Earseal for sound-attenuating earcup assembly
AssigneeGentex Corporation
InventorsJackson A. Aileo, Richard J. Long
Life of this patent
Estimating the term…
Abstract
A resilient annular earseal for sealing the region between an earcup shell and a wearer's head is formed with an aperture for receiving the wearer's ear and has an outer peripheral portion projecting a predetermined first distance toward the wearer's head and an inner peripheral portion projecting a predetermined second distance toward the wearer's head that is appreciably greater than the first distance. Since the inner peripheral portion contacts the wearer's head along a strip that is closer to the ear, and hence more predictable in its three-dimensional contour, it forms an effective seal around the entire periphery of the ear.
Claims14
An earcup assembly including in combination a shell adapted to fit over a wearer's ear, and a resilient annular earseal for sealing the region between said shell and the wear's head, said earseal being formed with an aperture for receiving the wearer's ear and having an outer peripheral portion of a predetermined thickness and a projecting inner peripheral portion of a greater thickness, the annular width of the inner peripheral portion being generally less than that of the outer peripheral portion.
A resilient annular earseal for sealing the region between an earcup shell and a wearer's head, said earseal being formed with an aperture for receiving the wearer's ear and having an outer peripheral portion of a predetermined thickness and a projecting inner peripheral portion of a greater thickness, the annular width of the inner peripheral portion being generally less than that of the outer peripheral portion.
Dependencies are inferred from the claim text.