In some examples, a method for forming a ballistic armor article, the method including forming a preform article by depositing a filament via a filament delivery device, wherein the filament includes a sacrificial binder and a powder; removing the binder from the preform article; and sintering the preform article to form the ballistic armor article, wherein the ballistic armor article is configured to absorb energy from an external projectile that impacts the ballistic armor article, and wherein the ballistic armor article is configured to prevent the projectile from penetrating through the ballistic armor article.

Unidirectional transparent projectile penetration resistant panels and bidirectional opaque projectile penetration resistant assemblies and systems and methods of forming and mounting the same relative to underlying support structures.

A helmet includes a shell having a head-protecting portion and two opposing cheek-protecting portions, the two cheek-protecting portions extending downward, integrally from left and right ends of the head-protecting portion, respectively, a protector having a jaw-protecting portion and a neck-protecting portion, the neck-protecting portion extending backward, integrally from a back end of the jaw-protecting portion, wherein a top edge of the neck-protecting portion of the protector connects to bottom edges of the cheek-protecting portions of the shell, and a foam liner disposed on an inner side of the shell and on an inner side of the protector to couple the shell and the protector together. The helmet further comprises a support disposed within the protector and enclosed by the foam liner.

A method for forming an antiballistic panel includes selecting a largest ceramic plate, i.e. one with a widest circumference, from a batch of ceramic plates; forming a number of transparent rear covers with the shape of said largest ceramic plate; forming a batch of antiballistic panels each based on a single ceramic plate, wherein each antiballistic panel is vacuum baked from the following: a fibre reinforced composite layer which at least covers a front face of the ceramic plate; a trauma reducing fibre reinforced composite layer on a rear face of the ceramic plate; a binder cloth on the trauma reducing composite layer's rear face; an expanding, gluing foam on said binder cloth; mounting a transparent back cover onto the gluing foam to cover an entire circumference of the vacuum baked antiballistic panels; compression of the antiballistic panel now including the rear cover; and hardening of the foam.

The present disclosure relates to printing apparatus and manufacturing techniques for the manufacture and fabrication of pressure suits and space suits. The disclosure also relates to space suit components formed from additive polymer, and components including one or more layers of a mesh fabric with an applied layer of an additive polymer. One method includes providing an apparatus comprised of a six-degree of freedom motion manipulator with the motion manipulator attached to one or more printing extruder heads. Additive polymers may be extruded via the one or more printing extruder heads to form 3D printed space suit components.

A push-in earplug including an elongate core and outer layer is disclosed. The outer layer includes a sound attenuating portion having a first average density and a stem portion having a second average density, and the second average density is greater than the first average density.

Unidirectional transparent projectile penetration resistant panel assemblies and bidirectional opaque projectile penetration resistant assemblies and systems and methods of forming and mounting the same relative to underlying support structures.

The present invention provides a system and method for preparing armor made of para-aramid fibers, including a plurality of rollers feeding an input source of the para-aramid fibers, the fibers being at a first temperature. The system and method include a heating mechanism encapsulating at least a portion of the plurality of rollers, the heating mechanism heating the para-aramid fibers fed by the rollers from the first temperature to a second temperature. The method and system include a press, including a plurality of plates, whereupon the para-aramid fibers reaching the second temperature, the para-aramid fibers are fed into and compressed between the plurality of plates by the press, and heated to a third temperature. The method and system include a cooling section supporting the plurality of plates and the para-aramid fibers compressed therein while the para-aramid fibers cool from the third temperature to a fourth temperature.

A light, durable, and user friendly cover for a laptop computer that integrates the protective qualities of hard shell cases with the aesthetics of soft cut-and-sew covers is disclosed. The cover includes top and bottom panels configured to cover the display and keyboard portions, respectively. Each panel is independent and separate from the other and each is formed as a unitary component of a molded resilient polymer material, such as polycarbonate, that is configured to reversibly and retentively snap-fit over the outer surface of the laptop computer. Each panel includes a raised lip along its perimeter edge region that defines an internally extending recessed region on the panel's outer surface. Fabric and/or leather overlays are positioned, sized and adhesively coupled atop the recessed regions and are protected from delaminating, fraying, and/or peeling by the raised perimeter lip.

A customizable knee pad includes a foam main body having an anterior surface A and a posterior surface molded to the shape of the knee. The anterior surface is formed with an array of spaced recesses covering the knee to be protected. Each recess defines a negative incremental area and, cumulatively, define an area A.sub.r. The effective area A.sub.eff of the anterior surface is equal to A.sub.eff=AA.sub.r. A fabric sheet covers the posterior surface. A gel pad is provided within the main body in close proximity to the fabric sheet. The main body of the knee pad is injection molded with the gel pad and fabric sheet in place to bond the fabric sheet and gel pad to the molded main body to be effectively integrated therewith. Changing the recesses' shape and spacing alters the flexibility of the knee pad and renders it harder or softer.