E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
108/28, 108/73
E06B 3/00 (2006.01) E06B 3/26 (2006.01) E06B 3/46 (2006.01)
Patent
CA 1075085
DOUBLE SASH STRUCTURE Abstract of the Disclosure A window frame assembly ready for securement in a window opening of a building to provide a double sash window structure comprising a first sash facing to the outside and a second sash facing to the inside. The window frame portion supporting the first sash is formed of a metallic material and that of the second sash is formed of a synthetic resin material having a low heat conductivity. The latter is disposed contiguously to the window frame of the first sash. The two frame portions are secured to each other by interlocking complementary engagement means, preferably prior to the mounting of the frame within the window opening of a building. By virtue of the low heat conductivity of the window frame of the second sash, lowering of the temperature in the room and formation of dew by condensation of moisture can be reduced. The invention thus provides an improved double sash structure excellent in the heat- insulating property, having an attractive appearance and an improved strength, combined with an easy assembly of the two frame parts.
293441
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