E - Fixed Constructions – 04 – F
Patent
E - Fixed Constructions
04
F
72/54, 72/57, 49
E04F 13/14 (2006.01) E04B 1/80 (2006.01) E04C 1/42 (2006.01)
Patent
CA 1163112
ABSTRACT OF THE DISCLOSURE The present invention provides a blown glass tile which is evacuated for insulating purposes and a method of forming the blown glass tile. The tile is blown through a opening which is later sealed by means of a pressure pro- ducing source in solid state to form a gas at a temperature below 600°C which is the melting point of glass. The molded glass is then blown by means of the gas which has been formed from the pressure producing source into a mold to form a tile. The tile is sealed with the gas trapped therein and thereafter cooled which initially results in solidification of the glass and thereafter sublimation of the gas back to the solid state producing a vacuum within the now formed tile.
390921
Cordeiro Olavo
Johnson Douglas S. Q.c.
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