Apparatus for forming particle boards

Claim 1

APPARATUS FOR FORMING A PARTICLE MAT COMPRISING MEANS FOR SUPPORTING THE MAT, A FIRST CHAMBER, A SECOND CHAMBER, SAID MAT SUPPORTING MEANS EXTENDING CONTINUOUSLY UNDER SAID CHAMBERS, EACH OF SAID CHAMBERS HAVING MEANS FOR DISPENSING PARTICLES ONTO THE MAT SUPPORTING MEANS, PLENUM CHAMBERS ADJACENT SAID FIRST AND SECOND CHAMBERS, SAID PLENUM CHAMBERS INCLUDING MEANS FOR DIRECTING A STREAM OF AIR THROUGH SAID FIRST AND SECOND CHAMBERS, FIRST AND SECOND AUXILIARY DISPENSERS, MEANS MOUNTING SAID AUXILIARY DISPENSERS OVER SAID MAT SUPPORTING MEANS AND BETWEEN SAID CHAMBERS, EACH OF SAID PLENUM CHAMBERS DIRECTING A STREAM OF AIR AWAY FROM THE OTHER PLENUM CHAMBER, A HOPPER BETWEEN SAID FIRST AND SECOND AUXILIARY DISPENSERS FOR DISPENSING RESIN COMPOSITION ONTO SAID MAT SUPPORTING MEANS, MEANS BETWEEN SAID FIRST AND SECOND AUXILIARY DISPENSERS FOR FEEDING A WEB OF MATERIAL ONTO SAID MAT SUPPORTING MEANS, AND MEANS FOR EFFECTING RELATIVE MOTION OF THE MAT SUPPORTING MEANS WITH RESPECT TO SAID CHAMBERS AND SAID DISPENSERS, WHEREBY PARTICLES FOR NON-UNIFORM SIZE ARE DISTRIBUTED ACCORDING TO SIZE IN THE FIRST AND SECOND CHAMBERS WHILE UNIFORM PARTICLES ARE DISTRIBUTED IN INTERMEDIATE, HOMOGENOUS LAYERS BY SAID FIRST AND SECOND DISPENSERS AND A LAYER OF RESIN COMPOSITION AND A WEB OF MATERIAL IS APPLIED TO THE SURFACE OF THE MAT BETWEEN SAID FIRST AND SECOND AUXILIARY DISPENSERS.