Abstract: Systems and methods for bending a composite based reinforcing bar (C-bar), are disclosed, including a bending apparatus, having a bending platform including a plurality of stationary supports, a pair of movable supports, and a control assembly. Each pair of stationary support and corresponding movable support are configured to engage a pair of flanges of the C-bar.

Abstract: A modular ballistic panel may include first and second vertical members, and curved rectangular first and second slats. The second vertical member may be spaced from the first vertical member. Each of the slats may be disposed between the first and second vertical members, with a first edge coupled to the first vertical side member and a second edge coupled to the second vertical side member. The first and second slats may be configured to deflect a projectile downward.

Abstract: A rebar structure for concrete reinforcement may include an elongate tubular central wall portion having an inside surface and an outside surface. The central wall portion may be formed circumferentially around a core axis and may include glass or carbon fibers mostly being oriented longitudinally parallel to the core axis. The rebar structure may include an inner wall portion bonded to the inside surface of the central wall portion. The inner wall portion may include glass or carbon fibers and may have a higher percentage of fibers oriented non-parallel to the core axis as compared to the central wall portion.

Abstract: A rebar structure for concrete reinforcement may include an elongate tubular central wall portion having an inside surface and an outside surface. The central wall portion may be formed circumferentially around a core axis and may include glass or carbon fibers mostly being oriented longitudinally parallel to the core axis. The rebar structure may include an inner wall portion bonded to the inside surface of the central wall portion. The inner wall portion may include glass or carbon fibers and may have a higher percentage of fibers oriented non-parallel to the core axis as compared to the central wall portion.

Abstract: A fire-resistant, projectile-resistant, composite-material panel for use in a modular concrete enclosure may include a panel body having a front major face and a back major face opposite the front major face. The panel body may include concrete and a plurality of round objects embedded within the concrete and configured to hinder the advance of projectiles through the panel body, with each of the round objects having a dimension in a range of 0.25-1.0 inches. The panel may further include a resin layer disposed over the front major face, the resin layer configured to bind the front major face of the panel body when struck by projectiles, and a fire-resistant layer disposed over the back major face. The fire resistant layer may be configured to protect an interior space of the enclosure against fire exterior to the enclosure.

Abstract: A plural-layer protective coating placeable adjacent the outside surface of a liquid fuel container.

Abstract: A rebar structure for concrete reinforcement may include an elongate tubular central wall portion having an inside surface and an outside surface. The central wall portion may be formed circumferentially around a core axis and may include glass or carbon fibers mostly being oriented longitudinally parallel to the core axis. The rebar structure may include an inner wall portion bonded to the inside surface of the central wall portion. The inner wall portion may include glass or carbon fibers and may have a higher percentage of fibers oriented non-parallel to the core axis as compared to the central wall portion.

Abstract: Elongate, composite-material, hollow rebar structure, along with associated components, related fabrication apparatus, and apparatus-implemented, rebar-structure-making methodology. The rebar structure has a long axis, and includes (a) an elongate, hollow core centered on that long axis, (b) an elongate, hollow sleeve having inner and outer surfaces, circumsurrounding the core along the core's length, with the sleeve's inner surface bonded to the core's outer surface along the length thereof, and (c) longitudinally distributed, radial-dimensionality, external-purchase-enhancing structure formed unitarily with the sleeve's outer surface along the length thereof. The bond existing between the core and the sleeve takes the form of a single-cure, reverse-temperature-gradient-cure, plastic-material, molecular bond.

Abstract: Apparatus possessing elongate, long-axially aligned componentry for making hollow, composite-material rebar including (a) a hollow mandrel disposed upstream in the apparatus, (b) a hollow pultrusion die circumsurrounding the mandrel for forming a composite-material hollow core in the space between it and the mandrel, and (c) a hollow, continuous-transfer-molding die spaced downstream from the pultrusion die, having a central long axis about which it is rotatable, operable to form, along the length of a core which has been formed in the pultrusion die, (1) an elongate, composite-material, core-circumsurrounding, hollow sleeve having an outer surface, and (2), unitarily with the sleeve, and in a manner distributed along the length of the sleeve's outer surface, an external-purchase-enhancing structure possessing radial-dimensionality.

Abstract: A method of making an elongate, composite-material, hollow rebar structure including (a) forming an elongate, composite-material, hollow core, (b) in association with such forming, preparing along the core's length an elongate, composite-material, core-circumsurrounding, hollow sleeve having inner and outer surfaces, (c) in association with such preparing, creating, unitarily with the sleeve, and in a manner distributed along the length of the sleeve's outer surface, an external-purchase-enhancing structure possessing radial-dimensionality, and (d) bonding the inner surface of the sleeve to the outer surface of the core.

Abstract: A method of making an elongate, composite-material, hollow rebar structure including (a) forming an elongate, composite-material, hollow core, (b) in association with such forming, preparing along the core's length an elongate, composite-material, core-circumsurrounding, hollow sleeve having inner and outer surfaces, (c) in association with such preparing, creating, unitarily with the sleeve, and in a manner distributed along the length of the sleeve's outer surface, an external-purchase-enhancing structure possessing radial-dimensionality, and (d) bonding the inner surface of the sleeve to the outer surface of the core.

Abstract: Apparatus possessing elongate, long-axially aligned componentry for making hollow, composite-material rebar including (a) a hollow mandrel disposed upstream in the apparatus, (b) a hollow pultrusion die circumsurrounding the mandrel for forming a composite-material hollow core in the space between it and the mandrel, and (c) a hollow, continuous-transfer-molding die spaced downstream from the pultrusion die, having a central long axis about which it is rotatable, operable to form, along the length of a core which has been formed in the pultrusion die, (1) an elongate, composite-material, core-circumsurrounding, hollow sleeve having an outer surface, and (2), unitarily with the sleeve, and in a manner distributed along the length of the sleeve's outer surface, an external-purchase-enhancing structure possessing radial-dimensionality.

Abstract: An anti-puncture, water-leak-inhibiting, self-sealing, coating structure for application selectively to inside and/or outside portions of a boat hull. The coating structure, in operative condition with respect to such a hull portion, includes a body of continuous-phase, non-water-reactive, high-elastomeric-material, and, embedded within that body, in an initially shrouded and non-exposed condition guarded nominally against any contact with external water, a distribution of water-reactive, water-imbiber beads.

Abstract: A method for spray-creating a composite-material layer on the outside surface of a liquid container to defeat liquid leakage following a projectile penetration of the container. The method includes (a) defining a by-weight percentage blend of two penetration-reaction materials, where the contribution of one such material, an initially liquid and wet-sprayable, but subsequently curable-to-dry, high-elastomeric body-forming material, is larger than that of the other material, which takes the form of a population of dry, liquid-imbibing bead elements, (b) creating weight-percentage-differentiated, simultaneous sprays of these two materials for contact-blending, during spraying, into a composite spray en route in the air toward the region of a target liquid container, and (c) as a part of such creating, controlling the amount of en route, inter-material, contact blend time between the two materials.

Abstract: An embedded-object composite product including a solid-state mass of PET, an object embedded in the PET material mass, and a zone possessing a continuous material-density gradient in the PET material mass, with more-dense PET material residing closely adjacent the embedded object, and less-dense PET material residing more distant from that object. This product is produced effectively by non-destructively heating the PET mass from its solid state to allow it to flow as a liquid, by then pressing the object into the heated PET mass to perform object embedment and to create a declining PET-material density in the region adjacent, and progressing from adjacent, the embedded object, and by thereafter cooling the mass to re-solidify it.

Abstract: A method for applying to an outside surface of a liquid container an anti-leak, self-healing, layered barrier structure intended to inhibit liquid leakage from that container due to an impacting and piercing projectile.

Abstract: Structure, methodology and performance involving and utilizing body armor strand material which includes an elongate strand body possessing elongate brittle ceramic surface structure, elongate ductile core structure disposed within that surface structure, and elongate brittle/ductile transition structure operatively interposed and joining the surface and core structures. Methodology includes the steps of preparing a defined mass of elongate ceramic-surfaced, ductile-cored strand elements, each including, along the outside of its length, elongate, sharp-angular edges, and placing that mass in the impact path of such a projectile in a manner whereby edges in the strands face the projectile impact path.

Abstract: Elongate, composite-material, hollow rebar structure, along with associated components, related fabrication apparatus, and apparatus-implemented, rebar-structure-making methodology. The rebar structure has a long axis, and includes (a) an elongate, hollow core centered on that long axis, (b) an elongate, hollow sleeve having inner and outer surfaces, circumsurrounding the core along the core's length, with the sleeve's inner surface bonded to the core's outer surface along the length thereof, and (c) longitudinally distributed, radial-dimensionality, external-purchase-enhancing structure formed unitarily with the sleeve's outer surface along the length thereof. The bond existing between the core and the sleeve takes the form of a single-cure, reverse-temperature-gradient-cure, plastic-material, molecular bond.

Abstract: Differentially armored, vehicle fuel tank structure possessing contiguous, united and integrated, tank-wall regions including a high-puncture-risk region formed of lightweight, penetrable, non-armoring material, and joined thereto, a low-puncture-risk region formed of hardened and heavyweight, anti-penetration, armoring material. Included also is a sprayed-on, allover, tank-exterior, self-sealing, anti-fuel-leak barrier coating formed principally of a high-elastomeric material which reacts in a material-swelling manner on contact with fuel in the tank structure.

Abstract: An anti-fuel-leak, plural-layer barrier coating applicable to the outside surface of the wall in a liquid-fuel container possessing a layer stack including plural, cooperating, barrier layers, each formed of a high-elastomeric material which reacts with a material-swelling behavior on contact with fuel of the type contained in the container, and, among these plural layers, at least one cast-formed layer. Associated methodology involves applying directly onto such a surface, by one only of the processes including casting and spraying, an inner layer formed of the mentioned high-elastomeric material, and thereafter forming, outwardly of the applied inner layer, and also of the same high-elastomeric material, another layer by the other one only of the two, mentioned processes.