Filter Snapper Mechanism for Automated Contamination Cup Separation
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Solution Overview
Problem
Conventional fluid contamination detection systems require manual application of axial compressive force to separate filter ring and growth medium plate combinations, leading to operator discomfort and repetitive stress injuries due to frequent use in laboratory and manufacturing settings.
Innovation Solution
A device with a movable platform and actuating mechanism that applies an axial compressive force to break the frangible connection between the funnel's components, reducing manual effort and minimizing operator strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual axial compressive force is applied to separate the filter ring and growth medium plate from the funnel, then the frangible connection is broken and separation is achieved, but operator discomfort and repetitive stress injuries occur due to frequent use
Solution Approach 1:
The patent replaces the manual mechanical system with an automated mechanical system. A motor-driven actuator applies axial compressive force to the funnel assembly, substituting the operator's manual hand pressure with an automated mechanical force application mechanism. This eliminates the repetitive manual effort that causes operator stress injuries while maintaining the separation function.
Solution Approach 2:
The funnel assembly is designed with a frangible connection that automatically breaks when subjected to axial compressive force. The system uses the force application mechanism to trigger the self-breaking connection, allowing the filter ring and growth medium plate to separate automatically without requiring manual manipulation or additional operator intervention beyond initiating the force application.
2Ease of operation
If axial compressive force is applied to break the frangible connection, then separation of funnel components is achieved, but damage to the funnel components may occur
Solution Approach 1:
The patent controls the parameters of force application by using a motor-driven actuator with a controlled stroke length and force magnitude. The actuator applies compressive force through a defined displacement (stroke) that is sufficient to break the frangible connection but controlled enough to prevent excessive force that could damage the funnel, filter ring, or growth medium plate. This parameter control ensures clean separation without component damage.
Solution Approach 2:
The funnel assembly is pre-designed with a frangible connection specifically engineered to break at a predetermined force threshold. This preliminary design feature ensures that when the actuator applies axial compressive force, the connection breaks cleanly at the intended failure point without causing unexpected damage to other components. The frangible connection acts as a predetermined weak point that protects the rest of the assembly.
Data Source
AI summary
A device for applying an axial compressive force to a fluid contamination detection system comprising a cup joined by a frangible connection to a filter ring, the force being sufficient to break the frangible connection and collapse a portion of the ring into the cup without damaging the ring. The device includes a stop element and a platform and an actuating mechanism for reciprocally moving the platform relative to the stop element. In a first position, the distance between the platform and the stop element is greater than the axial length of the detection system when the cup and the filter ring of the funnel are connected to each other, and in a second position, the distance between the platform and the stop element is less than the axial length of the detection system when the cup and the filter ring of the funnel are connected to each other.