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Ear protector with a sound damping filter, sound damping filter for such an ear protector as well as method for manufacturing a sound damping filter for such an ear protector
专利权人:
Engbert Wilmink
发明人:
Engbert Wilmink
申请号:
US13516298
公开号:
US08689931B2
申请日:
2010.12.07
申请国别(地区):
US
年份:
2014
代理人:
摘要:
An ear protector (1) with a sound damping filter (3), comprises a membrane (5). The membrane is composed of a material that permits the transmission of air and water vapor with respect to the ear from the into the outside of the ear protector, the membrane is pre stressed mounted in the filter, enabling a bigger surface and hence bigger air and water transport at same sound attenuation.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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