Patents by Inventor Vassil Vladimirov Vassilev

Vassil Vladimirov Vassilev 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).

  • Material treating apparatus including pneumo-hydraulic vibrator
    Patent number: 4070275
    Abstract: Material treating apparatus including one or more pneumohydraulic vibrators. The apparatus includes a container with cells separated by at least one valve lying on a supporting frame, the valve having a movable valve element which is urged toward its valve-closed position by springs. On one side of the valve there is an air cell connected with a source of air under pressure, and on the other side of the valve there is a second cell containing a liquid or a liquid suspension of material to be treated. When the air cell is subjected to air under pressure the movable valve element vibrates and generates intensive vibro-pulsation turbulent streams in the liquid material in the second cell.
    Type: Grant
    Filed: May 20, 1976
    Date of Patent: January 24, 1978
    Assignee: Vish Minno-Geoloshki Institute-Nis
    Inventors: Stoycho Mitrev Stoev, Metodi Stoyanov Metodiev, Lyubomir Vladimirov Kuzev, Petko Georgiev Vedrichkov, Ivan Mitrev Sapunarov, Vassil Vladimirov Vassilev, Spas Petkov Dimitrov, Vihar Assenov Gasharov, Sheko Kolev Russev, Kostadin Georgiev Mitrev
  • Material treating apparatus including pneumo-hydraulic vibrator
    Patent number: 4060481
    Abstract: Material treating apparatus including one or more pneumohydraulic vibrators. The apparatus includes a container with cells separated by at least one valve lying on a supporting frame, the valve having a movable valve element which is urged toward its valve-closed position by springs. On one side of the valve there is an air cell connected with a source of air under pressure, and on the other side of the valve there is a second cell containing a liquid or a liquid suspension of material to be treated. When the air cell is subjected to air under pressure the movable valve element vibrates and generates intensive vibro-pulsation turbulent streams in the liquid material in the second cell.
    Type: Grant
    Filed: May 20, 1976
    Date of Patent: November 29, 1977
    Assignee: Vish Minno-Geoloshki Institute - NIS
    Inventors: Stoycho Mitrev Stoev, Metodi Stoyanov Metodiev, Lyubomir Vladimirov Kuzev, Petko Georgiev Vedrichkov, Ivan Mitrev Sapunarov, Vassil Vladimirov Vassilev, Spas Petkov Dimitrov, Vihar Assenov Gasharov, Sheko Kolev Russev, Kostadin Georgiev Mitrev