US 12,383,432 B2
Hearing protection device
Olav Kvaløy, Oslo (NO); Erik Swendgaard, Oslo (NO); Odd Kr. Ø Pettersen, Oslo (NO); and Håkon Aurvik, Oslo (NO)
Assigned to MINUENDO AS, Oslo (NO)
Appl. No. 17/757,927
Filed by MINUENDO AS, Oslo (NO)
PCT Filed Dec. 22, 2020, PCT No. PCT/GB2020/053341
§ 371(c)(1), (2) Date Jun. 23, 2022,
PCT Pub. No. WO2021/130482, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 1919221 (GB), filed on Dec. 23, 2019; and application No. 2013084 (GB), filed on Aug. 21, 2020.
Prior Publication US 2023/0021291 A1, Jan. 19, 2023
Int. Cl. A61F 11/08 (2006.01)
CPC A61F 11/085 (2022.01) 28 Claims
OG exemplary drawing
 
1. A device, for insertion into an ear canal of a mammalian subject, comprising:
a body, having a sound path extending therethrough;
a tensioned membrane in the sound path comprising at least one corrugation; and
an adjustable member arranged to bear against the tensioned membrane to adjust the tension of the tensioned membrane and thereby to alter an acoustic response of the sound path.