Volatile Material Delivery Apparatus with Rupturable Substrate
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Solution Overview
Problem
Existing apparatuses for delivering volatile materials are prone to de-lamination, leakage, and uneven release patterns, particularly when dealing with low vapor pressure substances, and lack control over the release duration and intensity.
Innovation Solution
A non-energized apparatus featuring a delivery engine with a rupturable substrate, a compressible flange, and a breathable membrane that allows for a continuous release of volatile materials over an extended period, ensuring uniform intensity and broad compatibility with various molecular weights and vapor pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a polymeric sheet or membrane is used to deliver volatile materials, then the volatile materials can diffuse through the membrane, but the apparatus is susceptible to de-lamination and leakage because the volatile materials are in contact with the membrane during storage
Solution Approach 1:
The invention divides the containment system into multiple functional layers: an outer barrier layer that contacts the volatile material during storage, and an inner microporous membrane that controls release. This segmentation allows each layer to perform its specific function without compromising the other, preventing both leakage and membrane damage.
Solution Approach 2:
The invention introduces a barrier layer as an intermediary between the volatile material and the microporous membrane. This barrier layer protects the membrane from direct contact with the volatile material during storage, preventing de-lamination and leakage while still allowing the membrane to function properly during use.
2Reliability
If a barrier layer is used to protect the membrane, then de-lamination and leakage are reduced, but volatile materials build up in the membrane during storage, resulting in a spike in intensity immediately after the barrier layer is removed
Solution Approach 1:
The invention uses a microporous membrane with controlled pore structure that allows volatile materials to pass through during use while preventing excessive buildup during storage. The porous structure enables controlled diffusion, maintaining uniform fragrance intensity release.
3Duration of action of stationary object
If a non-energized system is used to deliver volatile materials continuously, then electrical energy is not required, but the release pattern is difficult to control and longevity of scent is limited
Solution Approach 1:
The invention controls the release rate by changing physical parameters of the microporous membrane, including pore size, porosity, and thickness. These parameter changes enable control over the diffusion rate of volatile materials, providing consistent release patterns and extended longevity without requiring external energy sources.
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 apparatus provides a consistent and prolonged release of volatile materials, maintaining fragrance intensity over several days without leakage issues, and effectively diffuses a wide range of volatile compounds, enhancing air freshening and odor management applications.
Implementation Method 1
a microporous membrane enclosing the reservoir, rupturable substrate, and rupture element... delivers a volatile material in a continuous manner... facilitating the diffusion of volatile materials from the delivery engine
Implementation Method 2
a breathable membrane enclosing the liquid reservoir, rupturable substrate, rupture element, and collection basin... delivering a volatile material in a continuous manner
Data Source
AI summary
An apparatus for delivering a volatile material in a continuous manner is disclosed. The apparatus includes a delivery engine having a reservoir for containing a volatile material; a rupturable substrate secured to the reservoir; a rupture element positioned adjacent to the rupturable substrate; and a breathable membrane enclosing the reservoir, rupturable substrate and rupture element. In some embodiments, the apparatus includes a housing having a notch for compressing the rupture element and breaching the rupturable substrate as it is inserted into the housing.