Patents Assigned to Th Boeing Company
  • Resistance welding of thermoplastics in aerospace structure
    Patent number: 7126096
    Abstract: Rib and spar webs are joined in a composite wingbox to eliminate fasteners by welding the webs along bondlines defined by overlapping sections of the webs. Heat to produce the weld is generally achieved resistively by connecting a multistrip susceptor positioned along the bond line to a current source, since the geometry makes it difficult to heat these web joints inductively. The wingbox is completed without fasteners by welding skins to the rib-spar wingbox.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 24, 2006
    Assignee: Th Boeing Company
    Inventors: Marc R. Matsen, Douglas A. McCarville, Michael M. Stepan