Lid assembly for a beverage container
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Solution Overview
Problem
Existing leak-resistant lids for drinkware containers face challenges in preventing leaks while allowing air to escape to prevent vacuum formation when drinking through a straw, and the secondary opening can create additional leak paths.
Innovation Solution
A lid assembly with a grommet and gasket system that includes a spiral ring creating an airflow path and a secondary opening, which also features a primary and secondary opening configuration to manage air flow and prevent liquid leaks, using a compressible gasket and grommet to form seals and resist liquid escape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a secondary opening is provided in the lid assembly to allow air escape, then vacuum formation is prevented, but additional leak paths are created
Solution Approach 1:
A grommet is introduced as an intermediary component between the primary opening and the secondary opening. The grommet includes a body member with a straw opening and a connecting member that extends around the retaining wall, creating a controlled intermediate structure that manages fluid flow between openings while maintaining seal integrity.
Solution Approach 2:
The lid assembly is segmented into multiple functional zones: a primary opening for straw insertion, a secondary opening for air escape, and a grommet structure with connecting members that分段 control fluid flow. The spiral ring in the gasket further segments the potential leak path, creating a tortuous flow path that prevents direct liquid escape while allowing air passage.
2Reliability
If a grommet and gasket system is used to seal the primary opening, then liquid leaks are prevented, but air flow paths are restricted
Solution Approach 1:
The grommet and gasket system provides different local qualities: the body member and connecting members provide sealing quality at the primary opening, while the spiral ring in the gasket provides a different local quality in the secondary opening area that allows air flow. The compressible nature of the gasket material provides local adaptation to maintain seals while accommodating air passage requirements.
Solution Approach 2:
The compressible gasket material provides dynamic adaptation - it can compress to seal against the container wall while also deforming to accommodate air flow through the spiral path. The flexible connecting member of the grommet dynamically adjusts to maintain seal integrity while allowing for the structural movements that occur during use.
3Ease of operation
If the primary opening is made larger to accommodate the straw, then straw insertion is facilitated, but liquid can more easily travel up the straw
Solution Approach 1:
The grommet body member acts as an intermediary between the large primary opening and the straw. It provides a controlled interface that accommodates straw insertion while the connecting member extending around the retaining wall creates a barrier that prevents liquid from directly accessing the straw opening, thus maintaining liquid containment despite the large primary opening size.
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 lid assembly effectively prevents leaks while allowing air to escape, ensuring that liquid does not travel up the straw, and the spiral ring design creates a torturous path for liquid to prevent leakage, requiring significant tilting and rolling to leak, thus enhancing leak resistance.
Implementation Method 1
a compressible gasket and grommet to form seals and resist liquid escape
Implementation Method 2
the spiral ring creates an airflow path from below the lid assembly to the secondary opening
Data Source
AI summary
A leak resistant lid assembly for a beverage container where the lid assembly has a straw or similar means for a user to drink liquid is disclosed. The lid assembly may include a base, a straw that extends through the base, a gasket, and a grommet. The base may have a primary opening that receives the straw and a secondary opening in the top of the base, where the secondary opening acts as a vent to prevent a vacuum from occurring when drinking from a straw. The grommet may have a spiral ring may help create a flow path for air from inside the beverage container to the exterior environment.