Patent ID: 6823653
Filing Date: 2004-11-30
Classification: B29B,B29C,B65B

Abstract:
A sanitary precision polymer film casting and dispersion injection system for creating individual containers of particulate matter in a safe and economical manner comprising, in combination:(A) a precision controlled output master supply assembly including (i) a horizontal base for the receipt of a 35 to 200 gallon drum of a polymer, the polymer being solid at ambient conditions but when heated becomes a flowable material for forming a film and for cohesion, the drum having a first height and a first diameter, (ii) a platen in a circular configuration having an upper surface and a lower surface, the platen being fabricated of stainless steel with a second diameter slightly less than the first diameter and positionable in the drum upon the surface of the polymer, the platen having a heating component there within and an upper surface with an outlet orifices and a lower surface in a generally cone-shaped configuration with spaced inlet orifices and with passageways through the platen from the inlet orifices to the outlet orifices for the passage of polymer there through, (iii) a positive displacement pump, positioned on the upper surface of the platen for movement therewith and for the positive feeding of polymer, (iv) four equally spaced support rods vertically disposed with lower ends slidably receiving the platen and an upper platform with apertures for the passage of the support rods there through, (v) a pair of laterally disposed guide rods parallel with the support rods but located exterior of the drum with associated supports with apertures for receiving the rods and (vi) a cross brace coupling the upper ends of the support rods and the guide rods to effect the vertical reciprocation of the platen downwardly corresponding to the exterior usage of the polymer; (B) an intermediate transfer assembly including a (i) horizontal base for the receipt of a bottom inlet 3 to 110 gallon heated, jacketed pail, a (ii) heated platen having a heating component there within and an upper surface with two outlet orifices and a lower surface in a generally cone-shaped configuration with spaced inlet orifices and with passageways through the platen from the inlet orifices to the outlet orifices for the passage of polymer there through, a (iii) dual outlet pump, a (iv) double elevator, and a (v) control assembly; (C) a polymer dispensing assembly including (i) two inline dual state cleanable filter assemblies each filter assembly having an inlet and outlet, (ii) two filter elements, and (iii) a central heated cleanable filter body; (D) a polymer handling assembly including (i) two dies of similar configuration, each of the dies having a mounting plate, a distribution plate parallel with the mounting plate, the distribution plate having an upper edge with an aperture for the receipt of liquid polymer, a heater plate with an insulator dielectric plate between the heater and the mounting plate, a shim in an inverted U-shaped configuration adjacent to the distribution plate and an extrusion face between the shim and the heater, all the plates having a generally rectilinear configuration with an upper edge, a lower edge and side edges there between whereby polymer may be fed through the distribution plate there through the opening in the shim, (ii) a pair of roller conveyors rotatable above parallel axes with exterior surfaces immediately beneath the shim, (iii) a pair of rotary cohesion dies having axes parallel with each other and the axes of the roller conveyor located between the roller conveyors, the rotary cohesion dies being in closely spaced relationship with each other with circumferential pressure surfaces, and (iv) a positive displacement pumping device providing dial-in incremental, thermal and precise dosage control located above the rotary cohesion dies for the periodic dispensing of particulate materials between packets formed with the solidification of the polymer moving between the rotary cohesion dies; (E) primary hoses in fluid communication with the precision controlled master output supply assembly and the intermediate transfer assembly and a pair of second hoses in fluid communication with the intermediate transfer assembly and the polymer dispensing assembly, the hoses including cleanable sanitary supply tubes of flexible material with braided metallic wire on their exterior surface and an electrical heating wire wrapped around the exterior surface of the supply tube with an electrical insulator thereover; and (F) a control assembly coupling the precision controlled output master supply assembly the intermediate transfer assembly, the polymer dispensing assembly, and the polymer handling assembly for continuous and automatic control of the speed of the pumps and the rate of rotation of the roller conveyors and the temperature heat of the tubes and the platens and the dies.