Patents Assigned to Noordvos Schroeven B.V.
  • Propeller for distributing a gaseous, powdered or liquid material in a liquid
    Patent number: 4371480
    Abstract: Apparatus and propeller for distributing a gaseous, liquid or powdered material in a liquid by rotation in the liquid of a propeller having two or more blades. The blades have a perforated hollow portion connected to a source for the gas. The propeller is rotated at a cavitation producing velocity, and for the distribution of the material in the liquid use is made of the pressures occurring upon the implosion of the cavitations.
    Type: Grant
    Filed: October 16, 1979
    Date of Patent: February 1, 1983
    Assignee: Noordvos Schroeven B.V.
    Inventor: Geert H. Vos