Apparatus for closing openings of a hearing aid or an ear adaptor for hearing aids
AssigneeSiemens Aktiengesellschaft
InventorChristof Haertl
Life of this patent
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Abstract
An apparatus for closing an opening of a hearing aid or an ear adaptor for a hearing aid, particularly openings such as sound entry openings, sound exit openings and aeration openings utilizes a micro-porous membrane of an anti-adhesive material which is introduced into the respective opening. Preferably, the membrane is polytetrafluoroethylene material.
Claims4
An apparatus for closing openings in a housing of hearing aids and parts of hearing aids, said openings being selected from a group consisting of sound entry, sound exit and aeration openings, said apparatus comprising a cap being mounted on the housing to close the opening, said cap having an opening for the transmission of sound and air through the cap, said cap having means for preventing moisture, sweat and cerumen from passing through said opening in the cap, said means being a microporous membrane of a hydrophobic material extending across the opening of the cap, said material of the membrane being a microporous polytetraflourethylene.
Dependencies are inferred from the claim text.