that integrates a variable speed pressure washer with a solute injection system to create a foam with a minimum dwell time of 5 minutes, using a surfactant to enhance insect uptake and a foaming dispensing tip to apply pest control ingredients efficiently, conserving water and preventing foam collapse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chemical pesticides are applied to control pests, then pest control effectiveness is improved, but water usage increases and application efficiency decreases
Solution Approach 1:
The patent changes the physical state parameter of the pesticide application from liquid spray to foam. This parameter change allows the same amount of active ingredient to be delivered with reduced water usage, as the foam matrix provides better adherence and longer dwell time on vertical surfaces, thereby resolving the contradiction between pest control effectiveness and water consumption
Solution Approach 2:
The patent uses a composite material system consisting of pesticide active ingredients combined with foam stabilizers and surfactants. This composite approach creates a foam formulation that maintains pest control effectiveness while reducing overall water content compared to traditional liquid spray applications
2Reliability
If chemical pesticides are applied to control pests, then pest control effectiveness is improved, but application efficiency and coverage duration decrease
Solution Approach 1:
The patent changes the application method from liquid spray to foam generation, which fundamentally alters how the pesticide is delivered and retained on surfaces. The foam structure provides extended dwell time and better coverage on vertical surfaces, thereby improving application efficiency and coverage duration while maintaining pest control effectiveness
Solution Approach 2:
The patent employs a foam generation system that uses pressurized gas injection to create foam in-line during the application process. This pneumatic approach allows for efficient delivery of the foam formulation through hoses and dispensing equipment, improving application speed and coverage area compared to traditional spray methods
3Ease of operation
If traditional spray methods are used, then application is simple, but foam stability and dwell time are insufficient
Solution Approach 1:
The patent introduces a foam generation system as an intermediary component between the pesticide reservoir and the target surface. This intermediary device converts liquid pesticide into stable foam that adheres longer to vertical surfaces, thereby extending dwell time while maintaining ease of operation through automated foam generation and delivery
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 system achieves effective pest control with reduced water usage, extended dwell time, and enhanced insect uptake, while maintaining efficiency and cleanliness of treated areas.
Implementation Method 1
a variable speed pressure washer (VSPW) may be fluidly coupled to a solvent (e.g., water) reservoir
Implementation Method 2
An output of the VSPW may, for example, be fluidly coupled to a solute injection system
Implementation Method 3
The foaming dispensing tip may, for example, foam the solution of the solvent and the solute to generate and dispense a foam solution
Implementation Method 4
Some embodiments may include a surfactant to dissolve chitin on insects to advantageously increase insect uptake of the active ingredient
Data Source
AI summary
Apparatus and associated methods relate to a topical pests control application system (PCAS). In an illustrative example, the PCAS includes a foam generation unit (FGU) receiving a mixture of an active ingredient and a solvent (e.g., water). For example, the FGU may generate a pest controlling foam at a foam generating orifice having an input aperture and an output aperture. For example, the FGU may generate a mixture of the active ingredient and the solvent. For example, the input aperture and the output aperture may be selected as a function of a hose length connected to the PCAS, the active ingredient, the input flow rate, and a predetermined pressure drop between the input aperture and the output aperture. Various embodiments may advantageously generate the pest controlling foam with a minimum dwell time of at least 5 minutes posterior to application on a surface.