Horizontally-pivotable double-glazed window

Claim 2

A sash for a double-glazed windOw, said sash comprising: an upper horizontal cross-piece; a lower horizontal cross-piece; a pair of vertical pieces joined at their ends to the ends of said horizontal cross pieces to form the sides of the sash, each of said pieces having four integral parallel spaced apart flanges on their inner surface forming a front groove and a rear groove to receive the edges of two panes, said two grooves being spaced from each other to form a central U-channel in said sash between an adjacent flange of each of said grooves; a resilient inverted U-shaped cover gasket spanning said central U channel in said sash, each side of said U-shaped gasket extending within a respective one of said front and rear grooves against said adjacent flange; retaining means on said U-shaped cover gasket cooperating with mating retaining means on said adjacent flanges to hold said Ushaped cover gasket in place; a pair of separate resilient wedge shaped gaskets, each of said wedge shaped gaskets extending within a respective one of said grooves against the flange facing said adjacent flange; and retaining means on each of said wedge shaped gaskets cooperating with retaining means on each respective flange, whereby two panes can be held in said grooves by said cover and wedge shaped gaskets in a single sash.

Claim 3

The sash as claimed in claim 1, wherein said pair of vertical pieces and said lower horizontal cross-piece each have a pair of spaced apart parallel exterior flanges integral on their outer surface opposite the flanges forming said front groove.

Claim 4

The sash as claimed in claim 2, including in combination a frame for the window comprising: an upper frame cross-piece; a lower frame cross-piece; a pair of vertical frame pieces joined at their ends to the ends of said frame cross-pieces, said vertical frame pieces each having two parallel frame flanges on their inner surface in alignment with said pair of exterior flanges on said vertical pieces of said sash when said sash is in the closed position with respect to said frame.

Claim 5

The sash as claimed in claim 3, wherein said upper and lower frame cross-pieces are inclined downwardly from their rear side to their front side.

Claim 6

The sash as claimed in claim 3, including: a horizontal pivot between said frame and said sash; ventilation means in said forward groove of said lower horizontal cross-piece to ventilate the chamber formed between said front and rear grooves by the panes; four projecting members having a forward facing weather strip on one side for sealing said sash to said frame when said sash is in the closed position, two of said projecting members being fastened to said vertical pieces of said sash above said horizontal pivot to abut said weather strip against the rear flange of said two parallel frame flanges, and the other two of said projecting members being fastened to said vertical frame pieces below said pivot to abut said weather strip against the rear flange of said pair of exterior flanges on said vertical pieces of said sash.

Claim 7

The sash as claimed in claim 5, wherein said upper frame cross-piece has a downward projecting flange in the same plane as said rear flange of said two parallel frame flanges; and said lower frame cross-piece and said upper horizontal cross-piece of said sash each have a C-shaped member projecting upward and supporting forward facing horizontal weather strips in abutment against the rear flange of said pair of exterior flanges on said lower horizontal cross-piece of said sash and against said downward projecting flange on said upper frame cross-piece, whereby the horizontal and vertical pieces of said sash are sealed when said sash is in said closed position.

Claim 8

A horizontally pivotable double-glazed window sash and frame comprising: an upper horizontal cross-piece; a lower horizontal cross-piece; a pair of vertical pieces joined at their ends to the ends of said horizontal cross-pieces to form the sidEs of the sash, each of said pieces having four integral parallel spaced apart flanges on their inner surface forming a front groove and a rear groove to receive the edges of two panes, said two grooves being spaced from each other to form a central U channel in said sash between an adjacent flange of each of said grooves; a resilient inverted U-shaped cover gasket spanning said central U channel in said sash, each side of said U-shaped gasket extending within a respective one of said front and rear grooves against said adjacent flange; retaining means on said U-shaped cover gasket cooperating with mating retaining rings on said adjacent flanges to hold said U-shaped cover gasket in place; a pair of separate resilient wedge shaped gaskets, each of said wedge shaped gaskets extending within a respective one of said grooves against the flange facing said adjacent flange; retaining means on each of said wedge shaped gaskets cooperating with retaining means on each respective flange, whereby two panes can be held in said grooves by said cover and wedge shaped gaskets in a single sash; a pair of spaced apart parallel exterior flanges integral with the outer surfaces of said pair of vertical pieces and said lower horizontal cross-piece and located opposite the flanges forming said front groove; a frame encompassing the sash comprising an upper frame cross-piece, a lower frame cross-piece, and a pair of vertical frame pieces joined at their ends to the ends of said frame cross-pieces, said vertical frame pieces each having two parallel frame flanges on their inner surface in alignment with said pair of exterior flanges on said vertical pieces of said sash when said sash is in the closed position with respect to said frame; a horizontal pivot between said frame and said sash; ventilation means in said forward groove of said lower horizontal cross-piece to ventilate the chamber formed between said front and rear grooves by the panes; and four projecting members having a forward facing weather strip on one side for sealing said sash to said frame when said sash is in the closed position, two of said projecting members being fastened to said vertical pieces of said sash above said horizontal pivot to abut said weather strip against the rear flange of said two parallel frame flanges, and the other two of said projecting members being fastened to said vertical frame pieces below said pivot to abut said weather strip against the rear flange of said pair of exterior flanges on said vertical pieces of said sash; a downward projecting flange on said upper frame cross-piece in the same plane as said rear flange of said two parallel frame flanges; and C-shaped member projecting upward from said lower frame cross-piece and said upper horizontal cross-piece of said sash and supporting forward facing horizontal weather strips in abutment against the rear flange of said pair of exterior flanges on said lower horizontal cross-piece of said sash and against said downward projecting flange on said upper frame cross-piece, whereby the horizontal and vertical pieces of said sash are sealed when said sash is in said closed position.

Claim 9

A horizontally pivotable double-glazed window sash and frame comprising: an upper horizontal cross-piece; a lower horizontal cross-piece; a pair of vertical pieces joined at their ends to the ends of said horizontal cross-pieces to form the sidEs of the sash, each of said pieces having four integral parallel spaced apart flanges on their inner surface forming a front groove and a rear groove to receive the edges of two panes, said two grooves being spaced from each other to form a central U channel in said sash between an adjacent flange of each of said grooves; a resilient inverted U-shaped cover gasket spanning said central U channel in said sash, each side of said U-shaped gasket extending within a respective one of said front and rear grooves against said adjacent flange; retaining means on said U-shaped cover gasket cooperating with mating retaining rings on said adjacent flanges to hold said U-shaped cover gasket in place; a pair of separate resilient wedge shaped gaskets, each of said wedge shaped gaskets extending within a respective one of said grooves against the flange facing said adjacent flange; retaining means on each of said wedge shaped gaskets cooperating with retaining means on each respective flange, whereby two panes can be held in said grooves by said cover and wedge shaped gaskets in a single sash; a pair of spaced apart parallel exterior flanges integral with the outer surfaces of said pair of vertical pieces and said lower horizontal cross-piece and located opposite the flanges forming said front groove; a frame encompassing the sash comprising an upper frame cross-piece, a lower frame cross-piece, and a pair of vertical frame pieces joined at their ends to the ends of said frame cross-pieces, said vertical frame pieces each having two parallel frame flanges on their inner surface in alignment with said pair of exterior flanges on said vertical pieces of said sash when said sash is in the closed position with respect to said frame; a horizontal pivot between said frame and said sash; ventilation means in said forward groove of said lower horizontal cross-piece to ventilate the chamber formed between said front and rear grooves by the panes; and four projecting members having a forward facing weather strip on one side for sealing said sash to said frame when said sash is in the closed position, two of said projecting members being fastened to said vertical pieces of said sash above said horizontal pivot to abut said weather strip against the rear flange of said two parallel frame flanges, and the other two of said projecting members being fastened to said vertical frame pieces below said pivot to abut said weather strip against the rear flange of said pair of exterior flanges on said vertical pieces of said sash; a downward projecting flange on said upper frame cross-piece in the same plane as said rear flange of said two parallel frame flanges; and C-shaped member projecting upward from said lower frame cross-piece and said upper horizontal cross-piece of said sash and supporting forward facing horizontal weather strips in abutment against the rear flange of said pair of exterior flanges on said lower horizontal cross-piece of said sash and against said downward projecting flange on said upper frame cross-piece, whereby the horizontal and vertical pieces of said sash are sealed when said sash is in said closed position.