Abstract: A blanketing system for securing a roof-covered structure during a windstorm, such as a hurricane, typhoon, cyclone or tornado. The system typically includes sections or panels in the form of cargo nets that can be joined together by connection hardware and anchored to the foundation of the building by tie-down straps. Each of the interconnecting cargo net panels can be custom made to precisely fit a specific portion of the roof, and the panels are connected to form a large blanket which precisely fits the specific roof for which it was designed. The blanket is secured by the tie-down straps to anchors in the foundation, and is suitable for covering a wide variety of roof structures, and can be rapidly shipped, installed, removed, and placed into storage until needed.

Abstract: A plug for sealing high pressure tubes is made from a memory-shape alloy. The plug is formed having a diameter greater than the inner diameter of the tube and is shaped by cooling to its martensite finish temperature and bending its wings in opposing directions such that at a later time, it will fit within the tube. After insertion into the tube, the plug is heated to its austenite finish temperature, restoring its wings to almost their original shape, thereby exerting force onto the tube walls, sealing the tube from leakage.