Invention Grant
- Patent Title: Concha-fit electronic hearing protection device
- Patent Title (中): Concha-fit电子听力保护装置
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Application No.: US14082670Application Date: 2013-11-18
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Publication No.: US09479859B2Publication Date: 2016-10-25
- Inventor: Paul D. Henry , Michael J. Pescetto
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee Address: US MN St. Paul
- Main IPC: H04R25/00
- IPC: H04R25/00 ; H04R1/10 ; A61F11/08 ; A61F11/14
Abstract:
A concha-fit electronic hearing protection device including an eartip and an earpiece body. When the device is fitted in the ear of a user, the eartip externally occludes the ear canal and the earpiece body internally occludes the eartip.
Public/Granted literature
- US20150139474A1 CONCHA-FIT ELECTRONIC HEARING PROTECTION DEVICE Public/Granted day:2015-05-21
Information query
