Hearing protection device with damped material

Details Hearing protection device with damped material Hearing protection device with damped material

A - Human Necessities

61

F

A61F 11/08 (2006.01)

Patent

CA 2594960

The invention provides a hearing protection device having an attenuating body composed of an elastomer with an increased glass transition temperature and a reduced glass-to-rubber transition temperature such that the damping factor of the material peaks at a higher temperature and, resultantly, the damping factor is increased over a range of temperatures and frequencies typically experienced by the device during usage. The increased damping results in higher sound attenuation provided by the hearing protection device.

L'invention porte sur une protection auditive munie d'un corps insonorisant composé d'un élastomère à température de transition vitreuse accrue et température de transition verre caoutchouc réduite, d'où un facteur d'atténuation maximum aux températures élevées et par conséquent accru pour les gammes de températures et de fréquence normalement rencontrées lors de l'utilisation du dispositif, et une meilleure atténuation des bruits.

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