Process for manufacturing plates from wood shavings and fibers

Claim 1

A PROCESS OF MANUFACTURING PLATES FROM WOOD SHAVINGS AND FIBERS COMPRISING THE STEPS OF MIXING WOOD SHAVINGS AND FIBERS WITH A BINDER; FORMING A PAIR OF LAYERS FROM SAID BINDER TREATED MATERIAL WITH A THIRD LAYER OF WOOD SHAVINGS AND FIBERS WITHOUT A BINDER SANDWICHED THEREBETWEEN; APPLYING HEAT AND PRESSURE TO SAID SUPERIMPOSED LAYERS TO FORM A PAIR OF PLATES FROM SAID LAYERS OF BINDER TREATED MATERIAL, WHEREBY MOISTURE CONTAINED IN SAID PAIR OF LAYERS AND VAPORS FORMING DURING THE PROCESS WILL BE AT LEAST IN PART ABSORBED BY SAID THIRD LAYER; SEPARATING SAID PLATES FROM SAID THIRD LAYER; MIXING THE MATERIAL OF SAID THIRD LAYER WITH A BINDER; AND USING THE THUS OBTAINED MIXTURE FOR FORMING AT LEAST PART OF A PAIR OF LAYERS FOR FORMING PLATES THEREFROM DURING THE NEXT OPERATING CYCLE.