One-Piece Flexible Dispensing Valve with Annular Rib
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Solution Overview
Problem
Existing dispensing valves require separate rigid retainers or mounting rings and are not recyclable, limiting their functionality and environmental impact.
Innovation Solution
A one-piece, flexible resilient molded plastic dispensing valve with an annular rib that limits axial movement during dispensing and venting, integrated with a base and closure shell, allowing for recyclability and reduced environmental footprint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate rigid retainer collar or mounting ring is used to secure the dispensing valve, then the valve can be securely retained to the closure, but the valve cannot be recycled with the closure
Solution Approach 1:
The dispensing valve is integrated directly with the closure shell through a molded-in attachment mechanism, eliminating the need for separate retainers or mounting rings. The valve's peripheral flange is molded directly onto the closure shell, creating a unified structure that maintains secure retention while enabling full recyclability of the closure assembly.
2Adaptability or versatility
If a one-piece flexible resilient molded plastic valve is used without separate retainers, then recyclability is improved, but the valve may have insufficient structural support
Solution Approach 1:
The one-piece valve is designed with distinct functional zones: a peripheral flange for attachment, an intermediate section for structural support, and a central opening portion for dispensing. This segmentation of functions within a unified structure provides adequate structural support while maintaining recyclability.
Solution Approach 2:
The valve is constructed from flexible resilient molded plastic that provides the necessary structural support through its material properties and geometric design. The flexibility allows the valve to function effectively without rigid retainers, while the resilient nature provides sufficient strength for dispensing operations.
3Ease of operation
If the opening portion is allowed to move freely during dispensing, then flexibility is improved, but axial movement control is lost
Solution Approach 1:
The valve design allows dynamic movement of the opening portion during dispensing operations while maintaining control through the molded attachment to the closure shell. The flexible resilient material enables natural movement patterns without requiring additional control mechanisms, achieving ease of operation without increased complexity.
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 efficient dispensing and venting without separate retainers, enhancing recyclability and reducing environmental impact while maintaining effective product flow control.
Implementation Method 1
A one-piece one-material resiliently flexible dispensing valve with an annular rib to limit axial movement of the opening portion during dispensing and venting of the valve
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 intermediate portion disposed radially between and coupled to the mounting and opening portions, and extending both radially outwardly and axially to form a first radial space between the opening and isolating portions, and spaced radially inwardly of the mounting portion to form a second radial space between the mounting and intermediate portions. The mounting portion includes an annular rib extendable axially outward with respect to the opening portion to limit axial movement of the opening portion during dispensing and venting of the valve.