Molding Of Thermosetting Or Cross-linking Stock Patents (Class 425/543)
  • Patent number: 10766176
    Abstract: Hot-runner manifolds that contain one or more types of non-melt channels in addition to melt channels, and injection-molding systems containing such hot-runner manifolds. The differing types of non-melt channels include: coolant channels for carrying a coolant for cooling the tips of hot-tip nozzles, for example, during hot latching operations; heating-fluid channels for carrying a heating fluid for heating melt within melt channels within the hot-runner manifolds; and actuation-fluid channels for carrying actuation fluid to valves of valve-actuated nozzles. In each case, nozzles can be formed unitarily monolithically with the hot-runner manifolds and one or more of the various types of non-melt channels can be continuously routed within such unitary monolithic nozzles. Freeform fabrication processes can be used to form hot-runner manifolds of the present disclosure, which often contain complex/intricate internal passageways that form the various types of melt and non-melt channels.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: September 8, 2020
    Assignee: HUSKY INJECTION MOLDING SYSTEMS LTD.
    Inventor: Edward Joseph Jenko
  • Patent number: 10421224
    Abstract: The present invention provides a method for producing molded articles by joining primary molded parts by injection welding, by which a molded article composed of primary molded parts that are joined with high weld strength can be produced. The present invention relates to a method for producing molded articles including a welding step of injecting an injection welding material containing a polyamide around or between butt weld portions of primary molded parts disposed in face-to-face contact, so as to weld the primary molded parts together to form a molded article. The polyamide contains dicarboxylic acid units and diamine units. This polyamide further contains triamine units in an amount of 0.05 to 1 mol % with respect to the total dicarboxylic acid units.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: September 24, 2019
    Assignee: KURARAY CO., LTD.
    Inventor: Hideaki Takeda
  • Patent number: 9475211
    Abstract: An injection mold assembly for a high output consumer product injection molding machine, the injection mold assembly having a simplified cooling system. The simplified cooling system has a cooling complexity factor of less than three, preferably less than two, more preferably less than one.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: October 25, 2016
    Assignee: IMFLUX INC
    Inventors: Gene Michael Altonen, Ralph Edwin Neufarth, John Boyet Stevens, Robert Lawrence Prosise, James Edward Poland, John Moncrief Layman, Danny David Lumpkin
  • Patent number: 9216532
    Abstract: An injection mold assembly for injection molding an object includes a first mold tool having a first tool surface and a second mold tool having a second tool surface. The first and the second tool surfaces are cooperatively configured to define a mold cavity between the tool surfaces for an injection molding of an object. The first mold tool has a tool element with a first side that has the first tool surface, and with a second side opposite the first side. Multiple fins extend from the second side of the tool element. A base supports the fins. The tool element, the fins and the base define a coolant flow cavity at the second side of the tool element. A method of designing the mold assembly is also disclosed.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: December 22, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Jeffrey L. Konchan, Julien P. Mourou
  • Patent number: 9186831
    Abstract: The invention relates to a method for producing of a form part, especially of a plane thin-walled fiber composite part, in a mold (1), comprising the steps: a) Providing of the mold (1), wherein the mold (1) comprises a cavity (2) with a nominal form volume (V) for inserting of a reactive mixture, wherein the cavity (2) is delimited by at least one cavity wall section (3) which is elastically deformable during the inserting of the reactive mixture and wherein the modulus of compressibility (K) of the cavity (2) is between 2,000 bar and 10,000 bar; b) Inserting of the reactive mixture into the cavity (2), wherein the reactive mixture is inserted with such a pressure into the cavity (2) so that the cavity volume is increased during the insertion of the reactive mixture due to elastic deformation of the at least one cavity wall section (3) above the nominal form volume (V); c) Letting solidify of the reactive mixture in the cavity (2); d) Demolding of the finished form part from the mold (1).
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: November 17, 2015
    Assignee: HENNECKE GMBH
    Inventors: Juergen Wirth, Jens Geuer, Martin Schamberg
  • Patent number: 9085094
    Abstract: A folding top for vehicles has a cast-resin bead element provided in a connecting region between an outer cover surface element and at least one further cover element. The top is made by first inserting at least one section of the outer cover surface element into a casting mold and at least one section of a sacrificial profile into the casting mold. A head area of the profile is wider than a neck area thereof. Then a casting compound is introduced into the casting mold around the head area. After curing of the compound, the cover surface element is removed with bead element affixed thereto from the casting mold. The sacrificial profile is extracted from the bead element in order to provide an undercut seat in the bead element.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: July 21, 2015
    Assignee: PARAT BETEILIGUNGS GMBH
    Inventor: Andreas Ascher
  • Patent number: 9068647
    Abstract: Provided is a method for manufacturing a gear wheel, the method including: preparing an insertion unit formed of a steel material having a hollow pipe shape; injection-molding an outer side unit including teeth on an outer circumference; and molding a connection unit having a wheel shape by injecting resin into at least three points between the insertion unit and the outer side unit so as to connect the insertion unit and the outer side unit after arranging the insertion unit on the inner center of the outer side unit. According to the method, removing of an unnecessarily injected portion may be omitted since the resin is injected between the insertion unit and the outer side unit while injection-molding the connection unit. Also, productivity is increased by decreasing a number of defective products generated due to cracks.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: June 30, 2015
    Assignee: KWANGDUCK A & T
    Inventor: Hyung-Jun Kim
  • Patent number: 8911227
    Abstract: A precision cassette plate, which is an integral component of a mold assembly in an injection molding system, is designed to secure a predetermined number of components fabricated in an injection molding process. The precision cassette plate is designed with two pre-alignment holes and two precision position anti-rotational features that guarantee accurate placement of the precision cassette plate each time at each stage of the manufacturing/assembly process.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: December 16, 2014
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Victor Lust, Vincent G. McAteer, Phillip King Parnell, Sr., George B. Kipe
  • Patent number: 8827670
    Abstract: A dual platen molding machine for constructing a plurality of pre-insulated structural panels is disclosed that includes multiple safety features. The molding machine produces one or more panels that may include one or more c-channels or profiles embedded in expandable polystyrene (EPS) foam to provide structural integrity to the panels, and resulting wall. A chase may be formed horizontally in the panels to provide a wiring conduit through the panel. The molding machine is electrically operated to control the movement of a movable molding portion when closed upon a stationary molding portion. Steam may be controlled to fuse insulating material such as expandable polystyrene (EPS) in cavities formed between the movable mold and the stationary mold. No hydraulics is required to operate the dual platen molding machine, thus improving operating and maintenance costs. Moreover, steam hoses may be avoided, thereby improving overall safety.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: September 9, 2014
    Assignee: Radva Corporation
    Inventor: Luther I. Dickens
  • Publication number: 20140151917
    Abstract: The invention relates to a method for producing of a form part, especially of a plane thin-walled fiber composite part, in a mould (1), comprising the steps: a) Providing of the mould (1), wherein the mould (1) comprises a cavity (2) with a nominal form volume (V) for inserting of a reactive mixture, wherein the cavity (2) is delimited by at least one cavity wall section (3) which is elastically deformable during the inserting of the reactive mixture and wherein the modulus of compressibility (K) of the cavity (2) is between 2,000 bar and 10,000 bar; b) Inserting of the reactive mixture into the cavity (2), wherein the reactive mixture is inserted with such a pressure into the cavity (2) so that the cavity volume is increased during the insertion of the reactive mixture due to elastic deformation of the at least one cavity wall section (3) above the nominal form volume (V); c) Letting solidify of the reactive mixture in the cavity (2); d) Demoulding of the finished form part from the mould (1).
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Applicant: Hennecke GmbH
    Inventors: Juergen WIRTH, Jens GEUER, Michael SCHAMBERG
  • Patent number: 8721322
    Abstract: A micro silicone mold mounted plunger injection system comprises a silicone cartridge assembly, a micro plunger injection assembly and a cold deck nozzle assembly. In this system, these three components are interconnected directly such that it has a greatly reduced material flow path length and diameter. The system is capable of displacing an amount of material in a single shot substantially equal to the desired shot weight required to make a component.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: May 13, 2014
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Vincent G McAteer, George B. Kipe, Victor Lust, Phillip King Parnell, Sr.
  • Patent number: 8708691
    Abstract: A composite fabrication apparatus which may include a first tooling die and a second tooling die movable with respect to each other; a temperature control system having induction coils disposed in thermal contact with the first tooling die and the second tooling die; a first die susceptor provided on the first tooling die and a second die susceptor provided on the second tooling die and connected to the induction coils; and a cooling system disposed in thermal contact with the first tooling die and the second tooling die. A resin transfer system delivers resin from a resin source to the tooling dies to allow resin transfer molding. A composite fabrication method is also disclosed.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: April 29, 2014
    Assignee: The Boeing Company
    Inventors: Marc R. Matsen, Kim E. Peterson, William Dykstra
  • Patent number: 8597017
    Abstract: A mold for producing a variety of fenestration members having different predetermined lengths is disclosed. Generally, the mold has a first lineal mold part that has an extended length and a second lineal mold part also having an extended length. The mold may also have mold end parts that are adapted to form end features of the fenestration member. In use, the first lineal mold part and the second lineal mold part fit together to define a profile. The first and second mold end parts can be positioned in a range of positions to define the lengths of a variety of different molded fenestration members.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: December 3, 2013
    Assignee: Anderson Corporation
    Inventors: Troy Rubenzer, Jim Eggert, Dale Thompson, Kathleen Barton, David J. Weiss, Matt Sedivy
  • Publication number: 20130134633
    Abstract: A micro silicone mold mounted plunger injection system comprises a silicone cartridge assembly, a micro plunger injection assembly and a cold deck nozzle assembly. In this system, these three components are interconnected directly such that it has a greatly reduced material flow path length and diameter. The system is capable of displacing an amount of material in a single shot substantially equal to the desired shot weight required to make a component.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 30, 2013
    Inventors: Vincent G. McAteer, George B. Kipe, Victor Lust, Phillip King Parnell, SR.
  • Patent number: 8303285
    Abstract: An injection nozzle having a nozzle body defining an injection cavity and at least one curing device integrally formed within the nozzle body.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: November 6, 2012
    Assignee: Airbus Operations Limited
    Inventor: Jeremy Bradley
  • Patent number: 8282386
    Abstract: An injection molding apparatus includes an inlet component, a plurality of nozzles, and a plurality of hoses, each of which is not heated. The hoses are connected between outlets of the inlet component and respective molding material inlets of the nozzles for conveying molding material from the inlet component to the nozzles. Hoses may also be connected between a rail plate and the nozzles for delivering cooling fluid or actuation fluid for an actuator to and from the nozzles. The nozzles may be fastened to a mold plate of the injection molding apparatus, such as by a threaded bushing. A heated insert may at least partially define the mold cavity to heat molding material in the mold cavity.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: October 9, 2012
    Assignee: Mold-Masters (2007) Limited
    Inventors: Denis Babin, Harold Godwin, Jiping Qian, Yat Kwong Lai
  • Patent number: 8262378
    Abstract: A multilayer-molding method includes the steps of mixing at least one thermoplastic resin selected from a plurality of types of thermoplastic resins with a bubble-nucleating agent and a foaming gas, injecting the plurality of types of thermoplastic resins into a mold cavity such that the thermoplastic resins are layered in the mold cavity, and then, after increasing the volume of the mold cavity, foaming the at least one thermoplastic resin mixed with the bubble-nucleating agent and the foaming gas. The multilayer-molding method is characterized in that the foaming gas is supplied at a pressure of 0.1 MPa or more but less than 1.0 MPa to at least one injection-molding machine selected from a plurality of injection-molding machines, and that the thermoplastic resin plasticized in the injection-molding machine is mixed with the foaming gas.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: September 11, 2012
    Assignee: Ube Machinery Corporation, Ltd.
    Inventors: Akio Okamoto, Kazuaki Miyamoto
  • Patent number: 8211349
    Abstract: An injection molding machine includes means for plasticizing rubber material and injectors for injecting the material in a fluid state into a flow channel having at least one outlet in communication with an internal volume of a mold. The flow channel is provided with at least one inverter device for inverting a radial temperature profile in the flow of the fluid material, between upstream and downstream ends of the at least one inverter device.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: July 3, 2012
    Assignee: REP International
    Inventors: Stephane Demin, Christophe Nogha
  • Patent number: 8075302
    Abstract: An apparatus and method for optimally mixing and injecting a two part urethane foam which utilizes a unique mixing head having needle type valves which are specially sealed and positioned, able to provide precisely controlled amounts of constituent mixing compounds, and are further able to resist clogging. The apparatus further includes an electric-pneumatic actuation system, an unmixed compound recirculation system, and a cleaning solvent injection system which are functional while the apparatus is in use. The apparatus and method precisely controls the temperature, pressure, and delivery rates for optimum urethane mixture, viscosity, delivery, reaction time, and reliability.
    Type: Grant
    Filed: January 1, 2010
    Date of Patent: December 13, 2011
    Inventor: Luther W. McClellan
  • Patent number: 8057209
    Abstract: A mold for an injection molding apparatus includes a light-transmitting part forming at least a portion of the mold, and configured to transmit light to a cavity to be filled with photo-setting resin.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: November 15, 2011
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Hidehisa Tanaka, Jyun Koike, Yukio Iimura
  • Patent number: 8029263
    Abstract: A mold assembly includes a support table mounted for rotation within a vacuum chamber. A plurality of hollow part molds is radially disposed about an axis of rotation of the support table. Each part mold has fiber architecture disposed between an inflatable bladder and internal walls of the part mold. A first motor rotates the support table and resin is urged by centrifugal force to flow along the length of each part mold until the fiber architecture is thoroughly impregnated with resin. A second motor spins each part mold about an axis of rotation of the part mold to ensure that the resin migrates radially outwardly relative to the interior wall surface of each part mold. The resulting product is a monolithic, seamless part having no voids.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: October 4, 2011
    Inventors: Marc A. Quenneville, Stephen M. Quenneville
  • Publication number: 20110192531
    Abstract: An RTM molding method and device includes disposing a reinforcing fiber substrate in a cavity of a mold consisting of a plurality of dies, clamping the mold, and injecting resin to complete molding, wherein divided areas with respect to the surface direction of the reinforcing fiber substrate are assumed, each divided area is one in which injected resin expands over the entire surface in the area and can be substantially uniformly impregnated in the thickness direction of the substrate, and resin introducing paths are formed for respective assumed divided areas to introduce injected resin into the respective divided areas. When a relatively large molded product is molded, a molding step from resin injection to impregnating/curing can be implemented at high speed without generating a non-resin-flowing area, thereby producing a high-quality molded product with a shortened molding time and increased production speed and volume.
    Type: Application
    Filed: April 1, 2011
    Publication date: August 11, 2011
    Applicant: Toray Industries, Inc.
    Inventors: Toshihide SEKIDO, Shigeo IWASAWA, Tatsuya SENBA
  • Patent number: 7988903
    Abstract: A multi-part rubber compound comprising: (1) a first compound comprising an elastomer (1)(a) and a vulcanizing agent, and having a ts2 of at least 1.5 minutes; (2) a second compound comprising an elastomer (2)(a) and a cure accelerator, and having a ts2 of at least 1.5 minutes; and (3) one or more optional compound comprising an elastomer (3)(a) and having a ts2 of at least 1.5 minutes; wherein: at least one of (1)(a), (2)(a) and (3)(a) has a Mooney viscosity of 20-75 measured at 100° C. (ASTM D1646), the first, second and optional compounds are kept separate until the multi-part compound is used, a blend of equal volumes of the first and second compounds, optionally with an equal volume of the optional compound, has a ts2 of less than 0.7 minutes, ts2 being measured at 190° C.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: August 2, 2011
    Assignee: Zeon Chemicals L.P.
    Inventors: Paul E. Manley, Charles T. Smith
  • Patent number: 7985780
    Abstract: A cylindrical molding based on cellular polyurethane elastomers having a density according to DIN EN ISO 845 of from 300 to 900 kg/m3, a tensile strength according to DIN EN ISO 1798 of ?2.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: July 26, 2011
    Assignee: BASF SE
    Inventors: Elke Marten, Andreas Heidemann, Markus Schütte, Michael Strauβ, Heinrich Bollmann, Ralf Hansen
  • Patent number: 7967587
    Abstract: An injection nozzle having a nozzle body defining an injection cavity and at least one curing device integrally formed within the nozzle body.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: June 28, 2011
    Assignee: Airbus Operations Limited
    Inventor: Jeremy Bradley
  • Patent number: 7875237
    Abstract: The invention relates to a method for manufacturing a dental scaler tip using a powder injection molding process, a mould, and a scaler tip that is excellent in shape-reliability and injects fluid to a front end thereof along a curved section of the tip. The method comprises the steps of preparing feedstock and injecting the feed stock into a mould to form a molding body, wherein, the mould comprises an operating section to which cylindrical core pins having multi steps and an eccentric end formed at a front end thereof for forming the fluid passage is mounted; and a pair of slide cores disposed for supporting the eccentric ends of the core pins such that the slide cores face each other and are slid in the direction perpendicular to the movement direction of the core pins to form a cavity corresponding to a shape of an article to be formed.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: January 25, 2011
    Assignee: Korea Institute of Industrial Technology
    Inventors: Chul Jin Hwang, Hyung Pil Park, Young Bae Ko, Young Moo Heo, Jong Sun Kim
  • Publication number: 20110003026
    Abstract: A sealing apparatus for sealing by resin a semiconductor wafer having semiconductor elements on its surface. The apparatus includes an upper mold and a tower mold having an area where the semiconductor wafer is mounted, the lower mold having an uneven surface in the area and a shock absorber under the lower mold.
    Type: Application
    Filed: September 14, 2010
    Publication date: January 6, 2011
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventor: Jiro Matsumoto
  • Publication number: 20100219564
    Abstract: Conventional production of plastic products not releasing harmful organic molecules requires a high injection or extrusion pressure in order to avoid heating of a resin to high temperature, resulting in use of a large-sized and heavy resin molding apparatus having high electric power consumption. The employment of a method of inhibiting oxidative decomposition and catalytic decomposition enables the formation of a molten plastic having an extremely low viscosity without decomposition or dissociation even at high temperature, whereby the molding of the resin can be conducted at a very low injection or extrusion pressure to attain the downsizing and weight saving of the resin molding apparatus.
    Type: Application
    Filed: September 12, 2005
    Publication date: September 2, 2010
    Inventor: Tadahiro Ohmi
  • Patent number: 7722348
    Abstract: A mold assembly includes a mold mounted for rotation within a vacuum chamber. The mold includes a central drum having a hollow interior into which resin is poured. A plurality of hollow blade molds is radially disposed about the central drum. A plurality of radially disposed struts is secured to the central drum and each strut is received within an associated blade mold. Openings are formed in the central drum and in the struts. Elongate bundles of woven fiberglass are weaved in and out of the openings, beginning in the drum and extending to the respective ends of each strut. A motor spins the mold assembly and resin in the central drum is urged by centrifugal force to flow along the length of the woven fiberglass bundles until each blade mold is filled with resin. The resulting product is a monolithic structure having plural blades radiating from a central hub.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: May 25, 2010
    Inventors: Mac A. Quenneville, Stephen M. Quenneville
  • Patent number: 7708550
    Abstract: An injection mold and an injection molding apparatus having a movable mold and a fixed mold. Each of the movable/fixed molds has bases, and a runner, a gate and a cavity are formed. The gate is composed of recesses made in mutually opposite end surfaces of sleeve-like heat insulators provided for the bases. Thereby, the gate is heat-insulated, and resin in the gate is prevented from cooling down during a pressure retention step. Thus, the resin keeps fluidity longer.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: May 4, 2010
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Kanji Sekihara, Atsushi Naito, Yoshihiro Okumura
  • Publication number: 20100102484
    Abstract: A mold for forming a temporary prosthesis has at least two mold members at least partially separable from each other. The at least two mold members cooperatively define a generally enclosed interior cavity for forming the temporary prosthesis. The mold has a securement structure mounted on the at least two mold members for securing the at least two mold members to each other during the forming of the temporary prosthesis. The securement structure is removable from the at least two mold members by hand and without the use of a tool.
    Type: Application
    Filed: December 4, 2008
    Publication date: April 29, 2010
    Inventors: Sean HANEY, Scott M. Sporer
  • Patent number: 7686608
    Abstract: A system for distributing a substance includes a chamber configured to accommodate a mold surface and an inlet port in the chamber. The substance is introduced into the chamber through the inlet port. Flexible tubing is coupled between the inlet port and a reservoir containing the substance. A pump is used to compress a portion of the flexible tubing to move the substance through the tubing and inject the substance into the chamber.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: March 30, 2010
    Assignee: Lockheed-Martin Corporation
    Inventors: Steven P. Slaughter, John C. Fish, Susan N. Clarkson
  • Patent number: 7670538
    Abstract: A cannula casting mould and casting method for improving quality by making it possible to cast a smooth surface. An opening is formed in the side of the front side and a casting mould for casting a cylindrical cannula formed with a liquid flow path that is connected inside to the opening that comprises a mould body in which a casting groove is formed, a core area placed in the casting groove forming a casting open area between the surfaces of the casting groove, and an angle pin prepared in the mould body in an elongated state of the area corresponding to the open area of the casting groove. Furthermore, the injection opening for injecting casting material into the casting opening is prepared on the opposite side of the core area centre of axis from the area where the angle pin was placed in the mould body.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: March 2, 2010
    Assignee: Tyco Healthcare Group LP
    Inventors: Wataru Kurimoto, Hiromichi Itakura
  • Publication number: 20100025869
    Abstract: There is provided a method of manufacturing a molded article formed with a thermosetting resin and an injection molding apparatus so that occurrence of blurs and containing of bubbles at the time of molding can be prevented.
    Type: Application
    Filed: September 14, 2007
    Publication date: February 4, 2010
    Inventors: Mitsunobu Suzuishi, Akihiro Saito, Hiroaki Usami, Hiroyuki Hirama, Ichiro Iibuchi, Toshiharu Igarashi, Masashi Yoshimura
  • Publication number: 20090261502
    Abstract: An integral molding method of gasket of a fuel cell component member in which a gasket body is integrally molded with an outer peripheral portion of a membrane electrode assembly and a peripheral portion of an opening formed on the membrane electrode assembly by cross-linking molding using a mold having a heating means, the membrane electrode assembly comprising a proton exchange membrane, a gas diffusion layer integrally laminated on both sides of the proton exchange membrane via a catalyst carrier layer constituting an electrode. The mold has a cavity corresponding to a molding portion of the gasket body and a heat insulation zone corresponding to a power generating functional portion of the fuel cell component member, a not-cross-linked gasket material is filled in the cavity and the gasket material is molded by heat cross-linking molding using the heating means, whereby a heat generated by molding is prevented from being transmitted to the power generating functional portion by the heat insulation zone.
    Type: Application
    Filed: September 8, 2006
    Publication date: October 22, 2009
    Applicant: Uchiyama Manufacturing Corp.
    Inventor: Junichi Arai
  • Patent number: 7544055
    Abstract: A method of resin transfer molding uses an open base mold filled with fiberglass material and a soft tool sealed over the base mold. A vacuum is applied to a vacuum chamber that surrounds the mold and communicates with the fiberglass material through vacuum conduits. Resin is injected into the closed mold and is drawn through the fiberglass material to the edge of the mold with the assistance of the vacuum. The soft tool is preferably a flexible sheet having an edge seal to connect to the base mold and a vacuum channel with a vacuum port that surrounds the mold. The injection head releasably connects to the soft tool and preferably uses a solenoid actuated injector to supply resin to the mold. The injection head can include a self sealing device to seal the injection port and a self cleaning mechanism for flushing resin from the interior chamber of the head.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: June 9, 2009
    Assignee: Brunswick Corporation
    Inventors: Steve Crane, Johannes Krogman, Matthew Boyd, Rob Hill, David Miller, Corey Nianekeo, Mark Paulhus, Brett Schnelder, Joe Blodgett
  • Patent number: 7534103
    Abstract: Embodiments of the present invention relates to an injection moulding machine or injection unit and to an injection moulding method for injection moulding plastic materials (e.g., elastomeric materials), particularly according, to cold channel and hot channel techniques, comprising an extruder, a first piston/cylinder unit and a second piston/cylinder unit mounted in series thereto. The cylinder of the first piston/cylinder unit leads into the end of the second piston/cylinder unit located at a distance from an injection mould to be filled. According to an aspect of the invention, the elastomeric material is firstly led by means of the first piston/cylinder unit through the cylinder of the second piston/cylinder unit and into the injection mould, wherein the piston of the second piston/cylinder unit frees the flow path to the injection mould.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: May 19, 2009
    Assignee: Landshuter Werkzeugbau Alfred Steinl GmbH & Co. KG
    Inventors: Stefan Weyand, Hubert Degenbeck, Rainer Schmidt
  • Publication number: 20090118688
    Abstract: A method and injection machine for producing a hollow product, such as a urisheath, use of the method for producing a urisheath as well as the urisheath. The machine comprises an annular cavity for receiving a silicone material. The material is injected in a cold state via a coldrun nozzle (20) and cured by heat in the cavity. The cavity has a narrow cross-sectional area over a substantial portion of the cavity and the cavity is connected to a venting area (13). The cavity has an annular enlarged portion (18) at the proximal portion of the cavity, arranged adjacent said inlet (24) and a groove (14) at the distal portion of the cavity. The narrow cross-sectional area has a decreasing radial dimension towards the distal portion of the cavity. The surface of the cavity is grit blasted.
    Type: Application
    Filed: October 3, 2006
    Publication date: May 7, 2009
    Applicants: Medical Rubber AB, Coloplast A/S
    Inventors: Henrik Lindenskov Nielsen, Per-Erik Magnusson
  • Patent number: 7490975
    Abstract: The present invention provides an improved apparatus and system for mixing castable polyurethanes and polyureas and for prolonging the dispensing time for dispensing them into a golf ball mold for application to a golf ball sub-assembly. A nozzle framework includes support housing heaters and heater adaptors for each dispensing port to delay the onset of drool and improve cut off in the dispensing tubes. The combination of fluorinated dispensing ports, the heating of the polyureas or polyurethanes, and inclusion of a capillary orifice in each dispensing port significantly prolongs the time before the advent of drool is detected.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: February 17, 2009
    Assignee: Acushnet Company
    Inventors: Paul A. Puniello, Shawn Ricci, Peter L. Serdahl, Timothy S. Correia, John T. Davies
  • Publication number: 20080254409
    Abstract: The present invention relates to a method for manufacturing a dental scaler tip using a powder injection molding process which can produce the article in large quantities to save the manufacturing cost and forms an eccentric discharge port of a scaler tip to operate the mould using only one core pin, a mould used for the same that is provided with slide cores having the various shapes machined according to the article to enable the uniform article to be manufactured rapidly to enhance a characteristic and design of the article, and a scaler tip manufactured by the same that is more excellent in shape-reliability and injects fluid to a front end thereof along a curved section of the tip section to perform effectively an operation.
    Type: Application
    Filed: April 13, 2006
    Publication date: October 16, 2008
    Inventors: Chul Jin Hwang, Hyung Pil Park, Young Bae Ko, Young Moo Heo, Jong Sun Kim
  • Publication number: 20080218865
    Abstract: An optical laminate produced by a process for producing an anti-dazzling laminate comprising a light transparent base material and an anti-dazzling layer provided on the light transparent base material. The process includes providing the light transparent base material and forming the anti-dazzling layer having a concavoconvex shape on the light transparent base material, wherein the concavoconvex shape of the anti-dazzling layer satisfies the following requirements: Sm is not less than 100 ?m and not more than 600 ?m, ?a is not less than 0.1 degree and not more than 1.2 degrees, and Rz is more than 0.2 ?m and not more than 1 ?m, wherein Sm represents the average spacing of concavoconvexes or profile irregularities in the anti-dazzling layer; ?a represents the average inclination angle of the concavoconvexes or profile irregularities; and Rz represents the average roughness of the concavoconvexes or profile irregularities.
    Type: Application
    Filed: February 21, 2006
    Publication date: September 11, 2008
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Yukimitsu Iwata, Koichi Mikami, Yoshihiro Nishimura, Takashi Kodama
  • Publication number: 20080203601
    Abstract: The present invention relates to a jig for the manufacture, by means of injection and curing processes, of preforms of composite material frames for aircraft fuselages by using the RTM (resin transfer molding) technology. Two preforms are thus manufactured, one with a C shaped section and another with a L shaped section, together with the preforms of the stabilization ribs for stabilizing the web of the frames and the preform of the roving or staple fiber to cover the gap between the C shaped preform and the L shaped preform. Theses preforms are previously manufactured by any known process for manufacturing preforms. According to a second aspect, the present invention relates to a method of manufacturing composite material load frames for aircraft.
    Type: Application
    Filed: May 1, 2007
    Publication date: August 28, 2008
    Inventors: Jesus Manuel Martin Martin, Ignacio Jose Marquez Lopez
  • Patent number: 7413696
    Abstract: A method for the production of elastomer and duromer molded items in an injection molding process using an injection molding machine with a respectively separately heatable filling unit, injection unit and cross-linking tool. The filling unit is heated to a temperature which is non-critical with regard to the cross-linking reaction of the plastic to be treated. The injection unit is heated to a temperature which is slightly below the cross-linking temperature of the molding material used.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: August 19, 2008
    Assignee: Carl Freudenberg KG
    Inventors: Christop Malig, Udo Eping, Volker Schroiff, Heinz Gross, Peter Steinl
  • Publication number: 20080179792
    Abstract: A cannula casting mould and casting method for improving quality by making it possible to cast a smooth surface. An opening is formed in the side of the front side and a casting mould for casting a cylindrical cannula formed with a liquid flow path that is connected inside to the opening that comprises a mould body in which a casting groove is formed, a core area placed in the casting groove forming a casting open area between the surfaces of the casting groove, and an angle pin prepared in the mould body in an elongated state of the area corresponding to the open area of the casting groove. Furthermore, the injection opening for injecting casting material into the casting opening is prepared on the opposite side of the core area centre of axis from the area where the angle pin was placed in the mould body.
    Type: Application
    Filed: December 12, 2007
    Publication date: July 31, 2008
    Applicant: Tyco Healthcare Group LP
    Inventors: Wataru Kurimoto, Hiromichi Itakura
  • Patent number: 7246937
    Abstract: The present invention provides an apparatus and system for mixing castable polyurethanes for dispensing into a golf ball mold for application to a golf ball sub-assembly. The apparatus comprises a mixing block for merging together at least two polyurethane components, then a temperature control chamber to remove excess heat that is produced by the exothermic reaction resulting from the mixing of the urethane components. The mixing of the components is by passing the components through a tortuous mixing path created by a disposable static mixer element. The mixed components are dispensed into the golf ball mold by a multiple lead nozzle assembly.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: July 24, 2007
    Assignee: Acushnet Company
    Inventors: Mark R. Verronneau, Richard T. Dix, David W. Sauerbrey, Christopher Cavallaro, Paul A. Puniello
  • Patent number: 7217384
    Abstract: A runner-less molding device for thermosetting resins and rubbers, characterized by a movable runner bush (15), through which an uncured or unvulcanized fluid material kept at a low temperature supplied from a pouring nozzle (31) can flow, is slidably arranged in a temperature controlling bush (13) communicating with a gate (4) of a cavity (1); an insulation space (A) is formed by moving the movable runner bush (15) apart from the gate (4) during heating; a valve pin (18) is movably inserted into said movable runner bush (15); and the valve pin (18) is arranged so as to open and close the gate (4) in accordance with a pouring operation of the fluid material.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: May 15, 2007
    Assignee: Seiki Corporation
    Inventors: Yoshiaki Tanaka, Masaaki Yoshida
  • Patent number: 6998085
    Abstract: A process for the production by a moulding process of a micro-cellular or non-cellular elastomeric polyurethane skin layer or, more generally, to a process for the production of a composite comprising a first layer shaped part, which is made by a moulding process from a polyurethane reaction mixture, and a second layer shaped part which is adhered to the first part to form the composite. In order to avoid the use of release agents on the back side of the first layer shaped part, and thus the negative effect on the adhesion of the second layer shaped part, and the penetration of reaction mixture on this back side between the slides (9–10) of the mould, the mould surface (4) is covered on the back side of the moulding with a removable flexible covering (12), with a removable rigid pre-shaped covering or with a permanent non-stick coating layer.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: February 14, 2006
    Assignee: Recticel
    Inventors: Hugo De Winter, Yvan Vanluchene Yvan
  • Patent number: 6893599
    Abstract: A mold for use in a reaction injection molding method and system to make a reinforced polymeric article having reduced surface defects includes a novel gating system. The mold includes a pair of mold sections which define a closed, article-forming cavity, an injection aperture, and an after-mixer which helps to form a plurality of flow paths which extend downstream from the injection aperture toward the article-forming cavity to further mix a curable, multi-component, reaction fluid mixture including a filler. The flow paths are also at least partially defined by an elongated film gate and an elongated runner which extends along and is in fluid communication with the film gate along substantially the entire length of the film gate. The runner has a closed end and an open end into which a fluid mixture for the article flows for distribution by the runner into the film gate.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: May 17, 2005
    Assignee: Patent Holding Company
    Inventors: Timothy B. Howell, Robert S. Rowley, John F. Murphy
  • Publication number: 20040241265
    Abstract: A rubber injection machine includes a top board with two grooves so that a material supply device is movably engaged with the grooves. A material injection device is movably connected to an underside of the top board and a nozzle of the material supply device is located above the material injection device. A lower board is connected to a hydraulic device and a mold assembly is supported on the hydraulic device. The material injection device is movable to match with the mold assembly and then removed from the mold assembly. The material injection device is not heated with the mold assembly.
    Type: Application
    Filed: May 27, 2003
    Publication date: December 2, 2004
    Inventor: Chin-Yung Peng
  • Publication number: 20040241264
    Abstract: A movable material injection device for a rubber injection machine includes two heat two heat isolating boards and a mediate part sandwiched between the two heat isolating boards. The movable material injection device is connected to a pushing device which sends the movable material injection device horizontally to the position between the top set and the mold assembly of the rubber injection machine. Runners are defined in the two heat isolating boards and the mediate part, and communicate with the cavities of the mold assembly and the material feeding device connected to the top set. The movable material injection device is removed from the mold assembly after rubber is injected into the cavities in the mold assembly so that the rubber in the runners of the movable material injection device is not heated with the mold assembly.
    Type: Application
    Filed: May 27, 2003
    Publication date: December 2, 2004
    Inventor: Chin-Yung Peng