Patents by Inventor Timothy P. Isaacs

Timothy P. Isaacs 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).

  • Sound projection system
    Patent number: 4181193
    Abstract: A sound projection system comprising means defining a longitudinally extending acoustic channel which is acoustically open at a front end of the channel and acoustically closed at a rear end and at sides of the channel, a loudspeaker having a cone diaphragm operating into the channel at the rear end of the channel, and a longitudinally extending member mounted within the channel directly in front of, and in alignment with, the loudspeaker so as to restrict the free space within the channel, the cross-sectional area of said member varying along its length.
    Type: Grant
    Filed: September 16, 1977
    Date of Patent: January 1, 1980
    Inventor: Timothy P. Isaac
  • Sound projection system
    Patent number: RE32183
    Abstract: A sound projection system comprising means defining a longitudinally extending acoustic channel which is acoustically open at a front end of the channel and acoustically closed at a rear end and at sides of the channel, a loudspeaker having a cone diaphragm operating into the channel at the rear end of the channel, and a longitudinally extending member mounted within the channel directly in front of, and in alignment with, the loudspeaker so as to restrict the free space within the channel, the cross-sectional area of said member varying along its length.
    Type: Grant
    Filed: August 2, 1983
    Date of Patent: June 17, 1986
    Assignee: Turbosound Group Ltd.
    Inventor: Timothy P. Isaacs