Compression Receptacle Foam Generator With Air-Mixing Check Valve
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Solution Overview
Problem
Conventional foam generators for compression receptacles require filling with compressed gas and shaking, leading to corrosion of metal components, quality changes in liquid contents, and inefficient foam discharge, especially when used with functional products.
Innovation Solution
A foam generator for compression receptacles that mixes liquid contents with air using pressure from the compression receptacle, featuring a cap with an air hole, a check valve unit, and a filtration member, allowing external air introduction and preventing metal contact, enabling direct compression and uniform foam discharge without shaking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal components (coil spring and ball) are used in the liquid cylinder for conventional foaming pump assemblies, then the mechanical function of pumping and mixing is achieved, but the metal components get corroded by liquid contents over time, causing quality changes in the contents
Solution Approach 1:
The patent removes metal components (coil spring and ball) from the liquid cylinder and replaces them with a plastic pump assembly. This extraction of harmful metal elements from the liquid contact zone eliminates corrosion while maintaining the mechanical pumping function through alternative non-metallic materials.
Solution Approach 2:
The patent changes the material parameter of the pump assembly from metal to plastic. This material substitution fundamentally alters the chemical compatibility with liquid contents, preventing corrosion and quality degradation while preserving the mechanical functionality of the pumping system.
2Ease of operation
If compressed gas is filled in the receptacle for conventional foam generators, then foam generation is enabled, but it becomes technically difficult to manufacture the receptacle and requires shaking for proper operation
Solution Approach 1:
The pump assembly is designed to automatically pump liquid contents and mix with air from the environment when the receptacle is squeezed. This self-service mechanism eliminates the need for pre-filled compressed gas and shaking operations, as the system autonomously generates foam through user compression alone.
Solution Approach 2:
The patent uses pneumatic principles by allowing ambient air to be drawn into the liquid cylinder through air holes and mixed with pumped liquid contents. This pneumatic mixing mechanism replaces the need for compressed gas storage, simplifying receptacle manufacturing while enabling effective foam generation through compression.
3Reliability
If the receptacle is inclined or not shaken, then conventional foam generators cannot properly eject liquid contents as foam, resulting in only compressed gas being ejected
Solution Approach 1:
The pump assembly automatically activates when the receptacle is compressed, regardless of its orientation. The mechanical compression directly drives the pump to draw liquid and mix it with air, ensuring reliable foam ejection without requiring the user to shake or maintain a specific receptacle position.
Solution Approach 2:
The pump assembly is designed with flexible components that can respond to compression forces from any direction. This dynamic design allows the pumping mechanism to function effectively regardless of receptacle inclination, ensuring consistent foam generation under varying usage conditions.
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
Prevents quality changes in liquid contents, improves product responsiveness, and allows direct and uniform foam application to the skin, while preventing leakage and enhancing user convenience through a stable discharge mechanism.
Implementation Method 1
mixing liquid contents, discharged out of the compression receptacle when the compression receptacle is compressed, with air
Implementation Method 2
a check valve unit, the check valve unit including a plurality of check valves, for selectively opening and closing air holes
Implementation Method 3
a filtration member, the filtration member being configured to guide the discharge of foam formed as the result of the liquid contents being mixed with air in the air and liquid mixing chamber while homogenizing the foam
Data Source
AI summary
A foam generator for compression receptacles is configured such that liquid contents pumped by an internal pressure as a result of directly compressing a compression receptacle, having the liquid contents stored therein, are mixed with air in a gas-liquid mixing chamber and, at the same time, directly discharged in the form of foam. Accordingly, the foam generator not only is capable of preventing the corruption of the liquid contents, which are not in contact with any separate metal member, but also further improves product responsiveness, since the contents are instantly discharged in the form of foam by compressing the compression receptacle.