Closed Transfer Coupler With Movable Probe and Cam Locking
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Solution Overview
Problem
Existing closed transfer systems for hazardous chemicals lack effective mechanisms to prevent spills and leaks during transfer, and do not adequately address the need for efficient and safe handling and cleaning of chemical containers.
Innovation Solution
A coupler system with a cam locking mechanism, a movable probe, and a rinsing head that allows for selective fluid communication and secure container attachment, enabling safe transfer and rinsing of chemicals while preventing accidental disconnection and spills.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional transfer system is used, then the structure is simple, but spills and leaks occur during chemical transfer
Solution Approach 1:
The patent combines multiple functions into a single integrated coupler device: container securing via cam locking mechanism, chemical transfer via probe with fluid communication, and rinsing via integrated rinsing head. This merging of functions provides reliable spill prevention while maintaining reasonable structural simplicity through functional integration rather than separate components.
Solution Approach 2:
The coupler employs dynamic elements including the movable probe that can extend and retract, the rotatable cam locking mechanism that transitions between locked and unlocked states, and the rinsing head that rotates to direct water flow. These dynamic components enable reliable chemical transfer and cleaning operations while allowing the system to adapt to different operational phases.
2Reliability
If a secure locking mechanism is implemented, then container security is improved, but the ease of operation decreases
Solution Approach 1:
The cam locking mechanism utilizes mechanical rotation to engage and disengage locking arms that secure the container. The cam geometry converts rotational motion into the linear motion needed to engage/disengage the locking arms, providing secure container attachment through a simple rotational operation rather than complex multi-step procedures.
3Productivity
If a rinsing system is added, then cleaning efficiency is improved, but the device complexity increases
Solution Approach 1:
The rinsing head is integrated directly onto the probe assembly, combining the transfer and rinsing functions within the same structural framework. Water is delivered through passages in the probe, and the rinsing head rotates to distribute water for effective cleaning, eliminating the need for separate rinsing equipment and reducing overall system complexity.
4Productivity
If the probe extends further, then chemical transfer effectiveness is improved, but the risk of accidental disconnection increases
Solution Approach 1:
The probe is designed as a movable component that can extend to the required length for effective chemical transfer, then retract to a protected position within the coupler body. This dynamic positioning allows the probe to achieve sufficient extension for productive transfer operations while minimizing exposure and disconnection risk during storage and transport.
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 ensures secure transfer and rinsing of chemicals, reducing the risk of spills and leaks, and facilitating efficient handling and cleaning of chemical containers, thereby enhancing safety and compliance with regulations.
Implementation Method 1
The rinsing head can have a vane for directing water outwardly away from the rinsing head
Implementation Method 2
The cam locking mechanism can have an inner ring comprised of a plurality of rotatable cams received within an outer ring, which is rotatable relative to an inner ring
Implementation Method 3
The probe defines a first fluid passageway and a second fluid passageway extending therethrough. The first fluid passageway transports a first fluid through the body and the second fluid passageway transports a second fluid different from the first fluid
Data Source
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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 couplet 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 relaiive 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 die second position.