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Lightweight contoured load carrying structure

  • US 4,079,903 A
  • Filed: 11/19/1973
  • Issued: 03/21/1978
  • Est. Priority Date: 04/19/1971
  • Status: Expired due to Term
First Claim
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1. A lightweight contoured load carrying structure having an elongated cross section of a selected contour and comprising:

  • a plurality of elongated filament wound tubular members disposed in a side-by-side relationship and cooperating together to form a tubular member assembly, the opposite cross section extremities of said tubular members cooperating to define substantially the contour of the opposite sides of said selected contour, at least some of said tubular members having a plurality of elongated reinforcement means in addition to the filaments of said tubular members and of a material different from said filaments extending longitudinally thereof, said reinforcement means being formed in the walls of said at least some tubular members and arranged between successive layers of said filament wound tubular members;

    skin means wrapped around said opposite cross section extremities to cover said tubular member assembly; and

    bonding means affixing at least portions of said opposite cross section extremities of said tubular members to said skin means whereby said filament wound tubular members, reinforcement means and skin means, when loaded, will cooperate together in carrying longitudinal bending loads applied thereto as well as in distributing loads along the length of the composite cross section to extend substantially to said opposite side of said structure.

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