Patents by Inventor Marvin Torffield

Marvin Torffield 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: 4190739
    Abstract: Sound reproduction systems using sound reflectors and the reflectors for the same are disclosed. Passive reflectors for redirecting sound from speakers spaced therefrom are described in several configurations. Two horizontally spaced loudspeakers, direct sound to two reflective surfaces. The surfaces are contoured to redirect the sound to a listening area. The surfaces can be smooth and substantially larger than the speakers. Reflectors that are partly or entirely roughened across their reflective surface disperse sound, particularly high frequencies, and give a large, stable acoustic image.
    Type: Grant
    Filed: September 26, 1978
    Date of Patent: February 26, 1980
    Inventor: Marvin Torffield