The Boeing Company

Bonnie Ann Keefe

Kenneth L Brook

Jonathan A Santiago

Jonathan Y Ahn

Shuonan Dong

Ricardo Andreas Fritzke

Erik Alan Phillips

Christopher Robert Brown

Christopher John Deatrick

Jonathan Young Ahn

Jonathan Alejandro Santiago

Duct stringers for aircraft wing boxes. The duct stringer comprises a base, a pair of sidewalls projecting from the base in a spaced-apart relationship, and a cap wall that extends between and interconnects the pair of sidewalls, with the cap wall being positioned spaced apart from the base by the pair of sidewalls. The duct stringer further comprises an ovaloid vent formed in the cap wall. The ovaloid vent comprises a perimeter that circumscribes an aperture and that defines a closed shape. The perimeter comprises a pair of curved end regions opposed to one another and that each arc at least substantially through 180 degrees. Each curved end region comprises a non-uniform radius of curvature.

Duct stringers having ovaloid vents for aircraft wing boxes

The magnetic handling systems comprise a bladder and a magnetic carriage system. The bladder is configured to be received within a stringer interior volume of a hat stringer and comprises a magnetic insert having a plurality of magnetic walls, each configured to align with a respective wall portion of the hat stringer. The magnetic carriage system comprises a carriage having a magnetic head that comprises a bracket and a plurality of magnetic sources supported by the bracket. Each magnetic source is configured to magnetically couple with a respective magnetic wall of the magnetic insert to produce an attractive magnetic force therebetween. The methods comprise disposing a bladder having a plurality of the magnetic inserts within the hat stringer, magnetically engaging a plurality of the magnetic heads with the plurality of magnetic inserts, and conforming the hat stringer by moving at least one magnetic head relative to another magnetic head.

Magnetic handling systems for hat stringers and related methods

The disclosure provides in one embodiment for a vent dam for use in a vent stringer in a fuel vent system. The vent dam is configured to mount to and within the vent stringer The vent dam has a contoured guiding surface for guiding fuel flow into and out of an interior of the vent stringer, wherein the vent dam, the vent stringer, and a tube attached to the vent stringer are in fluid communication with one or more fuel tanks. The vent dam further has one or more side flanges extending from the contoured guiding surface for providing attachment of the vent dam to one or more interior portions of the vent stringer, wherein the contoured guiding surface and the one or more side flanges are formed as one piece.

Fluid dynamic vent dam

The disclosure provides in one embodiment for a vent dam for use in a vent stringer in a fuel vent system. The vent dam comprises a contoured guiding surface for guiding fluid flow in a vent stringer. The vent dam further comprises one or more side flanges extending from the contoured guiding surface for providing attachment of the vent dam within the vent stringer.

Growing community of inventors

Everett, WA, United States of America

Bonnie Ann Keefe