Acoustical earmuff

Details Acoustical earmuff Acoustical earmuff

A - Human Necessities

61

F

A61F 11/14 (2006.01) C08G 18/48 (2006.01) C08G 18/66 (2006.01)

Patent

CA 2160870

An earmuff cushion providing improved attenuation is described. The cushion is a foam material having a low static stiffness, and a high dynamic stiffness, which produces improved attenuation in the earmuff in which it is used. Earmuffs made from the cushion and improved methods of making the cushion and the earmuffs are also described.

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