| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 366079000 | Stirrer is through-pass screw conveyor | 56 |
| 20090027994 | Mixing and kneading machine and method of implementing continual compounding - A mixing and kneading machine ( | 01-29-2009 |
| 20100110823 | Combined Screw Design and Heating Mechanism for Low Shear Resins - The apparatus and method that best results in low shear to melt shear-sensitive materials, such as polyethylene terephthalate, polyvinylchloride, acrylonitrile butadiene styrene, acrylics and/or resins with fiber fillers, without sacrificing process speed and/or cycle time, comprises the use of a barrel, screw and induction heating coil. The screw, in this case, preferably includes a low volumetric compression ratio, a relatively short feed section, an extended transition section, and a typical metering section. | 05-06-2010 |
| 20100271901 | KNEADING DEGREE ADJUSTING MECHANISM, EXTRUDER, CONTINUOUS MIXER, KNEADING DEGREE ADJUSTING METHOD, AND KNEADING METHOD - The degree of kneading of a material to be kneaded is to be capable of being adjusted with a high accuracy. | 10-28-2010 |
| 20110063939 | BARREL COOLING AND HEATING SYSTEM FOR SCREW EXTRUDER - An extruder barrel section is disclosed. The extruder barrel section comprises of a first barrel pad and a second barrel pad. The first and second barrel pad co-operating to define a recess configured to receive an extruder liner. The length of the first and second barrel pad is less than the length of the extruder liner such that the extruder liner defines an end surface that projects beyond the extruder barrel section on at least one side. The end surface is configured to abut the end surface of another extruder liner. The extruder barrel section further comprises of a locking structure configured to lock the first barrel pad to the second barrel pad with the extruder liner therebetween. | 03-17-2011 |
| 20110317510 | RESTORATION OF WORN METALLIC EXTRUSION PROCESSING ELEMENTS - A restored metallic extrusion processing element comprises a tubular metal core around which is consolidated a powdered metal extrusion component that includes metallurgically bonded interior shell and exterior working portions. The interior shell portion covers the core and is characterized by a first multiple-crystalline microstructure, and the exterior working portion is characterized by a second multiple crystalline microstructure of densified powdered metal particles. The exterior working portion has an outside surface including outer working surface features that extend along the length of the extrusion processing element. A bond interface of metallurgical type defines a crystalline microstructure boundary between the first and second multiple-crystalline microstructures. | 12-29-2011 |
| 20130010566 | KNEADING APPARATUS AND METHOD FOR PRODUCING SEMICONDUCTOR ENCAPSULATING RESIN COMPOSITION - The kneading apparatus | 01-10-2013 |
| 20130163369 | KNEADING APPARATUS AND METHOD FOR PRODUCING THERMOPLASTIC RESIN MOLDED PRODUCT - A kneading apparatus includes a plasticizing cylinder in which a high pressure kneading zone and a pressure reduction zone are formed adjacently in this order from an upstream side so that a molten resin obtained by plasticizing a thermoplastic resin and a pressurized fluid are kneaded with each other in the high pressure kneading zone, and gasified pressurized fluid, which is gasified by reducing a resin internal pressure, is separated in the pressure reduction zone from the molten resin kneaded with the pressurized fluid, a screw which is arranged rotatably and movably back and forth in the plasticizing cylinder; and a downstream side seal mechanism which is provided between the high pressure kneading zone and the pressure reduction zone and which makes communication and disconnection between the high pressure kneading zone and the pressure reduction zone in accordance with a rotation state of the screw. | 06-27-2013 |
| 20160039116 | KNEADING APPARATUS, METHOD FOR PRODUCING THERMOPLASTIC RESIN MOLDED PRODUCT, AND FOAM INJECTION MOLDING METHOD - A kneading apparatus for a thermoplastic resin, includes: a plasticizing cylinder which has a high pressure kneading zone and a pressure reduction zone; a screw in the plasticizing cylinder; a downstream side seal mechanism which shuts off communication between the high pressure kneading zone and the pressure reduction zone; and a pressure reduction zone pressure adjusting mechanism which is connected to the pressure reduction zone and which controls a pressure of the pressure reduction zone so that the pressure is not less than an atmospheric pressure and the pressure is not more than a maximum pressure of the high pressure kneading zone that is achieved when kneading a molten resin with a pressurized fluid, when the downstream side seal mechanism shuts off the communication between the high pressure kneading zone and the pressure reduction zone. | 02-11-2016 |
| 366080000 | With deflector | 1 |
| 20090097350 | Kneader - One object of the present invention is to provide a kneader which can diminish wear of screws and a barrel while preventing the manufacturing process for the screws and barrel from becoming complicated. In this kneader, a pair of screws are rotated about respective axes thereof to knead a material to be kneaded which is introduced into a kneading space formed within a barrel. Each screw has such a shape generating deflection in a predetermined direction perpendicular to an arranged direction of the axes of the pair of screws during kneading of the material to be kneaded, and the kneading space has a shape such that a pair of accommodating spaces which accommodate each of the screws respectively are connected together so as to overlap each other partially in the radial direction, each accommodating space being formed in such a manner that the diameter thereof in the predetermined direction in which there occurs deflection of each screw is larger than in any other direction. | 04-16-2009 |
| 366081000 | With additional stirrer element on screw conveyor | 7 |
| 20100238759 | DEVICE AND METHOD FOR PROCESSING OF POLYMER MATERIALS - A device for processing a polymer material including a first screw having a first length; and a second screw having a second length different from the first length, wherein the first screw is configured to be rotated at one of a direction and a speed of rotation that is independent from a respective speed or rotation of the second screw. | 09-23-2010 |
| 20110222363 | LUG TYPE EXTRUDER SCREW - An extruder screw that enables mixing of viscous materials, such as rubber mixtures and thermoplastic materials, is disclosed. The screw includes a core extending from a sealing end to a nose cone end. At least one flight extends radially from the core in a quasi-helical pattern, wherein flights adjacent one another form channels therebetween. A plurality of elongate lugs extend radially from the core and are disposed in the channels. The shape as well as the number of lugs can be varied to ensure the requirements for a thorough and turbulent deflection and mixing of the material stream. | 09-15-2011 |
| 20120195155 | KNEADING SEGMENT AND KNEADING EQUIPMENT - A kneading segment includes plural wing portions integrally formed along an axis such that angles, around the axis, of the plural wing portions are shifted. At a part of a leading end of each wing portion where a wing leading end surface and a wing surface connect with each other, a first flow surface facilitates flow of material between the wing leading end surface and the wing surface. At a part of a base end of each wing portion where a wing surface and a wing side surface of another wing portion adjacent to each wing portion connect with each other, a second flow surface facilitates flow of material between the wing surface and the wing side surface. Since such a configuration prevents material from staying between parallel kneading segments, impurities are prevented and will not mix into normally kneaded material. | 08-02-2012 |
| 20140098626 | MATERIAL KNEADING APPARATUS AND MATERIAL KNEADING METHOD - There is provided with a screw that is inserted into a cylinder an inside of which a material is loaded, and is rotatably supported in both end portions on an upstream side and a downstream side, or in an end portion on the upstream side, in the cylinder; a first kneading blade including a plurality of first blades that are helically provided on the screw and send the material toward the downstream side with rotation of the screw; and a second kneading blade including a second blade that is helically provided on the screw and returns the material, which is sent toward the downstream side by the first kneading blade, toward the upstream side, the number of blades in the second blade being smaller than the number of blades in the first blade. | 04-10-2014 |
| 366082000 | Ring or disk | 3 |
| 20090213683 | KNEADING DISC SEGMENT AND TWIN-SCREW EXTRUDER - The kneading disc segment according to the present invention comprises plural disc sets each comprising two kneading discs and mounted on a kneading screw ( | 08-27-2009 |
| 20110007598 | Screw Machine - In a screw machine, to extend the material to be prepared with the latter, at least one processing element is configured as an extension-kneading element, the crest region of which has a reduced thickness compared to a flank region and, with adjacent processing elements, forms an extension channel for the material in the region between the triangles, which tapers in cross section in the flow direction of the material. Because of the tapering of the extension channel, the material is accelerated in the flow direction thereof and extended, so that high-molecular particles in the material are divided and the latter is therefore homogenized. | 01-13-2011 |
| 20110063940 | METHOD OF EXTRUDER OPERATION - An extruder capable of improved mixing is disclosed. The extruder comprises of a housing having at least two cylindrical housing bores, each housing bore having an axis disposed parallel to the other axis. The extruder further comprises of at least a first screw shaft and a second screw shaft being disposed in the first and second housing bores. The first and second screw shaft being provided with extruder processing elements that defines a mixing zone. The first and second screw each having extruder D and a screw root diameter d. The first and second screw shaft each having a volumetric ratio of at least 1.4 wherein the volumetric ratio is defined by the extruder diameter D divided by the screw inner diameter d. | 03-17-2011 |
| 366083000 | Plural screw conveyors on separate shafts | 31 |
| 20080198687 | Extruder - An extruder for viscous masses, and including an extruder screw and a positive-displacement gear pump disposed downstream of the extruder screw as viewed in the conveying direction. The positive-displacement gear pump has at least one conveying gear and at least one positive-displacement gear. The axis of the conveying gear is disposed essentially at right angles to the axis of the extruder screw, and the axis of the positive-displacement gear is disposed essentially in the same direction as the axis of the extruder screw. | 08-21-2008 |
| 20090175117 | Conveying screw member for plastic granule cutting and transporting mechanism - A conveying screw member for a plastic granule cutting and transporting mechanism includes a plastic granule collector, a heating conduit, a conveying screw, a plastic granule molding structure and a power transmission device. The plastic granule collector is a hollow cylinder which has an outlet being positioned thereon. The heating conduit is a longitudinal hollow tube which has a round hole being respectively positioned at both ends. The conveying screw member which has the conveying screw being set thereon, and the reversing screws and two supporting bases being respectively set at both ends is installed in the heating conduit. The plastic granule molding structure is equipped near the edge of the end of the heating conduit. The power transmission device is installed near the plastic granule collector and attached to the supporting base of one end of the conveying screw member. | 07-09-2009 |
| 20100296360 | MELTING KNEADING DEVOLATILIZING EXTRUDER - There is provided a melting kneading devolatilizing extruder in which the surface renewability of a molten raw material is improved. | 11-25-2010 |
| 20110051545 | Multi-screw extruder - There is provided a multi-screw extruder for reclaiming foam made of cross-linked polymer material into reusable material by causing the foam to pass through a kneading zone, wherein the kneading zone is divided into at least preceding and subsequent two kneading zones and a temperature equalizing transfer zone for equalizing temperature of the material passing through the zone is provided between the preceding kneading zone and the subsequent kneading zone. | 03-03-2011 |
| 20130033956 | SCREW FEED ELEMENTS FOR EXTRUDING VISCOELASTIC MASSES - The invention relates to novel screw feed elements for multi-shaft screw feed machines having screw feed profiles rotating in the same direction in pairs and precisely abrading in pairs, to the use of the screw elements in multi-shaft screw feeding machines and to a method for extrusion of viscoelastic masses. | 02-07-2013 |
| 20140050042 | DOUBLE SCREW EXTRUDER - What is described is a twin screw extruder having two extruder screws ( | 02-20-2014 |
| 20150131399 | SYSTEMS AND METHODS OF REGULATING TEMPERATURE OF A SOLID-STATE SHEAR PULVERIZATION OR SOLID-STATE MELT EXTRUSION DEVICE - Systems and methods for controlling the temperature of a solid-state screw extruder may include providing an extrusion screw that incorporates one or more screw shaft channels. The shaft channels may be configured to conduct a flow of a heat conducting medium along a length of the shaft. The shaft channels may be incorporated into an exterior surface or within the body of the screw shaft. The extruder may include extrusion screw elements in mechanical communication with the shaft. Each of the elements may further include one or more element channels also configured to conduct a flow of the medium. The shaft channels and the element channels may be disposed to permit a flow of the medium therebetween. The temperature of the extrusion screws and/or screw elements may be controlled by circulating the medium from a source, through the shaft and element channels, and back to the source. | 05-14-2015 |
| 20160052171 | TWIN-SCREW EXTRUDING KNEADER AND METHOD FOR PRODUCING ELECTRODE MIXTURE USING THE SAME - Provided is a technology capable of producing a paste with desired viscosity. A twin-screw extruding kneader includes: a housing; two rotational shafts arranged inside the housing; and paddles arranged around each rotational shaft. A paddle length L | 02-25-2016 |
| 20160089814 | EXTRUDER SCREW - A double-screw extruder for thermoplastic materials, with a first and a second extruder screw, whereby the extruder screws have an inlet and an outlet and a core, helically extending screw flights being arranged through the core from the inlet to the outlet, so that the screw peaks and valleys are circumferential, and the peaks of the first screw penetrate into the valleys of the second screw, and vice versa. The screw flights may have a geometry which is step-shaped in cross section, whereby the steps may be provided such that the stepped course of the peaks is congruent with the stepped course of the valleys. | 03-31-2016 |
| 20160185026 | METHOD FOR PRODUCING A TWIN SCREW CYLINDER PROVIDED WITH A WEAR-PROTECTIVE LAYER - A method for producing a twin screw cylinder provided with or having a wear-resistant coating, in which two bores, which extend essentially parallel to each other and overlap each other, are produced in a cylinder and then two liners are inserted into the bores, the liners having an essentially C-shaped cross-section, continuing from each other in the overlapping region of the bores, forming the inner surface of the bores, and serving as a wear-resistant coating. First, a tubular liner is inserted into a first bore and then is cut to form the C-shaped cross-section in accordance with the diameter of the other bore and after this, a second tubular liner is inserted into the second bore and then is cut to form the C-shaped cross-section in accordance with the diameter of the inner surface in the first bore formed by the first liner. | 06-30-2016 |
| 366084000 | In parallel intercommunicating mixing chambers | 21 |
| 20090274003 | Extruder - In an extruder wherein the slip-on elements ( | 11-05-2009 |
| 20100296361 | EXTRUSION OF POLYURETHANE COMPOSITE MATERIALS - Methods of extruding polyurethane composite materials are described. One method includes introducing at least one polyol and inorganic filler to a first conveying section of the extruder, transferring the at least one polyol and inorganic filler to a first mixing section of an extruder, mixing the at least one polyol and the inorganic filler in the first mixing section, transferring the mixed at least one polyol and inorganic filler to a second conveying section of the extruder, introducing a di- or poly-isocyanate to the second conveying section, transferring the mixed at least one polyol and inorganic filler and the di- or poly-isocyanate to a second mixing section, mixing the mixed at least one polyol and inorganic filler with the di- or poly-isocyanate in the second mixing section of the extruder to provide a composite mixture, and transferring the composite mixture to an output end of the extruder. Other related methods are also described. | 11-25-2010 |
| 20110096617 | Screw Elements for Extruding Plastic Compositions - The invention relates to novel screw elements for multi-screw extruders with screw profiles co-rotating in pairs and being fully self-wiping in pairs, to the use of the screw elements in multi-screw extruders and to a process for extruding plastic compositions. | 04-28-2011 |
| 20110128812 | MULTIPLE-SCREW EXTRUDER - An improved multiple-screw extruder, in particular a twin-screw extruder comprises a housing. Several housing bores are located in at least one section within the housing. The housing bores overlap at least along a partial axial length of the housing. One extruder screw is arranged in each of the several housing bores. At least two motors are provided for the at least two extruder screws. A synchronizing and torsion transmitting device, by means of which both cooperating extruder screws can be synchronized, is provided on both the inlet side and the discharge side. | 06-02-2011 |
| 20130107657 | REMELTING TYPE THREAD ELEMENT FOR PARALLEL DUAL-SCREW EXTRUDER AND MANUFACTURING METHOD THEREOF | 05-02-2013 |
| 20150131400 | KNEADING MACHINE - A two-shaft continuous kneading machine is disclosed wherein airtightness in a housing is assured by a simple means without using a mechanical seal. A magnetic coupling mechanism is formed between the mechanism in the housing ( | 05-14-2015 |
| 20150298079 | KNEADING DEVICE FITTED WITH A SHAFT RETENTION DEVICE - A paste kneading device includes an oblong barrel, two shafts arranged parallel within the barrel, being held and driven at their first ends, defining an upstream end, by a drive device, two screws each formed by threads carried by the shafts, each screw having a transport section carrying a main thread to cause the paste to advance along the two screws, and an outlet orifice formed in the wall of the barrel to discharge the kneaded paste, the kneading device further including a holder device to hold each shaft at its second end, defining a downstream end, and enabling the shaft to rotate freely, the holder device including, for each shaft, a first portion secured to the shaft and a second portion secured to a cap end portion of the barrel, the cap end portion being removable and the first and second portions being configured to engage and disengage freely. | 10-22-2015 |
| 366085000 | Screw conveyors intermeshing | 13 |
| 20080267003 | EXTRUSION METHOD AND APPARATUS - An extrusion apparatus including a mixing chamber comprising two intersecting housing bores and an inlet positioned to receive material into the mixing chamber. Two screw shafts are supported for rotation about respective generally parallel axes and include respective screw sections positioned for co-wiping intermeshing rotation within the respective housing bores of the mixing chamber. The apparatus supports screw shaft rotational speeds greater than approximately 800 rpm and includes screw shaft conveying portions that are rotatably cantilevered for self-journaled support within respective separate conveying chambers arranged generally parallel to one another downstream of the mixing chamber. | 10-30-2008 |
| 20090040863 | Extruder - In the case of an extruder with at least two parallel, rotating shafts turning in the same direction, the shafts are equipped with interlocking feed screw segments ( | 02-12-2009 |
| 20090086568 | CONTINUOUS BI-METALLIC TWIN BORE BARREL FOR SCREW EXTRUDER AND METHOD OF MAKING SAME - A continuous bi-metallic twin bore barrel is produced by forming first and second single bore barrels, centrifugally lining the bores of the single bore barrels with a bi-metallic liner, heating the single bore barrels to harden the linings, fastening each single bore barrel into a barrel machining jig, and cutting each single bore barrel along its length to expose its bore. The barrel machining jigs are fastened together such that two single bore barrels are positioned adjacent and in contact with one another and their bores are in communication with one another. The two single bore barrels are seal welded together to form a twin bore barrel. The twin bore barrel is removed from the jigs and clamped along its length. | 04-02-2009 |
| 20090175118 | Extrusion method and apparatus - An extrusion apparatus including a mixing chamber comprising two intersecting housing bores and an inlet positioned to receive material into the mixing chamber. Two screw shafts are supported for rotation about respective generally parallel axes and include respective screw sections positioned for co-wiping intermeshing rotation within the respective housing bores of the mixing chamber. The apparatus supports screw shaft rotational speeds greater than approximately 800 rpm and includes screw shaft conveying portions that are rotatably cantilevered for self-journaled support within respective separate conveying chambers arranged generally parallel to one another downstream of the mixing chamber. | 07-09-2009 |
| 20100067320 | MULTI-SHAFT EXTRUDER - A multi-shaft extruder has between an exterior housing ( | 03-18-2010 |
| 20100091603 | KNEADING SCREW, TWIN SCREW EXTRUDER, AND METHOD FOR ASSEMBLING KNEADING SCREW - To provide a kneading screw which can reduce such a phenomenon that a disproportional load is imposed onto a shaft of the kneading screw without degrading kneading performance of the kneading screw, a twin screw extruder with the kneading screw, and a method for assembling the kneading screw. In the kneading screw, each of the kneading rotor segments has at least one of a spiral kneading blade or a kneading blade extending in parallel with the axial direction, and is incorporated in the kneading screw such that top blade portions of the kneading blades at the adjacent ends of the kneading rotor segments adjacent to each other in the axial direction of the kneading screw are shifted in phase to each other, and such that the top blade portions of the kneading blades at the respective central positions in the axial direction of the adjacent kneading rotor segments are shifted larger in phase than the case where the top blade portions of the adjacent ends of the adjacent kneading rotor segments are equal in phase to each other. | 04-15-2010 |
| 20100284237 | KNEADING APPARATUS - A plurality of paddles Pn (n=1 to 17) is provided on an external periphery of a rotary shaft | 11-11-2010 |
| 20120182823 | TREATMENT ELEMENT FOR TREATING MATERIAL IN A MULTI-SHAFT WORM MACHINE AND MULTI-SHAFT WORM MACHINE - A treatment element to treat material in a multi-shaft worm machine has an outer contour with at least one outer contour portion, the associated evolute of which is a quantity of at least three points, each of the points lying outside the longitudinal axis and within the outer radius of the treatment element and two respective adjacent points having a spacing from one another, which is less than half the core radius. The treatment element ensures high flexibility during the adjustment of shear and/or extensional flows on the material to be treated. | 07-19-2012 |
| 20120188840 | EXTRUDER - An extruder is provided that has a housing with at least two axially parallel shafts which are capable of being driven in the same direction and with at least two-flight intermeshing conveying elements stripping each other at an axial distance (Ax) with a small clearance over the entire circumference. The extruder has a distance between the comb of the at least one further flight and the inner wall of the housing. Each conveying element has at least two conveying sections rotated through an angle, wherein each conveying section has an axial length corresponding to at most the outer diameter of the conveying element. | 07-26-2012 |
| 20120320702 | TREATMENT ELEMENT FOR TREATING MATERIAL IN A MULTI-SHAFT WORM MACHINE AND MULTI-SHAFT WORM MACHINE - A treatment element to treat material in a multi-shaft worm machine has an outer contour with at least one outer contour portion, the associated evolute of which is a quantity of at least three points, each of the points lying outside the longitudinal axis and within the outer radius of the treatment element and two respective adjacent points having a spacing from one another, which is less than half the core radius. The treatment element ensures high flexibility during the adjustment of shear and/or extensional flows on the material to be treated. | 12-20-2012 |
| 20140036614 | EXTRUDER MIXING ELEMENT - A dispersive mixing element for co-rotating twin screw extruder is disclosed. The element for co-rotating twin screw extruder comprises of a continuous flight helically formed thereon having a lead ‘L’, wherein either the flight transforms at least once from an integer lobe flight into a non-integer lobe flight in a fraction of the lead ‘L’ and transforms back to an integer lobe flight in a fraction of the lead ‘L’ or the flight transforms at least once from a non-integer lobe flight into an integer lobe flight in a fraction of the lead ‘L’ and transforms back to a non-integer lobe flight in a fraction of the lead ‘L’. | 02-06-2014 |
| 20150029812 | SCREW PAIR AND CO-ROTATING INTERMESHING TWIN-SCREW EXTRUDER PROVIDED WITH SCREW PAIR - A screw pair includes first and second screws having an outer circumferential surface on which a groove is spirally formed, and transports a raw material in a first direction along each of axis centers. An inner surface of the groove of each of the screws includes a first surface, which faces in the first direction, and in which the outer circumferential surfaces of the screws are formed to coincide with each other without a gap therebetween in the state where the screws mesh with each other, and a second surface, which faces in a second direction opposite to the first direction, and which forms a gap between the outer circumferential surfaces of the screws in the state where the screws mesh with each other. | 01-29-2015 |
| 20150138909 | MULTI-SHAFT EXTRUDER - In a multi-shaft extruder for the processing of free-flowing material having a barrel and a plurality of co-rotating, tightly intermeshing conveyor shafts ( | 05-21-2015 |
| 366086000 | Intercommunication by conduit | 1 |
| 20110110178 | MULTI-SCREW EXTRUDER DEVICE FOR THE PRODUCTION OF ELASTOMERIC COMPOUNDS - A multiscrew extruder device for production of elastomeric compounds is intended for manufacturing tyres for vehicle wheels. The device includes a holding body; a mandrel inserted in the holding body extending along a longitudinal axis and delimiting an annular chamber with the holding body; and a plurality of extrusion screws disposed in the annular chamber and parallel to the longitudinal axis. A first circuit for a heat-exchange fluid for temperature control is formed in the mandrel and includes a central channel extending in the mandrel along the longitudinal axis and a plurality of parallel peripheral channels extending in a peripheral portion of the mandrel close to the annular chamber and in fluid communication with the central channel. | 05-12-2011 |
| 366088000 | Including sections of different pitch | 3 |
| 20120300572 | PLASTICATING SCREW - A plastication screw ( | 11-29-2012 |
| 20150085597 | SINGLE-SCREW EXTRUDER WITH GROOVED INFEED SYSTEM - A single-screw extruder includes a grooved infeed system, a cylinder, and an extruder screw rotatably supported in the cylinder. The extruder screw has a softening zone, a main plasticizing zone, and a post-plasticizing zone and is at least double-threaded in the area of the main plasticizing zone. The cylinder at least partially has at least one groove extending substantially in the longitudinal direction in the region of the main plasticizing zone. | 03-26-2015 |
| 20150367298 | METHOD AND APPARATUS FOR EXTRUSION PROCESSING OF HIGH FIBER CONTENT FOODS - An extruder ( | 12-24-2015 |
| 366089000 | Varying diameter of shaft | 3 |
| 20100309745 | KNEADING DEGREE ADJUSTING APPARATUS, EXTRUDER AND CONTINUOUS KNEADER - Provided is a kneading degree adjusting apparatus, which can have a wide adjusting range for a kneading degree even if a gate member and a cylindrical segment are not made so close as to invite a fear of metallic contacts. The kneading degree adjusting apparatus is disposed in a kneading treatment equipment, which includes a cylindrical segment formed at a predetermined portion and a kneading screw for kneading a material while feeding the same to the downstream side, thereby to adjust the kneading degree of the material. The kneading degree adjusting apparatus comprises a gate member having an opposed face confronting the outer circumference of the cylindrical segment and moved toward and away from the outer circumference of the cylindrical segment thereby to change the area of the material passage to be formed between the opposed face and the outer circumference of the cylindrical segment. The outer circumference and the opposed face are corrugated to form the passage into a bent shape. | 12-09-2010 |
| 20110069576 | Barrel Alignment in Extruder Systems - A barrel alignment structure for a pair of barrel sections each defining an end surface configured to abut each other is disclosed. The barrel alignment structure comprises of a plurality of alignment pins distributed on the end surface of the first barrel section. The barrel alignment structure further comprises of a corresponding number of slots defined on the end surface of the second barrel section, each slot configured to receive one alignment pin, wherein the slot has a width substantially equal to that of the alignment pin and a length larger than the width of the alignment pin permitting relative thermal expansion between the pair of barrel sections. An extruder barrel section is also disclosed. The extruder barrel section defining an end surface configured to abut the end surface of another extruder barrel section. The extruder barrel section comprises of a plurality of alignment pins distributed on its end surface. Each alignment pin configured to be received by a corresponding slot defined on the end surface of the extruder barrel section abutting it, wherein the slot has a width substantially equal to that of the alignment pin and a length larger than the width of the alignment pin permitting relative thermal expansion between the pair of barrel sections. | 03-24-2011 |
| 20120263008 | EXTRUDER WITH FEED-BACK MEANS - Extruders for processing material have a selectively variable extruder volume. The extruders include an extruder barrel containing a bore sized to process 5 to 50 grams of material, wherein the bore has an upstream inlet portion for feeding the material to be processed and a downstream outlet portion connectable to an extruder exit for material processed through the extruder, and at least two recycle channels which differ from one another in at least one of volume, area of cross-section and length. A diverter valve of a flow control system is positioned at the outlet of the extruder for controllably directing material flow from the bore to either the extruder exit or at least one of at least two recycle channels | 10-18-2012 |
| 366090000 | Notched, apertured, or interrupted thread | 3 |
| 20110158034 | SINGLE SCREW EXTRUDER - The invention relates to a single-screw extruder comprising a cylinder ( | 06-30-2011 |
| 20140119153 | EXTRUDER SCREW WITH CHANNEL - An extruder apparatus is disclosed and which includes a cylindrical barrel having a feed end and a discharge end, the feed end having an outlet in fluid communication with a feed box. The extruder screw is mounted in the cylindrical barrel, and the screw has an outer surface having one or more helical flights mounted thereon. The screw has a discharge end and a terminal end, wherein the screw further comprising a notch at the terminal end. | 05-01-2014 |
| 20150298356 | MIXING SECTION FOR A PLASTIC EXTRUSION SCREW - An mixing section for an extrusion screw has an inlet end and an outlet end as well as alternating wiping lands and barrier lands. The wiping lands have a greater helix angle than the barrier lands. The wiping lands and the barrier lands define inlet channels which narrow toward the outlet end and outlet channels which widen toward the outlet end. A helical pattern of mixing channels is cut into the wiping lands and the barrier lands. The mixing channels may be oriented generally at approximately right angles to the wiping lands and the barrier lands. A portion of the extrudate encounters the inside wall surfaces of the mixing channels and changes direction which improves the mixing of the extrudate. | 10-22-2015 |
