1978-04-10
1979-05-22
Cooper, William C.
H04R 110
Patent
active
041561180
ABSTRACT:
An audiometric headset having a transducer mounting and sound insulation system which closely couples the transducer to the ear. The headset is comprised of a pair of domes having a soft foam liner and soft sponge sound-absorbent material surrounding a floating sound transducer mounted in an open side of the case. The sound transducer is mounted in a socket of a circular resilient hub supported on a resilient flange by a pair of resilient strips providing a semi-circular opening between the interior of the case and the exterior of the earpiece. The resilient flange provides a channel for mounting on a rim around the periphery of the opening in the dome or case. An ear cushion snap-locked into a channel surrounding the socket supporting the transducer closely couples the transducer to the ear. A resilient earmuff is mounted around the rim of the case opening and is filled with a sound-filtering soft material whereby the muff seals around the ear to eliminate external ambient noise.
REFERENCES:
patent: 3220505 (1965-11-01), Hargrave
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