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| Number | Title | Issue Date |
| 8038430 | Method of using image data in the production of thin wall extrusions A method of coating metal wire with extrudate using an extrusion system. The method includes the steps of advancing the metal wire through an extrusion die of the extrusion system and extruding molten extrudate over the metal wire as the metal wire is advanced throu... | 10/18/2011 |
| 7632086 | Melt fracture reduction Melt fracture is reduced, without the necessity of polymer processing-aid additives specifically designed to alleviate exit region surface melt fracture phenomenon, by heating at least a portion of the die through which the polymer is extruded. The die exit region i... | 12/15/2009 |
| 7524179 | Center heated die plate with two heat zones for underwater pelletizer A center heated die plate for an underwater pelletizer radiates heat outwardly to the extrusion orifices and die faces of the die plate thereby maintaining the die plate and extrusion orifices at an elevated temperature to obtain optimum flow of molten polymer throu... | 04/28/2009 |
| 7458798 | Apparatus for extruding polymers employing microwave energy An apparatus and method for molding balloon catheters is disclosed. The balloon may be molded by providing a polymeric tube within a mold having an interior cavity in the shape of the desired balloon. Microwave energy, which may be generated by a gyrotron, may then ... | 12/02/2008 |
| 7411163 | Device for providing a melt The invention relates to a device (1) for providing a melt, in particular a plastic melt. Said device (1) comprises a feed unit (2) for material components, at least one purification unit (4) for the flowing melt, in particular a rotatabl... | 08/12/2008 |
| 7402034 | Center heated die plate for underwater pelletizer A center heated die plate for an underwater pelletizer radiates heat outwardly to the extrusion orifices and die faces of the die plate thereby maintaining the die plate and extrusion orifices at an elevated temperature to obtain optimum flow of molten polymer throu... | 07/22/2008 |
| 7320585 | Device for the hot granulation of thermoplastic polymers Device for the hot granulation of thermoplastic polymers, optionally expandable, which comprises: a) a die (1) containing a series of small plates (6), equipped with a series of extrusion holes, and a plurality of feeding ducts (3) situated insi... | 01/22/2008 |
| 7318720 | Die assembly and production process for profile extrusion The invention discloses an improved die assembly for the extrusion of thermoplastic resin cellulosic fiber composite profiles meant to minimize and substantially prevent the occurrence of melt fracture on the surface of the extruded composite profiles. Comprising th... | 01/15/2008 |
| 7279043 | Application device An applicator device and method where on the one hand adherence of particles in the dispensing area of the applicator nozzle, and on the other hand a thermal deflection of applicator device components can be prevented, or at least minimized. At least one thermal con... | 10/09/2007 |
| 7275927 | Multi-channel cooling die A cooling die, for use in the manufacture of extruded food products, the cooling die including: a plurality of core members forming a main body portion of the cooling die between die inlet and outlet ends and arranged about an axis of the die in neighboring relation... | 10/02/2007 |
| 7252111 | Transport of highly viscous fluids in closed pipeline systems Apparatus far equilibrating differences between flow rates into and out of closed pipeline systems, which apparatus includes a tank having a supply line and a discharge unit, with a displaceable plate; the supply being fed to the tank through the displaceable plate,... | 08/07/2007 |
| 7238018 | Method and apparatus for heating plastic extruding die A coil surrounding only the tip of nozzles of a plastic extruding die is provided. By passing a high frequency current through the coil to selectively heat only the tip of the nozzles. Further, in a plastic extruding die in which a high frequency current is passed t... | 07/03/2007 |
| 7195471 | Blowing head for extruding films, comprising clamping elements containing ducts for cooling air Tubular film die head for extruding single-layer or multi-layer film which has at least the following features: a substantially annular die gap, fastening elements which fix at least two components with respect to one another which together border areas bearing plas... | 03/27/2007 |
| 7186102 | Apparatus and method for low-density cellular wood plastic composites A low-pressure CO2 tank or an air compressor with a refrigerated air dryer is attached either at or after the vent zone of a standard twin-screw extruder. During or after extrusion, the gas is dissolved in the wood-plastic melt. The CO2 expands... | 03/06/2007 |
| 7168934 | Installation for producing cables A system for producing cables includes an extrusion apparatus with at least one extruder and a head for receiving at least one line of the cable. An induction heating apparatus is disposed downstream of the extrusion apparatus. Downstream of the head and the inducti... | 01/30/2007 |
| 7163655 | Method and apparatus for extruding polymers employing microwave energy An apparatus and method for molding balloon catheters is disclosed. The balloon may be molded by providing a polymeric tube within a mold having an interior cavity in the shape of the desired balloon. Microwave energy, which may be generated by a gyrotron, may then ... | 01/16/2007 |
| 7147460 | Device for shaping plastic objects under inert atmosphere The invention relates to a device for producing plastic articles by forming them in an inert atmosphere, the device comprising a hopper, a feed screw and means for forming the polymer melt. The device for injecting inert gas comprises a gas feed pipe, a gas injectio... | 12/12/2006 |
| 7144543 | Method and device for producing plastic profiles The invention relates to a method for producing plastic profiles comprised of at least one hard profile strand (2), for example, consisting of hard PVC, and of at least one soft profile strand (1), for example, consisting of soft PVC, whereby both prof... | 12/05/2006 |
| 7140855 | Inner mandrel An internal mandrel for cooling a tubular thin film is disclosed where an air layer is eliminated in the lower side cooler of the internal mandrel, so that the tubular thin film can be continuously and stably produced. In the internal mandrel for directly cooling th... | 11/28/2006 |
| RE39399 | Segmented die for applying hot melt adhesives or other polymer melts A segmented die assembly comprises a plurality of side-by-side and separate units. Each die unit, includes a manifold segment and a die module mounted thereon. The manifold segments are interconnected and function to deliver process air and polymer melt to the modul... | 11/14/2006 |
| 7125235 | Pressurized plate-heated material die and method of constructing a pressurized plate-heated die A pressurized, plate-heated die system has a distribution plate. A material feed tube is coupled to a material feed aperture in the die. The die has a U-shaped shim, a first insulator dielectric plate with a temperature sensor there in and a heating element. The die... | 10/24/2006 |
| 7118362 | Pellet-type foams of non-crosslinked polypropylene resin having lower melting point and process and device for producing the same and molded foams therefrom The present invention relates to a pellet-type non-crosslinked polypropylene foam having a melting point of 125 to 140° C., and a process and device for producing said foam. Since the pellet-type foams of non-crosslinked polypropylene of the present invention has a... | 10/10/2006 |
| 7112050 | Extrusion die for making a double-skin honeycomb substrate A honeycomb substrate includes an inner body having an inner skin and an array of inner webs defining an array of inner cells within the inner skin. The honeycomb substrate further includes an outer body having an outer skin formed concentric with the inner skin and... | 09/26/2006 |
| 7108495 | Apparatus for continuous forming shaped polymeric articles This invention relates to methods and apparatus for manufacturing shaped polymeric articles by substantially continuous vacuum forming. The method includes providing a sheet of hot polymeric material which is disposed onto a rotating belt having a mold impression. V... | 09/19/2006 |
| 7090480 | Method and apparatus for molding ceramic sheet A method and an apparatus capable of extrusion molding a comparatively wide, thin ceramic sheet using a screw extruder while suppressing the wrinkling thereof. The molding apparatus includes a screw-type extruder and a mold at the forward end of the extruder is used... | 08/15/2006 |
| 7074027 | Extrusion die and method for forming dual wall corrugated plastic pipe and dual wall plastic pipe having a foam annular core Extrusion dies for forming dual wall corrugated plastic pipe and dual wall plastic pipe having a foam annular core that provides homogenous melt flow to each axially displaced orifice by means of an individual concentric spiral mandrel are disclosed. Spiral mandrels... | 07/11/2006 |
| 7037094 | Foodspread applicator A foodspread applicator that stores, measures, and applies foodspreads of the present invention preferably includes a main body having a front end and a rear end, a body tip attached to the front end of the main body, and a rear body attached to the rear end of the ... | 05/02/2006 |
| 7018191 | Plastics extruder dimension and viscosity control system An extrusion control system that controls the cross section and viscosity during extrusion of even hard to control plastics like polyurethane. Cross section, A, is determined by measuring volumetric rate of deliver of melt through a gear pump V/t and the speed of th... | 03/28/2006 |
| 7018187 | Apparatus for smoothing and cooling a synthetic resin web produced by a slit nozzle An apparatus for smoothing and cooling of slit nozzle synthetic web passes the web following the smoothing gap between two rollers along a cooled surface and into contact with cold air introduced by cold air chamber open toward the roller surface. ... | 03/28/2006 |
| 7014447 | Extruder for welding plastic components An extruder for welding plastic components, comprising a front part for plasticizing and ejecting additional plastic welding material, and a rear part, for feeding and breaking up a continuous filament made of the additional plastic material. The rear part comprises... | 03/21/2006 |
| 7014449 | Process and apparatus for forming dual hose cuffs, hose, e.g. corrugated hose, provided with cuffs, hose cuffs and hose, e.g. corrugated hose, provided with cuffs formed by such process Apparatus and process for forming dual hose cuffs for being split to provide one hose cuff on one length of hose, particularly a corrugated hose, and another hose cuff on another length of hose, particularly a corrugated hose. Cuffs, or hose cuffs, formed by such pr... | 03/21/2006 |
| 7008203 | Device for granulating a thermoplastic, which is extruded from nozzles The present invention relates to a device for granulating thermoplastic materials issuing from orifices, said orifices being provided in a substantially circular arrangement in an orifice plate and being swept by blades rotating about a blade carrier shaft, said bla... | 03/07/2006 |
| 7008577 | Extrusion head for expanded plastic tubes An extrusion head for the manufacture of tubes including at least one layer of expanded plastic by extruding a stream of molten plastic containing a blowing agent through an annular passage cross section made in the extrusion head. The stream of molten plastic conta... | 03/07/2006 |
| 7005161 | Vapor deposition of solid oligomers A monomer is selected to produce a polymeric film having desirable characteristics for a particular application. The monomer is ppolymerized under controlled conditions to produce a solid oligomer having those characteristics at a molecular weight suitable for evapo... | 02/28/2006 |
| 6991445 | Siding production line cooling apparatus and method A production line for the manufacture of strips of vinyl siding comprises an extruder extruding a strip of hot plastic material, such as vinyl. Next, an embosser supplies a decorative pattern to the heated strip. A cooling apparatus receives the heated strip and imm... | 01/31/2006 |
| 6990791 | Encapsulation machine with valved injection wedge This invention relates to a method and apparatus for forming soft capsules and provides novel processing flexibility. The apparatus comprises a three-way valve injector wedge. This injector wedge allows for set-up of the encapsulation machine with a placebo fill and... | 01/31/2006 |
| 6984676 | Extrusion of synthetic wood material An extrusion process is described for the extrusion of a synthetic wood material. The process includes a significantly higher compression ratio through which the extruded product must pass. The higher compression ratio results in significantly improved product quali... | 01/10/2006 |
| 6969484 | Manufacturing method and device for electret processed product A manufacturing method of an electret processed product, comprising the steps of allowing a section nozzle (22) to come into contact with a nonconductive fiber sheet (S) so as to cross in the lateral direction of the sheet while running the sheet, allowing th... | 11/29/2005 |
| 6957953 | Reservoir reducing screw tip An extruder for extruding extrudate is provided and includes a generally cylindrical barrel portion having an end face. A screw conveyor is rotatably arranged coaxially within the barrel portion and has a downstream end. The screw conveyor has helical flights that d... | 10/25/2005 |
| 6941860 | Method of briquetting metal chips and briquetting press A method and a briquetting press for briquetting metal chips, wherein stable briquettes/pressed component are produced. The actual length (Lact) of the pressed component is obtained by applying pressure (Pmax/Preq) using at least one... | 09/13/2005 |
