Gas Discharge Cap With Downward Venting for Leak Prevention
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Solution Overview
Problem
Existing cosmetic containers face issues with gas discharge efficiency and content leakage due to gas pressure buildup, particularly when storing vitamin contents, with conventional methods compromising aesthetic appeal and discharge efficiency.
Innovation Solution
A gas discharge cap that discharges gas through the lower side of the cap, utilizing a check valve with a nitrile butadiene rubber material, coupled with a spring and foam packing portion, and additional sealing areas to prevent content leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a hole is formed in the upper portion of the outer cap to discharge gas, then gas can be discharged to the outside, but the aesthetic sense of the cosmetic product deteriorates and gas discharge efficiency is reduced
Solution Approach 1:
The patent inverts the conventional gas discharge direction by discharging gas downward through the lower side surface of the cap instead of upward through a hole in the upper portion. This inversion maintains the aesthetic appearance of the cap while enabling effective gas discharge, resolving the contradiction between productivity and shape.
2Reliability
If the container is sealed to prevent leakage, then contents are protected, but gas pressure buildup causes the container to swell and may lead to explosion
Solution Approach 1:
The patent introduces a check valve as an intermediary component between the sealed container and the external environment. The check valve mediates the conflict by allowing gas to escape through a controlled path (lower side surface) while maintaining the sealed appearance and preventing content leakage, thus resolving the contradiction between sealing performance and pressure buildup.
3Reliability
If the check valve is added to seal the inner cap opening, then content leakage is prevented, but the device complexity increases
Solution Approach 1:
The patent employs a check valve made of elastic material (such as silicone rubber) that functions as a flexible sealing element. This flexible shell approach provides effective content leakage prevention through simple elastic deformation and contact sealing, avoiding the need for complex mechanical sealing mechanisms and thus resolving the contradiction between reliability and device 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
Improves aesthetic sense and gas discharge efficiency while effectively preventing contents from leaking out by forming sealing areas and using a check valve with a spring and foam packing to stabilize pressure reduction.
Implementation Method 1
a check valve configured to be inserted into and coupled to the inner cap opening to seal or open the inner cap opening according to a pressure of the main body
Implementation Method 2
a spring configured to press the check valve toward the main body
Implementation Method 3
a foam packing portion configured to prevent contents in the main body from leaking out
Data Source
AI summary
A gas discharge cap 100 includes a main body 200, an inner cap 110 coupled to the main body 200 and having a partial region in which an inner cap opening 111b is formed, an outer cap 120 covering an outer side of the inner cap 110, and a check valve 130 inserted into and coupled to the inner cap opening 111b to seal or open the inner cap opening 111b according to a pressure of the main body 200.