Ear Protector With A Sound Damping Filter, Sound Damping Filter For Such An Ear Protector
Patent No. EP3195839 (titled "Ear Protector With A Sound Damping Filter, Sound Damping Filter For Such An Ear Protector") was filed by Dynamic EAR on Dec 7, 2010. The application was issued on Apr 6, 2022.
Patent Summary
An ear protector (1) comprises an earpiece (2) featuring a sound damping filter (3) with a membrane (5) mounted on a membrane support (6). The support (6) is positioned within a sound channel (7) connecting the protector's inside (8) and outside (9). The membrane (5) consists of a non-porous material that prevents liquid water transmission from the outside (9) to the inside (8) while enabling water vapor transport from the inside (8) to the outside (9) via an absorption and evaporation process. This design overcomes microporous membrane limitations, such as pore contamination and delamination, to provide simultaneous sound attenuation and moisture transfer. Optional deflection limiters may be employed to enhance sound damping against heavy acoustic waves.
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Date
Description
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EP3195839
- Application Number
- EP17160567A
- Filing Date
- Dec 7, 2010
- Status
- Granted And Under Opposition
- Mar 4, 2022
- Publication Date
- Apr 6, 2022
- External Links
- Slate, Register , Google Patents