Intermittent Feed Patents (Class 425/132)
  • Patent number: 10493701
    Abstract: A printer that forms three-dimensional objects has two printheads, one of which is positioned to eject material drops in a direction that is parallel to a plane of a planar member on which an object is formed by the two printheads.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: December 3, 2019
    Assignee: Xerox Corporation
    Inventors: Joseph M. Ferrara, Jr., Timothy J. Clark, Douglas E. Proctor
  • Patent number: 10456992
    Abstract: Apparatus and associated methods for a user configurable modular 3D layering system provide a modular frame assembly, and two or more deposition print heads that are user-configurably disposed along an X-axis carriage drive system. A deposition-receiving tray may have a configurable Z-axis throw. In an exemplary embodiment, an X-axis carriage drive system may include one or more sensors for detecting a starting position of the print heads. For example, the sensor may be a micro-switch engageable by one or more print heads. In an exemplary embodiment, the print heads are removable from the X-axis carriage assembly. In some embodiments, each print head may operate independently of adjacent print heads. In an exemplary embodiment, each print head may include an injection nozzle for depositing the filament. In some embodiments, a y-carriage assembly may include a height sensor for the tray.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: October 29, 2019
    Assignee: Stacker, LLC
    Inventor: Norston Fontaine
  • Patent number: 10319153
    Abstract: A color adjustment unit in a shaping controller includes a 3D/2D conversion unit which converts 3D data representing a three-dimensional object having colored layers formed on the surface thereof into 2D data; a two-dimensional color patch data creating unit which creates, as two-dimensional color patch data, a plurality of 2D images in which at least one kind of parameter of a plurality of kinds of parameters related to a color of each layer of the colored layers in the converted 2D data is set at a plurality of different levels; a three-dimensional color patch data creating unit which applies thickness information about thicknesses of the colored layers depending on the number of layers of the colored layers to the two-dimensional color patch data to create three-dimensional color patch data; and a color patch layering unit which layers three-dimensional color patches depending on the thickness according to the three-dimensional color patch data.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: June 11, 2019
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventors: Masaya Nagahari, Hiroyoshi Ohi
  • Patent number: 10307959
    Abstract: The present invention is a three-dimensional printing system which is capable of printing with multiple different printing materials, including homogenous materials, such as cement paste, or heterogeneous materials, such as concrete. Functionality is accomplished by novel, critical structures including but not limited to a movable gate capable of controlling the flow of printing materials without clogging or becoming otherwise damaged. The system has a print head that discharges printing material through a discharge aperture. The movable gate is rotatably connected to the print head, allowing it to cover the discharge aperture and cut off the flow of printing material when actuated and rotated into position. Certain embodiments also include hose positioning systems to prevent hoses delivering printing material from disconnecting or damaging the printed structure.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: June 4, 2019
    Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY
    Inventors: Gerald R. Northrup, William Jacob Wagner, Megan A. Kreiger, Bruce A. MacAllister, Michael Patrick Case, Ghassan Al-Chaar
  • Patent number: 10293545
    Abstract: A three-dimensional modeling apparatus is provided with a head unit for modeling an object by discharging a liquid into each unit grille that is defined in accordance with modeling resolutions of a cross section body in an X direction and a Y direction and a lamination interval in a Z direction, and a control unit for controlling the head unit. In the case where one or more types of the chromatic liquids are discharged into the unit grille by controlling the head unit and the spatial volume of the unit grille is not filled with the one or more types of chromatic liquids, the control unit causes the achromatic liquid to be discharged into the unit grille in addition to the one or more types of chromatic liquids so as to fill the spatial volume of the unit grille with both the chromatic liquids and the achromatic liquid.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: May 21, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Eiji Okamoto
  • Patent number: 9566744
    Abstract: A three-dimensional printer positions a tool such as an extruder in three-dimensional space using a passive, i.e., non-motorized, z-axis alignment technique that generates z-axis movement based upon motorized movements along another axis. In this manner, intermittent z-axis step movements such as those from layer to layer in a multi-layer fabrication process can be performed without the need for an additional, dedicated motor for z-axis movement. The passive system may employ a variety of different gearing techniques to convert x-axis or y-axis movements into a z-axis movement under various conditions. For example, the three-dimensional printing tool may move to a predetermined position along a first axis (e.g., an x-axis or y-axis) where a passive gear assembly engages a rack or the like. When in this predetermined position along the first axis, the tool can move along a second axis and create a resulting movement on a third axis (e.g., the z-axis).
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: February 14, 2017
    Assignee: MakerBot Industries, LLC
    Inventors: Philip C. Carbone, Warren J. Ellis, Jr., Mitchell J. Kelley, Kate E. Nevin
  • Patent number: 9481133
    Abstract: A three-dimensional printer positions a tool such as an extruder in three-dimensional space using a passive, i.e., non-motorized, z-axis alignment technique that generates z-axis movement based upon motorized movements along another axis. In this manner, intermittent z-axis step movements such as those from layer to layer in a multi-layer fabrication process can be performed without the need for an additional, dedicated motor for z-axis movement. The passive system may employ a variety of different gearing techniques to convert x-axis or y-axis movements into a z-axis movement under various conditions. For example, the three-dimensional printing tool may move to a predetermined position along a first axis (e.g., an x-axis or y-axis) where a passive gear assembly engages a rack or the like. When in this predetermined position along the first axis, the tool can move along a second axis and create a resulting movement on a third axis (e.g., the z-axis).
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: November 1, 2016
    Assignee: MakerBot Industries, LLC
    Inventors: Philip C. Carbone, Warren J. Ellis, Jr., Mitchell J. Kelley, Kate E. Nevin
  • Patent number: 9434092
    Abstract: A device for separating a plurality of doses of plastics from a plurality of extruder outlets (2,3) comprises a movable element that carries two groups of dose separating elements (A) wherein at least a first group is movable with respect to at least a second group. The separating device expels the doses in a circular arrangement for subsequent compression molding of a liner (17,18) for a container closure (C).
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: September 6, 2016
    Assignee: SACMI COOPERATIVA MECCANICI IMOLA SOCIETA' COOPERATIVA
    Inventor: Fabrizio Villa
  • Patent number: 9322602
    Abstract: A heat exchanger provided with a plurality of plate-like fins 2 arranged in parallel with a predetermined interval and a plurality of flat-shaped heat transfer pipes 3 inserted in a direction orthogonal to said plate-like fins 2 and through which a refrigerant flows, in which said heat transfer pipe 3 has an outside shape with a flat outer face arranged along an air flow direction and a section substantially in an oval shape and first and second refrigerant flow passages 31a, 31b made of two symmetric and substantially D-shaped through holes having a bulkhead 32 between the two passages inside, which is bonded to said plate-like fin 2 by expanding diameters of said first and second refrigerant flow passages 31a, 31b by a pipe-expanding burette ball.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: April 26, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Sangmu Lee, Akira Ishibashi, Takuya Matsuda
  • Patent number: 9277753
    Abstract: A system and method for producing a co-filled product. A center layer is fed through a center channel of a die face and an outer layer is fed through an outer layer of a die face. The center channel is coupled to a fluid control device which controls the flow of the center layer. The position of the fluid control device is determined by the location of a cutting blade located downstream from the die face. In one embodiment the fluid control device is synchronized to ensure that when the product is cut by the cutting blade the cutting blade does not cut through the center layer.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: March 8, 2016
    Assignee: FRITO-LAY NORTH AMERICA, INC.
    Inventor: Eugenio Bortone
  • Publication number: 20150147421
    Abstract: A contact coating device comprising a high viscosity rapid deposition head comprising a deposition body defining a material supply passage; a dispensing/shaping nozzle being formed adjacent in a leading end surface of the high viscosity rapid deposition head for dispensing of the high viscosity material from the high viscosity rapid deposition head, and the dispensing/shaping nozzle comprising a dispensing cavity; at least one dispensing passage providing communication between the material supply passage and the dispensing/shaping nozzle for suppling the high viscosity material to the dispensing cavity; and a heating element for heating a portion of the high viscosity rapid deposition and facilitating flow of the high viscosity material through the high viscosity rapid deposition head. A multi-head material deposition system which comprises a first drop-on-demand device, a second drop-on-demand device and at least one contact coating rapid deposition head is also disclosed.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 28, 2015
    Inventors: Bun Chay TE, John Theodore WIGAND
  • Publication number: 20150145158
    Abstract: Methods and devices use a three-dimensional scanner and a three-dimensional printing device operatively connected to a processor. The three-dimensional scanner automatically determines a size and shape of an item to be packaged and the processor automatically identifies information corresponding to the item to be packaged. The processor automatically controls the three-dimensional printing device to form a container that is customized to match the size and shape of the item to be packaged (using a continuous additive process of forming successive layers of material in different shapes). When forming the container, the processor also automatically controls the three-dimensional printing device to form a label as part of the container. The label includes color variations to visually convey the information identified by the processor.
    Type: Application
    Filed: November 25, 2013
    Publication date: May 28, 2015
    Applicant: XEROX CORPORATION
    Inventors: Jonathan D. Levine, Donald M. Pangrazio, III
  • Publication number: 20150119479
    Abstract: A method of making a reconfigurable three-dimensional shape includes the following steps: (i) moving multiple print heads in three dimensions relative to a printing surface, where the print heads include a conductor print head and a polymer print head; (ii) depositing a conductive material from the conductor print head; and (iii) depositing a shape-memory polymer from the polymer print head. The depositing steps form a volumetric shape of a shape-memory polymer, capable of changing shape, with a conductive material capable of acting as a heating element integrally formed in the volumetric shape. The method can further include the steps of heating the shape-memory polymer above a transition temperature, changing the shape of the volumetric shape following the heating step, and then allowing the shape-memory polymer to cool below the transition temperature to fix the new volumetric shape.
    Type: Application
    Filed: October 29, 2013
    Publication date: April 30, 2015
    Applicant: Raytheon Company
    Inventors: Frederick B. Koehler, Terry M. Sanderson
  • Publication number: 20150093465
    Abstract: Additive manufacturing systems and apparatus include, in one aspect, a material deposition system including an extruder for deposition materials, the extruder including two or more material entry ports, a mixing chamber, and an exit orifice; and a controller coupled with the extruder to dynamically change delivery rates of the deposition materials to be mixed in the mixing chamber before flowing from the exit orifice; wherein the controller combines a desired volume flow rate of material to flow from the exit orifice with a mix ratio to specify the delivery rates of the deposition materials. The system can include filament drive systems to feed the thermoplastic materials in filament form into the entry ports, and the controller can dynamically change the mix ratio when operating the filament drive systems to control one or more properties of the material to flow from the exit orifice.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Inventor: James Sherwood Page
  • Publication number: 20150056318
    Abstract: A printing head module and a three dimensional (3-D) printing apparatus using the same are provided. The 3-D printing apparatus includes a base and the printing head module. The printing head module is disposed above the base and includes a printing head and at least one material spool. The printing head includes a plurality of assembling pieces assembled with each other to form the printing head and define a nozzle of the printing head. Each of the assembling pieces includes at least one material-supply groove. The material-supply grooves of any two adjacent assembling pieces are located corresponding to each other to form at least one material-supply channel together. Each material spool is connected to the material-supply channel for providing at least one fluid material to the material-supply channel. The fluid material is transmitted via the material-supply channel to be dispensed on the base.
    Type: Application
    Filed: January 16, 2014
    Publication date: February 26, 2015
    Applicants: XYZprinting, Inc., Cal-Comp Electronics & Communications Company Limited, Kinpo Electronics, Inc.
    Inventor: Kwan Ho
  • Publication number: 20140328962
    Abstract: Disclosed is a nozzle assembly for usage with at least one conduit, the nozzle assembly including a nozzle support (88) including a nozzle entry surface, a nozzle exit surface, and a plurality of nozzle holding conduits defined by the nozzle support (88) and extending from the nozzle entry surface to the nozzle exit surface, the nozzle support being in removable association with the at least one conduit at the nozzle entry surface, and a plurality of nozzles (76) removably associated with the nozzle support (88) via insertion of the plurality of nozzles (76) into the plurality of nozzle holding conduits, the plurality of nozzles (76) being in fluid communication with the at least one conduit via the removable association between the nozzle support (88) and the at least one conduit.
    Type: Application
    Filed: September 20, 2012
    Publication date: November 6, 2014
    Applicant: Intercontinental Great Brands LLC
    Inventor: Gabriel Petre
  • 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: 8727754
    Abstract: The claimed subject matter relates to a rotary die device for producing soft capsules, comprising a capsule forming unit for forming a soft-capsule shell and a dosing unit for feeding a filling material into the capsule forming unit, characterized in that the dosing unit comprises a conveying apparatus of viscous melts and a portioner, wherein the portioner is connected at an end thereof to the conveying apparatus of viscous melts and is arranged in a filling wedge with a section in such a way that filling material from the portioner reaches the location of the capsule filling directly or by means of one or more channels having a length of at most 30 mm. Using said device, high-viscosity filling materials can be filled and thus novel soft capsules can be made accessible.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: May 20, 2014
    Assignee: Swiss Caps Rechte und Lizenzen AG
    Inventors: Erich Brocker, Alois Peter, Georg Sydow
  • 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
  • Patent number: 8696341
    Abstract: The invention relates to a device for producing concrete blocks, particularly paving stones, building blocks or the like, comprising a storage container forming a receiving chamber for a plurality of layers of concrete in different colors. Dispensing means are provided, in order to dispense partial amounts of the layers from the receiving chamber such that a release device connected downstream receives a mixture of the layers of concrete in different colors. At least a partial section of a side wall of the receiving chamber is provided with at least one dispensing opening for dispensing a partial amount of the layers. The size of the passage of the dispensing opening can be varied by the dispensing means.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: April 15, 2014
    Assignee: Baustoffwerke Gebhart & Soehne GmbH & Co. KG
    Inventors: Manfred Staehle, Hans Gebhart
  • Patent number: 8673197
    Abstract: A multi-layer structure comprising a functional resin layer obtained by covering a core layer of a base body resin or a second functional resin with a shell layer of a first functional resin, and a base body resin layer containing the functional resin layer therein. The layers of the functional resins are formed at positions where they are allowed to exhibit their functions to a sufficient degree, a plurality of functions can be imparted, and a molten resin mass having the above multi-layer structure can be formed by the compression-forming.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: March 18, 2014
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Makoto Etoh, Hiroaki Goto, Atsushi Kikuchi
  • Patent number: 8574653
    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: May 30, 2006
    Date of Patent: November 5, 2013
    Assignee: Del Monte Corporation
    Inventors: Donald Barnvos, Hilda Fleischman, Davor Juravic, William Keehn, Steven Bautista, Eric J. Lew, Yomayra Diaz, Franjo Baltorinic
  • Publication number: 20130251833
    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: Application
    Filed: December 13, 2010
    Publication date: September 26, 2013
    Applicant: GIMAC DI MACCAGNAN GIORGIO
    Inventor: Giorgio Maccagnan
  • Publication number: 20130216674
    Abstract: A method of manufacturing products comprising an outer casing of a first material (12) and containing at least one chamber (18) filled with a second material (14) comprises extruding the first material through a die (10) to form an extrudate body (16) and delivering the second material through at least one fluid outlet (22) in the die to form the least one filled chamber. The extrusion process is varied periodically and momentarily to produce sections (30) of extrudate body having no filled chamber. In one embodiment, the flow of the second material (14) is periodically reduced to form the unfilled sections. The flow of the second material (14) may be reduced by increasing the volume of a supply path for the second material upstream from the die (10). Apparatus for carrying out the method is also disclosed. The method and apparatus are particularly adapted for producing food, and especially confectionery, products.
    Type: Application
    Filed: February 25, 2011
    Publication date: August 22, 2013
    Inventors: Roderick Andrew Haines, Stuart Mark Banister, Finbarr Charles Ronald Williamson, Simon Philip Jelley, Andrew Christopher Bufton, Gavin Bown
  • Patent number: 8389254
    Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: March 5, 2013
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Robert Dicosimo, John Edward Gavagan, Mark Scott Payne
  • 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: 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
  • 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
  • Publication number: 20110236623
    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: Application
    Filed: June 1, 2011
    Publication date: September 29, 2011
    Applicant: Davis-Standard, LLC
    Inventors: Timothy P. WATSON, Andrew W. CHRISTIE
  • Patent number: 7972131
    Abstract: A plastification and injection unit in injection-molding machines for processing of polymer materials, for example rubber, has a plastification screw that is disposed so as to rotate in a screw cylinder, which simultaneously represents the injection piston. The screw cylinder is disposed in an injection cylinder, in an axially displaceable manner. The injection cylinder can be connected with the sprue channel of an injection-molding die by way of a nozzle, and the injection piston has a back-flow barrier. The screw is axially displaceable in the screw cylinder by means of a separate drive. The screw tip projects out of the screw cylinder and has a closure body having a sealing surface for contact with the face surface of the screw cylinder.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: July 5, 2011
    Assignee: Klöckner Desma Elastomertechnik GmbH
    Inventors: Olaf Kuechler, Edwin Baumann, Volker Krell
  • 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
  • Publication number: 20110062621
    Abstract: The present invention is directed to provide an apparatus and method for forming food into doughnut shape that is capable of forming food into rings with a simple structure. The apparatus includes a supplying unit supplying a food material 2; a discharging unit 3 continuously discharging the supplied food material through a nozzle; a forming unit 4 dividing the food material into rings; a conveyor belt 5 carrying the resulting doughnut-shaped food products; and a support unit 6 supporting the products. The supplying unit 2 supplies an outer food material F and an inner food material G to the discharging unit 3 under pressure. The discharging unit 3 includes an inside forming member 32, around which the inner food material G is intermittently discharged from an annular outlet 34, and the outer food material is continuously discharged to sandwich the inner food material G, resulting in formation of a tubular food material.
    Type: Application
    Filed: September 15, 2010
    Publication date: March 17, 2011
    Applicant: KOBIRD CO., LTD.
    Inventors: Masao KOBAYASHI, Hironori Kobayashi, Toru Fukiage
  • Publication number: 20100178382
    Abstract: Gum manufacturing machinery and method of manufacturing gum is illustrated in which a gum loafing machine generates loaves of finished gum that are then subsequently run through a gum conditioner to more uniformly set the temperature and viscosity of the gum material prior to further processing. Upon achieving the appropriate conditioning level, a further forming extruder may be used to generate a continuous gum ribbon for subsequent rolling and scoring operations. The gum conditioner may include vertically stacked conveyors that have different operational modes including a first mode that provides a serpentine path for a long residence time and a second mode that provides a cascading path that avoids or bypasses much of the length of some of the conveyors to provide a shorter residence time. The gum manufacturing machinery may be used in an adjustable manner so as to accommodate difference gum recipes for different batches of gum product.
    Type: Application
    Filed: January 12, 2009
    Publication date: July 15, 2010
    Applicant: Cadbury Adams USA LLC
    Inventors: Jim Olejarski, Joseph Roarty, Arthur W. Upmann, James A. Duggan
  • Publication number: 20100129482
    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: Application
    Filed: January 22, 2010
    Publication date: May 27, 2010
    Inventors: Donald Barnvos, Hilda Fleischman, Davor Juravic, William Keehn, Steven Bautista, Eric J. Lew, Yomayra Diaz, Franjo Baltorinic
  • Publication number: 20100021580
    Abstract: A digital manufacturing system for producing first and second objects comprises a platen, a gantry, a pantograph extrusion head system and first and second sets of extruders. The platen defines a workspace upon which the objects are produced. The gantry defines a headspace displaced from the workspace. The extrusion head system is mounted to the gantry for movement in the headspace. The sets of extruders are connected to the extrusion head system and are configured to deposit extrusion material on the workspace to build the objects. Each set of extruders comprises a first extruder mounted to the extrusion head system; a second extruder mounted to the extrusion head system so as to be actuatable from a first to a second position; and a flexible linkage connecting the extruders. The flexible linkages position the second extruders in approximately equal known spatial relationships to the first extruders in the second positions.
    Type: Application
    Filed: July 25, 2008
    Publication date: January 28, 2010
    Inventors: William J. Swanson, Steven Scott Crump
  • Patent number: 7648658
    Abstract: An alternate polymer extrusion method and system reduces “drool” effects that detract from precise control over the content of two or more materials in an extrudate along its length. In the system, two or more extruders direct melt to two or more gear pumps. Control of the speed of the gear pumps controls the amount of each material emergent from the pumps, proceeding to a convergence in the paths from the pumps and thence to a die. Melt in each path between each pump and the convergence tends to expand and drool into the convergence as its associated pump is slowed and stopped. To prevent this, in the die, a constriction in each path just upstream of the convergence greatly reduces drool past that point by requiring a much greater pressure to force the melt past the constriction. The increased pressure required increases compression and expansion of the melt between the pump and the construction as a pump starts or increases in speed, on one hand, and stop or decreases in speed, on the other hand.
    Type: Grant
    Filed: June 19, 2004
    Date of Patent: January 19, 2010
    Assignee: Harrel, Inc.
    Inventor: Holton E. Harris
  • Publication number: 20090085243
    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: Application
    Filed: September 27, 2007
    Publication date: April 2, 2009
    Applicant: Graham Packaging Company, L.P.
    Inventors: Gregory D. Taylor, Lawrence Korpanty
  • Publication number: 20090074898
    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: Application
    Filed: January 12, 2005
    Publication date: March 19, 2009
    Applicant: TOYO SEIKAN KAISHA, LTD.
    Inventors: Hotaka Fukabori, Tsuneo Imatani, Makoto Etoh, Kazunobu Watanabe
  • Patent number: 7476094
    Abstract: The invention relates to a plastic metering system in a device for producing plastic articles, comprising a metering unit (1) forming a block (2) comprising a material feed duct (10), a metering cavity (4) which may communicate with the said material feed duct (10), a material outlet orifice (5) placed on a wall of the said metering cavity (4), and a valve (3) in the form of a cylindrical rod designed to slide through and close off the said material outlet orifice (5), characterized in that the metering unit (1) furthermore includes a piston (7) mounted so as to slide coaxially around the valve (3) so as to allow the volume of the metering cavity (4) to be varied and the material feed duct (10) to be momentarily closed off. The invention also relates to a method for using the said system.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: January 13, 2009
    Assignee: Aisapack Holding S.A.
    Inventor: Dominique Hanot
  • Patent number: 7374416
    Abstract: The invention provides a method for controlling the width of a plurality of extruded filaments comprising providing a polymer supply and an extrusion die comprising a plurality of extrusion capillaries and a plurality of counterbores allowing fluid communication between the extrusion capillaries and polymer supply, providing an adjustable insert for interrupting fluid communication between the polymer supply and at least one extrusion capillary, providing at least one fluidized polymer, conveying the polymer through the polymer supply, counterbores and extrusion capillaries to extrude a plurality of filaments, and interrupting the fluid communication between the polymer supply and at least one extrusion capillary by adjusting the insert.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: May 20, 2008
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Michael C. Cook, Bryan David Haynes
  • Patent number: 7090797
    Abstract: An extrusion method and an extrusion device, whereby at least two different flows of material are supplied from the extrusion device to a nozzle. The nozzle comprises at least two nozzle chambers such that the material flowing through the first nozzle chamber forms an outer part of a product, and the material flowing through the second nozzle part forms an inner part of the product. The capacity of the nozzle chambers is changed, whereby the relative proportion of the different parts of the product can be varied. When the capacity of the nozzle chamber is decreased, the amount of material flowing therethrough increases at the outlet of the nozzle, and when the capacity of the nozzle chamber is increased, the amount of material flowing out there-through decreases at the outlet of the nozzle.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: August 15, 2006
    Assignee: Conenor Oy
    Inventor: Kari Kirjavainen
  • Patent number: 7001547
    Abstract: A method and apparatus are described for coextruding two materials A and B, in which B is extruded on A through a port (3), in which the separating wall between the flows of A and B is formed as a flap closure (4) adapted to act as a non-return valve for the flow of B into A, and further means are provided for extruding B through the port in pulses. The pulses may be effected by opening and closing the closure, by mechanical transmission means or by the effect of imposing pressure difference on the flap (4) by the flows of A and/or B. The pulsing means preferably involves rams (1). The invention is particularly suitable for extruding a low viscosity material B onto a higher viscosity material A, or for making sheets or pipes with alternating segments of differential flexibility, or for coextruding a flow of solid particles with a flow of liquid.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: February 21, 2006
    Inventor: Ole-Bendt Rasmussen
  • Patent number: 6773255
    Abstract: Multilayer plastic composites containing at least two incompatible plastics, A and B, in which the layering sequence alternates between A and B, the layers of plastic B are discontinued at regular intervals, and the resulting gaps in the layers are filled in with plastic A, exhibit good adhesion between the layers. In preferred embodiments of the invention, the amorphous, crystalline, or semi-crystalline plastic B has a higher coefficient of thermal expansion than the amorphous plastic A. The plastic composite is preferably produced via coextrusion.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: August 10, 2004
    Assignee: Roehm GmbH Chemische Fabrik
    Inventors: Volker Benz, Hans Lorenz, Michael Meier-Kaiser, Michael Müller, Klaus-Ernst Pöhlmann
  • Patent number: 6743006
    Abstract: 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/energy to the die.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: June 1, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Shaffiq Amin Jaffer, Mark Lewis Agerton, Geoffrey Marc Wise
  • Patent number: 6729867
    Abstract: A strip casting device (2) has a casting container (14) from which through a casting gap (15) two different masses (12, 13) of a material flowable with the addition of heat are poured out as a strip (3) onto a cooling device (4). The second mass (13) is at the same time ejected by way of injection nozzles (21, 22) into the region of the casting gap (15) into the casting flow of the first mass (12). The injection nozzles are preferably movable in various directions.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: May 4, 2004
    Assignee: Swiss Caps Rechte und Lizenzen AG
    Inventors: Alois Peter, Andreas Egli
  • Patent number: 6634878
    Abstract: A ground color main extruder 9 which supplies a ground color resin that is to cover a strand conductor 3 is disposed. Plural stripe sub extruders 21 and 31 which supply a colored resin in a strip-like manner in a longitudinal direction of the strand conductor 3 simultaneously with extrusion of the ground color resin are disposed. Insert molds 16 and 17 are multiply disposed. While alternatingly switching over the stripe sub extruders 21 and 31 each time when a colored resin to be supplied is changed, a colored resin of a predetermined color is supplied through a path which is disposed for each of the stripe sub extruders 21 and 31.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: October 21, 2003
    Assignee: Yazaki Corporation
    Inventors: Naoki Yanagawa, Atsushi Kaneko
  • Patent number: 6604336
    Abstract: Complementary roof tiles for a staggered roof tile layout are provided by: (i) extruding and conveying a composite ribbon; (ii) demarcating the composite ribbon into an alternating succession of a first roof tile type and a second roof tile type by engaging the composite ribbon with an upstream cutting blade and a downstream cutting blade, such that each roof tile type is demarcated at an upstream tile edge by one of the cutting blades and at a downstream tile edge by the other of the cutting blades, and such that a selected one of the roof tile types includes a pair of cut-out portions demarcated along one of the upstream and downstream tile edges on opposite ones of the ribbon side edges; (iii) separating the succession of demarcated roof tile types into distinct roof tiles; and (v) curing the distinct roof tiles to form a set of cured roof tiles.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: August 12, 2003
    Assignee: CRH Oldcastle, Inc.
    Inventors: Stanley Sherman Bane, Gary Lee Manlove
  • Patent number: 6561783
    Abstract: An extruding machine for making multi-color mesh belts includes an injection block which has a single material feeding inlet and a material feeding tube which has a plurality of equally spaced material feeding passages. Each feeding passage has a color injection opening which engages with a color injection device. The formed mesh belts may have strips of different colors. The bottom end of the feeding tube may engage with a dividing block for controlling melting degree of the injecting color material.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: May 13, 2003
    Inventor: Wei-Ling Hsu
  • Publication number: 20020167103
    Abstract: The invention relates to a method for introducing additives into flowing or fluidized media. The spatially predetermined position of the additives in the flowing material, also called fluid bed, is obtained by controlling the pulsating injection, The introduction and exact dosing of additives, that is hardeners, dyes, gas producers and softener for instance, into a liquid plastic stream or metal stream (10) for instance or the fluid bed of bulk material, such as powder, granules and pellets, is carried out by means of an injector. The invention is used in melting units, in hot channel systems, in tools, componens of tools and injection moulding machines, extruder-, injection moulding-, pelleting-, burner- and injection arrangements.
    Type: Application
    Filed: September 8, 2001
    Publication date: November 14, 2002
    Inventor: Georg Michael Ickinger
  • Patent number: 6477944
    Abstract: A molding device for pastry products includes an upper rotary disc, a set of cutting tools and a central through hole formed at the front aspect of a cutting edge portions of a plurality of cutting tools; wherein the intermittently obverse and reverse rotations of the upper rotary disc on a bottom disc drives a front moving rod to displace in a long through hole and makes a rear moving rod rotate in obverse and reverse directions in a circular through hole so as to further work as a rotary shaft thereby enabling the cutting edge portions of pluralities of cutting tools synchronously to close or open the central through hole with more precise carry-over moment to achieve the effect of opening and closing the central through hole more precisely and steadily for ensuring a consistent shape of a cut noodle or a molded food product.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: November 12, 2002
    Inventor: Robert Ou-Young