Vacuum Enclosure Sound Baffling Device with Dynamic Control
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Solution Overview
Problem
Existing sound-baffling devices lack the ability to dynamically adjust their sound baffling characteristics, and previous methods for adjusting ambient sound often require changing the spatial disposition of the devices, which is not dynamically feasible.
Innovation Solution
The use of an enclosure containing a vacuum to baffle sound, where the vacuum acts as a total barrier to sound transmission, with the ability to dynamically control the ambient sound by admitting and removing matter from the enclosure, thereby adjusting its sound baffling characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional sound baffling devices are used, then sound transmission can be reduced, but the devices cannot dynamically adjust their sound baffling characteristics
Solution Approach 1:
The patent applies the dynamics principle by enabling the sound baffling device to transition between different states - from a non-baffling configuration to an active baffling configuration. The enclosure can be dynamically deployed or reconfigured based on ambient sound conditions, allowing the system to adapt its sound baffling characteristics in real-time rather than being static throughout operation.
Solution Approach 2:
The patent implements parameter changes by modifying the physical state or configuration parameters of the enclosure - such as its volume, shape, or internal pressure - to alter its sound baffling properties. By changing these parameters, the device can dynamically adjust its effectiveness at blocking sound transmission while maintaining reliability across different operational states.
2Adaptability or versatility
If the spatial disposition of sound baffling devices is changed to adjust ambient sound, then sound control is achieved, but the adjustment process is not dynamically feasible
Solution Approach 1:
The patent resolves this contradiction by making the enclosure itself dynamic rather than requiring dynamic repositioning of the entire device. The enclosure can expand, contract, or change its internal configuration in place, providing sound control capability without requiring complex spatial repositioning mechanisms, thereby maintaining ease of operation while achieving adaptability.
Solution Approach 2:
The patent applies dimensionality change by allowing the enclosure to modify its properties in an internal dimension (such as internal volume or pressure) rather than requiring movement in external space. This enables sound control capability to be achieved through internal reconfiguration rather than external repositioning, making the system dynamically adjustable while maintaining ease of operation.
3Reliability
If an enclosure containing a vacuum is used to baffle sound, then sound transmission is substantially blocked, but the enclosure must maintain structural integrity against pressure differential
Solution Approach 1:
The patent applies the anti-weight principle by using the external atmospheric pressure as a counterbalancing force to the internal vacuum pressure. The enclosure is designed to withstand the pressure differential by leveraging the natural counteracting forces - the external pressure pushes inward while the internal vacuum pulls outward, creating a balanced state that maintains structural integrity while achieving effective sound baffling.
Solution Approach 2:
The patent implements an inert environment by using a vacuum (absence of atmospheric gases) inside the enclosure. This inert internal environment serves dual purposes: it provides excellent sound baffling effectiveness by eliminating sound transmission through air, and it reduces internal pressure forces that would otherwise compromise the enclosure's structural integrity against the external atmospheric pressure.
Data Source
AI summary
A sound or thermal baffling device comprising an enclosure containing a variable density fluid and a force generating means for preserving and creating the structure and form of the enclosure, the shape and composition of the enclosure crafted to vary the baffling characteristics of the enclosure, and a further embodiment showing how a cellular material containing a variable density fluid may be created and used, and a still further embodiment showing improvements to ear protectors and head phone sets, including latching means for attaching these and other devices to the ears and head. Various applications involving previous as well as new uses are set out, including a description of how dynamic sound baffling may be implemented.