Apparel – Head coverings – Convertible
2 6, 2423, A42B 106
A flexible harness for holding earcups in position about the ears of the rer which extends from one side of the wearer's head around the neck to the other side of the head. The harness, which is secured within a rigid protective helmet, has two U-shaped end portions and a nape portion. Drawstrings are sewn onto each side of each U-shaped end portion and are connected to the opposing length of drawstring by an adjustable fastener. The drawstrings engage a channel on the periphery of each earcup and allow for the vertical and rotational adjustment in the position of the earcup.
patent: 3005203 (1961-10-01), Aileo
patent: 3400406 (1968-09-01), Aileo
patent: 3470564 (1967-11-01), Aileo
patent: 3530509 (1970-09-01), Simpson et al.
patent: 3619814 (1969-12-01), Aileo
Gibson Robert P.
Kravitz J. L.
Lane Anthony T.
Schroeder Werner H.
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