Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent
1989-10-04
1991-03-26
Fuller, Benjamin R.
Acoustics
Anatomic or prosthetic relation
Ear and mouth
181135, 381 686, H04R 2502
Patent
active
050021516
ABSTRACT:
Disposably attached to the ear piece of a hearing aid, which includes any sound transmission device, is a user-disposable sleeve comprising soft polymeric retarded recovery foam that can be compressed to be freely insertable into a person's ear and allowed to recover to become wedged in the canal. Preferably, the sleeve is disposably attached to the ear piece by mating of screw threads on the sleeve and the ear piece. The ear piece may be a separate component from the hearing aid. The component is made either of rigid or flexible plastic and has connecting portions of various lengths depending on the depth of insertion of the sleeve into the canal. The sleeve may be of various lengths depending on the depth of insertion into the ear canal desired. The sleeve/ear piece assembly may also have a layer of sound transmitting scrim over its central opening to minimize penetration of the connecting portion past the end of the sleeve.
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Babcock Martin P.
Chamberlin Davis W.
Oliveira Robert J.
Fuller Benjamin R.
Hornickel John H.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Sell Donald M.
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