Static structures (e.g. – buildings) – Frangible section or means – Removable corner or internal section
Patent
1979-11-05
1981-07-21
Perham, Alfred C.
Static structures (e.g., buildings)
Frangible section or means
Removable corner or internal section
52 99, 523098, 52521, 52536, 52558, E04D 108, E04D 134
Patent
active
042791065
ABSTRACT:
A thin shell of hard plastic has a cavity within which a polyurethane foam is received. Each panel includes an upper, relatively straight-line edge, two side edges at substantially 90 degrees to the upper edge, and a lower, irregular edge having the appearance of a plurality of individual roofing shakes. The upper edge is canted upwardly for receipt within a groove in the underside of an upper overlapping panel. In addition, immediately adjacent the canted upper edge, there is a bandlike section through which roofing nails may be applied for securing the panel to the roof. The undersurface of each panel includes a stepped arrangement, not unlike that encountered in a roof constructed of individual shakes, which arrangement enables a pair of such panels to be fitted together with the top surface of one panel contacting the lower surface of another panel and forming a substantially parallel surface package for storage and shipment. An edge of each panel shell has a plurality of ribs which are pressed into the foam of the underside of an immediately adjacent panel to the side providing a barrier against the access of water.
REFERENCES:
patent: 2438099 (1948-03-01), Whitehouse
patent: 2811118 (1957-10-01), Ball
patent: 3605369 (1971-09-01), Merrill et al.
patent: 3783570 (1974-01-01), Storch
patent: 3852934 (1974-12-01), Kirkhuff
patent: 3868804 (1975-03-01), Tantlinger
Gleason Charles H.
Greenleaf James O.
Netter George J.
Perham Alfred C.
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