The fenestration industry dates from antiquity and mankind has used many methods of securing the openings in buildings that provide light, air and access. After the invention of steel and the methods of readily producing clear glass were developed it became commonplace to enclose openings by means of slender steel framework that held glass panels by means of clips and glazing putty. This allowed for a higher level of shelter to be constructed. Windows made from steel and glass allowed natural light while providing protection from the elements and this paved the way to control indoor temperature. The invention of air conditioning induced a further need to control air infiltration, radiant energy and thermal transfer and consequently steel window production slowly gave way to more energy efficient methods of construction. This transition significantly altered the architectural style that had been established with the low profile steel windows. The applicants present invention allows for the architectural style established with the narrow sight lines of steel windows with a maintenance free window that has the thermal performance required in modern construction.
Applicant has created a window typically constructed, in one embodiment, primarily from bronze and brass extrusions with a profile similar to the old fashioned steel windows, that can be dry glazed and with a design that helps reduce thermal transfer through the frame and provides for the use of monolithic or insulated glass. This window system, with the unique single or double glass retainer attachment, as well as novel devices and method of securing the units into a building structure, allows for integration into the modern building envelope, providing the necessary barrier against moisture, air infiltration and solar energy while maintaining the distinctive architectural style of a bygone era.
a-2e portray a cutaway section views of a traditional prior art steel window that was regularly glazed with a single layer of glass.
a-3c are cutaway section views of applicant's present invention and displays the unique double glass retainers and the dry glazing seal details.
a and 4b are cutaway perimeter detail sections of the unique plaster flange attachment method of applicant's present invention that allows for the antique architectural style of setting the windows in the center of a thick masonry covered wall and yet still provide for the moisture barrier required in modern construction.
a and 5b shows cutaway perimeter detail sections of an alternate attachment method of applicant's present invention that allows for retrofitting existing steel windows.
Turning to
In
a, 3b and 3c details Bronze Cross Section (30), which is a typical detail of applicants present invention. In the Bronze Cross Section (30) there are also the components listed in the Mulled Window (1) of
a and 4b, detail Fixed Plaster Flange (50) a cut-away section of Outside Frame (4) with the unique Plaster Flange (51) attached to outside frame (4) and mounted in Structural Wall (48) that is clad with Sheathing (49) such as OSB board. It is noted that Outward Edge (53) is affixed to the Building Structure (54), which can be a 2Ć4 or any such structural member, and provides a surface for Waterproofing Membrane (55) which can be Tyvek or any suitable building waterproofing membrane, to seal against. Reinforced Plaster (57) can then wrap around Building Structure (54) as a Plaster Return (52) stopping at Plaster Termination (59) as defined by Plaster Pocket Forming Member (56). This allows Plaster Return (52) sufficient thickness to be structurally sound and Trowel Guide (58) forms a utility point to guide the masons trowel as the plaster is applied. Of course, the plaster is referred to as a means of illustration but any exterior building material such as stone or wood could be used instead of the plaster. Once applied, Reinforced Plaster (57), or any whatever building material used to clad the structure, forms one side of the Caulk Channel (60) where Flexible Caulk (61) is applied to form an additional seal against moisture penetration. Thus applicant has demonstrated how the unique Fixed Plaster Flange (50) allows for windows to be installed inset from the Outside Face (63) of Structural Wall (48), allow for the thickness of Plaster Return (52) by means of Plaster Pocket Forming Member (56) and still maintain a complete seal between Outside Frame (4) and Structural Wall (48).
a and 5b, Replacement Frame (70) is a cut-away section of Outside Frame (4) with alternate Remodel Flange (71). In practice, Setting Block (72) is fastened to Existing Wall (73) and Remodel Flange (71) is connected the Setting Block (72) by means of Clip (74). Frame is sealed into Existing Wall (73) by means of Flexible Caulk (76).
Although the invention has been described with reference to a specific embodiment, the description is not meant to be construed in a limiting sense. On the contrary, various modifications of the disclosed embodiments will become apparent to those skilled in the art upon reference to the description of the invention. It is therefore contemplated that the appended claims will cover such modifications, alternatives, and equivalents that fall within the true spirit and scope of the invention.
This application claims priority to, the benefit of, and incorporates herein by reference U.S. application Ser. No. 61/647,796, filed May 16, 2012
Number | Date | Country | |
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61647796 | May 2012 | US |