Irritant Spray Device Automatic Gas Rinsing Mechanism
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Solution Overview
Problem
Existing irritant spray devices lack reliable self-cleaning mechanisms, leading to residue buildup and potential malfunctions, which can incapacitate the device for subsequent use and cause unintended irritation.
Innovation Solution
An irritant spray device with a built-in automatic rinsing mechanism that uses gas to clear residues from the dispensing nozzle after use, allowing for immediate readiness for the next discharge, featuring adjustable rinsing duration and integrated pressure sources for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no cleaning mechanism is provided, then the device structure remains simple, but irritant residue builds up in the dispensing nozzle causing malfunctions and reduced reliability
Solution Approach 1:
The dispensing unit cleans itself automatically by passing gas through it after irritant dispensing, eliminating the need for external cleaning mechanisms or user intervention. The system uses its own resources (gas supply) to maintain its own functionality.
Solution Approach 2:
A gas flow (pneumatic system) is used to flush and clean the dispensing nozzle after irritant dispensing. The gas flow removes residue from the nozzle interior, preventing buildup and ensuring reliable operation for subsequent uses.
2Reliability
If the dispensing unit is not cleaned after use, then the device remains simple to operate, but residue dries and reduces the cross-section of the dispensing nozzle impeding future dispensing
Solution Approach 1:
The system automatically performs the cleaning action without requiring user intervention. The gas flow is initiated automatically after dispensing, and the user simply needs to activate the cleaning function through the existing control mechanism.
Solution Approach 2:
The gas flow cleaning action is performed immediately after irritant dispensing while the system is still active. This preliminary cleaning action prevents residue from drying and crystallizing in the nozzle, maintaining optimal dispensing cross-section for subsequent uses.
3Reliability
If manual cleaning is required, then the device structure remains simple, but the user must intervene to prevent residue buildup and malfunctions
Solution Approach 1:
The dispensing unit performs its own cleaning automatically by passing gas through it after irritant dispensing, eliminating the need for external cleaning mechanisms or user intervention. The system uses its own resources (gas supply) to maintain its own functionality.
Solution Approach 2:
A gas flow (pneumatic system) is used to flush and clean the dispensing nozzle after irritant dispensing. The gas flow removes residue from the nozzle interior, preventing buildup and ensuring reliable operation for subsequent uses.
4Reliability
If gas flow is continued after irritant dispensing ends, then complete residue removal is achieved, but the device is unavailable for next use longer than necessary
Solution Approach 1:
The gas flow duration is made adjustable and dynamically optimized. The system can adapt the cleaning duration based on the specific irritant type, dispensing quantity, and operational conditions, stopping the gas flow once sufficient cleaning is achieved to minimize device unavailable time.
Solution Approach 2:
The cleaning parameters (gas flow duration, pressure, flow rate) can be adjusted and optimized for different irritant types and operating conditions. This allows the system to achieve complete residue removal while minimizing the time the device is unavailable for subsequent use.
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
Prevents residue drying and ensures the device is ready for immediate reuse by effectively removing irritant residues, reducing the risk of malfunctions and unintended irritation.
Implementation Method 1
the dispensing unit is purged with a gas, thereby removing any remaining traces of the irritant
Data Source
Figure 1
Figure 2
AI summary
Irritant spray device with a dispensing device (12) for dispensing an irritant (22), characterized in that it has a rinsing device (54) which, after the dispensing of the irritant has ceased, directs a gas through the dispensing device (12) for a period of time.