Ear protecting device

Details Ear protecting device Ear protecting device

1982-08-23

1984-07-17

Schroeder, Werner H.

Apparel

Head coverings

Convertible

2208, 181 20, 181256, A42B 106

Patent

active

044597070

ABSTRACT:
An ear protecting device for protecting a wearer from annoying and/or damaging noise levels. The device is comprised of a connecting member and a pair of muffs suitable for covering a wearer's ears. The muffs are suspended from opposite portions of the connecting member. The muffs are permeable to water vapor. Each said muff is at least partially porous. Each said muff has a specific airflow resistance of at least 15,000 SI rayls. Each said muff has a permeance of at least 2 metric perms.

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Journal of the Acoustical Society of America, vol. 15, No. 3, pp. 158 & 159, Jan. 1944.
Journal of the Acoustical Society of America, vol. 27, pp. 146 & 147, Jan. 1955.

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