Patent ID: 6093912
Filing Date: 2000-07-25
Classification: B05C,B29B,B29K,F28F

Abstract:
A thermoplastic melting machine comprising:a thermoplastic material melting tank having a plurality of sides and a bottom portion having an angled bottom;an output line coupled to the bottom portion of said melting tank for discharging melted thermoplastic material from said melting tank;a plurality of heat exchanger units, each said heat exchanger unit having a plurality of fins surrounding a central core having an elongated bore therein, each said fin having a pair of angled sides, each angled side intersecting the other angled side of a fin with a curved surface and each said fin having one of said pair of angled sides intersecting another angled side of an adjacent fin with a curved base surface and, each said heat exchanger unit being mounted above the angled bottom of said melting tank for 360 degree contact with thermoplastic material in said melting tank and each heat exchanger unit being mounted generally parallel to each other heat exchanger unit between two said sides of said melting tank; anda plurality of resistance heating elements, each heating element being mounted in one heat exchanger unit central core elongated bore and coupled through one of said melting tank sides to an electrical source, whereby a thermoplastic material is melted in a melting tank having a plurality of finned heat exchanger units heating the thermoplastic material on a 360 degree finned surface.