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US 4,639,387 AGranted
Fibrous armor material
AssigneeThe Budd Company
InventorJoseph N. Epel
Life of this patent
Estimating the term…
Abstract
An improved armor material formed of resin bonded fiberous material. The fiberous material comprises at least one monofilament resin coated, wound and consolidated. Also disclosed is a method for making the armor.
Claims8
An armor material suitable for resisting substantial impacts comprising:
- a plurality of monofilament fibers disposed within said material, said fibers being disposed in successive alternating and separate layers, the fiber axis in any given layer being substantially parallel to each other to form a thin layer having a thickness equal to the diameter of the fibers, the fiber axes in layers adjoining said given layer being disposed substantially parallel to each other and at angles to the fiber axis in said given layer to form a multiplicity of cross over points;
- a resinous material surrounding and consolidating said fibers into a three-dimensional structure to form a resin matrix, said resinous material having adhesion to said fibers less than the cohesive strength of said fibers to afford movement of the fibers relative to said matrix upon application of impact force to said armor material whereby a substantial amount of the impact force will be absorbed longitudinally along the axes of the fibers.
An armor material suitable for resisting substantial impacts comprising:
- at least one monofilament fiber disposed within said material, said monofilament fiber being enclosed along its entire length with a coating of resinous material, said fiber being placed into a series of layers formed by passing the fiber upon itself in ascending layers, with successive layers being held in mutually spacial relationship with respect to all other layers by the resinous coating on said monofilament fiber, the fiber axes of adjoining layers being disposed at an angle with respect to each other to form a multiplicity of cross over points;
- said resinous material having an adhesive value with respect to said monofilament fiber less than the tensile strength of the fiber whereby the fiber is free to transmit impact along its longitudinal axis within the resin, said resin offering a resistance to motion of said monofilament fiber transversely of said axis of said fiber whereby movement of said fiber transversely of its axis if restricted and a substantial amount of any impact force will be absorbed longitudinally along said monofilament fiber.
Dependencies are inferred from the claim text.