Patents by Inventor Menelaos S. Kafkalidis

Menelaos S. Kafkalidis 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).

  • Composite tube having co-bonded end fittings
    Patent number: 8713895
    Abstract: A structural member such as a strut includes a composite material tube having metal end fittings that are attached to the tube by co-bonded, double shear joints. The double shear bond joint construction reduces the residual stress on the bonds that result from mismatch of the coefficients of thermal expansion of the composite tube and the metal end fittings. The ends of the fittings that are bonded to the tube may include a stepped profile that functions to limit the peak stresses in the bonds.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: May 6, 2014
    Assignee: The Boeing Company
    Inventors: Christopher T. Allen, Patrick D. Bertrand, Derek J. Fox, William B. Grace, Kenneth M. Harrison, Wesley L. Holman, Menelaos S. Kafkalidis, James R. Schnelz, Edward M. Fisher
  • Composite tube having co-bonded end fittings
    Patent number: 8365502
    Abstract: A structural member such as a strut includes a composite material tube having metal end fittings that are attached to the tube by co-bonded, double shear joints. The double shear bond joint construction reduces the residual stress on the bonds that result from mismatch of the coefficients of thermal expansion of the composite tube and the metal end fittings. The ends of the fittings that are bonded to the tube may include a stepped profile that functions to limit the peak stresses in the bonds.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: February 5, 2013
    Assignee: The Boeing Company
    Inventors: Christopher T. Allen, Patrick D. Bertrand, Derek J. Fox, William B. H. Grace, Kenneth M. Harrison, Wesley L. Holman, Menelaos S. Kafkalidis, James R. Schnelz, Edward M. Fisher