Surgery – Body protecting or restraining devices for patients or infants – Head or face protector
Patent
1996-10-21
1999-05-18
Brown, Michael A.
Surgery
Body protecting or restraining devices for patients or infants
Head or face protector
128865, A61F11/00
Patent
active
059041439
ABSTRACT:
A foam earplug for reception at least partially within the ear canal, including a body portion formed of resilient foam plastic material. The foam material has an open cell structure, a size and shape for at least partial reception within the ear canal. The earplug has an outer thin coating of a non-permeable elastomeric material and with the coating forming a skin bonded on the body portion, non-permeable to air, at least in the area of the body portion received within the ear canal for providing an increase in attenuation of sound as compared with the attenuation of sound produced by resilient foam plastic material without the thin coating of the non-impermeable elastomeric material.
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Magidson Mark
Young Steve
Brown Michael A.
Schwartz Charles H
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