Foam-Dispensing Trigger Device for Paper Material Integrity
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Solution Overview
Problem
Conventional solution dispensers are not designed for use with materials like paper towels or cosmetic wipes, causing them to disintegrate and failing to effectively clean or decontaminate surfaces, especially in situations without water access, where alcohol-based solutions can dry out skin and are not suitable for all areas like buttocks.
Innovation Solution
A solution dispensing device with a housing, actuator, and trigger that releases a predetermined amount of solution mixed with air as foam onto targeted materials like toilet paper, paper towels, or cosmetic pads, ensuring the material's integrity and effective cleaning without water, using a combination of a solution reservoir and air chamber to create a foaming mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional solution dispensers are used to dispense solution onto paper towels or cosmetic wipes, then the solution can be dispensed, but the material disintegrates and loses its cleaning effectiveness
Solution Approach 1:
The patent changes the physical state and concentration parameters of the solution by aerating it with compressed air to create a foam product. This foamed solution has different properties than liquid solution - it is less wet and more stable on paper materials, preventing disintegration while maintaining cleaning effectiveness
Solution Approach 2:
The patent introduces air as an intermediary substance that mixes with the solution to create a foam. This intermediary (air bubbles) modifies how the solution interacts with the paper material, reducing direct liquid contact that causes disintegration while still delivering cleaning agents
2Duration of action of moving object
If alcohol-based solutions are used in situations without water access, then quick drying is achieved, but the solutions are not suitable for all areas like buttocks and can dry out skin
Solution Approach 1:
The patent modifies the solution composition by reducing alcohol content and adding water-soluble polymers and conditioning agents. This changes the evaporation rate and skin interaction properties, providing adequate drying time without excessive skin dryness or irritation
Solution Approach 2:
The patent creates a composite solution formulation combining multiple ingredients including water-soluble polymers, conditioning agents, and reduced-alcohol content. This composite formulation provides balanced properties - sufficient drying capability while being gentler on skin and suitable for sensitive areas
3Quantity of substance
If alcohol-based solutions are dispensed without aerating, then a predetermined amount can be dispensed, but the solution does not foam and cannot be effectively dispensed onto paper materials
Solution Approach 1:
The patent uses compressed air (pneumatics) to aerate the solution and create foam. The air injection system mixes gas with the liquid solution to produce a foamed product that can be effectively dispensed onto paper materials while maintaining controlled quantity
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
Enables convenient and effective dispensing of solutions onto various materials without disintegration, maintaining the material's integrity and providing thorough cleaning without water, suitable for diverse cleaning tasks and skin types.
Implementation Method 1
a volume of air bubbles is introduced in order to create a foam product that can be dispensed on certain paper goods
Data Source
AI summary
A solution dispensing device including a housing that has an interior volume. The housing holds a solution reservoir and an actuator body that is movably mounted to the housing. The actuator body is operably connected to a dispensing assembly. The dispensing assembly includes a solution chamber disposed within the actuator body. The solution chamber has an interior volume with a first inlet and a first outlet. The first outlet is in fluid communication with a dispensing passageway. When in the dispensing position the actuator body is moved toward a surface of a material positioned adjacent the dispensing passageway. A material sensing trigger is connected to the actuator body and the trigger is configured to sense a targeted material by pressing against the material. The material sensing trigger is further configured to allow the dispensing assembly to dispense a measured amount of solution onto the targeted material through the dispensing passageway.