Patents Assigned to Metri Airfluid AG
  • Method and apparatus for electrostatic coating of workpieces with powdered material
    Patent number: 5173326
    Abstract: A method and an apparatus for electrostatic coating of workpieces with powdered material includes a plurality of successively arranged spray guns which are passed by the workpieces. At least the spray gun which is passed first by the workpieces is charged with recycled powder while at least the spray gun which is passed last by the workpieces is charged with fresh powder in form of a powder-air mixture containing a low amount of air and supplied at low velocity.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: December 22, 1992
    Assignee: Metri Airfluid AG
    Inventor: Erich Kramer
  • Apparatus for fluidizing and transferring powdered material
    Patent number: 5159765
    Abstract: Apparatus for fluidizing powdered material within a container and transporting fluidized powder directly to a spray gun of an electrostatic powder coating plant includes a strainer basket which surrounds at a distance thereto the part of the suction and transport pipe immersing in the fluid bed, with the air outlet openings of the fluidizing unit being arranged laterally outside of the strainer basket and/or therebelow.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: November 3, 1992
    Assignee: Metri Airfluid AG
    Inventor: Erich Kramer