Thermoplastic dispensing device with outlet cooling chamber

Details Thermoplastic dispensing device with outlet cooling chamber Thermoplastic dispensing device with outlet cooling chamber

1984-01-12

1985-12-31

Rolla, Joseph J.

Dispensing

With heating or cooling means

Heating only

219230, B67D 562

Patent

active

045615691

ABSTRACT:
A device for dispensing molten thermoplastic material in which a solid block of thermoplastic material is pressed through a sleeve and into a heated melting chamber from which the molten thermoplastic material is discharged through a nozzle. A cooling assembly can be disposed between the melting chamber and the nozzle to provide means for substantially cooling the molten thermoplastic material (e.g., by 30.degree. F.) which can be advantageous where the temperature of molten thermoplastic material in the melting chamber can become so high that it will damage certain substrates on which the molten material will be dispensed.

REFERENCES:
patent: 3204828 (1965-09-01), Paulson
patent: 3298572 (1967-01-01), Newton
patent: 3788522 (1974-01-01), Mercer
patent: 3951308 (1976-04-01), Thirtle
patent: 4090643 (1978-05-01), Wilkinson, Jr.
patent: 4457457 (1984-07-01), Dziki

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