Patents by Inventor Erwin W. Weiss

Erwin W. Weiss has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4870689
    Abstract: An ear wax barrier for a hearing aid to prevent ear wax from contacting and damaging the internal components of a hearing aid or hearing aid receiver. The barrier includes a housing defining a central axis of passage, as well as a plurality of projections and a variable acoustic attenuator. The projections extend inwardly from the interior surface of the housing, each projection partially occluding the cross-sectional area of the housing. The projection provides a tortuous path for ear wax migrating into the hearing aid. The variable acoustic attenuator and the projections provide a constricted passageway for damping of the acoustic response of the hearing aid.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: September 26, 1989
    Assignee: Beltone Electronics Corporation
    Inventor: Erwin W. Weiss