Closed Transfer Coupler With Movable Probe for Leak-Free Chemical Handling
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Solution Overview
Problem
Existing closed transfer systems for hazardous chemicals lack effective mechanisms to prevent spills and leaks during transfer, posing safety and regulatory challenges due to the need for precise control and cleaning processes.
Innovation Solution
A coupler system with a movable probe and cam locking mechanism that selectively engages and secures containers, allowing controlled fluid transfer and integration with a rinsing system for cleaning, ensuring safe and efficient handling of chemicals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a closed transfer system is used to transport hazardous chemicals, then spills and leaks are prevented, but the system complexity increases due to the need for secure engagement and controlled transfer mechanisms
Solution Approach 1:
The probe is made movable relative to the container, transitioning between a first position (engaged with the container) and a second position (disengaged). This dynamic configuration allows the system to adapt between secure engagement for spill prevention and disengagement for container removal, resolving the contradiction between reliability and complexity.
Solution Approach 2:
The coupler is divided into distinct functional components: a body, a movable probe, and a locking mechanism. Each component performs a specific function (fluid transfer, position control, secure engagement), allowing the complex system to be managed through modular, independent elements that collectively achieve spill prevention.
2Ease of operation
If a movable probe mechanism is added to control fluid flow, then selective fluid transfer is achieved, but the device complexity increases
Solution Approach 1:
The probe's movement is directly coupled to fluid flow control through its position within the coupler body. When the probe moves to the first position, it automatically establishes fluid communication; when moved to the second position, fluid flow is automatically restricted. This self-service mechanism eliminates the need for separate control valves or complex actuation systems.
3Reliability
If a locking mechanism is integrated to secure the container, then spill prevention is enhanced, but the ease of operation for container engagement decreases
Solution Approach 1:
The locking mechanism is merged with the probe positioning system. The same structural elements that control probe movement also perform the locking function, securing the container cap in place. This integration allows container engagement and probe positioning to occur simultaneously, enhancing reliability without significantly increasing operational complexity.
Data Source
AI summary
Embodiments of the invention provide a coupler for use in a closed transfer system configured to selectively engage a container seated in fluid communication with the coupler. The coupler has a body with a slot having an axial component, and an outlet. A probe extends from a first end portion to a second end portion and is at least partially received within the body, the probe is configured to be movable relative to the body between a first position and a second position to selectively control a flow of fluid through the outlet. A probe tip with a cylindrical bore is configured to engage the second end portion of the probe, and a handle is coupled to the probe and configured to interface with the slot. Axial movement of the handle along the slot moves the probe between the first position and the second position.