Applicator for extruding molten thermoplastic material

Details Applicator for extruding molten thermoplastic material Applicator for extruding molten thermoplastic material

1974-01-30

1976-05-04

Reeves, Robert B.

Dispensing

With heating or cooling means

Cooling only

219421, 222333, 425144, B27G 1102

Patent

active

039542068

ABSTRACT:
A hand held applicator for extruding molten thermoplastic material wherein a supply of the material is contained within an attached receptacle, which receptacle is provided with means for melting a portion of the material contained therein. The melted material within the receptacle is drawn under reduced pressure into a passageway extending through a heated member, and is extruded under increased pressure from a valve controlled orifice provided on one end of the passageway by means of either a motor driven conveyor screw or an electromechanical solenoid actuated piston. Heat for melting the plastic material is conducted from the heated member to the inside of the receptacle by means of a metallic duct member which communicatively connects the inside base region of the receptacle to the passageway. Melting of the plastic material is confined to the base region of the receptacle by thermally insulating the walls of the receptacle from the heated inner base region. Means are provided for regulating the temperature of the melted material at the base of the receptacle.

REFERENCES:
patent: 2363375 (1944-11-01), Wild
patent: 2518748 (1950-08-01), Breer et al.
patent: 2839653 (1958-06-01), Kane
patent: 2979234 (1961-04-01), Kamborian
patent: 3750905 (1973-08-01), Wolfrom
patent: 3773069 (1973-11-01), Rebentisch

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