Invention Grant
- Patent Title: Hearing protector having a unidirectional sound inlet
-
Application No.: US15733186Application Date: 2018-12-06
-
Publication No.: US11744738B2Publication Date: 2023-09-05
- Inventor: Per Ove Almeflo
- 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
- Agent Katherine M. Scholz
- Priority: EP 206065 2017.12.08
- International Application: PCT/IB2018/059737 2018.12.06
- International Announcement: WO2019/111214A 2019.06.13
- Date entered country: 2020-06-05
- Main IPC: A61F11/14
- IPC: A61F11/14 ; H04R1/10

Abstract:
There is provided a hearing protector that has an earmuff (2) formed by a cup-shaped shell and a cushion. The hearing protector has a sound inlet (5) formed of at least one acoustic membrane that replaces a portion of the shell or by a hole into the cushion. The sound inlet locally reduces the sound barrier of the hearing protector predominantly with respect to sound originating from an anterior direction (11) that is defined in accordance to on the anatomic directions of a wearer when the hearing protector is worn. The present disclosure helps enabling directional hearing with a hearing protector.
Information query
IPC分类: