E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
108/43
E06B 3/42 (2006.01) E06B 3/26 (2006.01) E06B 3/44 (2006.01)
Patent
CA 1105324
A B S T R A C T A thermal insulating structure for a building window, the window having a generally rectangular window frame containing one or more conventional window panes. The insulating structure includes a pair of opposed parallel grooves located on opposed parallel interior edges of the window frame, the grooves being spaced from the conventional window panes; a unitary transparent pane slidably mounted in the grooves, this unitary pane being of such dimensions that it is operable to occlude the entire window aperture defined by the window frame; and a slot through one edge of the window frame, in alignment with the grooves and of dimensions suitable to allow passage of the unitary transparent pane through the slot. The unitary transparent pane is slidable between a closed position occluding the window aperture, and an open position projecting exteriorly of the window frame from the slot. In its closed position the unitary pane prevents drafts and provides an insulating air space between itself and the conventional window pane or panes.
308998
Barkhouse Ronald E.
Barrigar & Moss
LandOfFree
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