Thermoplastic dispensing device

Details Thermoplastic dispensing device Thermoplastic dispensing device

1983-01-07

1985-11-12

Rolla, Joseph J.

Dispensing

With heating or cooling means

Heating only

222325, 137522, 251 82, 425 87, 425458, B67D 532

Patent

active

045522871

ABSTRACT:
A device for dispensing molten thermoplastic material which an operator grips while using his thumb to press a solid block of the thermoplastic material through a sleeve and into a heated melting chamber from which the molten thermoplastic material is discharged through a nozzle. The device includes a bracket adapted to hold a second block of thermoplastic material in end-to-end relationship with a first block in the sleeve, and a heated barrier ring at the inlet to the melting chamber that restricts escape of the molten thermoplastic material through the sleeve; and may also include a slidable pressure plate between the block and an operator's thumb and/or a trigger-operated outlet valve between the melting chamber and nozzle.

REFERENCES:
patent: 448065 (1891-03-01), McShane
patent: 2600660 (1952-06-01), Kochner
patent: 3204828 (1965-09-01), Paulsen
patent: 3298572 (1967-01-01), Newton
patent: 3337093 (1967-08-01), Newton
patent: 3430816 (1969-03-01), Nadherny et al.
patent: 3612357 (1971-10-01), Ruskin
patent: 3740295 (1973-06-01), Brown
patent: 3951308 (1976-04-01), Thirtle
patent: 3954206 (1976-05-01), Salonen
patent: 3960296 (1976-06-01), Nord

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