Drinking Cap Vent Channel for Leak-Resistant Bottle Venting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing drinking caps, particularly those with ventilation channels, face challenges in achieving a balance between reliable ventilation and leak-proof sealing, often requiring precise torque settings and complex production processes, which can lead to inefficiencies and leaks.
Innovation Solution
A drinking container design featuring a ventilation channel with a cross-sectional surface area of 0.02 to 0.08 mm², made from rigid materials with a modulus of elasticity of at least 0.2 kN/mm², that extends radially and circumferentially around the vessel opening, ensuring liquid-tight sealing and unhindered ventilation without compression during tightening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ventilation channels are made larger to improve air flow, then ventilation is enhanced, but liquid escape becomes more likely
Solution Approach 1:
The patent employs a membrane structure that covers the ventilation channel opening. This membrane acts as a flexible barrier that allows air to pass through while blocking liquid. The membrane can deform under pressure differential to allow ventilation but maintains its blocking function against liquid due to surface tension and pressure balance, effectively resolving the contradiction between ventilation and liquid prevention.
2Adaptability or versatility
If soft elastic materials are used for sealing surfaces to accommodate angle variations, then sealing adaptability is improved, but production complexity increases
Solution Approach 1:
The patent uses a membrane structure made of flexible material that can accommodate variations in sealing surface angles and tolerances. This membrane is integrated into the cap structure and deforms to match the bottle opening geometry, providing reliable sealing without requiring complex multi-component assemblies or precise angular adjustments, thus maintaining ease of manufacture while achieving adaptability.
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 design provides effective ventilation while preventing liquid escape, even when the container is tipped, by maintaining sufficient cross-sectional surface area and rigidity, ensuring reliable sealing and reduced production complexity.
Implementation Method 1
By sucking on the mouthpiece during drinking, negative pressure is created in the drinking vessel, which must be relieved. Drinking caps have ventilation valves for this reason.
Implementation Method 2
U.S. Pat. No. 2,737,180, the entire contents of which is incorporated herein by reference, describes a drinking suction nozzle made of flexible material, which is protected from collapsing by the negative suction pressure.
Implementation Method 3
The small cross-section of the channel and its length are to prevent the escape of liquid.
Data Source
AI summary
A drinking container with a drinking vessel, a drinking cap and a threaded ring. The drinking vessel has an inner space, a circular vessel opening, an opening edge surrounding the vessel opening and an external thread next to the vessel opening. The drinking cap has a bottom wall, a ring flange surrounding the bottom wall for abutment on the opening edge of the drinking vessel, a drinking element protruding outwards from the bottom wall and a valve for sealing and opening a passage from the inner space to the outside of the mouthpiece, which is openable for drinking and otherwise closable. A ventilation channel is present in the bottom side of the ring flange or in the top side of the opening edge.