Static structures (e.g. – buildings) – With lifting or handling means for primary component or... – Position adjusting means; e.g. – leveling
Patent
1976-01-12
1978-01-10
Ridgill, Jr., James L.
Static structures (e.g., buildings)
With lifting or handling means for primary component or...
Position adjusting means; e.g., leveling
52602, 52263, E04B 508, E04C 206
Patent
active
040671569
ABSTRACT:
A panel for elevated access floors is disclosed in which the panel is formed of reinforced expanded lightweight concrete. The reinforcing is provided by a grid including two arrays of parallel reinforcing rods which extend parallel to the associated panel edges and perpendicular to the rods of the other grid. A frame is provided by the grid around the two arrays. The grid is located adjacent to the lower surface of the body and divides the body into a plurality of square zones. Located in each zone, excepting the zones at the corners, is a pyramid-shaped cavity which extends from a base at the lower surface of the panel upwardly at about 45.degree. to an apex spaced from the upper surface of the panel. The presence of the pyramid-shaped cavities does not materially reduce the strength of the panel when compared to a similar panel without such cavities, but reduces the weight of the panel and the material required to manufacture the panel.
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patent: 2522116 (1950-09-01), Hayes
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Donn Products, Inc.
Ridgill, Jr. James L.
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