Patent ID: 7743570

Claim:
A simulated divided lite insulating glazing unit having an internal muntin bar grid; the unit comprising: first and second spaced glass sheets spaced apart by a perimeter spacer; the first and second glass sheets and spacer defining an insulating chamber; an internal muntin bar grid disposed inside the insulating chamber; the internal muntin bar grid extending between different portions of the perimeter spacer to divide the insulating chamber into separate lites to provide a divided-lite appearance to the glazing unit; the internal muntin bar grid having a plurality of inner muntin grid elements that each has a longitudinal direction and a plurality of flexible, collapsible outer muntin grid elements that each has a longitudinal direction; the inner muntin grid elements being arranged in a grid that defines the pattern of the internal muntin bar grid; the outer muntin grid elements surrounding the inner muntin grid elements to completely hide the inner muntin and elements of the internal muntin bar grid from view; and when the combined inner and outer muntin grid elements are viewed in a cross section taken perpendicular to the longitudinal direction, the outer muntin grid element completely surrounding the inner muntin grid element.