Passive Fragrance Diffuser Piston Sealing for Personal Portability
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Solution Overview
Problem
Conventional fragrance diffusers are not designed for versatility and flexibility in use, often requiring frequent user interaction, are unsightly, and lack ease of activation and deactivation, making them impractical for personal use in various environments.
Innovation Solution
A non-spray passive fragrance diffuser with a tubular housing and a movable piston that selectively dispenses fragrance upon axial movement, featuring a sealing mechanism to prevent fragrance dispersion when not in use, allowing easy activation and deactivation, and can be clipped to personal items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fragrance diffusers are designed for stationary use (table top, wall socket, air-vent clip), then they can provide continuous fragrance dispersion, but they are unsightly, relatively large, and take up otherwise usable space
Solution Approach 1:
The device is segmented into a compact cylindrical housing containing a fragrance carrier member and a separate actuating mechanism. The fragrance carrier can be replaced independently, allowing the device to maintain a small form factor while providing continuous fragrance through multiple carriers.
Solution Approach 2:
The fragrance carrier member is nested within the cylindrical housing, with the actuating piston nested within the housing. This nested arrangement maximizes space efficiency and minimizes the overall device volume, enabling portable personal use without requiring significant space.
2Duration of action of moving object
If aerosol spray fragrance devices are used, then fragrance can be dispensed on demand, but they require frequent user interaction to avoid aerosol dissipating and are not long-lasting
Solution Approach 1:
The fragrance carrier member is pre-loaded with fragrance material before insertion into the device. Once inserted, the carrier continuously releases fragrance through passive diffusion and evaporation without requiring user interaction, extending the duration of action while reducing operational frequency.
Solution Approach 2:
The fragrance carrier member automatically dispenses fragrance through passive emission mechanisms without requiring user activation. The device serves itself by maintaining constant fragrance release through the carrier's material properties, eliminating the need for frequent user intervention required by aerosol devices.
3Ease of operation
If conventional fragrance devices are designed as jewelry pendants or finger-rings, then they can be used for personal wear, but they are generally complicated in design and difficult to easily activate and deactivate
Solution Approach 1:
The device incorporates a movable actuating piston that can be easily pushed to activate fragrance release or pulled back to deactivate it. This dynamic mechanism provides simple binary control (on/off) without requiring complex design elements, making the device easy to operate while maintaining relatively simple construction.
4Reliability
If the piston is constructed with an interference fit with the housing body, then the fragrance carrier member is sealed therein when not in use, but the piston requires precise dimensional control
Solution Approach 1:
The interference fit is applied locally at the critical sealing interface between the piston and housing, rather than requiring the entire piston to be precision-manufactured. This localized approach provides reliable sealing where needed while allowing standard tolerances elsewhere in the component.
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
Provides a compact, long-lasting, and versatile fragrance diffuser that can be easily activated and deactivated, suitable for personal use in multiple environments, without direct contact with fragrant oils, and allows control over scent emission.
Implementation Method 1
a fragrance carrier member, such as a section of silicone or other absorptive material impregnated with a fragrant oil
Implementation Method 2
permit the scent from the fragrance carrier to escape into the surrounding environment
Data Source
AI summary
A passive emission fragrance delivery mechanism/diffuser assembly which includes an outer tubular housing body that carries an inner movable piston and fragrance carrier/diffusion member for selectively dispensing a non-spray fragrant emission upon axial movement of the piston within the tubular housing. The fragrance diffusion member includes a scent-impregnated material which may be movable with the piston or stationery relative thereto within the outer body. The piston is longer than the outer tubular body, so as to always extend beyond the confines of the outer body through one of its open ends. The piston is constructed with an interference fit with the housing body so as to seal the fragrance carrier member therein when not in use.