Patent · US Active

System for forming a hearing protector, ear cup in such a system, and hearing protector formed by such a system

US8223984B2 · kind B2 · utility

9Cited by

2References

10Claims

0Family size

Assignee

MSA SORDIN AB · SE

Inventors

Anders Roos · Värnamo, SE
Joakim Birgersson · Ronneby, SE
Håkan Davidsson · Ronneby, SE

Key dates

Filing date	Feb 6, 2008
Grant date	Jul 17, 2012
Priority date	—
Expiry date	Nov 23, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04R5/033
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A system for forming hearing protectors, an ear cup of such a system and a hearing protector formed from such a system. The system includes a number of first ear cups and a number of second ear cups, the first and second ear cups having noise-reducing spaces of different size, and at least one electronic unit with at least one speaker. This system allows the same type of electronic unit to be used for ear cups with different degrees of noise attenuation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.