Patents Assigned to Willy De Roode
  • Process for rendering harmless dangerous chemical waste
    Patent number: 4855082
    Abstract: Organic or inorganic chemical waste material is incorporated in ordinary silica-glass by mixing the two in liquid condition under pressure in a container, and thereafter cooling the mixture and solidifying it in shapes like cylinders, rods or pellets. The container may be a rotary mixing cylinder, a stationary extruder, or for inorganic material, a widened portion of a glass supply conduit wherein the mixture is vibrated.
    Type: Grant
    Filed: September 5, 1984
    Date of Patent: August 8, 1989
    Assignee: Willy De Roode
    Inventor: Machiel N. Duivelaar