Patents Examined by Joseph Leyson
  • Device for dry-forming a fibrous web
    Patent number: 8827673
    Abstract: A device for dry-forming a fibrous web, in which a plurality of fibers or fiber mixtures is supplied to a forming head by means of an air flow, is described. The forming head includes a forming outlet arranged above a gas-permeable deposit belt. The fibers deposited on the deposit belt within a forming zone are continuously conveyed out of the forming zone by the deposit belt. A clearance of the forming zone formed between the forming head and the deposit belt is shielded with respect to the surroundings by several sealing means. To obtain as uniform a composition of the fiber layer as possible when depositing the fibers, the sealing means arranged on a feed side forms an inlet opening having an adjustable inflow cross-section through which a defined secondary air flow flows from the surroundings into the clearance.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: September 9, 2014
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Olaf Schwarz, Ingo Mählmann
  • Extrusion die device
    Patent number: 8821147
    Abstract: An extrusion die device includes a die holder including a supporting hole and a die assembly accommodated in the supporting hole, wherein the die assembly includes a male die including a core member having a projected portion, a core case holding the core member, a female die including a body which includes an engagement groove engaging the core case of the male die, and which engages the supporting hole, and a nesting member formed in an annular shape and accommodated in the body at a portion close to a raw material supply part, and a cap member formed in a plate shape, disposed at a position closer to the raw material supply part than from the male die, covering a portion of the core member, and connected to the core case, and wherein a space between the nesting member and the core member is defined as a molding hole allowing the extrusion raw material to pass therethrough.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: September 2, 2014
    Assignee: Mitsubishi Aluminum Co., Ltd.
    Inventors: Nobuyuki Hasegawa, Noboru Orito
  • Contour crafting extrusion nozzles
    Patent number: 8801415
    Abstract: An automated extrusion construction system may include an extrusion nozzle configured to extrude construction material in a substantially horizontal direction against an elongated and substantially vertical surface. An extrusion nozzle may have a height adjustment mechanism configured to adjust the height of an outlet in response to level deviations in the surface on which the construction material is extruded by the extrusion nozzle. An automated extrusion construction system may include a slicing mechanism configured to controllably slice through the extruded layer.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: August 12, 2014
    Assignee: University of Southern California
    Inventor: Behrokh Khoshnevis
  • Sheet forming die and sheet forming method
    Patent number: 8801417
    Abstract: Provided is a sheet forming die capable of finely controlling the flow rates of the respective divided flows of a molten resin with precision. The sheet forming die is a sheet forming die 3 configured to: receive a first molten resin B; to receive a second molten resin A; and to thus form a sheet-shaped resin-made product by discharging the molten resins A, B from a lip gap 15.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: August 12, 2014
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Kenji Nozawa, Masatsugu Tamura
  • High pressure relief assembly and assembly locking device for use with extruders
    Patent number: 8794949
    Abstract: The invention provides devices that are attached to an extruder making the operation thereof more efficient and convenient and allowing for a quick change over of parts used to make various products prepared in the extrusion process. A high pressure relief assembly is attached to the extruder that allows for the rapid release of pressure from the extruder at the end of the process by venting product under pressure from the extruder and the extruder also has attached thereto a quick assembly locking device that allows for the exchange of assemblies, such as a density control assembly and other assembles, without the removal of nuts, bolts, and clamps by attaching the assembly to an arm that can be moved in and out of place in front of the extruder and wherein the device has a locking mechanism that seals and releases the assembly from the extruder.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: August 5, 2014
    Assignee: Nestec SA
    Inventors: Tyler Dean Simpson, Dwight E. Howdeshell, II
  • Apparatus for the continuous production of a twin wall pipe with an integral socket
    Patent number: 8794948
    Abstract: An apparatus for the continuous production of a twin wall pipe has mold block halves supplied in pairs to form a mold, and a pipe head, which has an external nozzle for the extrusion of an external hose and an internal nozzle for the extrusion of an internal hose. A support air and venting channel which is annular-cylindrical and concentric with respect to the center longitudinal axis of the pipe head opens out between the external nozzle and internal nozzle.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: August 5, 2014
    Inventor: Ralph Peter Hegler
  • Apparatus for processing scrap cross-linked thermoset elastomeric material
    Patent number: 8790106
    Abstract: An apparatus for processing thermoset cross-linked elastomeric scrap material has a batch-operated high shear mixer for inducing chemical reactions to partly devulcanize the material in a first devulcanizing stage. A continuously-operated multi-screw cooled extruder receives the partly devulcanized material from the high shear mixer and further devulcanizes the material by a mechanical shearing action in a second stage to produce an extruded product for revulcanization.
    Type: Grant
    Filed: November 22, 2012
    Date of Patent: July 29, 2014
    Assignee: Rep International
    Inventor: James F. Fisher
  • Auger feeder for concrete mix, and slipform-casting apparatus
    Patent number: 8784088
    Abstract: An auger feeder for concrete mix, comprising a helical segment (1), whereby the auger feeder comprises an insert (2) mounted on an upstream end of the auger feeder, said insert being manufactured in a material softer than that used for manufacturing the auger feeder's helical segment (1), and said insert comprising means (4) for fastening the auger feeder to a casting apparatus. The invention also comprises a method for manufacturing such an auger feeder, and a slipform-casting apparatus equipped with such an auger feeder.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: July 22, 2014
    Assignee: Elematic Oy AB
    Inventors: Aimo Seppänen, Tapio Kukka, Heikki Lehtonen, Lassi Järvinen, Jani Eilola
  • Device for producing electrospun fibers
    Patent number: 8770959
    Abstract: Electrospinning nozzles include novel constructs for providing spinning pores that define the origin of jets of fiber-forming media. In some embodiments, a film covers relatively large holes in a nozzle body and provides spinning pores aligned with such large holes. In some embodiments, conductive tubes are secured at or about relatively large holes in a nozzle body and provide spinning pores fluidly communicating with fiber-forming media at such large holes. In yet other embodiments, nozzle bodies are provided with circular or semi-spherical surfaces having a plurality of spinning pores.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: July 8, 2014
    Assignee: University of Akron
    Inventors: George Chase, Kitchaporn Nartetamrongsutt, Jackapon Sunthorn Varabhas, Gary Carlson, Seth Finley
  • Extruder
    Patent number: 8758004
    Abstract: An extruder comprises an extruding section, a chamber drum, and a forming section. The extruding section kneads and extrudes a kneaded material including a ceramic raw material. The chamber drum includes a first space portion which extends from the extrusion port side of the extruding section in an extruding direction and allows the kneaded material to flow in the extruding direction, and a second space portion which extends from a downstream side of the first space portion in a downward direction, allows the kneaded material to flow in the downward direction different from the extruding direction, and has a discharge port to discharge the kneaded material. The forming section includes a die through which the kneaded material discharged through the discharge port of the chamber drum is pushed out, to extrude and form ceramic formed bodies.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: June 24, 2014
    Assignee: NGK Insulators, Ltd.
    Inventors: Yuichi Tajima, Masashi Ono
  • Device for producing thermoplastic corrugated pipes
    Patent number: 8727760
    Abstract: An apparatus for producing thermoplastic corrugated pipes may include an extrusion device with an extruder and an extrusion die device and a corrugator device with traveling mold jaws. The extrusion device and the corrugator device are positionally movable in relation to one another, for example for adjustment. The extrusion device is positionally movable in relation to the corrugator device in a horizontal plane, while the corrugator device is movable exclusively in height here.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: May 20, 2014
    Assignee: Unicor GmbH
    Inventor: Gerhard Neubauer
  • Die plate for resin granulation
    Patent number: 8727762
    Abstract: In order to ensure quality of pellets by eliminating temperature differences among extrusion nozzle holes with use of a heating medium flowing through heating channels only once and flowing out through a heating medium outlet, provided is a die plate for resin granulation, in which a plate main body (1) is divided into regions (A to n) for every 360/n (n=4, 6, or 8) degrees, or into first to fourth regions (A to D) for every 90 degrees, and an inner annular heating passage (4) and an outer annular heating passage (5) are formed. A heating medium (F) supplied through a heating medium inlet (2) flows through heating channels (8) only once, and then flows out through a heating medium outlet (3) to an outside.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: May 20, 2014
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Tetsuo Makida, Kenji Nishimoto, Osamu Sumida, Tomonori Hashimoto
  • Combined spinning nozzle for the manufacture of nanofibrous and microfibrous materials
    Patent number: 8727756
    Abstract: The combined spinning nozzle for the production of nanofibrous or microfibrous materials comprises a thin-walled electrode (1) and a first non-conductive body (2) adjoining the first wall of said thin-walled electrode, said first body having its wall, which faces the thin-walled electrode (1), provided with an array of grooves (5) formed therein, said grooves leading to the distal end (6) of the combined spinning nozzle and having their proximal ends connected to a supply of spinning mixture. The thin-walled electrode (1) and the first non-conductive body (2) may assume either plate-like or cylindrical shapes. The combined spinning nozzle may further comprise a second non-conductive body (4) adjoining a second wall of the thin-walled electrode (1) and directing the air from the proximal end towards the distal end (6) of the nozzle.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: May 20, 2014
    Assignee: Contipro Biotech s.r.o.
    Inventors: Marek Pokorný, Lada Suková, Ji{hacek over (r)}i {hacek over (R)}ebí{hacek over (c)}ek, Vladimír Velebný
  • Noodle maker
    Patent number: 8721314
    Abstract: In an extruder-type noodle maker comprising a casing constituted as a cylindrical body, a screw, a nozzle unit, a connector, a hopper, and a drive unit, the nozzle unit is formed with many holes tapered in the outlet direction, an inner peripheral surface of the nozzle unit is provided with multiple engaging protrusions and depressions, an end surface of the distal end periphery of the cylindrical casing is provided at corresponding locations with multiple receiving depressions and protrusions for insertion into the engaging protrusions and depressions, and the cylindrical casing is constituted by forming a proximal end section thereof positioned under the hopper of resin and forming a distal end thereof near an outlet of metal, whereby it has a structure comprising a resin portion and a metal portion joined together.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: May 13, 2014
    Inventor: Eiji Sugano
  • Kneading extruder
    Patent number: 8721312
    Abstract: A kneading extruder includes a barrel having an extrusion port through which kneaded material including first and second liquid raw material is extruded, and a screw shaft placed in the barrel, the screw shaft kneading the first and second raw material to produce the kneaded material in melted state. A screw driving device continuously rotates the screw shaft at a constant speed, and a die communicates with the extrusion port of the barrel, the die having an extrusion port through which the kneaded material in a pressurized state is extruded. An ejection device ejects a portion of the kneaded material between the extrusion port of the barrel and the extrusion port of the die, the ejection device including an ejection quantity regulating unit for regulating the ejection quantity of the kneaded material so that the pressure of the kneaded material at the extrusion port of the barrel is kept constant.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: May 13, 2014
    Inventor: Kohei Sawa
  • Intermittent flow extrusion apparatus
    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
  • Device for cooling plastic profiles
    Patent number: 8702410
    Abstract: An extrusion line for producing plastic profiles, preferably plastic pipes, comprising at least one extruder, one die, one calibration means and further following devices. The die has at least one aperture, and an extraction means arranged in front of the die as viewed in the extrusion direction, and the die consists of a plurality of functional regions with separate melt channels. Furthermore, the invention relates to increasing the cooling performance of an extrusion line for extruding a plastic profile, in particular a plastic pipe, which comprises the following steps, a) melting plastic in an extruder, b) shaping a plastic strand and feeding the plastic strand to a die, c) shaping a plastic profile by means of the die, and d) calibrating and curing by cooling the profile, the profile being cooled in the interior in addition to outer cooling.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: April 22, 2014
    Assignee: battenfeld-cincinnati Austria GmbH
    Inventors: Leopold Hackl, Josef Dobrowsky, Georg Zacher, Miron I. Gorilovskiy
  • Die tooling for extruding tubular product
    Patent number: 8684719
    Abstract: Die tooling is formed by forming a series of passages extending in the length of the tooling where each passage has a circumference defined within a body member of the tooling. Preferably the passages are primarily formed using a drilling procedure. The passages define a predetermined pattern of outlets adjacent the extrusion outlet or outlets. The passages between the inlets and outlets can be formed in a series of connected body members with each passage extending through each body member. Die tooling of this design is more robust and cost effective to manufacture.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: April 1, 2014
    Inventors: Manfred A. A. Lupke, Stefan A. Lupke
  • Spinning cell for synthetic fiber
    Patent number: 8678799
    Abstract: Included is a spinning cell for a synthetic fiber such as spandex. The spinning cell includes a top closure which reduces or eliminates solvent vapor transfer, where solvent vapor process gas(es) may leave the cell and room air may be introduced into the spinning cell. A bottom closure device may also be included.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: March 25, 2014
    Assignee: Invista North America S.ár.l.
    Inventors: John T. Casey, James B. Elmore, Charles P Deturk, David A. Wilson
  • Plastic extruder
    Patent number: 8672662
    Abstract: The invention relates to a device (1) for extruding thermoplastic material, having an extruder housing (22) in which an extruder screw (22) driven by a drive device (23) is supported rotatably about the axis thereof, said housing comprising an intake opening (24) to which a plastic material feeder (3) is connected, said feeder comprising at least one air inlet opening (36), wherein the extruder housing (22) comprises at least one vapor outlet opening (41) upstream of the intake opening (24) and an air/vapor path (28) is defined from the intake opening (24) to the vapor outlet opening (41).
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: March 18, 2014
    Assignee: Starlinger & Co Gesellschaft m.b.H.
    Inventors: Christian Lovranich, Johann Brandstaetter, Andreas Pechhacker