Farley, Inc.

Farley Metals, Inc.

Howard R Leffel, Jr

George S Spatoulas

Carl S Hardwicke

Elevated floor plate

The disclosure concerns a square die-cast elevated floor plate having a top continuous or perforated panel reinforced underneath by a polygonal tessellation grid of ribs. All of the ribs of the grid, including their integral ejector pin bosses, and, if desired, the peripheral ribs or border flange, are of the same depth; however, concentric rows of polygons in the tessellation pattern have their ribs gradually increasing in thickness from the border flange to the center of the plate. The polygons in the pattern may comprise squares and octagons in which alternate sides of the octagons have a ratio of one to the square-root-of-two, and the sides of the squares correspond to the sides having the square-root-of-two length. The continuous or perforated top panel may be formed integrally or adhered to the tessellation rib pattern. The rib pattern with its integral ejector pin bosses is preferably symmetrical for at least 180.degree. rotation of its die. The integral ejector pin bosses are preferably located along the ribs of the octagons so that they align with the ends of slotted perforations in the top panel. The thickness of the perforated floor panel may be greater than that of the continuous top panel. These floor plates may be supported at their adjacent corners by vertically adjustable jacks.

The disclosure concerns a square die-cast elevated floor plate having a top continuous or perforated panel reinforced underneath by a polygonal tessellation grid of ribs. All of the ribs of the grid, including their integral ejector pin bosses and border flange, are of the same depth; however, concentric rows of polygons in the tessellation pattern have their ribs gradually increasing in thickness from the border flange to the center of the plate. The polygons in the pattern may comprise squares and octagons in which alternate sides of the octagons have a ratio of one to the square-root-of-two, and the sides of the squares correspond to the sides having the square-root-of-two length. The continuous or perforated top panel may be formed integrally or adhered to the tessellation rib pattern. The rib pattern with its integral ejector pin bosses is preferably symmetrical for at least 180.degree. rotation of its die. The integral ejector pin bosses are preferably located along the ribs of the octagons so that they align with the ends of slotted perforations in the top panel. The thickness of the perforated floor panel may be greater than that of the continuous top panel. These plates may be supported at their adjacent corners by vertically adjustable jacks.

Growing community of inventors

Maumee, OH, United States of America

Howard R Leffel, Jr