Patent ID: 7416166

Claim:
A square leveler block formed in a single and unitary molding step of a polymer resin comprising: (a) a square floor plate whose from periphery extends uniformly downward to a first height outer sidewalls, thereby forming an underside cavity and whereby a lower rim of the outer sidewall defines a ground plane; (b) a central support square extending from the underside of the floor plate to the ground plane and located in a central part of the floor plate so that vertices of said central support square are directed to midpoints of the outer sidewalls and between which are located support flanges bisected by side peripheral supports having square cross sections and which extend from an underside of the floor plate to the ground plane and two of whose vertices are connected with said support flanges; (c) sixteen octagonal flat-topped connectors extending up from a top side of the floor plate, each define a cylindrical pin bore extending from a top opening to a closed end at the floor plate, where connectors are divided into four connector sets, each connector set having four octagonal connectors adjacently linked by low projections from the floor plate, each set being generally square and arranged at one of four corner portions of the top of the floor plate; (d) opposing and center facing sides of the octagonal connectors in a connector set are parallel, thereby defining in a central part of the connector set a square corner peripheral receiving cavity; (e) opposing and center facing sides of four central-most connectors of the four connector sets are parallel and define a square central receiving cavity; (f) opposing and center facing sides of the four connectors of two adjacent connector sets are parallel and define a square side peripheral receiving cavity; (g) from the underside of each said pin bore's closed end to the ground plane extends a pin cylinder, said cylinder having a diameter less than a diameter of said pin bore; (h) from the underside of a part of the floor plate of each corner peripheral receiving cavity to the ground plane extend corner peripheral supports having square cross sections and two of whose vertices are aligned with vertices of adjacent side peripheral supports; and (i) bridge flanges extending less than halfway from the underside of the floor plate to the ground plane and supportively connecting all elements extending down from the underside of the floor plate.