Patents by Inventor Gerard S. Mindel

Gerard S. Mindel 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: 4870691
    Abstract: A method and apparatus for sound reproduction wherein a load and dispersion cell is provided. The cell comprises walls to enclose transducer means. The transducer means have front and back surfaces and are secured within the walls. The walls form an elongated narrow sound emitting slot. The slot is spaced from and extends parallel to and over the lengthwise center of the front surface of the transducer means. The slotted cell spreads the field of sound generated by the transducer in a direction perpendicular to the longitudinal axis of the slot and loads the transducer to lower its resonance. The cell in accordance with the present invention extends the low frequency response and provides more uniform dispersion of sound.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: September 26, 1989
    Inventor: Gerard S. Mindel