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AssigneeWebcore Technologies, Inc.
InventorsStephen W. Day, G. Scott Campbell, Danny E. Tilton, Frederick Stoll, Michael Sheppard, Paul L. Galloway
Estimating the term…
A fiber reinforced core panel is formed from strips of plastics foam helically wound with layers of rovings to form webs which may extend in a wave pattern or may intersect transverse webs. Hollow tubes may replace foam strips. Axial rovings cooperate with overlying helically wound rovings to form a beam or a column. Wound roving patterns may vary along strips for structural efficiency. Wound strips may alternate with spaced strips and spacers between the strips enhance web buckling strength. Continuously wound rovings between spaced strips permit folding to form panels with reinforced edges. Continuously wound strips are helically wrapped to form annular structures, and composite panels may combine both thermoset and thermoplastic resins.
A fiber reinforced core panel adapted for use with a hardenable resin and having opposite core surfaces adapted to be attached to corresponding skins, said core panel comprising a plurality of longitudinally spaced elongated strips of low density cellular material and defining spaces between opposing ends of said strips, at least one layer of fibrous rovings continuously and helically surrounding each of said strips along the length thereof and the spaces therebetween, said elongated strips being connected by said helically surrounding rovings and folded to form a unitized said core panel with said rovings extending over said core surfaces and said ends of said strips and adapted to be moved to a molding process where the resin is hardened.
A fiber reinforced core panel of annular configuration and adapted for use with a hardenable resin and having opposite core surfaces adapted to be attached to corresponding skins, said core panel comprising a continuous elongated strip of low density cellular material, at least one layer of fibrous rovings continuously and helically surrounding said strip along the length thereof, said strip extending in helical path to form said annular configuration, adjacent portions of said elongated strip and said helically surrounding rovings being connected together to form a unitized said core panel with said rovings extending over said core surfaces for receiving the skins and adapted to be moved as a preform unit to a molding process where the resin is hardened.
A one-piece fiber reinforced core panel adapted for use with a hardenable resin and to be inserted into molding apparatus for receiving skins, said core panel comprising an elongated continuous strip including a row of longitudinally arranged and adhesive connected blocks of low density rigid material, a first layer of continuous fibrous rovings helically wound around said row of said adhesive connected blocks in said strip with all of said rovings extending continuously along the entire length of said strip around all of said blocks in said row, a second layer of continuous fibrous rovings helically wound around said strip with all of said rovings extending continuously along the entire length of said strip around all of said blocks in said row, said rovings in said second layer extending helically in an opposite direction and crossing said rovings in said first layer, reinforcing members separate from said continuous fibrous rovings and extending between said adhesive connected blocks, and said core panel adapted to be moved to the molding apparatus where the skins are added and the resin is hardened.
A one-piece fiber reinforced core panel adapted for use with a hardenable resin and to be inserted into molding apparatus for receiving skins, said core panel comprising an elongated strip including a row of longitudinally arranged and adhesive connected blocks of low density cellular material, continuous fibrous rovings helically wound around each of said blocks and extending between said adhesive connected blocks in said row, a first layer of continuous fibrous rovings separate from said continuous fibrous rovings extending between said adhesive connected blocks and helically wound around said row of adhesive connected blocks in said strip with all of said rovings in said first layer extending continuously along the entire length of said strip around all of said blocks in said row, and said core panel adapted to be moved to the molding apparatus where the skins are added and the resin is hardened.
A one-piece fiber reinforced core panel adapted for use with a hardenable resin and to be inserted into molding apparatus for receiving skins, said core panel comprising a plurality of elongated adjacent continuous strips each including a row of longitudinally arranged and adhesive connected blocks of low density rigid material, a first layer of continuous fibrous rovings helically wound around each of said strips with all of said rovings extending continuously along all of said adhesive connected blocks in the entire length of said strip, a second layer of continuous fibrous rovings helically wound around each of said strips with all of said rovings extending continuously along all of said blocks in the entire length of said strip, said rovings in said second layer crossing said rovings in said first layer, separate crossing rovings extending between said adhesive connected blocks in each said strip, said elongated strips and said helically wound around rovings adhesive connected to form a unitized said core panel with said rovings extending over opposite side surfaces of said core panel, and said unitized core panel adapted to be moved as a preform unit to the molding apparatus where the skins are added and the resin is hardened.
Dependencies are inferred from the claim text.