Patent ID: 6512834
Filing Date: 2003-01-28
Classification: H04R

Abstract:
A sound-transmissive protective cover assembly, consisting essentially of:(a) at least one microporous membrane having an inner unbonded region and a periphery bonded region; and (b) at least one adhesive support system, said at least one membrane being bonded around its periphery to said at least one adhesive support system such that at least a portion of said inner unbonded region of the membrane is exposed to the atmosphere and free to move in response to acoustic energy, said assembly having an instantaneous water entry pressure of at least one meter water column and an overall acoustic transmission loss of no more than 3 dB in the range of frequencies from 300 to 3000 Hz, wherein the assembly further comprises an acoustic gasket; and wherein the acoustic gasket is bonded to and coextensive with the at least one adhesive support system so as to not impede independent movement of the membrane in the unbonded region.