Over-molded Container Insert for Closed Loop Dispensing
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Solution Overview
Problem
Existing container inserts for closed loop dispensing systems require multiple parts and assembly time, and often necessitate mechanical interaction to open the chemical valve for dispensing, which complicates the process and increases manufacturing costs.
Innovation Solution
A self-venting, completely recyclable container insert manufactured through an over-molding process, featuring a substrate with an over-molded plastic structure that includes a flexible valve for suction-driven liquid dispensing and bi-directional valves for automatic air venting and chemical off-gassing, reducing part count and assembly time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple parts are used in the container insert, then the functionality is improved, but the assembly time and manufacturing cost increase
Solution Approach 1:
The patent combines multiple functional components (substrate, lip, upper wall member, disc-shaped wall, lower wall member, hollow tube, and over-molded portion) into a single integrated container insert that is formed as one piece through the over-molding process. This eliminates the need to assemble multiple separate parts while maintaining all necessary functions including liquid containment, venting, and dispensing control.
2Ease of operation
If mechanical interaction is required to open the chemical valve, then the valve control is improved, but the device complexity increases
Solution Approach 1:
The container insert employs self-venting capabilities where the bi-directional valves automatically open and close based on pressure differentials within the container. The flexible valve responds to suction forces during dispensing, eliminating the need for external mechanical actuation mechanisms while maintaining effective valve control.
3Productivity
If an over-molding process is used, then the manufacturing efficiency is improved, but the manufacturing process complexity increases
Solution Approach 1:
The patent utilizes an over-molding process that forms a complex multi-functional insert as a single integrated component. This manufacturing approach, while advanced, consolidates what would otherwise require multiple separate manufacturing steps and assemblies, ultimately improving production efficiency and reducing overall manufacturing 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 provides a cost-effective, durable, and efficient container insert that automates the dispensing and venting process, reducing manufacturing costs and simplifying assembly while ensuring effective liquid and gas management within the closed loop system.
Implementation Method 1
The flexible valve is opened upon the upper side of the flexible valve being subjected to a suction force thereby permitting liquid from the container to pass upwardly therethrough
Implementation Method 2
Each of the bi-directional valves are movable downwardly to an open position to permit air to pass downwardly therethrough to vent the container. Each of the bi-directional valves are movable upwardly to an open position to permit the gas in the container to be de-gassed upwardly therethrough
Data Source
AI summary
An insert is disclosed for use with a closed loop dispensing system. The insert is press-fitted into the throat of a liquid container. The insert includes a normally closed chemical valve which is opened when subjected to a suction force to permit the liquid in the container to be dispensed to a mixing machine or the like. The insert also includes a plurality of radially spaced-apart bi-directional valves which automatically permit air to be vented into the container. The bi-directional valves also permit off-gassing of gas in the container.