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A method for fabricating a plurality of insulating glass assemblies, the method comprising the steps of providing a plurality of glass assemblies each including a pair of generally parallel, spaced glass panes having therebetween an endless spacer, the spacer and the panes defining an interior space

A method for fabricating a plurality of insulating glass assemblies, the method comprising the steps of providing a plurality of glass assemblies each including a pair of generally parallel, spaced glass panes having therebetween an endless spacer, the spacer and the panes defining an interior space between the panes and inside the spacer, and the spacer having therethrough a tortuous passage affording gas flow into and out of the space, placing the glass assemblies in a chamber, creating a vacuum in the chamber so as to remove substantially all of the air from the spaces, introducing into the chamber a gas having a coefficient of thermal conductivity lower than that of air so that the gas fills the spaces, removing the glass assemblies from the chamber, and closing the passages in the spacers.

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A method for fabricating a plurality of insulating glass assemblies, said method comprising the steps of providing a plurality of glass assemblies each including a pair of generally parallel, spaced glass panes having therebetween an endless spacer, said spacer and said panes defining an interior sp

A method for fabricating a plurality of insulating glass assemblies, said method comprising the steps of providing a plurality of glass assemblies each including a pair of generally parallel, spaced glass panes having therebetween an endless spacer, said spacer and said panes defining an interior space between said panes and inside said spacer, and said spacer having therethrough a passage affording gas flow into and out of said space, stacking said glass assemblies one on top of another to provide an uppermost assembly and at least one supporting assembly beneath said uppermost assembly, with said panes extending generally horizontally and with a pane of each supporting assembly supporting a pane of an adjacent assembly, placing said glass assemblies in a chamber, creating a vacuum in said chamber so as to remove substantially all of the air from said spaces, introducing into said chamber a gas having a coefficient of thermal conductivity lower than that of air so that said gas fills said spaces, removing said glass assemblies from said chamber, and closing said passages in said glass assemblies.