Patents by Inventor Jury Vasilievich Smirnov

Jury Vasilievich Smirnov 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: 4049926
    Abstract: A ribbon loudspeaker, according to the invention, comprises permanent magnets spaced from each other along an axis and making up a magnetic system, and sound-reproducing ribbons freely vibrating, independent of each other placed in a working gap between the poles of permanent magnets. The side surfaces of the permanent magnets are made convex and spaced from the axis, whereas their pole surfaces are made concave and spaced along the axis. The permanent magnets are magnetized by way of separate magnetization of their central parts in the plane of a sound-reproducing ribbon and portions adjoining their side surfaces. The proposed ribbon loudspeaker ensures higher fidelity of sound.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: September 20, 1977
    Inventors: Alexei Fedoseevich Kasatkin, Jury Vasilievich Smirnov, Ilya Afanasievich Feldman
  • Patent number: 4001523
    Abstract: According to the invention, the ribbon loudspeaker comprises permanent magnets defining a magnetic system and ribbons for sound reproduction received in the working gap between the pole faces of the permanent magnets. The electrically conductive layer of the sound reproducing ribbon has its thickness increasing from the lateral edges thereof, disposed adjacent to the pole faces of the permanent magnets, to the center portion thereof. The disclosed ribbon loudspeaker improves the quality of sound reproduction.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: January 4, 1977
    Inventors: Alexei Fedoseevich Kasatkin, Jury Vasilievich Smirnov, Ilya Afanasievich Feldman
  • Patent number: 4001522
    Abstract: According to the invention, the ribbon type loudspeaker comprises permanent magnets defining a magnetic system and sound reproducing ribbons extending in the working gaps between the pole pieces of the permanent magnets. The sound reproducing ribbon is made up of individual conductive strips applied onto a dielectric backing parallel with one another, with spaces left therebetween, longitudinally of the sound reproducing ribbon. The disclosed ribbon type loudspeaker enables improvement of the quality of sound reproduction and simultaneously prolongs the service life of the loudspeaker.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: January 4, 1977
    Inventors: Alexei Fedoseevich Kasatkin, Jury Vasilievich Smirnov, Ilya Afanasievich Feldman