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 1258573
ABSTRACT The invention relates to a method of producing a plurality of multi-pane insulating glass assemblies in which the assemblies are formed into a self-supporting unit for further fabrication. Each assembly is provided with at least one exteriorly accessible opening, and the assemblies, supporting one another in surface-to-surface contact, are moved along a conveyor as a unit into a vacuum chamber. Vacuum is drawn on the unit to evacuate each interpane space, following which a gas having coefficient of thermal conductivity lower than that of air is introduced into the chamber to fill the interpane spaces of the glass assemblies. The assemblies as a unit are then conveyed out of the vacuum chamber and the exteriorly accessible openings are sealed. During the evacuation and refilling steps, the glass assemblies are maintained in a generally vertical orientation, and each glass assembly is supported by a neighboring assembly against undue bowing of the glass panes due to pressure differentials between the interior of the vacuum chamber and the interpane spaces.
535555
O'shaughnessy Roger D.
Rueckheim Eric W.
Borden Ladner Gervais Llp
Cardinal Ig Company
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