Patent ID: 8202587

Claim:
A vacuum insulated glass (VIG) unit, comprising: first and second substantially parallel spaced apart substrates, and an evacuated cavity being provided between the first and second substrates; and an edge seal located around the periphery of the first and second substrates; wherein the first substrate, when viewed along a side cross-section, comprises: a body portion, a step portion extending a step height H into the cavity from a major axis of the body portion, an outer edge of the step portion extending away from the cavity at a right angle relative to a major inner surface of the first substrate and being offset at least a setback distance S from an outer edge of the VIG unit, and at least one protrusion extending from the outer edge of the step portion towards one edge of the VIG unit, the length of the protrusion corresponding to the setback distance S, and wherein a surface of the protrusion facing the second substrate is oriented at an oblique angle A 1 relative to the outer edge of the step portion.