Patent ID: 8814091
Filing Date: 2014-08-26
Classification: B61D,B62D,B64C,Y10T

Abstract:
1. An aircraft having a floor that can be attached to a vertical frame structure of the aircraft, comprising: first and second longitudinal beams connected to the frame structure, the longitudinal beams being spaced apart from each other and arranged parallel to each other, each beam having an open side facing the other beam, and a boxed horizontal structure nested inside the open side of each longitudinal beam so that the longitudinal beams attach the boxed horizontal structure to the frame structure, the boxed horizontal structure including a plurality of horizontally extending boxes made of composite materials positioned side by side forming a continuous, uniform upper surface and lower surface, each of the boxes extending laterally from a first end nested inside the first longitudinal beam to a second end nested inside the second longitudinal beam, with the upper surface of the boxed horizontal structure covered with an upper skin and the lower surface covered with a lower skin.