Thermally insulated window sash construction for a casement...

Details Thermally insulated window sash construction for a casement... Thermally insulated window sash construction for a casement...

E - Fixed Constructions

04

C

108/32

E04C 2/38 (2006.01)

Patent

CA 1304261

Abstract A window sash member includes first and second generally parallel sidewalls. First and second spaced, generally parallel transverse walls, extending between and oriented generally perpendicular to the first and second sidewalls, connect the first and second sidewalls to define a first hollow chamber. A third transverse wall, located without the first hollow chamber adjacent to and generally parallel to the first transverse wall, extends from the first transverse wall and terminates short of the second sidewall. A first interior wall, oriented generally parallel to the first sidewall, extends from the third transverse wall to the first transverse wall to define a second hollow chamber. A fourth transverse wall, located without the first hollow chamber adjacent to and generally parallel to the second transverse wall, extends from the first sidewall and terminates short of the second sidewall. A second interior wall, oriented generally parallel to the second sidewall, extends from the fourth transverse wall to the second transverse wall to define a third hollow chamber. A window sash employs at least one of such sash members.

545560

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