Filler, particularly for foam molding

Claim 1

A FILLER NOZZLE ADAPTED TO BE CONNECTED TO A MOLDING DEVICE FOR SUPPLING PLASTIC BEADS TO A MOLD CAVITY THEREIN, SAID FILLER NOZZLE COMPRISING (A) AN ELONGATE HOLLOW BODY HAVING ONE END PORTION THEREOF ADAPTED TO BE COMMUNICATIVELY CONNECTED TO THE MOLD CAVITY AND HAVING AN INTERIOR WALL INCLUDING A CYLINDRICAL FIRST PORTION AND A CONICAL SECOND PORTION ADJACENT TO AND CONVERGING TOWARD SAID ONE END OF SAID HOLLOW BODY, (B) MEANS COMMUNICATIVELY CONNECTED TO SAID CYLINDRICAL FIRST PORTION OF SAID HOLLOW BODY AND ADAPTED TO BE CONNECTED TO A SOURCE OF PLASTIC BEADS FOR SUPPLYING PLASTIC BEADS TO THE INTERIOR OF SAID HOLLOW BODY, AND (C) AN ELONGATE HOLLOW VALVE ROD DISPOSED AXIALLY WITHIN SAID HOLLOW BODY WITH ONE END PORTION THEREOF DISPOSED WITHIN SAID CONICAL SECOND PORTION OF SAID HOLLOW BODY, SAID VALVE ROD BEING ADAPTED TO BE CONNECTED TO A SOURCE OF COMPRESSED AIR AND HAVING A CONSTRICTED ORIFICE IN SAID ONE END PORTION THEREOF FOR AIR DISCHARGE AT HIGH VELOCITY TOWARD SAID ONE END OF SAID HOLLOW BODY, SAID VALVE ROD BEING MOVABLE BETWEEN AN OPEN POSITION WHEREIN SAID ONE END THEREOF IS SPACED A SMALL PREDETERMINED DISTANCE REARWARDLY FROM SAID ONE END OF SAID HOLLOW BODY BUT FORWARDLY OF SAID BEAD SUPPLY MEANS AND AIR IS DISCHARGED FROM THE ORIFICE IN SAID ONE END THEREOF CLOSELY ADJACENT TO AND THROUGH SAID ONE END OF SAID BODY TO DRAW BEADS THROUGH SAID BEAD SUPPLY MEANS AND TO CARRY THE SAME THROUGH SAID ONE END OF THE BODY, AND A CLOSED POSITION WHEREIN SAID ONE END PORTION OF SAID VALVE ROD CLOSES THE OPENING THROUGH SAID ONE END OF SAID HOLLOW BODY TO THE PASSAGE OF BOTH AIR AND BEADS.