E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
26/184
E06B 3/66 (2006.01) E06B 3/677 (2006.01)
Patent
CA 1327442
ABSTRACT OF THE DISCLOSURE Method of producing multi-pane glass units having a non-air gas in the interpane space comprising the steps of: (a) assembling a plurality of insulating glass units, each unit comprising at least a pair of generally parallel, aligned glass panes having confronting surfaces, a spacer extending peripherally about the unit between the glass panes and defining, with the glass panes, an interpane space, and including separator means for spacing at least a portion of one of the panes of each unit from the peripheral spacer to provide an opening therebetween; (b) drawing a vacuum in an evacuable chamber within which the glass units are housed to remove substantially all of the air from the interpane spaces; (c) refilling the chamber with a gas having a coefficient of thermal conductivity lower than that of air, the gas refilling the interpane spaces of the glass units; (d) disabling said separator means, while the units are in the chamber, to close said opening and thereby to completely seal the interpane spaces of the glass units from the vacuum chamber environment; and (e) removing the glass units from the vacuum chamber.
605876
Borden Ladner Gervais Llp
Cardinal Ig Company
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