Apparatus for applying a plastic coating to threads, yarns, etc.

Claim 1

THREAD COATING APPARATUS COMPRISING THE FOLLOWING ELEMENTS ARRANGED TO FORM A RECURRENT CIRCULATION SYSTEM FOR CONDUCTING A MIST OF ATOMIZED LIQUID PLASTIC PARTICLES IN AMBIENT RELATION TO THREADS TO BE COATED WITH SAID PLASTIC: A TANK FOR CONTAINING A BODY OF SAID PLASTIC UP TO A PREDERTERMINE HIGH LEVEL THERMOSTATICALLY CONTROLLED HEATING MEANS FOR SAID TANK FOR CREATING AN ATMOSPHERE OF VAPOR FROM SAID PLASTIC ABOVE SAID LIQUID LEVEL, A COATING CHAMBER HAVING TOP AND BOTTOM WALLS WITH SIMILAR PATTERNS OF PERFORATIONS THROUGH WHICH MOVING THREADS ARE ADAPTED TO PASS VERTICALLY THROUGH SAID CHAMBER, A MIST-SUPPLYING CONDUIT ESTABLISHING COMMUNICATION BETWEEN SAID TANK ABOVE SAID LIQUID LEVEL AND THE LOWER PART OF SAID COATING CHAMBER, AN ATOMIZING NOZZLE IN SAID CONDUIT CONNECTED TO SAID TANK BELOW SAID LIQUID LEVEL, A BLOWER IN SAID CONDUIT BETWEEN SAID TANK AND NOZZLE FOR DIRECTING A BLAST OF THE VAPOR FROM SAID PLASTIC ACROSS SAID NOZZLE TO RAISE LIQUID TOTHE MOUTH OF SAID NOZZLE AND ATOMIZE IT PRODUCING A MIST, AND A RETURN CONDUIT ESTABLISHING COMMUNICATION BETWEEN THE UPPER PART OF SAID COATING CHAMBER AND SAID TANK ABOVE SAID LIQUID LEVEL.