The present invention provides a bidirectional energy-transfer system comprising: a thermally and/or electrically conductive concrete, disposed in a structural object; a location of energy supply or demand that is physically isolated from, but in thermodynamic and/or electromagnetic communication with, the thermally and/or electrically conductive concrete; and a means of transferring energy between the structural object and the location of energy supply or demand. The system can be a single node in a neural network. The thermally and/or electrically conductive concrete includes a conductive, shock-absorbing material, such as graphite. Preferred compositions are disclosed for the thermally and/or electrically conductive concrete. The bidirectional energy-transfer system may be present in a solar-energy collection system, a grade beam, an indoor radiant flooring system, a structural wall or ceiling, a bridge, a roadway, a driveway, a parking lot, a commercial aviation runway, a military runway, a grain silo, or pavers, for example.

Furniture pieces which incorporate load-bearing or non-load bearing structures in which water or other material may be stored. By incorporating such storage capacity within furniture, a user may take advantage of space that would otherwise be unused or unusable to unobtrusively and conveniently store an emergency water supply or other desired material.

Furniture pieces which incorporate load-bearing or non-load bearing structures in which water or other material may be stored. By incorporating such storage capacity within furniture, a user may take advantage of space that would otherwise be unused or unusable to unobtrusively and conveniently store an emergency water supply or other desired material.

Paper-based elongate structures suitable for use as lumber substitutes, articles of manufacture made thereof, kits of materials including such structures, and machines and methods for making the same. Elongate structures according to the invention include a hollow outer portion formed of corrugated fiberboard sheet material and an accordion-folded inner support formed of corrugated fiberboard sheet material. The hollow outer portion has four outer surfaces that define a rectangle when viewed in cross-section transverse to a longitudinal axis of the elongate structure. The accordion-folded inner support is enclosed within the hollow outer portion. The inner support includes a plurality of first spaced-apart peaks that contact a first inner surface of the hollow outer portion and a plurality of second spaced-apart peaks that contact an opposing second inner surface of the hollow outer portion. The accordion-folded inner support structure improves the beam strength, crush resistance and lateral strength of the elongate structure.

A frameless furniture assembly adapted to be converted between an unfilled configuration and a filled configuration including: an outer liner having an inner surface and an outer surface; a plurality of pieces of fill material, wherein the fill material is retained withi n the outer liner; and a container holder associated with the outer liner. The frameless furniture assembly is preferably adapted to support a human in a seated position.

Buoyant rigid sunbath comprising at least one hull shaped so as to allow the lying position of at least one person so as it includes a core consisting of closed and hydrophobic cells able to ensure the buoyancy of the sunbath with the person lying thereon and sandwiched between two watertight rigid facings each constituting a hull, the assembly forming a panel shaped as desired.

Buoyant rigid sunbath comprising at least one hull shaped so as to allow the lying position of at least one person so as it includes a core consisting of closed and hydrophobic cells able to ensure the buoyancy of the sunbath with the person lying thereon and sandwiched between two watertight rigid facings each constituting a hull, the assembly forming a panel shaped as desired.

A knock-down furniture frame includes a plurality of panels having interlocking sides and at least one tensioning device having a band that draws the plurality of panels together under tension into an interlocking relationship. In one embodiment, the band may apply tension to each of the plurality of panels and extend exclusively within the interior space defined by the plurality of panels. In another embodiment, the band may be woven through the plurality of panels such that at least a first portion of the band extends along an outside surface of at least one of the plurality of panels and at least a second portion of the band extends within the interior space defined by the plurality of panels.

A knock-down furniture frame includes a plurality of panels having interlocking sides and at least one tensioning device having a band that draws the plurality of panels together under tension into an interlocking relationship. In one embodiment, the band may apply tension to each of the plurality of panels and extend exclusively within the interior space defined by the plurality of panels. In another embodiment, the band may be woven through the plurality of panels such that at least a first portion of the band extends along an outside surface of at least one of the plurality of panels and at least a second portion of the band extends within the interior space defined by the plurality of panels.