Patent ID: 8360068

Claim:
An ear cup for use in a hearing protector unit including two ear cups, and a device to fasten the hearing protector unit to a wearer's head, the device being connected to the ear cups, the ear cup comprising: a cup portion having an innermost diameter surface and an outer surface; and a sealing device intended to bear against a wearer's head in an area around an ear of the wearer, the sealing device including: a sealing portion of a soft material, which includes a peripherally extending circumference slot and which, in its periphery area, bears against said inner diameter surface with an opening of the circumference slot directed towards the cup portion, a sound-attenuating ring, situated in the circumference slot of the sealing portion, and a clamping ring of a rigid material, the clamping ring having an outermost surface secured entirely along the innermost diameter surface of the cup portion situated in the circumference slot of the sealing portion to expand the sealing portion produced from soft material, the sealing portion being provided with a peripherally horizontally extending flange, introduced in the cup portion such that the clamping ring bears against the inner diameter surface of the cup portion, the inner diameter surface being a surface of the cup portion pointing towards a center of the cup portion, whereby the clamping ring bears against the flange and presses the flange against the inner diameter surface of the cup portion for fastening the sealing device to the cup portion.