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| Number | Title | Issue Date |
| 7384256 | Screw feeder for roller compactor machine A screw feeder is provided for a powder roller compactor machine. The machine includes a hopper for holding powder and a pair of rollers for compacting the powder. A screw feeder transfers powder from the hopper to the rollers. The screw feeder includes an upper tap... | 06/10/2008 |
| 7329037 | Plasticating screw for an extruder or extrusion press, having a narrower land width in the transition region A plasticating screw for an extruder or an extrusion press has a thread change, whereby the volume of the transporting cross-section does not change and thus a pressure increase in the region of the thread is avoided. To this end, in the region wherein a first and a... | 02/12/2008 |
| 7131829 | Spiral die assembly A spiral die assembly can obtain a homogeneous pipe body, an inflation film with/without drawing and a functional film by dispersing molten resin homogeneously, and the spiral die assembly is capable of being applied to various molten resins and extruding conditions... | 11/07/2006 |
| 7037102 | Plunger molding machine with tapered bore and thermal transfer fins A plunger machine for molding reinforced polymer compositions is provided. The plunger machine has particular application in molding polymer that is reinforced with particles having an aspect ratio that is greater than 1:1. The plunger machine includes a barrel hous... | 05/02/2006 |
| 6966765 | Rotating circular die A rotating circular die for mounting on an extruder. The die incorporates an inner component comprising a cone with support independent of the outer component and extruder, thereby permitting forward and backward adjustment of the inner component in relation to the ... | 11/22/2005 |
| 6743006 | Die for extruding flowable materials and having a static mixer therein An extrusion/coating die. The die has an internal cavity and one or more static mixers in the die cavity. The static mixer fills the die cavity at its respective cross section. The die may also have one or more auxiliary inlets for separately admitting material/ener... | 06/01/2004 |
| 6508965 | Process and apparatus for the production of paper products A process and an apparatus for the production of paper products, such as "cat litter" or paper fuel, comprising reducing paper to a particulate form by shredding and grinding, conveying the particles of paper from a hopper as a layer on a first conveyor f... | 01/21/2003 |
| 6126878 | Apparatus and method for producing an extrudate An apparatus for producing an extrudate (e.g., water-dispersable extruded rod-shaped granules) from an extrudable powder-based material (e.g., a finely-divided water-insoluble powder) includes a hopper for the extrudable material having at least one extru... | 10/03/2000 |
| 5902531 | Apparatus and method for spinning polymeric yarns An apparatus and method for melt spinning polymeric yarns, wherein a main melt flow is generated by an extruder and supplied to a spin head. The spin head is enclosed in a heated spinning beam and comprises a mixer, a distributor pump and a plurality of s... | 05/11/1999 |
| 5798077 | Screw for plasticating apparatus and method of use A plasticating screw and method of plasticating without thermal degradation problems. Said screw having a metering section with a helical flight disposed within and cooperating with the innerwall of a heated barrel. In particular, solid resinous material ... | 08/25/1998 |
| 5660864 | Apparatus for introducing injection material into a mold By embodying a feed screw (17) for glass fiber reinforced polyester material with a hollow shaft, it is possible for the injection piston (11) for an injection unit (9) to have a compact structure so as to be passed through the feed screw (17). To process... | 08/26/1997 |
| 5637331 | Spin system for thermoplastic yarns A spin system for thermoplastic yarns is provided with a melt line, in which the main flow of the melt is transported to a distributor pump. The distributor pump comprises several individual pumps, which divide the main melt flow into several partial flow... | 06/10/1997 |
| 5456586 | Apparatus for manufacturing articles made of polyurethane An apparatus for manufacturing articles made of polyurethane that includes a mold assembly in communication with a mix chamber. The mix chamber is positioned below the mold assembly. The mix chamber includes a propeller for mixing the liquid polyurethane ... | 10/10/1995 |
| 5264261 | Fibre reinforced polymer compositions and process and apparatus for production thereof Fibrous network structures are produced within liquid polymer resins by passing the fiber-containing resin along a channel having a plurality of sets of flow modifying elements which establish a regulated succession of velocity profiles for the principal ... | 11/23/1993 |
| 5197803 | Mixer with movable wiper A mixer is mechanically self cleaned without using solvents. A housing defines a mixing chamber with a fluid pressurized mixer head rotatably supported within the housing. The mixer head has retractable mixing paddles. A wiper scrubs material from the mix... | 03/30/1993 |
| 5176925 | Extrusion die with static mixer insert A die for use in an extrusion process is disclosed wherein the die is formed with a flow channel, a portion of which is defined by a removable insert. The insert includes a static mixer arrangement over a predetermined portion thereof in order to create a... | 01/05/1993 |
| 5126088 | Method for producing an extrusion having a wood grain appearance and an associated apparatus A method for producing an extrusion having a wood grain appearance. A first extruder including a die and a second extruder which includes a housing and a screw is provided, the screw having a portion disposed within the housing and a portion projecting ou... | 06/30/1992 |
| 5088909 | Apparatus for extruding a marbleized synthetic-resin strand A marbleized thermplastic-resin strand is made from a matrix resin and an inlay resin in an apparatus having a die forming a passage extending along an axis and havng an upstream inlet end and a downstream outlet end and an extruder for injecting the matr... | 02/18/1992 |
| 4957675 | Method and apparatus for preparing caseinates In a method for preparing caseinates, including the introduction of casein, alkaline solutions or basic salts and water into an extruder, the constituents being thoroughly mixed together and then subjected to an increase in pressure and temperature under ... | 09/18/1990 |
| 4942842 | Apparatus for coating sheets of dough with fat A conveyor roller (8) has circular-saw-shaped teeth (28) on its circumference. By means of the conveyor roller set in rotation, shavings are pared off cubes of fat (9) and uniformly fill up the tooth gaps (27). The fat is conveyed along a cylindrical hous... | 07/24/1990 |
| 4938908 | Flexible tube of thermoplastic resin having poor melt flowability and production method and apparatus thereof Disclosed is a method and apparatus for producing a flexible tube of a thermoplastic resin having poor melt flowability by melting a thermoplastic resin having poor melt flowability in a screw extruder, and melt-extruding the molten thermoplastic resin fr... | 07/03/1990 |
| 4921414 | Extrusion apparatus for producing marbeleized thermoplastic extrusions The extrusion apparatus used to make a marbled section of a thermoplastic material is connectable to a screw press with at least one screw shaft and an extruder housing. A thermoplastic base material having one color is fed in using the screw press. A the... | 05/01/1990 |
| 4867927 | Process of producing thermplastic resin sheet and the like and molding screw therefor This invention relates to a process of producing sheets from thermoplastic resins and a screw used therefor. The resin extruder includes a cylinder and the screw. The resin is passed through a feeding section, a compressing section, a metering section, a ... | 09/19/1989 |
| 4867667 | Apparatus for producing screw feeders for a plastic injection-molding machine A system for producing a screw feeder for use in a plastic injection-molding machine, according to which system a molten material is extruded through an injection opening of a rotating die, the injection opening of the die including a groove obliquely wit... | 09/19/1989 |
| 4857250 | One-extrusion method of making a shaped crosslinkable extruded polymeric product Method of and apparatus for making a shaped crosslinked extruded polymeric product by extruding compacted, melted polymer, e.g., polyethylene, into a mixer formed on or fitted to the discharge end of an extruder, injecting proportionate amounts of a mixtu... | 08/15/1989 |
| 4856908 | Mixing head of injection molding machine A mixing head of an injection molding machine has an injection plunger for opening and closing a plurality of orifices and a spool plunger for opening and closing a plurality of circular passageways. The plunger and the spool are disposed parallel to each... | 08/15/1989 |
| 4854847 | Tortilla dough forming machine A tortilla dough forming machine has a hopper, hollow extension and hollow casing mounted in a serial arrangement on a support frame. The hopper receives a mass of tortilla dough through its open top and has a dough discharge outlet. The casing is cylindr... | 08/08/1989 |
| 4822548 | Method and apparatus for manufacturing a thread-reinforced rubber hose In the production of a thread-reinforced hose from polymeric material, the still formable material, a mold core, and the reinforcing thread or threads are fed continuously into a shear head and united. This takes place while utilizing the rotary movement ... | 04/18/1989 |
| 4802835 | Apparatus for making soap An apparatus for making soap comprising, an extruder having a helical screw for passing the soap and forming an extrudate adjacent a downstream portion of the extruder, and a device for working or kneading the extrudate to remove residual screw lines and ... | 02/07/1989 |
| 4790992 | Injection molding apparatus for making fiber-reinforced articles An injection molding apparatus for making a molding of fiber-reinforced synthetic resin which comprises a mold assembly having a molding cavity defined therein, into which a liquid molding material of synthetic resin containing reinforcing fibers is injec... | 12/13/1988 |
| 4789511 | Material processing A method of materials processing (e.g. polymer extrusion) in which the material flows along an axially extending passageway. A pressure differential is established across the passageway transverse to the axial flow direction so as to create a flow of mate... | 12/06/1988 |
| 4716000 | Process and apparatus for the production of a cross-linked, extruded or sprayed product A process and apparatus for producing a cross-linked, extruded or sprayed product.... | 12/29/1987 |
| 4711602 | Turbulent flow gate for the injection molding of tubular parts, including parisons suitable for blow molding Injection molding apparatus is disclosed in which weld lines are removed from a part, such as a parison, which weld lines are caused by the interruption or splitting of the flow of plastic material around core support pins or the like by the provision of ... | 12/08/1987 |
| 4708489 | Blending machine A blending apparatus particularly adapted for blending or mixing candy, cookies, nuts or fruit with the material of a cold flowable substance, such as ice cream, includes a blending container, a rotatable auger having a rotatable cutter displaceable into ... | 11/24/1987 |
| 4693611 | Frozen dessert mixer The present invention concerns an ice cream machine for home use. The ice cream machine of the invention having a mixing auger and a mixing cone uses a unique drive system to vertically drive the cone to engage the auger and mix the products contained wit... | 09/15/1987 |
| 4689002 | Apparatus for cold injection molding of glass fiber reinforced composite materials An apparatus for cold injection molding of glass fiber reinforced composite materials. The apparatus includes an injection unit for the composite material, a unit for the mixing of said material, the discharge orifice for the mixed material of which is co... | 08/25/1987 |
| 4681721 | Thermoplastic film extrusion process employing die with filtering arrangement An annular extrusion die for the production of a tubular thermoplastic film web material, such as an annular extrusion die including a filtering arrangement for the formulation of a more consistently or uniformly distributed polymer melt conveyed to the d... | 07/21/1987 |
| 4680003 | Apparatus for the production of moldings from flowable reactive components Apparatus for producing moldings from flowable reactive components comprising (a) a mold assembly having two halves surrounding a mold cavity, (b) a mixing device for combining said reactive components mounted on said mold assembly, said mixing device having a... | 07/14/1987 |
| 4680132 | Processing detergent bars with a cavity transfer mixer to reduce grittiness Grittiness in soap-containing formulations, one source of which is the reworking of previously processed soap, is reduced in an efficient manner by passing the formulation through a cavity transfer mixer.... | 07/14/1987 |
| 4671761 | Apparatus for producing reinforced elongate bodies A shear head in which an extruded vulcanizable composition meets preheated reinforcing strands has a compartment adjacent a mouth of the head which is evacuated to reduce the danger of gases affecting adhesion of the strands to the composition.... | 06/09/1987 |
