- Patent Title: Loudspeaker membrane and method for manufacturing such a membrane
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Application No.: US14650727Application Date: 2013-12-24
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Publication No.: US09633648B2Publication Date: 2017-04-25
- Inventor: Bruno De La Nouvelle , Shintaro Hosoi
- Applicant: FOCAL JMLAB
- Applicant Address: FR La Talaudiere
- Assignee: FOCAL JMLAB
- Current Assignee: FOCAL JMLAB
- Current Assignee Address: FR La Talaudiere
- Agency: Harrus Beach PLLC
- Priority: FR1350116 20130107
- International Application: PCT/FR2013/053266 WO 20131224
- International Announcement: WO2014/106713 WO 20140710
- Main IPC: H04R7/10
- IPC: H04R7/10 ; G10K13/00 ; B29C70/40 ; H04R7/12 ; B29L31/34
Abstract:
The invention relates to a loudspeaker membrane having a sandwich structure, having a central web separating two layers of material based on high-rigidity threads impregnated with a polymer resin, characterized in that the central web is formed from a layer of material based on oriented natural fibers that are impregnated with a polymer resin.
Public/Granted literature
- US20150317972A1 LOUDSPEAKER MEMBRANE AND METHOD FOR MANUFACTURING SUCH A MEMBRANE Public/Granted day:2015-11-05
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