Patents Assigned to ROYAL GROUP TECHNOLOGIES
  • Intumescent floor opening frame
    Publication number: 20040016191
    Abstract: A frame for bordering conduit access through a building floor has a rigid body portion and a lining of intumescent material on an interior surface of the rigid body portion. The intumescent material has sufficient expansion capacity to close off the opening through the frame under conditions which produce an intumescing of the lining. The rigid body portion itself is preferably made of a metallic material to enhance transfer of heat energy from the rigid body portion to the lining of the frame.
    Type: Application
    Filed: October 1, 2002
    Publication date: January 29, 2004
    Applicant: ROYAL GROUP TECHNOLOGIES
    Inventor: Larry Whitty