Foam Dispensing Container Refining Member Design
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Solution Overview
Problem
Existing foam dispensing containers do not adequately address the factors affecting the merchantability of the foam, such as elasticity, stability, appearance, and freshness, which are crucial for a premium feel and user satisfaction.
Innovation Solution
A foam dispensing container design that includes a cap with a reciprocating nozzle member, an air pump, a liquid pump, an air cylinder, a liquid cylinder, and a refining member to mix air and liquid foamably, achieving a foam density of 0.03 g/cm3 to 0.06 g/cm3, bubble diameters of 450 μm or smaller, and an expansion ratio of 15.5 to 30.5.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a porous membrane with 50 to 500 mesh is used to mix air and liquid, then the foam can be formed and dispensed, but the elasticity, stability, and appearance quality of the foam are insufficient for premium merchantability
Solution Approach 1:
The mixing section is divided into multiple chambers with different functions: a first mixing chamber for initial air-liquid mixing, a second mixing chamber for further refinement, and a porous membrane section. This segmentation allows progressive foam formation and refinement, improving elasticity, stability, and appearance while maintaining reliable foam dispensing.
Solution Approach 2:
Different regions of the mixing section have different structures optimized for specific functions: the first mixing chamber uses a net structure for coarse mixing, the second mixing chamber refines the foam, and the porous membrane section (150-400 mesh) provides fine filtration. This local optimization ensures premium foam quality throughout the dispensing process.
2Ease of manufacture
If the foam density is not controlled within 0.03 g/cm³ to 0.06 g/cm³, then the foam may be easier to produce, but the desirable thickness, elasticity, and stability are not achieved
Solution Approach 1:
The patent specifies precise parameter ranges: foam density controlled at 0.03 g/cm³ to 0.06 g/cm³, porous membrane mesh count at 150 to 400, and expansion ratio at 10 to 20 times. These parameter controls ensure the foam achieves desirable thickness, elasticity, and stability while maintaining ease of production through the designed mixing mechanism.
3Device complexity
If the expansion ratio is not controlled within 10 to 20 times, then the mixing process may be simpler, but the foam bubble size and overall quality are compromised
Solution Approach 1:
The mixing process is segmented into two stages: first mixing chamber for initial expansion and coarse bubble formation, followed by the second mixing chamber and porous membrane for refinement. This segmentation achieves the precise expansion ratio of 10 to 20 times with uniform bubble diameters of 50 to 200 μm without excessive device complexity.
4Device complexity
If no refining member is used, then the device structure is simpler, but the foam homogeneity, elasticity, and stability are insufficient
Solution Approach 1:
The refining function is segmented into the porous membrane section (150-400 mesh) and the two-stage mixing chambers. This segmentation provides effective foam refinement and homogenization without adding excessive structural complexity, achieving desirable foam elasticity and stability.
Solution Approach 2:
The patent employs a porous membrane with 150 to 400 mesh as a refining member in the mixing section. This porous material effectively refines the foam structure, ensuring homogeneity, elasticity, and stability while maintaining a relatively simple device structure.
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 container produces foam with excellent elasticity and stability, maintaining a desirable thickness and cleansing feel, while enhancing the premium appearance and merchantability of the foam.
Implementation Method 1
an air pump and a liquid pump which are reciprocated together with the nozzle member; an air cylinder which is joined to the air pump in a liquid-tight manner and which pushes air toward a discharging outlet in response to a reciprocation of the air pump; a liquid cylinder which is joined to the liquid pump in a liquid-tight manner and which pushes liquid toward the discharging outlet in response to a reciprocation of the liquid pump; and a refining member which is arranged in the cap to form foam by mixing air pushed out of the air cylinder with liquid pushed out of the liquid cylinder
Implementation Method 2
a refining member which is arranged in the cap to form foam by mixing air pushed out of the air cylinder with liquid pushed out of the liquid cylinder, and to refine the foam
Data Source
AI summary
A foam dispensing container includes: a cap mounted on an opening of a container containing a foamable liquid content; a nozzle having an outlet fitted onto the cap while being allowed to reciprocate; an air pump and a liquid pump reciprocated together with the nozzle; an air cylinder joined to the air pump liquid and pushing air toward the outlet in response to reciprocation of the air pump; a liquid cylinder joined to the liquid pump liquid tightly and pushing a liquid toward the outlet in response to reciprocation of the liquid pump; and a refining member arranged in the cap to form the foam by mixing the air pushed out of the air cylinder with the liquid pushed out of the liquid cylinder, and to refine the foam. A density of the foam dispensed from the discharging outlet falls within a range of 0.03 g/cm3 to 0.06 g/cm3.