Patent ID: 7467502
Filing Date: 2008-12-23
Classification: A47B,E04B

Abstract:
1. A block formed of six rectangular panels fitted together by: sliding capturable elements into cooperating receiving grooves, all of the panels having a common thickness, each of the panels having two parallel faces, the panels comprising a pair of centrally grooved panels, a pair of centrally tongued panels and a pair of peripherally tongued panels, wherein each centrally grooved panel comprises at least three parallel receiving grooves extending entirely across the panel, at least one of the receiving grooves open to a first face, symmetrically disposed about a midline thereof, and having a respective notch at each end thereof; and two of the receiving grooves open to the second face and centered one half of the thickness from respective edges of the panel; each centrally tongued panel comprises at least one capturable element extending at least part of the way across a first face thereof, the capturable element symmetrically disposed about a midline of the first face; the centrally tongued panel further having two parallel receiving grooves open to the second face, each receiving groove centered one half of the thickness from a respective edge of the panel and extending entirely therealong; each centrally tongued panel further having at least one pair of edge notches aligned with a respective at least one capturable element; and each of the peripherally tongued panels has a respective capturable element extending along each of its four edges.