Static structures (e.g. – buildings) – Disparate sheet lamina between exposed surfaces of wall,... – Tie crossing dividing lamina
Patent
1993-04-12
1994-06-14
Friedman, Carl D.
Static structures (e.g., buildings)
Disparate sheet lamina between exposed surfaces of wall,...
Tie crossing dividing lamina
52408, 52417, 52461, 428 357, 428127, 428463, 428480, 428910, F04D 335, F04D 336, F04D 506, F04D 514
Patent
active
053199081
ABSTRACT:
A seamless tube useful in making a roofing batten is extruded from a polymeric material consisting essentially of a major amount of poly(ethylene terephthalate) and a minor amount of at least one polyolefin, flattened in a vacuum sizer so as to define two plies, and milled and drawn so as to orient the tube longitudinally. As milled and drawn, the tube is oriented so as to have a tensile strength of at least about 25,000 psi in a longitudinal direction. The plies are punched so as to have holes therethrough at spaced intervals along the tube. When used to make a roofing batten to coact with conventional fasteners, such as roofing screws, the tube exhibits superior characteristics of split resistance and pull-through resistance.
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Rathgeber Juergen O.
Vadhar Parimal M.
Van Erden Donald L.
Wojcik John P.
Friedman Carl D.
Illinois Tool Works Inc.
Kent Christopher T.
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