A sliding window having two or more removable sashes each having a sash frame supporting a sealed doubled glazing unit, the sash frame having a sash head and a sash sill made from a thermally insulating plastic material extrusion presenting a hollow structure with two spaced apart guiding legs adapted to engage into and slide along corresponding head track and sill track members. The head track and sill track members provide a pair of guide grooves for the slidable sash and a pair of guide grooves of the same spacing for the fixed sash. A runner or a plurality of runners of appropriate anti-friction material may be disposed between the guiding legs of the sash sill and they bear upon a horizontal bearing surface provided on the sill track between the guide grooves of the corresponding pair thereof. The runners prevent contact between the guiding legs of the sash sill and the bottom of the guide grooves of the sill track. This anti-friction system is particularly useful in the case of relatively heavy slidable sashes. In addition, a waterproofing cover is provided over the uncovered portion of the outer pair of guide grooves of the sill track, providing a main sloping surface extending outwardly and downwardly for draining excess water and thus better waterproofing this critical region of the sliding window.
Boliven’s Predicted Expiration Date includes in its calculation the number of days of patent term adjustment a U.S. patent is entitled. The Predicted Expiration Date does not, currently, include in its calculation the payment of maintenance fees, the filing of any disclaimer(s), and/or patent term extension, but Boliven is working to include this information in the near future.
1. An improved thermally insulating sliding sash unit usable as a replacement for inner and outer single glazed panes in a double sliding window frame, which frame extends generally parallel to a basic reference plane, said frame having a head, a sill and two jamb members, one on each side of said frame, said head and said sill having, respectively, a head track and a sill track with two similar pairs of guide grooves in each track, there being an inner sash edge receiving groove in each jamb member for receiving one of the inner single glazed panes when closed, and an outer sash edge receiving groove for receiving one of the outer single glazed panes when closed, said head and sill tracks being fixed relative to said frame against movement in a direction normal to said basic reference plane, said improved sash unit comprising:a sealed multiple glazing element of rectangular configuration anda sash frame mounted to said glazing element, said sash frame comprising four extruded members of thermally insulating plastic material, namely a sash head, a sash sill, a sash jamb and a meeting sash member, said sash frame being held in a rectangular configuration and bordering said glazing element on all four sides thereof,(a) each of said sash head and said sash sill being hollow and having, on the side receiving said glazing element, a glazing element groove, and on an opposite side a pair of parallel guiding legs, namely a first guiding leg and a second guiding leg, said guiding legs being shaped and spaced to engage in either one of said two pairs of guide grooves of said head track and of said sill track,(b) said sash jamb having, on the side receiving said glazing element, a glazing element groove, and on an opposite side, a pair of spaced apart guiding projections, namely a first guiding projection and a second guiding projection, said guiding projections being shaped and spaced to fit into both of said inner and outer sash edge receiving grooves of either jamb member when said improved sash unit is in its closed position within said double sliding window frame,(c) the first guiding leg of said sash head, the first guiding leg of said sash sill and the first guiding projection lying in a first reference plane, the second guiding leg of said sash head and the second guiding leg of said sash sill lying in a second reference plane, the second guiding projection being offset with respect to said second reference plane, in a direction away from said first reference plane, said sash jamb also comprising a lateral extension for mounting said offset guiding projection to said sash jamb, the distance between said pair of guiding projections being greater than the distance between said parallel guiding legs.
6. A sliding window comprising:a frame, said frame extending generally parallel to a basic reference plane,a track means on said frame defining an opening of said window,a set of at least two removable sashes one of which being slidable, said sashes closing said opening when said slidable sash is in the closed position,said frame comprising a head, a sill and two jambs, one on each side of said frame,said track means comprising a head track on said head, and a still track on said sill, said head track and said sill track being fixed relative to said frame against movement in a direction normal to said basic reference plane,each of said head and sill tracks defining an outer pair of guide grooves and an inner pair of guide grooves, said outer pair of head guide grooves being similar to the inner pair of head guide grooves and said outer pair of sill guides grooves being similar to the inner pair of sill guide grooves, and said jambs each having an inner sash edge receiving groove and an outer sash edge receiving groove, said pairs of head and sill guide grooves and said inner and outer sash edge receiving grooves being arranged and co-related in such a manner as to receive inner and outer sets of single glazed panes used in conventional double sliding window construction,said set of sashes being thermally insulating and designed to replace said inner and outer sets of single glazed panes,(a) each of said sashes comprising a sealed multiple glazing element of rectangular configuration and a sash frame mounted to the edges of said multiple glazing element, said sash frame comprising four extruded members of thermally insulating plastic material, namely a sash head, a sash sill, a sash jamb and a meeting sash member,(b) each said sash frame being held in a rectangular configuration and bordering said glazing element on all four sides thereof,(c) each of said sash head and said sash sill being hollow and having, on the side receiving said glazing element, a glazing element groove, and on an opposite side a pair of parallel guiding legs, namely a first guiding leg and a second guiding legs, said guiding legs being shaped and spaced to engage in either one of said two pairs of guide grooves of said head track and of said sill track,(d) said sash jamb having, on the side receiving said glazing element, a glazing element groove, and on an opposite side, a pair of spaced apart guiding projections, namely a first guiding projection and a second guiding projection, said guiding projections being shaped and spaced to fit into both of said inner and outer sash edge receiving grooves of either jamb member when said slidable sash is in its closed position within said frame,(e) the first guiding leg of said sash head, the first guiding leg of said sash sill and the first guiding projection lying in a first reference plane, the second guiding leg of said sash head and the second guiding leg of said sash sill lying in a second reference plane, the second guiding projection being offset with respect to said second reference plane, in a direction away from said first reference plane, said sash jamb also comprising a lateral extension for mounting said offset guiding projection to said sash jamb, the distance between said guiding projections being greater than the distance between said guiding legs.
13. In combination, a sliding window having a frame with horizontally extending head and sill tracks, at least two sashes mounted in said tracks, one sash being mounted in a plane located inward relative to a plane of the other sash, and a waterproofing cover of plastic material removably mountable in said sill tracks beside the said other sash, said cover comprising:a main sloping surface, having an inner edge and an outer edge,an inner vertical wall supporting the inner edge of said sloping surface, andtwo spaced apart downwardly projecting groove engaging legs depending from an underside of said main sloping surface and at least one of said legs provided with means for resiliently retaining said waterproofing cover to a groove of the sill track of said sliding window.
15. An improved thermally insulating sliding sash unit usable as a replacement for inner and outer single glazed panes in a double sliding window frame, which frame extends generally parallel to a reference plane, said frame having a head, a sill and two jamb members, one on each side of said frame, said head and said sill having, respectively, a head track and a sill track with two similar pairs of guide grooves in each track, there being an inner sash edge receiving groove in each jamb member for receiving one of the inner single glazed panes when closed, and an outer sash edge receiving groove for receiving one of the outer single glazed panes when closed, said head and sill tracks being fixed against movement relative to said frame in a direction normal to said reference plane, said improved sash unit comprising:a sealed multiple glazing element of rectangular configuration anda sash frame mounted to said glazing element, said sash frame comprising four extruded members of thermally insulating plastic material, namely a sash head, a sash sill, a sash jamb and a meeting sash member, said sash frame being held in a rectangular configuration and bordering said glazing element on all four sides thereof,(a) each of said sash head and said sash sill being hollow and having, on the side receiving said glazing element, a glazing element groove, and on an opposite side a pair of parallel guiding legs which are shaped and spaced to engage in either one of said two pairs of guide grooves of said head track and of said sill track,(b) said sash jamb having, on the side receiving said glazing element, a glazing element groove, and on an opposite side, a pair of spaced apart guiding projections which are shaped and spaced to fit into both of said inner and outer sash edge receiving grooves of either jamb member when said improved sash unit is in its closed position within said double sliding window frame, one of said guiding projections being offset with respect to said glazing element,(c) said sash jamb also comprising a lateral extension for mounting said offset guiding projection to said sash jamb, the distance between said pair of guiding projections being greater than the distance between said parallel guiding legs, said lateral extension being a triangular hollow structure integrally formed with said sash jamb.
16. A sliding window comprising:a frame, said frame extending generally parallel to a reference plane,a track means on said frame defining an opening of said window,a set of at least two removable sashes one of which being slidable, said sashes closing said opening when said slidable sash is in the closed position,said frame comprising a head, a sill and two jambs, one on each side of said frame,said track means comprising a head track on said head, and a sill track on said sill, said head track and said sill track being fixed relative to said frame against movement in a direction normal to said reference plane,each of said head and sill tracks defining an outer pair of guide grooves and an inner pair of guide grooves, said outer pair of head guide grooves being similar to the inner pair of head guide grooves and said outer pair of sill guide grooves being similar to the inner pair of sill guide grooves, and said jambs each having an inner sash edge receiving groove and an outer sash edge receiving groove, said pairs of head and sill guide grooves and said inner and outer sash edge receiving grooves being arranged and co-related in such a manner as to receive inner and outer sets of single glazed panes used in conventional double sliding window construction,said set of sashes being thermally insulating and designed to replace said inner and outer sets of single glazed panes,(a) each of said sashes comprising a sealed multiple glazing element of rectangular configuration and a sash frame mounted to the edges of said multiple glazing element, said sash frame comprising four extruded members of thermally insulating plastic material, namely a sash head, a sash sill, a sash jamb and a meeting sash member,(b) each said sash frame being held in a rectangular configuration and bordering said glazing element on all four sides thereof,(c) each of said sash head and said sash sill being hollow and having, on the side receiving said glazing element, a glazing element groove, and on an opposite side a pair of parallel guiding legs which are shaped and spaced to engage in either one of said two pairs of guide grooves of said head track and of said sill track,(d) said sash jamb having, on the side receiving said glazing element, a glazing element groove, and on an opposite side, a pair of spaced apart guiding projections which are shaped and spaced to fit into both of said inner and outer sash edge receiving grooves of either jamb member when said slidable sash is in its closed position within said frame, one of said guiding projections being offset with respect to said glazing element,(e) said sash jamb also comprising a lateral extension for mounting said offset guiding projection to said sash jamb, the distance between said guiding projections being greater than the distance between said guiding legs,said set of sashes including a fixed sash mounted in said frame on the outer pair of guide grooves of said head and sill tracks, said sliding window additionally comprising a removable waterproofing cover disposed horizontally over and covering all of a portion of said outer pair of guide grooves which is exposed to the weather elements when said fixed sash is in place in said frame.
View assignee updates
analyzing 100 million+ documents to uncover your network...