A laminated glazing with a network of heating wires includes at least two rigid transparent sheets that are connected to one another pairwise by an intercalary adhesive layer, wherein at least one network of heating wires is arranged on a face of one of the at least two rigid transparent sheets other than the exterior main faces of the laminated glazing, the network of heating wires being supplied with power by contact with at least two feeds that are connected to an electric current source, the feeds being arranged on the edges of the laminated glazing and/or on its exterior main face that is intended to be oriented, in the mounting position, opposite the exterior atmosphere.

An insulating glazing unit may be configured to provide both visible transparency and bullet-resistance. The bullet resistant properties of the unit may be achieved through the combination and coordination of different materials forming the panes of the unit. For example, the insulating glazing unit may include multiple laminate panes separated by a spacer. Each laminate pane may include at least two transparent rigid substrates joined by a layer of laminate material. The laminate material used in one laminate pane may be different than the laminate material used in another pane. For example, one pane may utilize a laminate material that is soft and flexible. This may help absorb and dissipate the impact of a projectile. By contrast, another laminate pane may utilize a laminate material that is stiff and rigid. This may help provide a final stopping force to a projectile.

An anti-ballistic protection system for protecting a space in a building or vehicle comprising a protective blind including plurality of slats or a sheet of a laminated material having a plurality of layers of lightweight, flexible, ballistic resistant material which are secured together using a glue, heat weld, or stitching. The system may include an automated control system operably configured to cause a change in state of the blind from a retracted state to a protective deployed state, which may include a sensing system operably configured to detect a threatening event, wherein the sensing system upon sensing the threatening event triggers the blind to transition from the retracted state to the deployed protective state such that in the protective state, the blinds are adapted to be resistant to penetration by high-speed ballistic objects such as bullets.

The present application for patent is in the field of projectile-proof panels and devices and more specifically in the field of visually transparent projectile-proof panels which are light weight and suitable for goggles, helmets and other devices which benefit from being light weight.

A low infrared absorbing lithium glass includes FeO in the range of 0.0005-0.015 wt %, more preferably 0.001-0.010 wt %, and a redox ratio in the range of 0.005-0.15, more preferably in the range of 0.005-010. The glass can be chemically tempered and used to provide a ballistic viewing cover for night vision goggles or scope. A method is provided to change a glass making process from making a high infrared absorbing lithium glass having FeO in the range of 0.02 to 0.04 wt % and a redox ratio in the range of 0.2 to 0.4 to the low infrared absorbing lithium glass by adding additional oxidizers to the batch materials. A second method is provided to change a glass making process from making a low infrared absorbing lithium glass to the high infrared absorbing lithium glass by adding additional reducers to the batch material. In one embodiment of the invention the oxidizer is CeO.sub.2. An embodiment of the invention covers a glass made according to the method.

Disclosed is a bulletproof panel that can replace glass of a vehicle, an elevator, a meeting room, a ticket booth, or the like. The bulletproof panel includes a base layer, a reinforcing layer provided on each of opposite sides of the base layer, and an adhesive layer provided on the base layer and each of the reinforcing layers and made of a UV-curable urethane resin. The bulletproof panel is characterized in that when the panel is impacted by a bullet, the base layer breaks and absorbs a rotational force of the bullet, while the reinforcing layers provided on respective opposite sides of the base layer suppress broken pieces of the base layer from scattering. Thus, the bulletproof panel can exhibit an excellent bulletproof effect because the bullet is fixed in the base layer and does not penetrate therethrough, while preventing broken pieces generated by the bullet from scattering.

A ballistic resistant material and structure and methods for allowing and preventing projectiles from passing through the ballistic resistant defense structure. The ballistic resistant defense structure involves a ballistic multilayer arrangement comprised of V-Profiles 100 which are further comprised of V-shaped wedges arranged adjacent to each other, spaced slightly apart, with gaps. The gaps between the V-shaped wedges expand or contract depending on which side of the V-Profile a projectile strikes.

An anti-ballistic door having a keyed joint assembly substantially defining an inner perimeter of the door, and a bullet persistent panel secured internal to the door using the keyed joint assembly. The anti-ballistic door has up to a UL 752-Level 8 protection rating having a lower weight relative to conventional anti-ballistic doors and is sized to fit within conventionally sized door frames. An anti-ballistic panel is additionally provided having a keyed joint assembly substantially defining an inner perimeter of the panel, and a bullet persistent panel secured internal to the panel using the keyed joint assembly. The anti-ballistic panel has up to a UL 752-Level 8 protection rating.

An example barrier can be switchable between an at least partially collapsed state and at least partially expanded state (e.g., a deployed state). For example, the barrier can be formed from a sheet and a plurality of rigid sections (e.g., rigid panels) attached or incorporated into the sheet. The barrier can also include a plurality of hinges, such as hinge lines, between the panels that are formed from the sheet. The hinges enable the barrier to be rigid foldable (e.g., the hinges can fold and unfold while the rigid sections remain stiff and rigid) between the expanded and collapsed states.

The present invention provides high security polycarbonate laminates integrated with insulated glazing units (IGU) to produce high security windows. The laminate comprises at least nine layers, in the following order: (i) an insulated glazing unit; (ii) a thermoplastic polyurethane; (iii) a polycarbonate; (iv) a thermoplastic polyurethane; (v) a polycarbonate; (vi) a thermoplastic polyurethane; (vii) a glass; (viii) a thermoplastic polyurethane; and (ix) a polycarbonate. A frame may surround and overbite the laminate. An array of framed laminates may be arranged such that one framed laminate may be removed, without removing an adjacent laminate.