Back to results
US 4,348,442 AGranted
Structural panel
OwnerIrving E. Figgeinventor
Life of this patent
Estimating the term…
Abstract
A structural panel comprises truncated polyhedral elements projecting from a base sheet, with the base sheet and truncation surfaces providing increased bonding areas for external face sheets. Mass produced, identical panels which are nestable for shipping and storage may be combined in an interlocking arrangement to form a combined panel which is nearly isotropic in its reaction to external loads.
Claims10
A combined structural panel comprising:
- at least two, substantially duplicate, single structural panels, each of said single structural panels comprising a base sheet, plural generally polyhedral-shaped load bearing elements protruding from said base sheet;
- each of said elements comprising a base attached to said base sheet, a truncated apex, and face structure connecting said base and said truncated apex;
- at least one of said single panels inverted with respect to at least one other of said single panels to define respective, opposing top and bottom panels, respectively, such that the elements of said top and bottom panels have their respective elements protruding in opposite directions;
- said elements of each single panel further comprising large and small elements, said large elements having a base-to-truncated apex height greater than that of said small elements, said large and small elements of each of said top and bottom panels alternately arranged such that truncated apexes of said small elements of opposing single panels abut and truncated apexes of said large elements of a single panel abut the base of the opposing single panel.
1 more element
Dependencies are inferred from the claim text.