Method of filling enclosures with low density particulated material

Claim 1

THE METHOD OF DEPOSITING LOW DENSITY PARTICULATED MATERIAL BETWEEN WALLS WHICH FORM A SUBSTANTIALLY AIRTIGHT ENCLOSURE, EXCEPT FOR VENT AND FILL HOLES HEREINAFTER PROVIDED, FOR SAID MATERIAL COMPRISING: PROVIDING A VENT HOLE AND A FILL HOLE IN SAID WALLS; INSERTING AN ELONGATED SLOTTED VENT TUBE THROUGH SAID VENT HOLE, SAID VENT TUBE EXTENDING SUBSTANTIALLY THE ENTIRE LENGTH OF SAID ENCLOSURE AND HAVING SLOTS THROUGHOUT ITS LENGTH; INSERTING A FILL NOZZLE IN SAID FILL HOLE; DISCHARGING AN AIR STREAM CONTAINING SAID LOW DENSITY PARTICULATED MATERIAL FROM SAID FILL NOZZLE INTO SAID ENCLOSURE AND VENTING THE AIR STREAM WITHOUT THE LOW DENSITY PARTICULATE MATERIAL FROM SAID VENT TUBE AS SAID MATERIAL DEPOSITS IN SAID ENCLOSURE, WHEREBY THE SLOTTED VENT TUBE EFFECTIVELY FUNCTIONS AS A FILTER MAT PROMOTING THE DISPERSION OF INSULATION THROUGHOUT THE ENCLOSURE, UNTIL NO MORE MATERIAL CAN ENTER SAID ENCLOSURE; THEN WITHDRAWING SAID VENT TUBE AND REMOVING SAID FILL NOZZLE AND CLOSING SAID FILL AND VENT HOLES.

Claim 2

THE METHOD OF DEPOSITING LOW DENSITY PARTICULATED MATERIAL BETWEEN WALLS WHICH FORM A SUBSTANTIALLY AIRTIGHT ENCLOSURE, EXCEPT FOR VENT AND FILL HOLES HEREINAFTER PROVIDED, FOR SAID MATERIAL COMPRISING: PROVIDING A VENT HOLE AND A FILL HOLE IN SAID WALLS; INSERTING AN ELONGATED SLOTTED VENT TUBE THROUGH SAID VENT HOLE, SAID VENT TUBE EXTENDING SUBSTANTIALLY THE ENTIRE LENGTH OF SAID ENCLOSURE AND HAVING SLOTS THROUGHOUT ITS LENGTH; INSERTING A FILL NOZZLE IN SAID FILL HOLE; DISCHARGING AN AIR STREAM CONTAINING SAID LOW DENSITY PARTICULATED MATERIAL FROM SAID FILL NOZZLE INTO SAID ENCLOSURE AND VENTING THE AIR STREAM WITHOUT THE LOW DENSITY PARTICULATE MATERIAL FROM SAID VENT TUBE AS SAID MATERIAL DEPOSITS IN SAID ENCLOSURE, WHEREBY THE SLOTTED VENT TUBE EFFECTIVELY FUNCTIONS AS A FILTER MAT PROMOTING THE DISPERSION OF INSULATION THROUGHOUT THE ENCLOSURE, UNTIL NO MORE MATERIAL CAN ENTER SAID ENCLOSURE; THEN WITHDRAWING SAID VENT TUBE AND REMOVING SAID FILL NOZZLE AND CLOSING SAID FILL AND VENT HOLES.

Claim 3

THE METHOD OF FILLING A CAVITY IN A MOLD WITH A LOW DENSITY PARTIALLY EXPANDED THERMOPLASTIC RESIN COMPRISING: PROVIDING A VENT HOLE AND A FILL HOLE IN SAID MOLD; INSERTING AN ELONGATED VENT TUBE IN SAID VENT HOLE, SAID TUBE EXTENDING SUBSTANTIALLY THE ENTIRE LENGTH OF SAID CAVITY AND HAVING SLOTS THROUGHOUT ITS LENGTH;

Claim 4

THE METHOD OF FILLING A CAVITY IN A MOLD WITH A LOW DENSITY PARTIALLY EXPANDED THERMOPLASTIC RESIN COMPRISING: PROVIDING A VENT HOLE AND A FILL HOLE IN SAID MOLD; INSERTING AN ELONGATED VENT TUBE IN SAID VENT HOLE, SAID TUBE EXTENDING SUBSTANTIALLY THE ENTIRE LENGTH OF SAID CAVITY AND HAVING SLOTS THROUGHOUT ITS LENGTH;