Patent ID: 7141282

Claim:
Insulating glazing unit comprising: at least two glass sheets separated by a gas-filled cavity; an insert serving for spacing the at least two glass sheets and having an internal face facing the gas-filled cavity and an opposed external face, said insert having a linear buckling strength of at least 400 N/rn, said insert extending to outermost edges of the glass sheets without extending past the outermost edges of the glass sheets; and a sealing element configured to seal an inside of the insulating glazing unit, wherein the insert is in a form of a substantially flat profiled strip that girds a perimeter of the insulating glazing unit by its internal face being pressed against edges of the at least two glass sheets and held fast by a fastener, the insulating glazing unit does not include a spacer contacting facing surfaces of the glass sheets, and the insulating glazing unit does not include a metal coating contacting a facing surface of either of the glass sheets.