HEARING AID BATTERY DOOR SEAL
    1.
    发明专利

    公开(公告)号:CA2447284A1

    公开(公告)日:2004-04-30

    申请号:CA2447284

    申请日:2003-10-30

    Abstract: A hearing aid having a battery door seal that substantially reduces or eliminates unwanted air flow from and into a battery compartment is provided . Eliminating unwanted air flow removes a potential source of acoustic feedbac k and provides significant improvement in frequency response of the hearing aid. T he hearing aid includes a battery compartment with sidewalls that have a step joint formed between an opening in a faceplate to the battery compartment and a substantially flat portion of the sidewalls. The battery door has a lip that sets on the step joint when the battery door closes providing an air seal around a substantial portion of the battery compartment. A thin slit is provided between the faceplate and the battery door behind the end of the battery door, where the battery door is connected to the faceplate by a hinge to provide appropriate air flow for proper battery operation.

    3.
    发明专利
    未知

    公开(公告)号:AT524935T

    公开(公告)日:2011-09-15

    申请号:AT03256911

    申请日:2003-10-31

    Abstract: A step joint (150) forms a ridge between the opening in the faceplate (110) and flat portion (140) of the sidewalls to couple with the flat portion of the sidewalls. A lip (170) protruding from the surface of the battery door (130) sets into the ridge to provide a air seal around battery compartment when the battery door is closed. An independent claim is also included for method for housing battery in hearing aid.

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