Drum Vent Filter Pressure Indicator Assembly
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Solution Overview
Problem
Current drum vent filtration systems face challenges in ensuring complete evacuation of aerosol containers before removal, as it is difficult to determine if the container is fully depressurized, leading to potential premature removal and safety hazards.
Innovation Solution
A drum vent filter assembly with a pressure indicator/stop assembly, featuring a translucent check ball mechanism that indicates when the container is depressurized, ensuring safe removal and capturing harmful vapors and VOCs, while being recyclable and reusable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a drum vent filtration system is used to remove contents from aerosol containers, then harmful vapors and VOCs are captured, but it is difficult to determine whether the container has been fully evacuated, leading to potential premature removal and safety hazards
Solution Approach 1:
The patent employs a visual indicator system where a ball rises within a tube to indicate pressure status. The translucent tube allows users to visually detect the ball's position, providing clear information about whether the container has been fully evacuated. This visual feedback mechanism transforms invisible pressure information into observable visual signals, resolving the information loss problem.
Solution Approach 2:
The pressure indicator assembly provides real-time feedback to the operator about the evacuation status of the aerosol container. The ball's position within the tube continuously reflects the internal pressure state, enabling operators to make informed decisions about when removal is safe. This feedback loop eliminates uncertainty and prevents premature removal.
2Loss of information
If the drum vent filter assembly includes a pressure indicator/stop assembly with translucent tube and check ball mechanism, then pressure status can be reliably indicated, but the device complexity increases
Solution Approach 1:
The pressure indicator/stop assembly serves multiple functions: it acts as both a pressure indicator (showing when the container is evacuated) and a stop mechanism (preventing premature removal). The check ball mechanism simultaneously provides visual feedback and physical blocking capability. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity.
Solution Approach 2:
The patent combines the pressure indication function and the stop function into a single integrated assembly. The check ball mechanism that indicates pressure status also serves as the stop mechanism when it blocks the vent opening. By merging these functions into one compact assembly rather than using separate components, the increase in device complexity is minimized.
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 assembly effectively indicates when the aerosol can is safe to remove, preventing premature removal and ensuring compliance with regulations by providing a reliable pressure status indicator and stop function, while also capturing contaminants and being environmentally friendly.
Implementation Method 1
The stop assembly acts as a pressure indicator as well as a vent stop... check ball, seat member and stop member
Implementation Method 2
filtering upwardly travelling vapors with an adsorption member
Implementation Method 3
dispersing the propellant with a diffusion member
Data Source
AI summary
An apparatus and method for removal of contaminants from vented vapors having a pressure indicator/stop assembly.