Patents Assigned to Dynatrans Technology, Ltd.
  • Method of manufacturing tanks, containers, pipes, etc.
    Patent number: 4579617
    Abstract: Tanks, containers, pipes, etc., of sandwich construction may be manufactured by winding an inner sheet (3) onto a rotating mandrel (1), by then winding a hard insulation (8) which has been softened by heating in a microwave oven (9) onto the adhesive-coated inner sheet, and finally by winding a cover sheet (12) onto the adhesive-coated insulation layer.
    Type: Grant
    Filed: June 19, 1984
    Date of Patent: April 1, 1986
    Assignee: Dynatrans Technology, Ltd.
    Inventors: Lars-Gunnar Oberg, Bo W. Carlsson, Anders Bjurling