Apparel – Head coverings – Convertible
Patent
1991-07-02
1992-08-18
Schroeder, Werner H.
Apparel
Head coverings
Convertible
2413, A42B 106
Patent
active
051387220
ABSTRACT:
An ear seal for use with an earcup of a headset. The ear seal includes at least one ring of noise attenuating material, the material being a mixture of a dilatant silicone compound and a silicone fluid. A sheath is provided to enclose the ring of noise attenuating material. A ring of soft compliant material may also be used adjacent the ring of noise attenuating material for added comfort to the user. A sheath may be provided to enclose both the ring of soft compliant material and the ring of noise attenuating material.
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Urella Richard M.
Van Lennep William B.
Biefeld Diana L.
David Clark Company Inc.
Schroeder Werner H.
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