Packaging Assembly Interlocking Sealing Skirts Overpressure
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Solution Overview
Problem
Existing packaging systems for cosmetic products that require mixing of two separate fluid compositions face challenges in creating overpressure due to complex assembly and high part counts, leading to difficulties in air sealing and increased costs.
Innovation Solution
A packaging and distribution assembly with a storage member and pressurization member featuring interlocking sealing skirts for axial displacement, guided helical movement, and an elongated striker to reduce chamber volume and create overpressure, along with a sampling member for efficient fluid composition mixing and distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If a bellows mechanism is used to create overpressure in the reservoir, then overpressure can be generated to favor expulsion of the second composition, but the device complexity and number of parts increase significantly
Solution Approach 1:
The patent extracts and eliminates the bellows mechanism from the system, replacing it with a simpler pressurization member that directly creates overpressure in the reservoir through axial displacement, thereby reducing the number of parts while maintaining the overpressure generation function
Solution Approach 2:
The patent merges the pressurization function with the closure system by integrating the pressurization member into the storage member assembly, allowing the same component structure to serve both sealing and pressurization functions, thus reducing overall device complexity
2Reliability
If multiple parts are used to form the closed chamber, then the chamber can be sealed to air, but the seal reliability decreases due to multiple potential failure points
Solution Approach 1:
The patent combines multiple sealing functions into a single integrated sealing skirt structure that forms the closed chamber, eliminating the need for multiple separate sealing components and their associated interfaces, thereby improving seal reliability while reducing part count
Solution Approach 2:
The patent uses a uniform sealing skirt structure made from the same material with consistent geometric features throughout, ensuring homogeneous sealing performance across the entire closed chamber interface, which improves reliability by eliminating variability between different sealing components
3Stress or pressure
If a complex assembly structure is used to create overpressure, then overpressure can be generated, but the manufacturing cost increases
Solution Approach 1:
The patent removes the complex bellows assembly and replaces it with a simple pressurization member consisting of basic geometric shapes that can be manufactured using standard molding techniques, significantly reducing manufacturing cost while maintaining overpressure generation capability
Solution Approach 2:
The patent changes the design parameters from complex multi-component assemblies to simple monolithic structures with optimized geometric parameters, allowing for more efficient manufacturing processes and lower production costs while achieving the same pressurization effect
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
This solution simplifies the assembly process, reduces part count, and achieves reliable overpressure creation while enhancing the flow and restitution of the second fluid composition, resulting in improved packaging efficiency and user experience.
Implementation Method 1
the axial displacement of the first and second sealing skirts with respect to one another in such a way as to decrease a volume of the closed chamber
Implementation Method 2
an end face of said striker is arranged at a distance from the closed end of said tubular reservoir, said end face being able to strike said closed end during or at the end of the axial displacement
Data Source
AI summary
This invention relates to a packaging and distribution assembly (10) for a fluid product, comprising: a receptacle for a first fluid composition; a storage member (22), comprising a tubular reservoir (40) for a second fluid composition, a closed end (48) of said tubular reservoir being configured to be arranged inside the receptacle assembled to said storage member; and a pressurization member (24) of the tubular reservoir. The storage member and the pressurization member comprise respectively a first (44) and second (84) sealing skirts, configured to be inserted one in the other in a sealed manner, in such a way as to define a closed chamber (130) in communication with the tubular reservoir (40), to be displaced axially one in relation to the other in such a way as to decrease the volume of said closed chamber.