Patents by Inventor Jose Juan Bertagni

Jose Juan Bertagni 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).

  • Planar diaphragm
    Patent number: 4003449
    Abstract: A planar diaphragm, preferably for loudspeakers where, on the rear face side there is an asymmetrically shaped sound producing portion, surrounded by marginal and channel shaped portions to assure that sound waves generated by said sound producing portion will not trespass said portion, and said marginal portion is provided plugs of different density than said diaphragm, to modify the vibratory characteristic of the sound producing portion and thereby improve the response curve.
    Type: Grant
    Filed: November 26, 1975
    Date of Patent: January 18, 1977
    Inventor: Jose Juan Bertagni