초록 ▼

A simplified plastic window framing system for single or multiple glazing comprising combinations of complementary extrusions wherein the outward appearance of the finished mullions and peripheral framing appears to be that of single extrusions. In outward appearance the glazing is retained within r

A simplified plastic window framing system for single or multiple glazing comprising combinations of complementary extrusions wherein the outward appearance of the finished mullions and peripheral framing appears to be that of single extrusions. In outward appearance the glazing is retained within recesses formed in the mullions or frame members and separable retaining members. The combination creates a substantially rectangular external appearance to the individual mullions and framing members. The framing members are roughly L-shaped and the mullions are roughly T-shaped in cross section. The retaining members are substantially rectangular or trapezoidal in cross section. As finished units however, the mullions and framing members are both substantially rectangular in cross section with only the co-extruded glass seals slightly protruding from the mullions or framing members. All screw splines, notches and protrusions are hidden from view by the attached retaining members or, in the case of peripheral framing members, the structure to which the window is attached. The L-shaped framing members can be easily adapted by the attachment of two extra retaining members to form mullions virtually indistinguishable from the T-shaped mullion members. Three different glazing thicknesses can be accommodated by a minimum number of four extrusions. Two of the extrusions are L-shaped framing members, the third and fourth extrusions are rectangular and trapezoidal retaining members. Mullions can be formed by adding additional retaining members to the framing members or fifth and sixth T-shaped mullion members corresponding to the two framing members may be included to minimize assembly time. As an option, an electrically conductive wire can be co-extruded adjacent the screw splines of each plastic extrusion. At the window corners where metal screws are used to join the mullions and framing members together, the metal screws simultaneously perform the function of electrically connecting the wires together to form wire loops about the window panes. The wire loops about the glazing are ideally situated for the attachment of electrical alarm systems or other sensing units. Other possibilities are window defrosting and heating means.

대표청구항 ▼

An extruded plastic window framing system comprising at least two differing asymmetric peripheral framing members and at least two separate differing glass retainers attachable to any of said peripheral framing members, each of said peripheral framing members comprising in profile a single integral

An extruded plastic window framing system comprising at least two differing asymmetric peripheral framing members and at least two separate differing glass retainers attachable to any of said peripheral framing members, each of said peripheral framing members comprising in profile a single integral glass retainer and a web extending asymmetrically therefrom, a pair of integral symmetric in profile engagement means on said web spaced from said integral glass retainer and located on either side of said web, and glass engagement means on said integral glass retainer, a third integral engagement means located in profile on the opposite side of each of said asymmetric framing members from said integral glass retainer and spaced from said pair of integral engagement means, each of said pair of integral engagement means being symmetric to the other about said web, said third integral engagement means being symmetric to said integral engagement means on the same side of the web about a transverse plane equidistant therebetween, each of said separate glass retainers comprising in profile integral engagement means, said engagement means of each of said separate glass retainers being complementary to any of said pair or third engagement means on either side of each of said peripheral framing members and glass engagement means on each of said separate glass retainers, and, wherein in profile said two differing peripheral framing members differ therebetween in the location of said glass engagement means relative to the web, and said two differing separate glass retainers differ therebetween in the location of said glass engagement means relative to the complementary engagement means of each of said separate glass retainers.