Patents Assigned to Dresser-Shaw Company
  • Method of cooling coated pipe
    Patent number: 6270847
    Abstract: Pipe coated with a hot plastic coating is cooled by applying a liquid cooling medium to the interior of the pipe. The cooling medium may be applied from a lance or pressurised cart that is stationary relative to the surroundings and moves internally relative to sections of pipe that pass successively through coating and cooling stations.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: August 7, 2001
    Assignee: Dresser-Shaw Company
    Inventors: Dennis T. Wong, Jiri F. Holub, Louis Lemenn, Richard A. Johnston