Stirrer Is Through-pass Screw Conveyor Patents (Class 366/79)
  • Patent number: 10239249
    Abstract: An Extruder for shaping a viscous material such as a blend of rubber is disclosed herein. The extruder includes a screw rotationally driven about an axis (XX?) in a barrel and bearing one or more helical flights extending radially outwards from a central shaft of the screw, the extruder comprising a material homogenization zone (H) through which a screw portion comprising interrupted flight elements forming empty annular spaces extends axially, and a barrel portion delimiting the said homogenization zone bearing flight elements extending radially inwards into the said empty annular spaces. According to the disclosure, the barrel portion delimiting the homogenization zone is itself rotationally driven about the axis XX? to form a rotary barrel.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: March 26, 2019
    Assignees: Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique, S.A.
    Inventors: Fabien Vignon, Jean-Francois Lhospitalier
  • Patent number: 9565803
    Abstract: A machine part for agricultural, turf, mining or construction equipment for processing material is provided. The machine part comprises a base material. A clad material is deposited on the base material to form at least one blunt edge along the body. The clad material comprises a second hardness greater than the first hardness.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: February 14, 2017
    Assignee: Kondex Corporation
    Inventor: Keith A. Johnson
  • Patent number: 9321886
    Abstract: A silane compound is represented by Formula 1: wherein each R1 is independently a single bond, an ether group, a carbonyl group, a thioether group, a sulfone group, or a substituted or unsubstituted C1 to C20 hydrocarbon group, R2 and R3 are each independently a substituted or unsubstituted C1 to C20 hydrocarbon group, each R4 is independently hydrogen or a C1 to C5 hydrocarbon group, each X is independently halogen, a hydroxyl group, C1 to C20 alkoxy, or C6 to C20 aryloxy, each Y is independently a single bond, an amide group, a thioester group, a hydroxyethylene group, a carbonyl group, an aromatic group or an ester group, a and b are each independently an integer from 1 to 3, a+b is 4, no is an integer from 0 to 5, n is an integer from 5 to 50, and p and q are each independently an integer from 0 to 4.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: April 26, 2016
    Assignee: Cheil Industries Inc.
    Inventors: Su Hak Bae, Sung Hee Ahn, Hyun Joo Han, Ha Na Ra, Hyun Ho Lee
  • Publication number: 20150148932
    Abstract: A device for checking the construction of an extruder screw having a shaft and screw elements that are to be pushed or have been pushed one after the other onto the shaft in a defined sequence. Each screw element has an element-specific external geometry. A recording device being provided for determining information concerning the sequence of the screw elements that are to be pushed on or have been pushed on and for comparing the information determined with target information, which directly or indirectly describes the target sequence.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventors: Frank RECHTER, Sven WOLF
  • Publication number: 20150131399
    Abstract: Systems and methods for controlling the temperature of a solid-state screw extruder may include providing an extrusion screw that incorporates one or more screw shaft channels. The shaft channels may be configured to conduct a flow of a heat conducting medium along a length of the shaft. The shaft channels may be incorporated into an exterior surface or within the body of the screw shaft. The extruder may include extrusion screw elements in mechanical communication with the shaft. Each of the elements may further include one or more element channels also configured to conduct a flow of the medium. The shaft channels and the element channels may be disposed to permit a flow of the medium therebetween. The temperature of the extrusion screws and/or screw elements may be controlled by circulating the medium from a source, through the shaft and element channels, and back to the source.
    Type: Application
    Filed: November 10, 2014
    Publication date: May 14, 2015
    Inventors: Philip BRUNNER, Mark TAPSAK
  • Publication number: 20150108696
    Abstract: The molded article includes a resin composition with a single shaft extruder, in which the resin composition is generated by melting and mixing a raw mixture, the raw mixture being obtained by blending 40-90 parts by mass of the polyolefin (A), 3-30 parts by mass of the metaxylylene group-containing polyamide (B), and 3-50 parts by mass of the modified polyolefin (C). In the single shaft extruder, the ratio of the length of the feeding part to the screw effective length is 0.40-0.55, the ratio of the length of the compressing part to the screw effective length is 0.10-0.30, the ratio of the length of the measuring part to the screw effective length is 0.10-0.40, the upper limit of the temperature of the feeding part falls within the range of +20° C. from the melting point of the metaxylylene group-containing polyamide or less, and the temperatures of the compressing part and the measuring part fall within the range of ?30° C. to +20° C.
    Type: Application
    Filed: November 7, 2014
    Publication date: April 23, 2015
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC
    Inventors: Kenji KOUNO, Ryoji OTAKI
  • Patent number: 8975336
    Abstract: It is an object of the present invention to obtain an optically transparent nano-dispersed polymer blend extrudate and a transparent resin having a microscopic dispersion structure in which incompatible polymer blend is melted and kneaded, one of resins is formed into a matrix, a size of dispersed phase of the other resin is controlled to 300 nm or less, more preferably 100 nm or less. Extra additive such as a compatibilizer is not added. When the incompatible polymer blend is melted and kneaded using a high shearing and forming apparatus having an inner feedback type screw under a condition that the screw rotation speed is 600 rpm to 3000 rpm, the rotation speed of the inner feedback type screw is increased, the kneading time is set under constant rotation speed, the high shearing forming condition is adjusted, and a structure in which a size of dispersed phase is controlled to 300 nm or less, more preferably 100 nm or less is formed.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: March 10, 2015
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Hiroshi Shimizu, Yongjin Li
  • Publication number: 20150011691
    Abstract: The present invention is related to a method for producing a resin composition including feeding a resin (A), a fibrous filler (B), and a particulate filler (C) which is harder than the fibrous filler (B) to an extruder, and melt-kneading to extrude a kneaded material, the resin composition comprising a fibrous filler (B) which is 140 ?m or less in weight average fiber length. According to the present invention, a production method with high versatility is provided in which a resin composition containing the fibrous filler having the weight average fiber length of 140 ?m or less is effectively produced.
    Type: Application
    Filed: December 21, 2012
    Publication date: January 8, 2015
    Inventors: Satoshi Sekimura, Hiroshi Harada, Koichi Mizumoto
  • Patent number: 8870442
    Abstract: A plastication screw (1) comprises a shank (2) extending along a rectilinear axis (3), a feeding region (4) to supply a product to be plasticated, a plastication region (5) placed immediately downstream of the feeding region (4), relative to a main feeding direction (S) of the product along the axis (3) of the shank (2), at least one primary thread (7) extending in a helical development around the shank (2) at least in the plastication region (5), following a predetermined winding direction (V), and at least one secondary thread (10) extending in a helical development around the shank (2) in the same way as said predetermined winding direction (V), in at least part of the plastication region (5). The primary thread (7) and the secondary thread (10) each have a varying pitch (p1, p2). The pitch variation (p2) of the secondary thread (10) is greater than the pitch variation (p1) of the primary thread (7).
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: October 28, 2014
    Assignee: M.R.S. Italia S.R.L.
    Inventor: Francesco Sant'Elia
  • Publication number: 20140312151
    Abstract: Disclosed is an apparatus for processing plastics, having a mixing implement rotatable around an axis of rotation, wherein, in a side wall, an aperture is formed, through which the plastics material is removed, a conveyor being provided, with a screw rotating in a housing wherein the imaginary continuation of the longitudinal axis of the conveyor in a direction opposite to the direction of conveying passes the axis of rotation, and on the outflow side, an offset distance between the longitudinal axis and the radial that is parallel to the longitudinal axis, and the diameter D of the container has the following relationship to the diameter d of the screw: D=10·3?{square root over (K·d2)}, where D is the internal diameter in mm of the container d is the diameter in mm of the screw and K is a constant which is in the range from 60 to 180.
    Type: Application
    Filed: October 12, 2012
    Publication date: October 23, 2014
    Inventors: Klaus Feichtinger, Manfred Hackl
  • Publication number: 20140299700
    Abstract: Disclosed in an apparatus for the processing of plastics, with a container with a rotatable mixing implement, wherein a conveyor being provided, with a screw rotating in a housing, wherein the imaginary continuation of the longitudinal axis of the conveyor in a direction opposite to the direction of conveying passes the axis of rotation, there being, on the outflow side, an offset distance between the longitudinal axis and the radius that is parallel to the longitudinal axis, and wherein the smallest possible distance (ms) between the implement and screw is described by the following relationship: ms?k*d+K, where d is the diameter of the screw in mm, K is a factor in the range from 20 to 100, more particularly 20 to 80, k is a factor in the range from 0.03 to 0.4, more particularly 0.04 to 0.25.
    Type: Application
    Filed: October 12, 2012
    Publication date: October 9, 2014
    Inventors: Klaus Feichtinger, Manfred Hackl
  • Publication number: 20140291427
    Abstract: Disclosed is an apparatus for the pretreatment and subsequent conveying or plastification of plastics, with a container with a mixing and/or comminution implement that is rotatable around an axis of rotation, wherein, in a side wall, an aperture is formed, through which the plastics material can be removed, a conveyor being provided, with a screw rotating in a housing. The invention is characterized in that the imaginary continuation of the longitudinal axis of the conveyor in a direction opposite to the direction of conveying passes the axis of rotation, there being, on the outflow side, an offset distance between the longitudinal axis and the radius that is parallel to the longitudinal axis, that the L/D ratio of the screw is ?7, and that the compressing format of the screw begins only from a distance (A) of more than 1.5 times the diameter (d) of the screw.
    Type: Application
    Filed: October 12, 2012
    Publication date: October 2, 2014
    Applicant: Enema Engineering Recycling Maschinen und Anlagen Gesellschaft M.B.H.
    Inventors: Klaus Feichtinger, Manfred Hackl
  • Patent number: 8827538
    Abstract: An extruder barrel section is disclosed. The extruder barrel section comprises of a first barrel pad and a second barrel pad. The first and second barrel pad co-operating to define a recess configured to receive an extruder liner. The length of the first and second barrel pad is less than the length of the extruder liner such that the extruder liner defines an end surface that projects beyond the extruder barrel section on at least one side. The end surface is configured to abut the end surface of another extruder liner. The extruder barrel section further comprises of a locking structure configured to lock the first barrel pad to the second barrel pad with the extruder liner therebetween.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: September 9, 2014
    Assignee: Steer Engineering Private Limited
    Inventor: Babu Padmanabhan
  • Patent number: 8794819
    Abstract: Extruders for processing material have a selectively variable extruder volume. The extruders include an extruder barrel containing a bore sized to process 5 to 50 grams of material, wherein the bore has an upstream inlet portion for feeding the material to be processed and a downstream outlet portion connectable to an extruder exit for material processed through the extruder, and at least two recycle channels which differ from one another in at least one of volume, area of cross-section and length. A diverter valve of a flow control system is positioned at the outlet of the extruder for controllably directing material flow from the bore to either the extruder exit or at least one of at least two recycle channels.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: August 5, 2014
    Assignee: Xplore Instruments B.V.
    Inventor: Johannes Ijsbrand Tiesnitsch
  • Patent number: 8721324
    Abstract: An injection device may include an injecting portion, and a material feeding portion having a pelletized resinous material. The material feeding portion includes a cylindrical feeding passage that is communicated with the injecting portion, a screw that is disposed in the feeding passage, and a drive mechanism that is configured to rotate the screw about a rotational axis. When the screw is rotated about the rotational axis by the drive mechanism, the pelletized resinous material can be fed into the injecting portion.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: May 13, 2014
    Assignee: Kojima Press Industry Co., Ltd.
    Inventors: Kensuke Suenami, Tsuyoshi Inoue
  • Patent number: 8678637
    Abstract: An extruder screw includes a screw shaft with several screw elements which can be or have been detachably slipped onto this shaft, the screw shaft having an external gearing and the screw elements having an internal gearing which engage the external gearing. The profile of the teeth of the external and the internal gearing are asymmetric, whereby in relation to a preferred direction of rotation of the extruder screw, the torque-transferring flanks of the teeth of the external and the internal gearing make a smaller angle with the perpendicular to the axis of rotation than do respective opposing flanks, at the teeth, of the external and internal gearing.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: March 25, 2014
    Assignee: Leistritz Aktiengesellschaft
    Inventors: Peter Dietz, Guenter Schaefer, Ilaka Mupende, Cem Turan, Wolfgang Walter, Guenther Rduch
  • Publication number: 20140069778
    Abstract: A restored metallic extrusion processing element comprises a tubular metal core around which is consolidated a powdered metal extrusion component that includes metallurgically bonded interior shell and exterior working portions. The interior shell portion covers the core and is characterized by a first multiple-crystalline microstructure, and the exterior working portion is characterized by a second multiple crystalline microstructure of densified powdered metal particles. The exterior working portion has an outside surface including outer working surface features that extend along the length of the extrusion processing element. A bond interface of metallurgical type defines a crystalline microstructure boundary between the first and second multiple-crystalline microstructures.
    Type: Application
    Filed: November 15, 2013
    Publication date: March 13, 2014
    Applicant: Entek Manufacturing LLC
    Inventors: Craig Benjamin, Larry Keith
  • Patent number: 8500433
    Abstract: A screw machine, in particular an extruder, has a housing which has a supply opening at a supply end. At least one bore with a longitudinal axis is provided, in which a screw shaft is rotatably arranged. The drive takes place by means of a drive motor using a gear, the output shaft of which has a rotary drive connection to the screw shaft. Provided between the housing and the gear is a slide connection, which allows a displacement of the housing relative to the gear in the direction of the longitudinal axis.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: August 6, 2013
    Assignee: Coperion GmbH
    Inventor: Ralf Riehle
  • Publication number: 20130163369
    Abstract: A kneading apparatus includes a plasticizing cylinder in which a high pressure kneading zone and a pressure reduction zone are formed adjacently in this order from an upstream side so that a molten resin obtained by plasticizing a thermoplastic resin and a pressurized fluid are kneaded with each other in the high pressure kneading zone, and gasified pressurized fluid, which is gasified by reducing a resin internal pressure, is separated in the pressure reduction zone from the molten resin kneaded with the pressurized fluid, a screw which is arranged rotatably and movably back and forth in the plasticizing cylinder; and a downstream side seal mechanism which is provided between the high pressure kneading zone and the pressure reduction zone and which makes communication and disconnection between the high pressure kneading zone and the pressure reduction zone in accordance with a rotation state of the screw.
    Type: Application
    Filed: February 15, 2013
    Publication date: June 27, 2013
    Applicant: HITACHI MAXELL, LTD.
    Inventor: HITACHI MAXELL, LTD.
  • Patent number: 8440124
    Abstract: Single screw extruder for making a dryer bar.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: May 14, 2013
    Assignee: The Procter & Gamble Company
    Inventors: Corey James Kenneally, Robb Richard Gardner, Fleumingue Jean-Mary, Thomas Edward Dufresne, Darren Paul Trokhan, Barry Michael Beagle, Scott Comstock, Kurt Goris Houk
  • Publication number: 20130099424
    Abstract: The present techniques provide an extruder screw comprising a high shear melting and mixing zone starting a distance away from an entry point of the screw corresponding to 35%-50% of the overall screw L/D. The extruder screw may also include elements capable of increasing a degree of fill of the high shear melting and mixing zone. In accordance with present techniques, the extruder screw is configured to blend two or more polyolefin polymers having greater than about a 200,000 difference in weight-average molecular weight in a single extrusion step. The extruder screw of the present techniques may be used in a single screw or twin screw extruder, and may be incorporated into a polyolefin production plant for producing multi-modal resins.
    Type: Application
    Filed: October 25, 2011
    Publication date: April 25, 2013
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Vivek Rohatgi, Ashish M. Sukhadia
  • Publication number: 20130099421
    Abstract: A plasticizing screw for injection molding according to the present invention is installed in an injection molding machine that performs injection molding by plasticizing thermoplastic resin feedstock containing reinforcement fibers, and includes a shaft, a main flight, and a sub-flight. The protrusion height of the main flight from the circumferential surface of the shaft is formed to be constant in at least an area in which the sub-flight is provided.
    Type: Application
    Filed: October 25, 2010
    Publication date: April 25, 2013
    Applicant: MITSUBISHI HEAVY INDUSTRIES PLASTIC TECHNOLOGY CO. LTD
    Inventors: Toshihiko Kariya, Naoki Toda, Munehiro Nobuta
  • Publication number: 20130010566
    Abstract: The kneading apparatus 1 includes a casing 2, a pair of elongated screws 4a, 4b rotatably provided in the casing 2. The screws 4a, 4b are arranged parallel and horizontally with respect to one another. The casing 2 has a main body 20 and a screw container 3 provided in the casing 2. The screw container 3 defines a kneading section 30 therein. The screw 4a includes a screw axis 41 having an outer periphery, a first screw member 42 provided on the outer periphery of the screw axis 41 and a kneading member 43 provided on the outer periphery of the screw axis 41. The first screw member 42 and kneading member 43 are provided in the kneading section 30. The screw 4a, the first screw member 42 and the kneading member 43 respectively have core portions 411, 412, 413 having a surface and outer layers 45 respectively provided on the surfaces of the core portions 411, 412, 413. The screw container 3 and the outer layers 45 are constituted of a nonmetallic material.
    Type: Application
    Filed: March 2, 2011
    Publication date: January 10, 2013
    Applicant: SUMITOMO BAKELITE COMPANY LIMITED
    Inventors: Shigehisa Ueda, Kazuo Noda
  • Patent number: 8267149
    Abstract: A method of processing metal, metallic alloys, and metal matrix composites in a plastics injection molding machine is disclosed. The method includes the steps of providing a plastics injection molding machine having a screw. A step of removing the screw is included in the method. A step of replacing the screw with a modified screw configured and arranged for processing metals is also included. Alternatively, a step of removing the flights from the middle portion of the original screw shaft may be included.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: September 18, 2012
    Assignee: Cool Options, Inc.
    Inventor: Kevin A McCullough
  • Patent number: 8246240
    Abstract: Improved single screw extruders systems (40) are provided including a single screw extruder (42, 92) as well as an upstream preconditioner (44). The extruders (42, 92) include a single, internal, elongated, helically flighted, axially rotatable screw assembly (52) having one or more improved screw sections (74, 74a, 76). The screw sections (74, 74a, 76) include specially configured flighting (86) wherein adjacent flighting portions (86a, 86b) have smoothly arcuate surfaces (88) extending between the respective flighting portion peripheries (90a, 90b). This flighting design provides smooth, substantially surge-free operation while increasing SME and cook values. The preferred preconditioner (44) has independently controlled mixing shafts (106, 108) allowing the shafts (106, 108) to be rotated at different rotational speeds and/or directions.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: August 21, 2012
    Assignee: Wenger Manufacturing, Inc.
    Inventor: LaVon Wenger
  • Patent number: 8231375
    Abstract: An apparatus for wet granulating a powder material comprises:—a barrel having a granulation chamber and being provided with a first inlet (1) for receiving said powder material and for supplying it to said granulation chamber and with a second inlet (2) for receiving a granulating liquid and for supplying it to said granulation chamber, said granulation having an aperture (9) for discharge of granules from said barrel, and—a transporting means (S) for advancing said powder material toward the end of said granulation chamber while granulating it with the aid of said granulating liquid, said transporting means (S) comprising a first transport zone (4) at its rear end, an agglomeration zone (5) downstream from the first transport zone (4) and a second transport zone (8) at its front end, said first inlet (1) and said second inlet (2) being positioned above the first transport zone (4), wherein said aperture (9) has a shape tightly fitting the terminal portion of the transporting means (S) for directly dischargin
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: July 31, 2012
    Assignee: Universiteit Gent
    Inventors: Jean-Paul Remon, Chris Vervaet, Eseldin Keleb, An Vermeire
  • Patent number: 8231264
    Abstract: Extruder (1) for processing material, comprising an extruder barrel (3) containing a bore (5) and at least one extruder screw (11) positioned within said bore, the bore having an upstream inlet portion for feeding the material to be processed and a downstream outlet portion connectable to an extruder exit (7) for material processed through the extruder, the at least one extruder screw has a length:diameter ratio of less than 20:1, the extruder further comprising at least one recycling channel (13, 15) running through the barrel from the outlet portion of the bore and at least two recycling exits (19, 21, 23) that connect a recycling channel to the bore upstream of the outlet portion by and further comprising means for directing the material through the at least one recycling channel and the recycling exits and/or the extruder exit.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: July 31, 2012
    Assignee: DSM IP Assets B.V.
    Inventor: Johannes Ijsbrand Tiesnitsch
  • Patent number: 8172449
    Abstract: To provide a kneading screw which can reduce such a phenomenon that a disproportional load is imposed onto a shaft of the kneading screw without degrading kneading performance of the kneading screw, a twin screw extruder with the kneading screw, and a method for assembling the kneading screw.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: May 8, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Yasuaki Yamane, Kazuo Yamaguchi, Toru Sakatani, Sayaka Yamada, Kazuhisa Fukutani, Koichi Honke
  • Patent number: 8167478
    Abstract: A kneading screw is disclosed which comprises a screw body, the screw body comprising a feed section and a kneading section, the feed section comprising screw segments for feeding a to-be-kneaded material to a downstream side and the kneading section comprising kneading segments for kneading the material. The screw body is provided within the kneading section with a multi-stage portion which gradually changes axially in rotating outside diameter. It is preferable that the multi-stage portion be constituted by kneading segments of plural kneading discs different in rotating outside diameter. With such a construction, it is possible to avoid stress concentration on an axial part of the kneading screw and thereby prevent breaking of a spline shaft and abnormal wear of kneading flights.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: May 1, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Yutaka Narukawa, Yoshimitsu Tanaka
  • Publication number: 20120077889
    Abstract: A method for producing thermoplastic elastomer is disclosed and comprises the step of: blending a mixture including particles of vulcanized rubber material and a molten thermoplastic material such that the rubber material is subjected to mechanical shearing forces and the surfaces of the rubber particles undergo homolytic bond scission to form chains of free radicals which cross-link with the thermoplastic material. Apparatus for carrying out the method, elastomers produced by the method and articles produced from the elastomers are also disclosed.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 29, 2012
    Inventor: Neal A. Evans
  • Patent number: 8142899
    Abstract: To provide a heat-resistant resin composition which has excellent heat resistance, does not show a reduced mechanical strength such as flexural strength even after being passed rough a reflow furnace and heat-treated under high temperature conditions, and also has an excellent flame retardancy; a production method of the heat-resistant resin composition; a heat-resistant resin-molded article; and a surface mount electronic component. The heat-resistant resin composition includes a polyarylene sulfide resin (A) and an aromatic polyamide (B) having terephthalic acid amide as an essential structural unit at a former/latter ratio of 70/30 to 95/5 by mass. In a molded article composed of the heat-resistant resin composition, the average diameter of holes formed by etching a broken-out section of the molded article with an organic solvent is 0.1 to 1.0 ?m, where the broken-out section is observed on a scanning electron microscope (2,500 times).
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: March 27, 2012
    Assignee: DIC Corporation
    Inventor: Yasuyuki Yoshino
  • Patent number: 8142066
    Abstract: A mixing device for synthetic leather to joint with a solid powder material includes a material mixing unit and a stirring and conveying unit. The material mixing unit includes a mixing body and two feeders. The mixing body is connected with the two feeders and has a mixing chamber therein which is intercommunicated with the two feeders. The stirring and conveying unit is connected with the material mixing unit and has a stirring and conveying chamber therein which is intercommunicated with a solid material container and the mixing chamber. Thereby, a solid powder material, a first material and a second material are respectively disposed in the solid material container and the feeders, and then guided into the mixing chamber to be well mixed for forming a mixture. The mixture is manufactured to form synthetic leather containing the solid powder material.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: March 27, 2012
    Inventor: Lung-Wen Chou
  • Patent number: 8132957
    Abstract: The kneading disc segment according to the present invention comprises plural disc sets each comprising two kneading discs and mounted on a kneading screw (3) which is for kneading a material while feeding the material to a downstream side. Disc sets each comprising a first kneading disc positioned on an upstream side and a second kneading disc, the second kneading disc being mounted continuously with and downstream of the first kneading disc so as to have a phase difference ? of an acute angle relative to the first kneading disc, are disposed continuously in the axial direction of the kneading screw. The first kneading discs in two continuous disc sets have a phase difference of 180°. With this construction, it is possible to attain a higher degree of kneading than in the conventional neutral kneading disc segment.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: March 13, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Kazuhisa Fukutani, Sayaka Yamada, Yasuaki Yamane, Kazuo Yamaguchi
  • Patent number: 8113814
    Abstract: A system for clamping together a pair of extruder barrel sections of an extruder is disclosed. The system comprises of a clamp that includes an upper arm, and a lower arm connected to the upper arm at one edge of the upper arm. The upper and lower arms cooperating to define a recess configured to receive a pair of extruder barrel sections. The clamp further includes a locking structure configured to lock the upper arm to the lower arm with the pair of extruder barrel sections therebetween. The system further comprises of a support structure for the clamp that includes a bracket connected to the clamp and a column connected to a base of the extruder. The bracket and column are connected to each other such that relative movement between the bracket and the column is permitted axially along the extruder barrels sections. An extruder is also disclosed.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: February 14, 2012
    Assignee: Steer Engineering Private Limited
    Inventors: Babu Padmanabhan, Arunajatai Viswanathan
  • Publication number: 20110317510
    Abstract: A restored metallic extrusion processing element comprises a tubular metal core around which is consolidated a powdered metal extrusion component that includes metallurgically bonded interior shell and exterior working portions. The interior shell portion covers the core and is characterized by a first multiple-crystalline microstructure, and the exterior working portion is characterized by a second multiple crystalline microstructure of densified powdered metal particles. The exterior working portion has an outside surface including outer working surface features that extend along the length of the extrusion processing element. A bond interface of metallurgical type defines a crystalline microstructure boundary between the first and second multiple-crystalline microstructures.
    Type: Application
    Filed: June 23, 2010
    Publication date: December 29, 2011
    Applicant: Entek Manufacturing, Inc.
    Inventors: Craig Benjamin, Larry Keith
  • Publication number: 20110282006
    Abstract: It is an object of the present invention to obtain an optically transparent nano-dispersion polymer blend extrudate and a transparent resin having a microscopic dispersion structure in which incompatible polymer blend is melted and kneaded, one of resins is formed into a matrix, a size of dispersed phase of the other resin is controlled to 300 nm or less, more preferably 100 nm or less. Extra additive such as a compatibilizer is not added. When the incompatible polymer blend is melted and kneaded using a high shearing and forming apparatus having an inner feedback type screw under a condition that the screw rotation speed is 600 rpm to 3000 rpm, the rotation speed of the inner feedback type screw is increased, the kneading time is set under constant rotation speed, the high shearing forming condition is adjusted, and a structure in which a size of dispersed phase is controlled to 300 nm or less, more preferably 100 nm or less is formed.
    Type: Application
    Filed: November 26, 2009
    Publication date: November 17, 2011
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Hiroshi Shimizu, Yongjin Li
  • Patent number: 7963214
    Abstract: The present invention is directed to improved preconditioners (12) especially useful for the production of high meat-content pet foods. The preconditioners (12) include an elongated housing (16) with one or more elongated, axially rotatable mixing shafts (18, 20) therein, each having a plurality of outwardly extending mixing elements (42, 44). The preconditioner (12) is provided with apparatus (56) for directing relatively large quantities of heated non-steam gas into the preconditioner (12) in lieu of most or all of the steam normally used with preconditioners. This serves to heat material passing through the preconditioner (12) without the addition of substantial moisture.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: June 21, 2011
    Assignee: Wenger Manufacturing, Inc.
    Inventors: Marc Wenger, Dennis H. Baumgartner
  • Publication number: 20110082244
    Abstract: The invention provides a golf ball material which is a resin mixture composed of (a) an olefin-unsaturated carboxylic acid copolymer and/or an olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester copolymer having a weight-average molecular weight (Mw) of from 120,000 to 200,000 and a weight-average molecular weight (Mw) to number-average molecular weight (Mn) ratio of from 4.3 to 6.6 or a metal neutralization product thereof, (b) an olefin-unsaturated carboxylic acid copolymer and/or an olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester copolymer having a weight-average molecular weight (Mw) of from 120,000 to 200,000 and a weight-average molecular weight (Mw) to number-average molecular weight (Mn) ratio of from 6.8 to 9.
    Type: Application
    Filed: November 30, 2010
    Publication date: April 7, 2011
    Applicant: BRIDGESTONE SPORTS CO., LTD.
    Inventors: Kae Iizuka, Eiji Takehana
  • Publication number: 20110063939
    Abstract: An extruder barrel section is disclosed. The extruder barrel section comprises of a first barrel pad and a second barrel pad. The first and second barrel pad co-operating to define a recess configured to receive an extruder liner. The length of the first and second barrel pad is less than the length of the extruder liner such that the extruder liner defines an end surface that projects beyond the extruder barrel section on at least one side. The end surface is configured to abut the end surface of another extruder liner. The extruder barrel section further comprises of a locking structure configured to lock the first barrel pad to the second barrel pad with the extruder liner therebetween.
    Type: Application
    Filed: September 15, 2010
    Publication date: March 17, 2011
    Applicant: Steer Engineering Private Limited
    Inventor: Babu Padmanabhan
  • Publication number: 20110059198
    Abstract: An extruder 10 comprises a barrel 12 and a screw 24 mounted in the barrel for rotation. The screw comprises screw threads 26a, 26b, 26c. The barrel has an inlet funnel 22 toward one end for material to be extruded and a die plate 18 with openings 20 at the other end and an air inlet port 28 toward one end of the barrel and an air outlet port 30 toward the other end. The screw threads are such that material 34 in the barrel is moved more quickly along the portion of the barrel between the air inlet port and the air outlet port than upstream of that portion. The air outlet is connected to a pump 32 so that there is a pressure difference between the air inlet and the air outlet.
    Type: Application
    Filed: July 3, 2003
    Publication date: March 10, 2011
    Applicant: MARS INCORPORATED
    Inventors: Karina Wehrle, Christopher Abbott, Kamyar Nabavi, Peter Gibbs
  • Publication number: 20110051544
    Abstract: A device for mixing and/or kneading food products. The device includes a container having an inlet, an outlet, and at least one rotary shaft extending substantially in a longitudinal direction of the container. The at least one rotary shaft includes at least one tool, the at least one tool including at least one bar connected to the at least one rotary shaft via spacers. The at least one rotary shaft further includes an operative area to continuously mix and/or knead the food products, the operative area extending in a longitudinal direction of the at least one rotary shaft.
    Type: Application
    Filed: January 26, 2009
    Publication date: March 3, 2011
    Applicant: SOTEC BEHEER TWEE B.V.
    Inventors: Gilis Anne Maria Victor Lekner, Marinus Arie Van Praag
  • Patent number: 7866876
    Abstract: The invention relates to a device for the extrusion of thermoplastic synthetic material featuring an extruder screw (2) which is mounted on a housing (1) including a plasticizing section (P) at the inlet side, a degassing section which is mounted upstream on a discharge section (A) and a conveying outlet (3) operating in the opposite direction which is located between the plasticizing section (P) and the degassing section (E). A flow channel (5) that contains a melt filter (4) is bridged over by at least one of the conveying outlets (3) in the opposite direction. To create favorable production conditions, the extruder screw (2) forms a similar conveying outlet (7) operating in the same direction between the conveying outlet (3) in the opposite direction and the downstream port (6) of the flow channel (5). The housing (1) has at least one degassing vent (8) at the transition area of the conveying outlet (3) operating in the opposite direction and the conveying outlet (7) operating in the same direction.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: January 11, 2011
    Assignee: EREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H.
    Inventor: Helmuth Schulz
  • Publication number: 20100296361
    Abstract: Methods of extruding polyurethane composite materials are described. One method includes introducing at least one polyol and inorganic filler to a first conveying section of the extruder, transferring the at least one polyol and inorganic filler to a first mixing section of an extruder, mixing the at least one polyol and the inorganic filler in the first mixing section, transferring the mixed at least one polyol and inorganic filler to a second conveying section of the extruder, introducing a di- or poly-isocyanate to the second conveying section, transferring the mixed at least one polyol and inorganic filler and the di- or poly-isocyanate to a second mixing section, mixing the mixed at least one polyol and inorganic filler with the di- or poly-isocyanate in the second mixing section of the extruder to provide a composite mixture, and transferring the composite mixture to an output end of the extruder. Other related methods are also described.
    Type: Application
    Filed: February 23, 2010
    Publication date: November 25, 2010
    Applicant: CENTURY-BOARD USA, LLC
    Inventor: Wade H. Brown
  • Publication number: 20100271901
    Abstract: The degree of kneading of a material to be kneaded is to be capable of being adjusted with a high accuracy. A kneading degree adjusting mechanism is installed in a processing apparatus having a barrel and a kneading screw inserted into the barrel rotatably, the kneading screw having a kneading section and being adapted to rotate within the barrel to knead a material continuously while feeding the material from an upstream side toward a downstream side, the kneading degree adjusting mechanism including a push-back section for pushing back the material to the upstream side and thereby making the material stay around the kneading section, the push-back section being disposed downstream of the kneading section in the kneading screw, a kneading degree adjusting member having an opposed surface opposed to an outer periphery surface of the push-back section, and a drive section for actuating the kneading degree adjusting member so that the opposed surface moves toward and away from the push-back section.
    Type: Application
    Filed: October 31, 2008
    Publication date: October 28, 2010
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Kazuo Yamaguchi, Yasuaki Yamane, Katsunori Takahashi, Taiji Orimo, Sayaka Yamada, Kazuhisa Fukutani
  • Patent number: 7771111
    Abstract: A liquid phase continuous reactor which includes a screw rotatably disposed within a barrel and defining a mixing zone therebetween whereby the relative rotation of the screw with respect to the barrel is adapted to axially transport materials disposed between the screw and the barrel while mixing the components wherein the land surface area between the spiral groove forms at least 50% of the surface area of the screw in a mixing zone.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: August 10, 2010
    Assignee: Ceramic Fuel Cells Limited
    Inventor: Manh Hoang
  • Publication number: 20100110823
    Abstract: The apparatus and method that best results in low shear to melt shear-sensitive materials, such as polyethylene terephthalate, polyvinylchloride, acrylonitrile butadiene styrene, acrylics and/or resins with fiber fillers, without sacrificing process speed and/or cycle time, comprises the use of a barrel, screw and induction heating coil. The screw, in this case, preferably includes a low volumetric compression ratio, a relatively short feed section, an extended transition section, and a typical metering section.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 6, 2010
    Inventors: Timothy W. Womer, Bruce F. Taylor, Walter S. Smith, Luke M. Miller
  • Patent number: 7686604
    Abstract: A screw for injection molding provides a coaxial piston that allows the effective cross-sectional area of the screw to be varied during the injection cycle permitting small shot metering with relatively large diameter injection molding screws. The screw is positioned within the injector barrel of a injection molding assembly and includes a number of threads disposed around its outer surface configured to advance molten plastic to the front of the barrel. The screw further includes a central bore having a piston slidably received within the central bore. The plastic shot to be forced out through the nozzle of the injection molding assembly is controlled by movement of the piston within the screw.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: March 30, 2010
    Assignee: MGS Mfg. Group, Inc.
    Inventor: John J. Hahn
  • Publication number: 20090181234
    Abstract: To provide a heat-resistant resin composition which has excellent heat resistance, does not show a reduced mechanical strength such as flexural strength even after being passed rough a reflow furnace and heat-treated under high temperature conditions, and also has an excellent flame retardancy; a production method of the heat-resistant resin composition; a heat-resistant resin-molded article; and a surface mount electronic component. The heat-resistant resin composition includes a polyarylene sulfide resin (A) and an aromatic polyamide (B) having terephthalic acid amide as an essential structural unit at a former/latter ratio of 70/30 to 95/5 by mass. In a molded article composed of the heat-resistant resin composition, the average diameter of holes formed by etching a broken-out section of the molded article with an organic solvent is 0.1 to 1.0 ?m, where the broken-out section is observed on a scanning electron microscope (2,500 times).
    Type: Application
    Filed: December 26, 2006
    Publication date: July 16, 2009
    Applicant: DIC CORPORATION
    Inventor: Yasuyuki Yoshino
  • Publication number: 20090162476
    Abstract: A system and method for mixing and forming gum structures is provided. The system may include combinations of continuous and batch mixers arranged generally in parallel and/or series for mixing gum base ingredients with subsequent gum ingredients. In one embodiment, the system and method first forms a gum structure that is not a gum base and then adds a subsequent gum ingredient such that the gum structure is less than a gum base in combination with a subsequent gum ingredient. In other embodiments, the system and method includes forming a gum base in addition to some subsequent gum ingredients that are not quite finished gum. Further, in other embodiments, the system and method may perform some of the mixing of the ingredients at a first location while mixing of further ingredients is performed at a remote location.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 25, 2009
    Applicant: CADBURY ADAMS USA LLC
    Inventors: James A. Duggan, Jose Angel Amarista, George Albert Barrera, Joseph M. Bunkers, Arthur W. Upmann, Miles van Niekerk, Glenn Thompson Visscher
  • Patent number: RE45423
    Abstract: A method of extending the life of an extruder screw by affixing tiles of wear-resistant material along the crest of the extruder screw flighting threads, and optionally grinding the hardened material to remove any sharp edges. In another configuration of the present invention, plates of wear-resistant material are secured to the leading edges of the extruder screw threads to further prolong the life of the extruder screw.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: March 17, 2015
    Assignee: Good Earth Tools, Inc.
    Inventors: Edward Williams, Alan Eugene Kirkland