Apparatus and method for windlocking a building opening
Patent 6341639 Issued on January 29, 2002. Estimated Expiration Date: 
August 23, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 23, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 516018 1692206 2803297 3292685 3516469 Profile strip for framing and fastening secondary glazing panes Storm window framing Flexible sheet rollup window structure Chambered element for use in forming a roller screen Shutter and awning device InventorsApplicationNo. 644924 filed on 08/23/2000US Classes:160/267.1, Fabric side edge and stick160/264, With fabric reinforcements160/273.1, With interlock between fabric and guide160/310Electric operation or controlExaminersPrimary: Johnson, Brian L.Attorney, Agent or FirmForeign Patent References
International ClassE06B 009/56AbstractAn apparatus and method for windlocking a curtain over an opening in a building is disclosed and claimed. The windlocking curtain can reside to the exterior or to the interior of the window, door or other opening and protects it from the intrusion of air, water or debris. In its upper position the windlocking curtain permits normal use of the opening and in its lower position it secures the opening. A flexible corrugated curtain has tension rods therethrough and the tension rods run in tracks on each side of the curtain and necessarily on each side of the opening. Interengagement of the tension rods with the tracks is accomplished by deformations in the rods that are referred to as interrupts. In one embodiment the rods are successively longer from top to bottom of the curtain and their interrupts matingly wedge with angled tracks to secure the curtain. In another embodiment the interrupts matingly engage parallel tracks upon the application of force due to wind, fluid (usually water or sea water) or debris. In another embodiment tension rods and interrupts are not used or necessary and a flap on the edges of a flexible curtain engage the side tracks absorbing shocking and sealing the opening. A method for securing the opening utilizing the apparatus is also claimed which provides top, bottom and side securement. | |
