Structural unit of reconstituted and reinforced wood products

Claim 1

AN ELONGATED STRUCTURAL BUILDING UNIT OF GENERALLY RECTANGUALR CROSS SECTION ABOUT A LONGITUDINAL AXIS AND COMPOSED OF METAL MEMBERS, WOOD PARTICLES AND A HARDENED THERMO-SETTING PLASTIC, SAID METAL MEMBERS BEING IN THE FORM OF A TRUSS HAVING CHORDS PARALLEL TO SAID AXIS, AND CONNECTING DIAGONALS, SAID CHORDS EXTENDING LONGITUDINALLY OF THE UNIT, ONE NEAR EACH OF TWO OPPOSITE EDGES THEREOF, SAID WOOD PARTICLES AND THERMO-SETTING PLASTIC ENCASING SAID TRUSS, AND PROVIDING COLUMNAR SUPPORT FOR THE MEMBERS THEREOF, SAID UNIT BEING SHAPED EXTERNALLY TO PREDETERMINED SIZE, CONSTRUCTED TO ACCEPT AND HOLD FASTENINGS SUCH AS NAILS, AND SAID WOOD PARTICLES BEING IN THE FORM OF LAYERS OF SUBSTANTIALLY FLAT FLAKES RANDOMLY ORIENTED IN PLANES WHICH ARE PARALLEL TO THE MAJOR AXIS OF THE UNIT, THE WOOD FLAKES BEING VARIABLE IN SIZE, WITH THE LARGER FLAKES FORMING LAYERS AT THE WIDER FACES OF THE UNIT AND THE SMALLER FLAKES FORMING A LAYER SURROUNDING THE TRUSS, THE SMALL FLAKES BEING SIZED SUBSTANTIALLY TO EFFECT MAXIMUM SURFACE CONTACT THEREOF WITH MEMBERS OF THE TRUSS.