Pour Lip Closure With Drain Back Mechanism
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Solution Overview
Problem
Existing dispensing closures for bottles often result in liquid drips running down the container sides, causing messes, as they fail to effectively prevent spillage during and after use.
Innovation Solution
A closure with a drain back mechanism, featuring a tubular spout and pour lip that funnels drips back into the container using capillary action, combined with a sealing cap connected via a living hinge for secure closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional spout is used for dispensing liquid, then liquid can be dispensed from the container, but liquid drips run down the side of the container causing messes
Solution Approach 1:
A pour lip is introduced as an intermediary structure between the spout and the container exterior. This pour lip acts as a mediator that intercepts liquid drips at the spout outlet and redirects them back into the container through capillary action, preventing the harmful effect of drips running down the container side while maintaining normal dispensing function
Solution Approach 2:
The patent replaces purely mechanical gravity-driven drip flow with capillary action forces. The pour lip is designed with specific surface properties that generate capillary forces to draw liquid back into the container against gravity, substituting the mechanical gravity-based drainage system with a capillary-based retrieval system
2Productivity
If the container is opened for dispensing, then liquid can be accessed, but liquid spills and creates mess requiring cleaning
Solution Approach 1:
The invention converts the harmful effect of liquid drips and spills into a beneficial self-cleaning mechanism. The pour lip structure that initially appears to merely redirect liquid actually creates a capillary action system that actively draws spilled liquid back into the container, transforming the waste and cleaning burden into a self-retrieval benefit that reduces post-use cleaning requirements
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 closure effectively minimizes spillage by directing drips back into the container, reducing the need for post-use cleaning and providing a secure sealing mechanism.
Implementation Method 1
The spout may further have a pour lip extending from a leading edge of the spout, configured to draw drips against the spout as the container is turned upright, thereby funneling drips back down into the container
Data Source
AI summary
A closure with a drain back for a container of liquids is disclosed. The closure includes a closure body having an upper deck. A skirt depends from the upper deck and is configured to secure to a neck of a container. An inner annular wall depends from the upper deck within the skirt. The inner wall has a downwardly sloped bottom wall with an edge forming an opening therethrough, forming a drain back for liquid into the container. A tubular spout extends from the bottom wall. The spout has a dispensing orifice. The spout and dispensing orifice configured for fluid communication with the container to dispense liquids therefrom. The closure may further include a sealing cap connected to the closure body via a living hinge.