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US 11,898,399 B2Granted
Composite stiffener
OwnerPeter Singinventor
Life of this patent
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Abstract
Embodiments of the disclosure are directed towards a composite stiffener that is incorporated into panelized products to create stronger bonding, greater adhesion between laminated layers and less warping sandwich panels. In addition, the resulting products incorporating composite stiffeners can be lightweight, yet stronger than other lightweight panels.
Claims10
A composite stiffener comprising:
- a set of strengthening strips, each strengthening strip comprising an anti-warp composite material;
- a set of inner laminated layers;
- and
- a core having-torsion-box grid structure comprising a torsion box grid structure where voids are filled with foam with lengths of the voids extending along a length of the core, wherein at least one inner laminated layer of the set of inner laminated layers is bonded to at least one side of a a plurality of sides of the core, and each set of strengthening strips is bonded to an outer side of each of the inner laminated layers, and a thickness of the core is the same as a thickness of an adjacent core material in a structure in which the composite stiffener is inserted into.
1 more element
Dependencies are inferred from the claim text.