- 专利标题： Hearing protector with compartment for rechargeable battery pack
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申请号： US15548039申请日： 2016-01-27
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公开(公告)号： US10172742B2公开(公告)日： 2019-01-08
- 发明人: Douglas D. Fletcher , Oscar M. Hemberg , Eric O. Hemberg
- 申请人： 3M INNOVATIVE PROPERTIES COMPANY
- 申请人地址： US MN St. Paul
- 专利权人： 3M Innovative Properties Company
- 当前专利权人： 3M Innovative Properties Company
- 当前专利权人地址： US MN St. Paul
- 代理商 Kevin Weber
- 国际申请： PCT/US2016/015037 WO 20160127
- 国际公布： WO2016/126476 WO 20160811
- 主分类号： A61F11/14
- IPC分类号： A61F11/14 ; H04R1/10 ; H04R3/00
摘要：
A hearing protection device is provided. The hearing protection device can include a speaker to relay sounds, such as conversations, to the user of the hearing protection. The hearing protection device can be powered by a rechargeable battery pack or separately by standard batteries.
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