Patents Assigned to McConnell Dowell Constructors Limited
  • Joining means and method for joining metal members
    Patent number: 4640532
    Abstract: The invention comprises a coupler used in pairs for joining the ends of two metal members such as pipes by welding. Each coupler has a slot with an external passage to act as a heat barrier to prevent the flow of heat from the welded connection between two couplers to a heat sensitive liner adjacent a surface opposite to that of the weld. The liner is locked into a rebate in the coupler and each coupler is positively aligned with the other.
    Type: Grant
    Filed: December 5, 1983
    Date of Patent: February 3, 1987
    Assignee: McConnell Dowell Constructors Limited
    Inventor: Paul B. Pope