Dispenser With Segmented Active And Passive Release Mechanisms
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Solution Overview
Problem
Existing dispensing systems for insecticides and fragrances either lack controlled release mechanisms or suffer from rapid decay in composition intensity, failing to combine the benefits of active and passive systems for sustained and intense emission.
Innovation Solution
A dispensing device with a base, reservoir, and housing that includes a horizontal component and vertical wall, where activation releases a volatile active into the housing to create multiple emanation rates through direct emission, passive permeation, and deflection, allowing for immediate and sustained release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If an active spray system is used to quickly release desired amount of composition, then the immediate release capability is improved, but the composition intensity decays rapidly
Solution Approach 1:
The invention segments the release mechanism into two distinct pathways: an active spray system for immediate release and a passive diffusion system for sustained release. The housing contains both an outlet for direct spray emission and an absorbent member for passive emanation, allowing the system to provide both rapid initial delivery and prolonged composition presence in the environment
Solution Approach 2:
The invention merges active and passive release systems into a single dispensing device. The reservoir connects to both the outlet (for active spray) and the absorbent member (for passive diffusion), enabling the composition to be released through both mechanisms simultaneously or sequentially, thus combining the advantages of immediate release and sustained duration
2Duration of action of moving object
If a passive diffusion system is used for sustained release, then the composition intensity duration is improved, but the immediate release capability is reduced
Solution Approach 1:
The release system is segmented into two functional pathways: a passive diffusion path through the absorbent member for sustained release, and an active spray path through the outlet for immediate release. This segmentation allows the system to overcome the limitation of passive systems by providing rapid composition delivery when needed while maintaining sustained presence through the diffusion mechanism
Solution Approach 2:
The invention combines passive diffusion and active spray mechanisms in one device. The reservoir supplies composition to both the absorbent member and the outlet, enabling the system to function as both a sustained-release and immediate-release device, thus merging the advantages of both passive and active systems
3Adaptability or versatility
If multiple delivery mechanisms are combined, then the versatility is improved, but the device complexity increases
Solution Approach 1:
The housing serves multiple functions: it contains the reservoir, provides structural support, facilitates passive diffusion through its walls, and directs active spray through the outlet. The absorbent member also serves dual purposes by absorbing composition for passive release and potentially directing it toward the outlet. This multi-functionality reduces the need for separate components, thereby limiting complexity increase despite enhanced versatility
Solution Approach 2:
The absorbent member is positioned within the housing in such a way that it is nested around the valve stem and reservoir assembly. This nested configuration allows the passive diffusion system to be integrated within the active spray system, sharing the same spatial envelope and reducing overall device complexity while maintaining both delivery mechanisms
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 device achieves a controlled and sustained release of volatile active compositions with multiple emanation rates, providing both immediate and prolonged effects while minimizing user exposure.
Implementation Method 1
A second quantity of the volatile active permeates through the vertical wall
Implementation Method 2
the volatile active is released from the reservoir into the interior volume of the housing
Data Source
AI summary
Dispensing devices are disclosed that include a base, a reservoir that has a volatile active, and a housing. The housing includes a horizontal component and a vertical wall extending upwardly from the horizontal component. The horizontal component and the vertical wall define an interior volume of the housing. An activator is operatively connected to the reservoir. When the activator is activated, the volatile active is released from the reservoir into the interior volume of the housing to create a first quantity of volatile active having a first emanation rate and a second quantity of volatile active having a second emanation rate.