Patent ID: 8517309
Filing Date: 2013-08-27
Classification: B64C,Y10T

Abstract:
1. An integrally stiffened panel comprising: a sheet member having a land surface; a first stiffener integral to the sheet member, the first stiffener having a first side sloping upward from the land surface to a first height, and a second side sloping downward from the first height to the land surface; a second stiffener integral to the sheet member, the second stiffener having a third side sloping upward from the land surface to a second height, and a fourth side sloping downward from the second height to the land surface; and a joint at an intersection of the first stiffener and the second stiffener, the joint having an inverted pocket that slopes downward from the first height of the first stiffener at a first initial inversion and that slopes downward from the second height of the second stiffener at a second initial inversion; wherein a plane that is normal to a first axis of the first stiffener and parallel to a second axis of the second stiffener, traverses through the first initial inversion of the joint and also extends through the first side of the first stiffener.