Abstract: An emergency shelter structure is disclosed for use where people are displaced from their homes as the result of some catastrophe. The inventive shelter can be erected entirely without hand tools or power tools in less than 20 minutes. It is comprised of plastic panels which are joined together using push anchors, fasteners which permit rapid and permanent engagement of adjoining panels. Bed platforms are included as part of the assembly. In advanced embodiments, solar arrays are provided for harvesting solar energy for use as electricity and uni-directional heating apparatus is molded into the floor panel.

Abstract: An emergency shelter structure is disclosed for use where people are displaced from their homes as the result of some catastrophe. The inventive shelter can be erected entirely without hand tools or power tools in less than 20 minutes. It is comprised of plastic panels which are joined together using push anchors, fasteners which permit rapid and permanent engagement of adjoining panels. Bed platforms are included as part of the assembly. In advanced embodiments, solar arrays are provided for harvesting solar energy for use as electricity and uni-directional heating apparatus is molded into the floor panel.

Abstract: A dowel fastening device having a plurality of pivoting conical members having saw-tooth gripping surfaces for insertion in aligned drilled holes of adjacent elements, such as furniture parts, or in heavy duty applications such as with support members for continuous pipe installations.

Abstract: A wall anchor or support comprising a support end portion and a shank portion, a plurality of spaced triangular shaped members affixed to the shank and capable of limited pivotal movement when the shank is inserted in an opening in a wall structure and when force is applied to the anchor in a direction away from the wall structure. The plurality of spaced triangular shaped members have a curved surface and two straight side surfaces with the side surfaces being connected together at adjacent ends forming a joint and the curved surface frictionally gripping an interior surface of the opening when the force applied to the wall anchor in a direction away from the wall is applied, thereby preventing the wall anchor from being dislodged from the wall structure.