One-Piece Dispensing Valve With Flexible Isolating Portion
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Solution Overview
Problem
Existing dispensing valves are often retained by separate rigid collars or mounting rings, making them difficult to recycle and prone to sticking during production and material handling, which leads to contamination and inefficiencies in recycling processes.
Innovation Solution
A one-piece dispensing valve with a resiliently flexible mounting, opening, and isolating portions, where the isolating portion is radially coupled between the mounting and opening portions to absorb forces and prevent distortion, and the valve body has a unique cross-sectional shape to reduce stress on the valve, allowing for easy assembly and disassembly without a separate retainer collar.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate rigid retainer collar or mounting ring is used to retain the dispensing valve, then the valve can be securely mounted, but the valve becomes difficult to recycle and prone to sticking during production and material handling
Solution Approach 1:
The patent merges the valve body and mounting structure into a single integrated component. The valve body includes a mounting portion with a radially outwardly extending annular wall that directly engages the closure body, eliminating the need for separate rigid retainer collars or mounting rings. This integration allows the entire assembly to be recycled together without contamination while maintaining secure mounting through the built-in engagement structure.
2Reliability
If a separate rigid retainer collar or mounting ring is used to retain the dispensing valve, then the valve can be securely mounted, but the valve is prone to sticking during production and material handling
Solution Approach 1:
The patent employs flexible resilient portions in the valve body structure, including a radially inwardly extending annular wall and a radially outwardly extending annular wall that are flexibly coupled. These flexible elements allow the valve to accommodate dimensional variations and reduce friction during production and material handling, preventing sticking while maintaining secure mounting through elastic deformation rather than rigid interference.
3Reliability
If the valve body has a unique cross-sectional shape to reduce stress on the valve, then the valve is protected from distortion, but the manufacturing complexity increases
Solution Approach 1:
The patent applies different wall thicknesses and structural characteristics to different portions of the valve body. The radially inwardly extending annular wall and radially outwardly extending annular wall have specific thickness configurations that provide localized stress distribution. This local quality variation protects the valve from distortion under pressure while maintaining compatibility with standard injection molding processes, balancing manufacturing complexity with performance requirements.
4Reliability
If the isolating portion is radially coupled between the mounting and opening portions, then forces are absorbed and distortion is prevented, but the device complexity increases
Solution Approach 1:
The patent integrates the isolating portion directly into the valve body as a continuous structure. The radially inwardly extending annular wall and radially outwardly extending annular wall are flexibly coupled within the valve body, forming an integrated isolating mechanism that absorbs forces and prevents distortion. This merging of the isolating function into the valve body structure eliminates the need for separate isolating components, reducing overall device complexity while maintaining distortion prevention capabilities.
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 solution enables the valve to be recycled without contamination, reduces sticking issues during production, and maintains proper sealing and operation by absorbing forces that would cause distortion, thus improving the recycling efficiency and operational reliability of dispensing assemblies.
Implementation Method 1
a resiliently flexible isolating portion disposed radially between and coupled to the mounting and opening portions
Implementation Method 2
may have a vacuum break to reduce occurrences of valves sticking to one another and/or to material handling equipment during production
Data Source
AI summary
A dispensing valve includes a resiliently flexible mounting portion, a resiliently flexible opening portion disposed radially inwardly of the mounting portion, and a resiliently flexible isolating portion disposed radially between and coupled to the mounting and opening portions. The isolating portion extends both radially outwardly and axially to form a first radial space between the opening and isolating portions, and is spaced radially inwardly of the mounting portion to form a second radial space between the mounting and isolating portions. The opening portion may include one or more slits.