Plural Distinct Feed Inlets Patents (Class 425/462)
  • Patent number: 11731335
    Abstract: A multi-component extrusion die head for producing a composite tube comprises an extrusion nozzle, a main die head, and a melt flow distributor device. The main die head is configured to supply the extrusion nozzle with a first melt flow and a second melt flow, which are guided separately from one anther in the extrusion nozzle away from the main die head and toward a nozzle outlet of the extrusion nozzle. The melt flow distributor device is arranged in the extrusion nozzle outside of the main die head and is configured to split the first melt flow in a peripheral direction thereof, and to supply the second melt flow to the first melt flow such that at least one section of the second melt flow is arranged within the first melt flow in the peripheral direction.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: August 22, 2023
    Inventor: Hubert Rausch
  • Patent number: 11117083
    Abstract: A method to form a laminar integral skin of a honeycomb structure is provided. The method includes extruding a ceramic precursor batch through a die with feedholes in entry side and slots in exit face of the die to form the honeycomb structure. In a region on the periphery of the die configured to form the cell matrix, a series of concentric slots around the matrix in the exit face of the die are configured to feed skin onto the matrix. Ring sections between concentric slots are angled away from the center and a mask is disposed on top of the periphery producing a channel for extruded skin to meet and bond to extruded matrix. Optionally, slots in the skin-forming ring sections enhance knitting between laminar skin layers. The die and honeycomb body having uniform integral skin are also provided.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: September 14, 2021
    Assignee: Corning Incorporated
    Inventors: Douglas Munroe Beall, Dana Craig Bookbinder, Thomas William Brew, Kenneth Richard Miller
  • Patent number: 10786967
    Abstract: The disclosed embodiments relate to extrusion systems and involves a method to promote self-balancing of flow velocity while enhancing the strength of the end product by off-setting seams. This invention focuses on using a system of more than one deflector to produce multiple rings which are then quickly merged to produce a more quickly balanced ring.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: September 29, 2020
    Assignee: Guill Tool & Engineering Co., Inc.
    Inventors: Richard Guillemette, Robert Peters
  • Patent number: 10406773
    Abstract: The disclosed embodiments relate to extrusion systems and involves a method to promote self-balancing of flow velocity while enhancing the strength of the end product by off-setting seams. This invention focuses on using a system of more than one deflector to produce multiple rings which are then quickly merged to produce a more quickly balanced ring.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: September 10, 2019
    Inventors: Richard Guillemette, Robert Peters
  • Publication number: 20150132428
    Abstract: A composite spinneret for discharging a composite polymer stream consisting of at least two or more component polymers, which includes a metering plate having multiple metering holes for metering respective component polymers, a distribution plate with multiple distribution holes formed in the distribution grooves for joining the polymer streams discharged from the metering holes, and a discharge plate.
    Type: Application
    Filed: January 20, 2015
    Publication date: May 14, 2015
    Inventors: Masato Masuda, Akira Kishiro, Joji Funakoshi, Yoshitsugu Funatsu, Seiji Mizukami
  • Patent number: 8968860
    Abstract: There is provided a laminated sheet producing apparatus that adds an edge material to at least one of the end portions in the width direction of a laminate in which a plurality of kinds of sheet materials are laminated as an edge portion at a confluence portion, wherein when an area of each region resulting from division of a cross-sectional configuration of the edge material perpendicular to the flow channel direction of each flow channel at the confluence portion by lines for dividing the configuration into 10 equal portions in the lamination direction is defined as Sn (n=1, 2, 3, 4, 5) in the direction from a central portion in the lamination direction toward an end portion in the lamination direction, the relationships of Formulae (1) S1?S2?S3?S4?S5 and (2) S1<S5 are simultaneously satisfied.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: March 3, 2015
    Assignee: Toray Industries, Inc.
    Inventors: Takeshi Inomoto, Fumiyasu Nomura, Yoshiharu Furuno
  • Patent number: 8944798
    Abstract: A gas assisted co-extrusion apparatus includes a co-extrusion die in communication with an extruder. A nozzle that is defined by a bore in the co-extrusion die extends about a nozzle axis to a nozzle exit of the co-extrusion die. An injector extends through the bore of the co-extrusion die along the nozzle axis. The injector and nozzle together form a dough into a rope that is tubular with a wall portion and an inner cavity surrounded by the wall portion as the dough is extruded out of the nozzle exit and about the injector. A compressed gas source provides a compressed gas out of an injector outlet and into the inner cavity of the rope to radially stretch the wall portion of the rope as the rope is dispersed from the injector. The co-extrusion die is spaced from the extruder to define a void therebetween. A delivery system delivers an entrainable material to the compressed gas in a pipe. The pipe is connected to an injector inlet of the injector in the void.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: February 3, 2015
    Assignee: Kellogg Company
    Inventors: Norbert Gimmler, Helbert David Almeida Dominguez, Charles Bernath, Charles A. Smith, Penny Engle
  • Publication number: 20150017387
    Abstract: Disclosed therein are an extrusion die for synthetic wood which can provide a natural wood pattern similar with real wood by forming various wood patterns on the surface of synthetic wood manufactured through extrusion molding, manufacturing apparatus and method using the same, and synthetic wood manufactured by the same. The extrusion die includes: a pair of molds respectively having rectangular extrusion holes for allowing extrudates forming an inner layer to pass through the extrusion holes; and surface layer forming parts having flow paths which are oppositely formed on contact faces of the molds in such a way as to keep a predetermined gap and formed in a top and bottom asymmetrical manner for injecting other extrudates supplied, the surface layer forming parts serving to form a surface layer having different wood patterns on the outer circumference of the inner layer.
    Type: Application
    Filed: February 28, 2013
    Publication date: January 15, 2015
    Inventors: Jong Sung Park, Jung Il Son
  • Patent number: 8899953
    Abstract: An extrusion die head for the extrusion of hollow or center-filled shapes as well as apparatus comprising the extrusion die head and methods employing the die head. The extrusion die head (10) is for the preparation of a plurality of center-filled products (34) of varying composition wherein each product comprises a first (filling) material and a second (outer) material. The die head comprises at least one tube (22) such that a first material may be extruded through the tube or tubes and a second material may be extruded around the tube or tubes. The location and the number of the tubes may be customized to vary the location and amount of the first material relative to the second material and thereby vary the composition of the center-filled product. The extrusion die head apparatus comprises a sleeve (40) enclosing the die head. In one embodiment a first material is conveyed from one or more first apertures (18) via one or more tubes (22) to one or more second apertures (20) where it is extruded.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: December 2, 2014
    Assignee: Cadbury UK Limited
    Inventor: Andrew Bufton
  • Patent number: 8894398
    Abstract: A modular plastic extrusion apparatus has several component parts. The design of the integration of those parts into a modular extrusion system is unique. Said design allows for rapid assembly, testing, disassembly and placement into production of extruded plastics. This modular plastic extrusion apparatus has several components with replaceable counterparts that, after one product line of a particular color has been extruded by the apparatus, enable the component parts used to produce the particular color extrusion to be removed from the apparatus and replaced with their clean counterparts to continue producing an extrusion product line of a different color while the removed components are cleaned off line.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: November 25, 2014
    Assignee: Apex Business Holdings, L.P.
    Inventors: Mark K. Donohoo, Terry B. McGregor, Michael L. Walker, Michael A. Meredith, Steven W. Spahn, Jeffery H. West
  • Patent number: 8882487
    Abstract: An extrusion head configured for at least one extruder includes a flow channel a finishing die; and an opening in operative communication with the flow channel, wherein the opening is configured to at least partially accommodate a screw shaft of an additional extruder.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: November 11, 2014
    Assignee: Troester GmbH & Co. KG
    Inventor: Wieland Hoffmann
  • Patent number: 8840389
    Abstract: An extrusion device, in particular for plastic materials comprising: an extrusion head (2) having a nozzle (2a) for ejection of at least one plastic material (M1, M2); a first duct (5) formed in said head (2) for feeding a first plastic material (M1) to said ejection nozzle (2a); a second duct (?) formed in said head (2) for feeding a second plastic material (M2) to said ejection nozzle (2a); and a selection element (8), disposed in the vicinity of said ejection nozzle (2a) and able to be switched between a first operating condition at which it closes the second duct (6) to enable feeding of the first plastic material (M1) through the first duct (5), and a second operating condition at which it closes the first duct (5) to enable feeding of the second plastic material (M2) through the second duct (6).
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: September 23, 2014
    Assignee: Gimac di Maccagnan Giorgio
    Inventor: Giorgio MacCagnan
  • Patent number: 8801417
    Abstract: Provided is a sheet forming die capable of finely controlling the flow rates of the respective divided flows of a molten resin with precision. The sheet forming die is a sheet forming die 3 configured to: receive a first molten resin B; to receive a second molten resin A; and to thus form a sheet-shaped resin-made product by discharging the molten resins A, B from a lip gap 15.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: August 12, 2014
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Kenji Nozawa, Masatsugu Tamura
  • Publication number: 20140220328
    Abstract: Netting (1101) comprising an array of polymeric strands (1102,1104), wherein the polymeric strands are periodically joined together at bond regions throughout the array, and wherein at least a plurality (i.e., at least two) of the polymeric strands have a core (1114) of a first polymeric material and a sheath (1103) of a second, different polymeric material. Nettings described herein have a variety of uses, including wound care, tapes, filtration, absorbent articles, pest control articles, geotextile applications, water/vapor management in clothing, reinforcement for nonwoven articles, self bulking articles, floor coverings, grip supports, athletic articles, and pattern coated adhesives.
    Type: Application
    Filed: August 14, 2012
    Publication date: August 7, 2014
    Inventors: Ronald W. Ausen, Thomas P. Hanschen, William J. Kopecky
  • Patent number: 8794948
    Abstract: An apparatus for the continuous production of a twin wall pipe has mold block halves supplied in pairs to form a mold, and a pipe head, which has an external nozzle for the extrusion of an external hose and an internal nozzle for the extrusion of an internal hose. A support air and venting channel which is annular-cylindrical and concentric with respect to the center longitudinal axis of the pipe head opens out between the external nozzle and internal nozzle.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: August 5, 2014
    Inventor: Ralph Peter Hegler
  • Patent number: 8727760
    Abstract: An apparatus for producing thermoplastic corrugated pipes may include an extrusion device with an extruder and an extrusion die device and a corrugator device with traveling mold jaws. The extrusion device and the corrugator device are positionally movable in relation to one another, for example for adjustment. The extrusion device is positionally movable in relation to the corrugator device in a horizontal plane, while the corrugator device is movable exclusively in height here.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: May 20, 2014
    Assignee: Unicor GmbH
    Inventor: Gerhard Neubauer
  • Patent number: 8721312
    Abstract: A kneading extruder includes a barrel having an extrusion port through which kneaded material including first and second liquid raw material is extruded, and a screw shaft placed in the barrel, the screw shaft kneading the first and second raw material to produce the kneaded material in melted state. A screw driving device continuously rotates the screw shaft at a constant speed, and a die communicates with the extrusion port of the barrel, the die having an extrusion port through which the kneaded material in a pressurized state is extruded. An ejection device ejects a portion of the kneaded material between the extrusion port of the barrel and the extrusion port of the die, the ejection device including an ejection quantity regulating unit for regulating the ejection quantity of the kneaded material so that the pressure of the kneaded material at the extrusion port of the barrel is kept constant.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: May 13, 2014
    Inventor: Kohei Sawa
  • Patent number: 8707891
    Abstract: A spreading head particularly for spreading one or more adhesives or mixtures of adhesives, of the hot-melt or cold type, comprising a body which has two or more ducts, which are all separate or of which two or more converge, each duct being connected to one or more feed channels for conveying the one or more adhesives or mixtures of adhesives to one or more extrusion chambers formed on the upper surface of the body; an abutment element for the one or more adhesives or mixtures of adhesives which exit from the one or more mixing chambers is associable in an upper region with the body.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: April 29, 2014
    Assignee: Hip-Mitsu S.R.L.
    Inventor: Riccardo Arnaboldi
  • Patent number: 8702413
    Abstract: An extrusion process incorporates a forming manifold where a tubular flow of a second material is intermittently interrupted while a core flow of a first material is discharged substantially continuously. Subsequently, the core flow is severed to form individual food items or treats for humans, animals, and the like, where the tubular flow results in an outer component surrounding an inner component which protrudes from one or both ends of the outer component. Material of the core flow is bone-like, while material of the tubular flow is meat like. Material of the tubular flow may include material from the core flow subjected to mixing in a static mixer to achieve a marbled texture of the outer material.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: April 22, 2014
    Assignee: Big Heart Pet Brands
    Inventors: Donald Barnvos, Hilda Fleischman, Davor Juravic, William Keehn, Steven Bautista, Eric J. Lew, Yomayra Diaz, Franjo Baltorinic
  • Publication number: 20140106128
    Abstract: The present disclosure is related to a die suitable for extrusion of thermoplastic vulcanizate, in particular for co-extrusion of multiple materials comprising a thermoplastic vulcanizate. The die comprises a pool die plate, an orifice die plate, and a profile die plate. By utilizing the die according to the present disclosure in extrusion, the flow of extrudate can be well controlled and balanced due to the design of flow pool and through orifice, thereby an extruded article achieves good shape performance, for example, good surface smoothness, and an undesired effect like edge tear, warpage, die moustache, silver line in the extrusion can be avoided.
    Type: Application
    Filed: April 15, 2011
    Publication date: April 17, 2014
    Applicant: ExxonMobil Asia Pacific Research & Development Co. Ltd.
    Inventors: Toshiaki Yamaguchi, Liang Li, Xing Fan
  • Publication number: 20130328228
    Abstract: A variety of techniques for color mixing support a user-controllable palette of colors for use when fabricating three-dimensional objects.
    Type: Application
    Filed: June 10, 2013
    Publication date: December 12, 2013
    Inventors: Nathaniel B. Pettis, Robert J. Steiner, Peter Joseph Schmehl, Charles E. Pax
  • Patent number: 8585389
    Abstract: Device (1) for manufacturing a rubber strip material comprising cord material. The device comprises an extruder (4) with an integrated gear pump (13) with adjustable pump speed and with a conveying screw for extruding unvulcanised rubber around the cord material for the purpose of producing a continuous rubber strip. The device furthermore comprises a control unit (15) for adjusting the pump speed of the gear pump, a measuring unit (16) for measuring the height and the width of the rubber strip and for emitting a measuring signal indicative of the measured height and width. The measuring unit can be connected to the control unit for adjusting the pump speed of the gear pump for emitting the measuring signal to it, wherein the pump speed of the gear pump can be controlled by the control unit at least based on the measuring signal.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: November 19, 2013
    Assignee: VMI Holland B.V.
    Inventors: Jan Kornelis Grashuis, Cornelis Wouteres Janszen
  • Patent number: 8523551
    Abstract: An unvulcanized rubber extruder that realizes extrusion forming of an unvulcanized rubber extrudate ensuring manufacturing of a high-quality tire without any increase of tire manufacturing steps. In the vicinity of left side end portion, in the drawing, of unvulcanized rubber (A) (rubber chafer part), unvulcanized rubber (B) flows along parallel wall (56) on the downside of main rubber flow channel (34) and flows along second inclined surface (38) on the upside of the main rubber flow channel (34). Simultaneously, apart from the main flow of the unvulcanized rubber (B), portion of the unvulcanized rubber (B) is extruded out in the direction perpendicular to auxiliary rubber flow channel (44) (arrow B direction). Accordingly, in the left side end portion, in the drawing, of unvulcanized rubber (A) (rubber chafer part), it appears that the upside and downside are shut in by the flow of the unvulcanized rubber (B).
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: September 3, 2013
    Assignee: Bridgestone Corporation
    Inventors: Norimi Ashimoto, Takeshi Masuda
  • Patent number: 8465272
    Abstract: Apparatus and methods for fabricating food items include extruding a first hot plastic food mass through multiple passages (14) and co-extruding a second hot plastic food mass through a feed stem (22) received in each of the multiple passages (14) and through nozzles (42). Each nozzle (42) includes a first portion (42b) in communication with the feed stem (22) but not the passage (14) and a second portion (42a) in communication with the passage (16) but not the feed stem (22). The nozzles (42) are rotatable in gearing relation with the drive gear (70) of a servomotor (72). The co-extruded ropes are conveyed at a linear speed rate less than or equal to the discharge speed from the nozzles (42), cooled, and cut into individual pieces in the form of peelably separable strands.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: June 18, 2013
    Assignee: General Mills, Inc.
    Inventors: James N. Weinstein, James M. Olive, Peter A. Huberg, Laurie Burgess, Thomas Leuhrs, Jennifer M. Mcaab
  • Publication number: 20130127086
    Abstract: A method and an apparatus for forming a plurality of polymer layers via a plurality of slots (60), wherein the plurality of layers are combined to generate a multilayer polymer flow stream; and controlling heat flow to the plurality of slots in conjunction with the formation of the plurality of polymer layers. The multilayer polymer flow stream may be used to generate a multilayer film. In some embodiments, the cross-web layer thickness profile may be controlled by controlling heat flow from heaters (54a, 54b) to the plurality of slots that form the plurality of polymer layers.
    Type: Application
    Filed: January 10, 2011
    Publication date: May 23, 2013
    Inventors: Kristopher J. Derks, Robert M. Biegler, Terence D. Neavin
  • Patent number: 8388331
    Abstract: A liquid flow converging device and a method of manufacturing a multi-layer film. The converging device comprises an element (A) having a large number of slits for passing two liquid flows to be converged therethrough and an element (B) having a first converging part for converging, in a laminar form, a large number of laminar liquid flows formed by passing the liquid flows through the large number of slits to form a first laminar liquid flow. The converging device for the liquid flow comprises a first confluence forming device having two or more elements (A) installed independently of each other and two or more elements (B) installed independently of each other.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: March 5, 2013
    Assignee: Toray Industries, Inc.
    Inventors: Syunichi Osada, Yoshiharu Furuno, Fumiyasu Nomura
  • Publication number: 20120288703
    Abstract: A sea-island composite fiber has an island component which is ultrafine fibers having a noncircular cross-section, the ultrafine fibers being uniform in the degree of non-circularity and in the diameter of the circumscribed circle. The sea-island composite fiber includes an easily soluble polymer as the sea component and a sparingly soluble polymer as the island component, and the island component has a circumscribed-circle diameter of 10-1,000 nm, a dispersion in circumscribed-circle diameter of 1-20%, a degree of non-circularity of 1.2-5.0, and a dispersion in the degree of non-circularity of 1-10%.
    Type: Application
    Filed: January 26, 2011
    Publication date: November 15, 2012
    Inventors: Masato Masuda, Akira Kishiro, Joji Funakoshi, Yoshitsugu Funatsu, Seiji Mizukami
  • Patent number: 8297961
    Abstract: A cutter assembly for an extruder includes an elongated extrusion member having an open feed end. The open feed end is attachable in fluid communication with the extruder for supplying a mash to said elongated extrusion member. An extrusion die is supported on a front of the elongated extrusion member. The extrusion die includes an extrusion outlet formed therein. A filling tube is mounted on a rear of the elongated extrusion member and is attachable in fluid communication with the extruder for supplying a filling to the filling tube. A cutter member has a drivable end and a cutter blade with a cutting surface for cutting extrudate to a desired length as the extrudate exits the extrusion die. The cutter member is operably connectable at the drivable end to a drive device of the extruder for reciprocatably sliding the cutting surface of the cutter blade over and away from the outlet of the extrusion die.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: October 30, 2012
    Assignee: Kerry, Inc.
    Inventor: Thomas B. Hunter
  • Patent number: 8267682
    Abstract: An extrusion system and method uses an accumulator to control and use excess plastic melt. The accumulator is situated between an extruder and a gear pump. The accumulator includes an accumulator housing to store excess plastic melt from the extruder and an accumulator spring connected to an accumulator piston to subsequently send the excess plastic melt to the gear pump. In another embodiment, the accumulator includes an accumulator housing to store excess plastic melt from the extruder and a hydraulics system to send the excess plastic melt to the gear pump. The accumulator can be a first in first out (FIFO) device having a melt passage through the accumulator piston. The system and method are used particularly advantageously in Alternate Polymer extrusion installation in which gear pumps regularly increase and decrease their speed but in which the melt-supplying extruder cannot accommodate such rapid speed changes.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: September 18, 2012
    Inventors: Holton E. Harris, K. Burr McGhee
  • Patent number: 8231374
    Abstract: In certain aspects of the invention, an extrusion apparatus for making a multilayer article includes multiple discs, each of which has at least one passageway configured to permit fluid flow therethrough in a flow direction. At least one of the discs includes a cone shaped portion extending substantially parallel to the flow direction.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: July 31, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Albert K Chin, John Jianhua Chen, Thomas A. Svatek, Ronald A Sahatjian
  • Publication number: 20120189789
    Abstract: A system and method are presented in which a flow of plastic is extruded to obtain nano-sized features by forming multiple laminated flow streams, flowing in parallel through the non-rotating extrusion system. Each of the parallel laminated flow streams are subjected to repeated steps in which the flows are compressed, divided, and overlapped to amplify the number of laminations. The parallel amplified laminated flows are rejoined to form a combined laminated output with nano-sized features. The die exit is formed to provide a tubular shape.
    Type: Application
    Filed: December 23, 2011
    Publication date: July 26, 2012
    Inventors: Michael Ernest Langlais, Richard Guillemette
  • Patent number: 8226391
    Abstract: A micro-extrusion printhead assembly utilized in a micro-extrusion system to form parallel extruded gridlines of material on a substrate includes a nozzle having a tapered (e.g., triangular or trapezoidal) cross-section arranged such that a lower surface of each gridline is substantially wider than its upper edge, and such that side surfaces of the extruded gridlines reflect incident light beams into exposed surface areas of the substrate, thereby minimizing the effective shadowed surface area under the gridline. In one embodiment, the fluidic channels of each nozzle are fabricated by cutting or etching progressively wider channels into a series of rigid layers, and then stacking the rigid layers to form a layered nozzle structure. In another embodiment, a single layer is processed to include a tapered cross-section having the desired triangular or trapezoidal cross-section.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: July 24, 2012
    Assignee: SolarWorld Innovations GmbH
    Inventors: David K. Fork, Andre Kalio
  • Patent number: 8226399
    Abstract: This invention provides methods and devices for manufacturing moldable materials including various types of natural and synthetic clays, edible materials such as cookie dough, and modeling compound by forming a moldable billet through various techniques, and reducing the cross section of said moldable billet such that features in the moldable billet appear in a similar arrangement in the resulting extruded product.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: July 24, 2012
    Inventors: Douglas P. DuFaux, Maurice Belisle
  • Patent number: 8215940
    Abstract: Apparatus for multiplying layers in a composite polymer stream includes an intermediate section having open conduits sandwiched between housing sections that close the conduits. The conduits have respective first stages separated by a first blade extending to a first face, and respective second stages separated by a second blade extending to a second face. The first stages separate the stream into sub-streams and compress and shift the sub-streams in a first dimension, whereas the second stages shift the sub-streams in a second dimension. In order to maintain a constant cross-sectional area of the sub-streams, the housing sections may be provided with complementary open channels. The apparatus can be used to multiply layers which are side-by-side or one-over-another by changing orientation in the direction of flow.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: July 10, 2012
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Scott Allen Winroth
  • Publication number: 20120161366
    Abstract: A method and apparatus for applying a blended rubber composition directly onto a tire building drum or core is described. A first extruder and a first gear pump for a first compound is provided. A second extruder and a second gear pump for a second compound is provided. The output of the first and second gear pump is fed into the inlet of the main extruder. A third pumping means is provided for pumping an accelerator mixture into the inlet of the main extruder; mixing together said first compound and said second compound and said accelerator mixture in said extruder and applying the mixture onto a tire building drum or core.
    Type: Application
    Filed: July 1, 2011
    Publication date: June 28, 2012
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Gary Robert Burg, Christopher David Dyrlund, Brian Richard Koch
  • Patent number: 8177542
    Abstract: The present invention comprises a rotary drive nozzle die machine for use with at least first and second dough extruders. The machine includes at least one rotatable nozzle having at least two openings for extruding at least two strands of dough therethrough, a first compression head for directing a first flow of a first type of dough under pressure from the first extruder toward the at least one rotatable nozzle and a second compression head for directing a second flow of a second type of dough under pressure from the second extruder toward the at least one rotatable nozzle.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: May 15, 2012
    Assignee: Reading Bakery Systems
    Inventors: E. Terry Groff, Joseph S. Zaleski, Jr., Kenneth J. Zvoncheck
  • Patent number: 8162644
    Abstract: The invention is made to accelerate extrusion forming by reducing a friction between a forming rubber formed to cover a cord or formed to extrude and an inner wall face of a path at inside of a die as the die used for an extrusion forming head, a portion of an upstream portion of a rubber forming path (2) reaching a front end outlet (4) from a rubber storing portion (3) at inside of a die main body 1 is provided with a fluid sending inlet (8) for sending a fluid between an outer peripheral face of a forming rubber (R1) at inside of the rubber forming path (2) and an inner wall face of the path and a resistance of passing the forming rubber (R1) on a downstream side is reduced by the fluid.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: April 24, 2012
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventors: Shigeo Kudo, Tetsuo Tatara, Osamu Fujiki
  • Patent number: 8157555
    Abstract: An extrusion feed device for a composite resin capable of forming a composite resin extruded material having a variety of layer configurations not necessarily symmetrical. A plurality of cylindrical flow passages (3) and (4) for feeding a molten resin, an opening/closing valve (7) capable of opening/closing a center flow passage (36) and a cylindrical flow passage (4a), and a center opening/closing valve (39) capable of opening/closing the center flow passage are provided at the upstream side end part (2a) of a discharge passage (2) for delivering the composite resin extruded material. A main resin (30a) forming an outside layer is always fed from the cylindrical flow passage (3), and the other molten resin (30b) and/or (30c) as an auxiliary resin is fed, at a proper timing, from the cylindrical flow passage (4) and the center flow passage (36) on the inside into the molten resin (30a) on the outside by controlling the opening/closing valve (7) or the center opening/closing valve (39).
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: April 17, 2012
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Hotaka Fukabori, Tsuneo Imatani, Makoto Etoh, Kazunobu Watanabe
  • Patent number: 8113811
    Abstract: Techniques for preparing PNCs are provided. In one embodiment, a polymer extruding device may include a barrel configured to accommodate a composite material, a shaft rotatably disposed in the barrel, and a motor coupled to the shaft and configured to rotate the shaft, thereby moving the composite material. The polymer extruding device may further include a die including one or more injectors configured to inject nano particles into the die to cause shear stress to be exerted to the composite material, thereby forming a layer of the nano particles on a surface of the composite material.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: February 14, 2012
    Assignee: SNU R&DB Foundation
    Inventor: Youngtack Shim
  • Patent number: 8113810
    Abstract: An extrusion die assembly includes a hollow extrusion head which has a head inner surface, a central passage inlet opening, a forming section having a die opening, and a receiving space that extends from the central passage inlet opening to the forming section. A flow-dividing core is disposed within the receiving space, and has a central passage connected to the central passage inlet opening and extending to the forming section, and a grooved outer surface that is disposed upstream of the forming section and that has at least one groove which cooperates with the head inner surface to define at least one accumulating passage. An annular passage is formed in the forming section and around the flow-dividing core and the central passage, is connected to the accumulating passage, and merges with the central passage in the die opening.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: February 14, 2012
    Inventor: Se-Hsing Tsai
  • Patent number: 8109229
    Abstract: A spreading head particularly for spreading one or more adhesives or mixtures of adhesives, of the hot-melt or cold type, comprising a body for conveying the one or more adhesives to an extrusion tool; the body has two or more ducts, which are all separate or of which two or more converge, and the tool has one or more first extrusion channels and/or one or more mixing chambers which are connected to one or more second extrusion channels, the first and/or second extrusion channels being optionally mutually superimposed and/or laterally adjacent.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: February 7, 2012
    Assignee: HIP-MITSU S.R.L.
    Inventor: Riccardo Arnaboldi
  • Patent number: 8105064
    Abstract: For the purpose of molding a multilayered film/sheet having a highly precise thickness of each layer, movable choker bars (31, 32) are movably arranged in the middle of molten resin channels (111, 112), and a plurality of choker adjustment bolts (35, 36) are arranged at a predetermined pitch in the die width direction. The choker bars with the choker adjustment bolts are moved so as to adjust the gap in a choker portion. Thermal conductors (37, 38) are provided with the respective choker adjustment bolts.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: January 31, 2012
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Kenji Nozawa, Koji Mizunuma
  • Patent number: 8092204
    Abstract: The present invention provides an apparatus for inflation extrusion molding of pressure-sensitive adhesive sheet, the apparatus including: one or a plurality of extruders; a die into which one or a plurality of resin materials including at least a resin material for forming a pressure-sensitive adhesive layer and extruded respectively from the extruders are respectively introduced and which extrudes from an ejection opening the resin materials into an inflated cylindrical shape having a predetermined diameter in accordance with an inflation method; and two stabilizers facing each other at a predetermined angle so as to upwardly approach each other, and defining a space therebetween through which the cylindrically-shaped resin materials extruded from the die are passed to be deformed into a pressure-sensitive adhesive sheet in a flattened elliptical shape having a predetermined width, in which the stabilizers each have a plurality of air floating portions each of which blows air toward the resin materials; and
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: January 10, 2012
    Assignee: Nitto Denko Corporation
    Inventors: Kooki Ooyama, Shinsuke Ikishima, Naoto Hayashi, Tadao Torii, Toshihisa Yamane, Yuuki Katou
  • Patent number: 8062017
    Abstract: A splice bar for a tire tread die designed for providing a narrow strip of electrically conductive rubber extending from a lower under tread to the surface of the outer tread by positioning a slotted chimney block in a the outer tread rubber passage and having a passage between the chimney slot and the under tread rubber passage specially shaped for improving the flow of rubber during extrusion. This passage is essentially straight for guiding a strip-shaped stream of rubber of the under tread to the chimney slot. The passage intersects the rear surface of the splice bar to form a generally rectangular shaped corridor extending from the rear surface to the chimney slot.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: November 22, 2011
    Assignee: The Goodyear Tire & Rubber Co
    Inventor: Damien Ghislain Clausse
  • Patent number: 7976926
    Abstract: Co-extrusion apparatus for manufacturing a laminated plastic film or sheet comprises a plug-type layer sequencer including a plurality of channels for conducting a plurality of polymer flows; a transitional aspect ratio block for inducing the plurality of polymer flows to converge; and a flow velocity profiler cartridge for combining the plurality of polymer flows to form the film. In accordance with one embodiment, the layer sequencer includes a tapered selector pin which minimizes mechanical damage when the selector pin is removed. In accordance with another embodiment, the flow velocity profiler cartridge includes inserts fitting within cavities for controlling the polymer flows which form the layers of the film or sheet manufactured by the apparatus. At least one such insert defines lanes within an associated cavity so as to promote the formation of lanes of differing polymer composition within at least one layer of the laminated sheet or film.
    Type: Grant
    Filed: August 16, 2004
    Date of Patent: July 12, 2011
    Assignee: Davis-Standard, LLC
    Inventors: Timothy P. Watson, Andrew W. Christie
  • Patent number: 7959426
    Abstract: An apparatus for producing a parison having a plurality of resin layers and at least one resin layer of varying thickness is disclosed. The parison is used to form containers in a blow mold machine. An extruder is in communication with a flow head to form the parison. The apparatus includes a valve block having a duct providing communication between a second extruder and the flow head. Flow of resin from the second extruder directly to the flow head is controlled by a valve in the valve block. An accumulator cylinder and piston are also in communication with the duct and control the resin pressure within the duct. Opening and closing the valve and stroking the piston sends resin from the second extruder to the flow head and forms a resin layer having a varying thickness on the parison. A method of forming a varying layer is also disclosed.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: June 14, 2011
    Assignee: Graham Packaging Company, L.P.
    Inventors: Gregory D. Taylor, Lawrence Korpanty
  • Patent number: 7922471
    Abstract: An extrusion head is disposed over a substrate, and material is extruded through an oblique (e.g., semi-circular or tapered) outlet orifice of the extrusion head to form an associated extruded structure having an equilibrium shape that resists settling after being deposited on the substrate. The extrusion head includes fluidic channels having a flat surface formed by a flat first (e.g., metal) sheet, and an oblique (e.g., substantially semi-cylindrical) surface formed by elongated oblique trenches that are etched or otherwise formed in a second sheet. The fluidic channel communicates with the outlet orifice, which has a flat edge formed by the first sheet, and an oblique edge formed by an end of the oblique trench. The material is extruded through the outlet orifice such that its flat lower surface contacts the substrate, and its oblique upper surface faces away from the substrate. Two materials are co-extruded to form high aspect-ratio gridlines.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: April 12, 2011
    Assignee: Palo Alto Research Center Incorporated
    Inventors: David K. Fork, Thomas S. Zimmerman
  • Patent number: 7891963
    Abstract: A manufacturing apparatus of a resin container includes a main extruder which supplies a base material resin, and a sub-extruder which supplies a sub-material. The sub-material supplied from the sub-extruder is discharged from a discharge portion provided in a die head so that the sub-material joins the base material resin continuously supplied from the main extruder. A parison is then extruded from a slit portion opened on an end side of the die head, and subjected to blow molding, thereby forming a coating layer which covers the whole or a part of a container body formed of the base material resin by using the sub-material. A suck-back mechanism which pulls back the sub-material from the discharge portion is provided between the sub-extruder and the die head, and the discharge portion is provided in the vicinity of the slit portion in-the die head.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: February 22, 2011
    Assignee: Toyo Seikan Kaisha Ltd.
    Inventors: Kenjiro Tanaka, Isamu Takeda, Atsushi Yoneda, Eriko Kimotsuki
  • Patent number: 7883329
    Abstract: The invention relates to a device for the production of multi-layer, co-extruded, tubular pre-forms made from thermoplastic plastic. A co-extrusion head (10) comprises co-axially arranged flow channels (FK1, FK2), each supplied by a single inlet opening (ZF1, ZF2) with a material melt, distributed annularly in a distribution ring (26, 28). The gap width in each distribution ring (26, 28) is greater in the vicinity of the inlet opening (ZF1, ZF2) than the gap width (s2, s6) in the region of the side opposing the inlet opening (ZF1, ZF2). The flow channels (FK1, FK2) are also asymmetric with regard to the gap widths.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: February 8, 2011
    Inventor: G√ľnter Richter
  • Patent number: 7883328
    Abstract: An extrusion device for making spiral stripping electrical wires is disclosed to include a fixed mold member, which has a main flow path and a supplementary flow path for the passing of a first insulative material and a second insulative material, and a rotating mold member, which is rotatably supported on the front end of the fixed mold, having a mold hole axially connected to the outlet of the main flow path and one or multiple flow paths, each flow path of the rotating mold member having an outlet in communication with the mold hole and a common annular inlet disposed in communication with the outlet of the supplementary flow path for guiding the second plastic material spirally into the first plastic material to form a spiral strip in the insulator during extrusion of the two plastic materials with a conductor through the mold hole.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: February 8, 2011
    Assignee: Lorom Industrial Co., Ltd.
    Inventor: Chih-Hsiang Lin