Apparatus for cooling articles with particulate material

Claim 1

APPARATUS FOR COATING ARTICLES WITH PARTICULATE MATERIAL COMPRISING AN ELONGATED HORIZONTALLY-ORIENTED ESSENTIALLY-CYLINDRICAL CHAMBER OPEN AT OPPOSITE ENDS FOR ENTRANCE AND EXIT OF ARTICLES PASSED THERETHROUGH FOR COATING, A MULTIPLICITY OF STAGGERED INLET CONDUITS EMPTYING INTO THE MID-ZONE OF SAID CHAMBER INTERMEDIATE SAID OPEN OPPOSITE ENDS, SAID INLET CONDUITS BEING ADAPTED TO EMPTY PARTICULATED MATERIAL CARRIED BY AIR INTO SAID CHAMBER IN A DIRECTION ESSENTIALLY PERPENDICULAR TO A LINE THROUGH THE CENTER OF SAID CHAMBER FROM THE ENTRANCE TO THE EXIT OPENING THEREOF A GROUP OF EXHAUST CONDUITS CONNECTED TO AN EXHAUST ZONE OF SAID CHAMBER LOCATED INTERMEDIATE SAID MID-ZONE AND SAID ENTRANCE END OF SAID CHAMBER, A GROUP OF EXHAUST CONDUITS CONNECTED TO A SECOND EXHAUST ZONE OF SAID CHAMBER LOCATED INTERMEDIATE THE MID-ZONE OF SAID CHAMBER AND SAID EXIT OPENING OF SAID CHAMBER, SAID EXHAUST CONDUITS BEING EFFECTIVE TO REMOVE AIR AND NONCOATED PARTICULATE FROM SAID CHAMBER SO AS TO OBVIATE SIGNIFICANT ESCAPE OF SAID NON-COATED PARTICULATE FROM THE OPEN ENDS OF SAID CHAMBER, AND MEANS TO SUPPORT ARTICLES PASSING THROUGH SAID HORIZONTALLY-ORIENTED CHAMBER FROM THE ENTRANCE TO THE EXIT OPENING THEREOF WITHOUT PHYSICAL CONTACT BETWEEN SAID ARTICLES AND SAID CHAMBER.