Offset Dual-Pane Insulated Glass Unit for Impact Resistance

The patent applies composite materials by combining multiple glass panes of moderate thickness with plastic interlayers (PVB or EVA) to create a laminated glass composite. This composite structure achieves high impact resistance through the synergistic effect of glass strength and plastic toughness, while keeping individual pane thicknesses moderate to control weight. The plastic interlayers prevent glass shards from separating upon impact, maintaining structural integrity without requiring excessive glass thickness.

The patent incorporates flexible plastic films (PVB or EVA interlayers) between glass panes to create a flexible composite structure. These thin plastic films absorb impact energy through deformation and prevent glass fragmentation, providing impact resistance without adding significant weight. The flexible nature of these interlayers allows the glass assembly to withstand high-velocity impacts while maintaining a lightweight profile compared to solid thick glass.

The patent segments the glazing system into multiple functional layers: exterior glass pane, plastic interlayer, interior glass pane, and optional low-emissivity coating. This segmentation allows each layer to perform its specific function - exterior glass blocks impact, plastic interlayer provides insulation and safety, interior glass enhances thermal performance, and low-e coating reduces heat transfer. The segmented structure achieves superior energy efficiency compared to single-pane glass while maintaining manufacturing feasibility through standardized lamination processes.

The patent creates a composite insulated glass unit combining glass and plastic materials with different thermal properties. The glass panes provide structural strength and impact resistance, while the plastic interlayers provide thermal insulation by trapping air pockets and reducing heat conduction. This composite construction achieves effective thermal insulation comparable to or better than traditional double-pane units while maintaining a streamlined manufacturing process through integrated lamination.

The patent merges the framing function with the glass assembly itself by integrating the plastic interlayer into the laminate structure. The plastic interlayer acts as both a safety layer and a structural bonding agent that holds glass panes together during impact, reducing the need for complex external framing systems. The laminate edge sealants provide additional structural support and weather sealing, consolidating multiple functions into integrated components rather than separate framing elements.

The patent uses composite materials at the edges of the glass assembly, where plastic sealants and bonding adhesives create reinforced zones that enhance structural integrity without requiring additional framing members. These composite edge treatments provide both mechanical strength and weather sealing in a single integrated layer, simplifying the overall framing system while maintaining high impact resistance.