Phosphorous Pentasulfide Container Lid and Valve Design
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Solution Overview
Problem
Conventional valves and lids for phosphorous pentasulfide containers are prone to malfunction and maintenance issues due to harsh conditions, posing exposure risks and requiring frequent repairs, while also being bulky and difficult to attach and remove.
Innovation Solution
A container system with a gate valve and lid design featuring a robust non-drive-end thrust bearing assembly and a closure mechanism with asymmetrical circumferential arrangement of retainers and catches, allowing for secure and efficient sealing and easy attachment/removal, with a lid that screws onto the mouth to block the opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional valves and lids are used for phosphorous pentasulfide containers, then the container can be filled and sealed, but the valve and lid are prone to malfunction and maintenance issues due to harsh conditions, posing exposure risks
Solution Approach 1:
The patent applies beforehand cushioning by incorporating a robust non-drive-end thrust bearing assembly in the valve design that can withstand high thrust forces and harsh conditions before they cause damage. This preventive design approach ensures the valve maintains reliability under extreme conditions, preventing malfunction that would lead to exposure risks without requiring frequent maintenance or repairs
2Reliability
If conventional lids are used for phosphorous pentasulfide containers, then the mouth can be covered, but the lids are bulky and are time consuming and challenging to attach to and remove from the bin
Solution Approach 1:
The lid is segmented into functional components with a circumferential wall featuring an asymmetrical arrangement of retainers and catches. The retainers are circumferentially spaced to define gaps, and the catches are positioned to pass through these gaps during attachment. This segmentation allows the lid to be divided into discrete engagement points, making it less bulky and easier to attach and remove while maintaining sealing effectiveness
Solution Approach 2:
The patent applies asymmetry through the circumferential arrangement of retainers and catches on the lid. The retainers are positioned at specific circumferential locations that define gaps, and the catches are asymmetrically positioned to engage with these retainers. This asymmetrical configuration reduces the overall bulk of the lid while ensuring secure attachment through the engagement mechanism, and facilitates easier removal by aligning the catches with the gaps
3Ease of operation
If conventional valves are used for phosphorous pentasulfide containers, then the fill/dispense port can be opened and closed, but the valves do not last long in the field before requiring maintenance and/or repair
Solution Approach 1:
The valve incorporates a non-drive-end thrust bearing assembly designed to withstand high thrust forces that occur during operation. This beforehand cushioning approach provides robust support and protection against the harsh conditions and rough treatment the valve encounters, extending its service life without requiring frequent maintenance or repair while maintaining full operational functionality
Data Source
AI summary
A container system for storage and transport of phosphorous pentasulfide. The container system can include a container body and a lid. The lid is configured to screw onto a mouth of the container body. The lid can include a lock for locking the lid in position on the mouth. The lid is configured for engagement by a tool to facilitate turning the lid to screw the lid on the mouth.