Patents by Inventor John H. Polk

John H. Polk 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).

  • Publication number: 20090173826
    Abstract: The invention is directed a trapezoidal panel pin joint for allowing deflection of an aircraft between a fuselage section and a wing section, wherein the pin joint comprises a vertical pin portion, a lug portion, and a clevis portion; wherein at least one vertical flexible tee member is positioned below the pin joint; and wherein the pin joint is coupled to at least two horizontal flexible tee members, such that the pin joint and vertical and horizontal flexible tee members, in combination, release two rotational degrees of freedom.
    Type: Application
    Filed: September 15, 2006
    Publication date: July 9, 2009
    Inventors: Patricia W. Estell, John H. Polk
  • Patent number: 7546979
    Abstract: The invention is directed a trapezoidal panel pin joint for allowing deflection of an aircraft between a fuselage section and a wing section, wherein the pin joint comprises a vertical pin portion, a lug portion, and a clevis portion; wherein at least one vertical flexible tee member is positioned below the pin joint; and wherein the pin joint is coupled to at least two horizontal flexible tee members, such that the pin joint and vertical and horizontal flexible tee members, in combination, release two rotational degrees of freedom.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: June 16, 2009
    Assignee: The Boeing Company
    Inventors: Patricia W. Estell, John H. Polk
  • Patent number: 6131850
    Abstract: A brace for cyclic loads includes a tube having first and second ends and a tube wall and a tube axis. The tube wall defines a plurality of first bores radially arranged about the first and second ends of the tube. The first bores extend through the tube wall along first bore axes that are substantially aligned axially with the tube axis. A first end fitting is removably attached to the first end of the tube at an end of the first end fitting. The end of the first end fitting defines a plurality of second bores that have second bore axes. The plurality of second bores are substantially aligned axially and radially with the plurality of first bores. A second end fitting is removably attached to the second end of the tube at an end of the second end fitting. The end of the second end fitting defines a plurality of third bores having third bore axes. The plurality of third bores are substantially aligned axially and radially with the pluralities of first and second bores.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: October 17, 2000
    Assignee: The Boeing Company
    Inventors: Kenneth E. Hey, John H. Polk