Patents Assigned to Blacknell Buildings Limited
  • Method of joining members
    Patent number: 4390578
    Abstract: Two members 2, each located in a heat sealable sheath 4, are joined together to form a right-angle joint. Two plates 8 of heat sealable material are attached to the associated ends 6 of the members 2 by means of dowels 10 inserted into holes 12 in the member ends. The outer surface 14 of each plate 8 is flush with its associated sheath end 4. The mounted plates 8 are hot-plate welded and then pressed together with the ends of the sheaths 4 to form the joint. The plates 8 provide additional strength to the joint.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: June 28, 1983
    Assignee: Blacknell Buildings Limited
    Inventor: Douglas H. M. Brooks