Patents by Inventor Mack Spetalnik

Mack Spetalnik 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: 4165797
    Abstract: A loudspeaker system providing multi-directional sound distribution throughout all listening areas of a room. The system includes a housing with at least four high frequency loudspeakers arranged symmetrically about the center of the front section. High frequency sound is beamed from the loudspeakers at pre-determined angle toward the walls, floor, and ceiling of a room in order to optimize sound dispersion throughout the room. Each inclined panel is pivotally mounted to the housing and the housing includes an adjustment means for varying the incline of the panel. The loudspeaker system can thus be adjusted to disperse sound in a desired pattern which is selected depending on the shape of the room. The room may thus be fully saturated with high frequency sound which is normally directional in nature.
    Type: Grant
    Filed: April 19, 1978
    Date of Patent: August 28, 1979
    Inventor: Mack Spetalnik