Patents by Inventor Douglas H. M. Brooks

Douglas H. M. Brooks has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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