Compressible Fluid Dispensing Mechanism With Bellows and Check Valves
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Solution Overview
Problem
Conventional mechanisms for dispensing fluidic products from cosmetic and therapeutic packs are inefficient due to complexity, leakage issues, and air infiltration, leading to product degradation over time.
Innovation Solution
A capsular body with a bellows element having elastic memory, a sliding piston, and check valves that allow for leakproof dispensing through a tubular actuator stem and nozzle, utilizing a bellows with elastic memory to create pressure for product displacement and controlled release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional mechanisms with springs, balls, and moving mechanical components are used, then product dispensing is achieved, but device complexity increases and manufacturing cost rises
Solution Approach 1:
The patent removes complex mechanical components (springs, balls, multiple moving parts) from the dispensing mechanism, retaining only the essential elements needed for product delivery. This extraction of unnecessary components directly reduces device complexity and manufacturing cost while maintaining dispensing functionality.
Solution Approach 2:
The bellows element provides self-contained pressure generation through its elastic memory, eliminating the need for external springs or complex mechanical actuators. The system serves itself by using the bellows' inherent elastic properties to create the necessary pressure for product dispensing, thereby simplifying the overall mechanism.
2Reliability
If conventional mechanisms with internal valves are used, then product dispensing is achieved, but leakage occurs and product waste increases
Solution Approach 1:
The patent eliminates complex internal valve mechanisms that are prone to leakage, keeping only the essential sealing elements required for leakproof operation. By removing unnecessary valving components, the design reduces potential failure points and improves sealing reliability.
Solution Approach 2:
The bellows element acts as an intermediary pressure-generation mechanism that eliminates the need for complex valve systems. It provides smooth, controlled pressure to dispense product through simple openings, avoiding the leakage issues associated with traditional valve mechanisms while preventing product waste.
3Reliability
If conventional mechanisms are used, then product dispensing is achieved, but air enters the pack causing oxidation and product degradation
Solution Approach 1:
The patent removes complex valve systems that create multiple potential entry points for air. By simplifying the mechanism to essential components only, the design minimizes openings and sealing interfaces, thereby reducing opportunities for air infiltration and subsequent oxidation.
Solution Approach 2:
The bellows element serves as an intermediary that enables product dispensing without requiring complex valve openings. It generates pressure through its elastic memory, allowing product flow through controlled pathways that minimize air entry points, thus protecting product stability and preventing oxidation.
4Ease of manufacture
If simple mechanisms are used, then manufacturing cost is reduced, but leakage and poor sealing occur
Solution Approach 1:
The patent removes unnecessary complex components that increase manufacturing cost, retaining only the essential elements needed for reliable sealing and dispensing. This selective extraction achieves cost reduction without compromising sealing performance.
Solution Approach 2:
The bellows element acts as a simple yet effective intermediary that provides both cost-effectiveness and reliable sealing. It generates pressure through elastic memory without requiring expensive complex mechanisms, while its design ensures proper sealing and prevents leakage throughout the dispensing process.
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 solution provides efficient, leakproof dispensing and controlled product release, minimizing waste and maintaining product integrity by using a bellows with elastic memory and check valves to manage pressure and flow effectively.
Implementation Method 1
a bellows element with an elastic memory that, when activated, establishes sufficient internal pressure to displace the fluidic product from the inside to the outside of the pack
Implementation Method 2
check valves that allow for leakproof dispensing through a tubular actuator stem and nozzle, utilizing a bellows with elastic memory to create pressure for product displacement and controlled release
Data Source
AI summary
A pressing mechanism for miscellaneous packs dispensing fluidic products comprising a capsular body in which a hollow actuator stem is slidably mounted to perform downward and upward movements with the outflow and backflow provided by a bellows with an elastic memory. An upper end of the bellows is coupled to a corresponding part of the actuator stem by a locking ring, and is also coupled to a button/nozzle, while the lower end of the bellows is supported on the capsular body. The actuator stem is slidably guided by an annular cap, below which the lower end of the actuator stem is coupled to a piston and a first check valve, which, together with a second check valve, allows the actuation of the actuator stem.