Lid assemblies for containers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional beverage containers with drink straws face issues of spilling and splashing due to internal pressure imbalances when the lid is opened, posing safety risks.
Innovation Solution
A lid assembly with a drink straw featuring a gas relief valve, such as a one-way valve or flexible strip and spool arrangement, that releases excess gas to equalize internal and external pressure, preventing beverage spilling and splashing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional drink straw is used in a beverage container, then the beverage can be consumed through the straw, but the beverage may flow out or splash out due to internal pressure imbalance when the lid is opened
Solution Approach 1:
A gas relief valve is introduced as an intermediary component between the sealed container interior and the external environment. This valve selectively permits gas molecules to pass through while blocking liquid beverage, thereby mediating the pressure imbalance problem without compromising beverage containment or consumption functionality
Solution Approach 2:
The gas relief valve utilizes a porous structure or porous material that allows gas molecules to pass through its walls while preventing liquid beverage from penetrating. This selective permeability based on molecular size and surface tension properties enables pressure equalization without beverage leakage
2Reliability
If the beverage container is sealed to prevent contamination, then beverage safety is improved, but pressure builds up inside the container causing spilling and splashing when opened
Solution Approach 1:
The gas relief valve serves as a controlled intermediary that maintains the sealed environment while providing a regulated escape path for gas. It acts as a selective barrier that preserves beverage containment integrity while managing pressure buildup through controlled gas release
Solution Approach 2:
The gas relief valve extracts only the harmful component (excess gas pressure) from the sealed container system while leaving the beverage intact. By selectively removing gas molecules through the valve's porous structure, the system maintains sealing integrity while eliminating the pressure-related harmful effects
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 gas relief valve effectively prevents beverage spilling and splashing by allowing pressured gas to escape, ensuring safe and controlled beverage dispensing.
Implementation Method 1
the gas relief valve opens to permit the pressured gas to pass and escape... in order to balance the pressure inside and outside the drink straw
Data Source
AI summary
A lid unit for use with a beverage container. The lid unit includes a lid body having a lid cover and a side wall extending downwardly from the lid cover; and a drink straw having a gas relief valve detachably fitted to the lid body. In particular, a rotatable top plate can be placed on the lid cover; and the gas relief valve can permit the pressured gas to escape the lid unit. The gas relief valve can include a valve body, flexible strip and spool. Also, the lid cover has an annular raised rim, and defines two drink orifices. The first drink orifice is shaped and sized to be an elongated slot, and the second drink orifice is shaped and sized to be a circular hole for insertion of the drink straw. The two drink orifices are spaced apart circumferentially and in fluid communication with the beverage container.