With Accumulator, Trap Chamber, Or Serially Arranged Valves Between Charger And Mold Patents (Class 425/557)
  • Patent number: 10919092
    Abstract: A low-pressure powder injection molding machine, a kit and a method thereof. The machine has a feedstock container adapted to contain mixed feedstock, a mold and an injection device. The mold has an inlet and a cavity in which the feedstock material can set. The injection device has an injection port for supplying the mixed feedstock from the container to the mold by using pressure. The machine also has a moveable platform adapted to provide movement between the injection port of the injection device and the inlet of the mold in order to directly communicate the feedstock between the injection port and the inlet without using an intermediate conduit and thereby preventing any feedstock from setting or dissociating between the injection port and the inlet.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: February 16, 2021
    Assignee: ÉCOLE DE TECHNOLOGIE SUPÉRIEURE
    Inventors: Vincent Demers, Simon G. Lamarre, Jean-François Chatelain
  • Patent number: 9339962
    Abstract: A screw (20) for rotating within a material supply cylinder (22) to plasticize a material is able to reciprocate in the axial direction, between a retracted position away from a communicating passage (41) through which a plasticization chamber (23) leads to an injection chamber (33), and an advanced position at which the screw closes off the communicating passage. The screw position adjustment device includes: a thread (50) immovable with respect to the material supply cylinder, and having a through-hole (51) extending in the axial direction; a position adjustment nut (56) threadably engaged at the outside peripheral face of a thread for determining the retracted position; a fastener (58) for securing the position of the position adjustment nut; and a casing (72) covering the position adjustment nut and the fastener, and having an opening (73) for moving closer to the position adjustment nut and the fastener.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: May 17, 2016
    Assignee: SODICK CO., LTD.
    Inventor: Koichi Yokoyama
  • Patent number: 9090011
    Abstract: An injection unit for an injection molding machine includes a nozzle for dispensing melt to a mold, and a valve housing having a first port in fluid communication with the nozzle. The valve housing has a second port and a third port. A plasticizing barrel is in fluid communication with the second port. A shooting pot is in fluid communication the third port. A valve closure member is mounted in the valve housing. The valve closure member is moveable between a first position in which the first port is in fluid communication with the third port and in fluid isolation of the second port, and a second position in which the second port is in fluid communication with the third port and in fluid isolation of the first port. When in at least one of the first and second positions, fluid communication is provided between the respective ports through a gap provided between an outer surface of the closure member and an inner surface of the valve housing.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: July 28, 2015
    Assignee: ATHENA AUTOMATION LTD.
    Inventors: Robert D. Schad, Stephen Mracek, Ivan Nikolaev
  • Publication number: 20150110917
    Abstract: An injection molding system having a shooting pot assembly is disclosed. In one embodiment, the shooting pot assembly is in fluid communication with a mold and has an actuation direction that is substantially perpendicular to an injection axis of material injected into a mold cavity. In another embodiment, a shooting pot actuation system is a mounted on a side of a hot runner. In certain embodiments, the shooting pot actuation system includes a linear actuator operatively coupled with the shooting pot assembly to actuate the shooting pot assembly.
    Type: Application
    Filed: June 17, 2013
    Publication date: April 23, 2015
    Inventor: Manon Danielle Belzile
  • Publication number: 20150079221
    Abstract: An injection unit for an injection molding machine includes a nozzle for dispensing melt to a mold, and a valve housing having a first port in fluid communication with the nozzle. The valve housing has a second port and a third port. A plasticizing barrel is in fluid communication with the second port. A shooting pot is in fluid communication the third port. A valve closure member is mounted in the valve housing. The valve closure member is moveable between a first position in which the first port is in fluid communication with the third port and in fluid isolation of the second port, and a second position in which the second port is in fluid communication with the third port and in fluid isolation of the first port. When in at least one of the first and second positions, fluid communication is provided between the respective ports through a gap provided between an outer surface of the closure member and an inner surface of the valve housing.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventors: Robert D. Schad, Stephen Mracek, Ivan Nikolaev
  • Patent number: 8936457
    Abstract: A platen-supported system (105) for use with a molding-system platen structure (107), the platen-supported system (105) comprising: a frame assembly (103) connectable with the molding-system platen structure (107); and at least one plasticating device (201) supported by the frame assembly (103). A molding system (100) having a mold frame assembly (203) configured for supporting a molding assembly (200), and the at least one plasticating device (201) located within the mold assembly (200).
    Type: Grant
    Filed: March 26, 2011
    Date of Patent: January 20, 2015
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Manon Danielle Belzile, Daniel Hontheim
  • Patent number: 8870563
    Abstract: Plasticizing system for plasticizing solidified-resin particle, plasticizing system, comprising: housing assembly providing: (i) melt channel configured to receive solidified-resin particle, and (ii) opposite-facing surfaces spaced apart from each other, and defining, at least in part, convergene channel configured to receive the solidified-resin particle. Opposite-facing surfaces and the convergence channel form part of melt channel. Plunger assembly is movable, at least in part, relative to opposite-facing surfaces. Plunger assembly configured to move, at least in part, solidified-resin particle relative to opposite-facing surfaces along, at least in part, convergence channel. In response to relative movement between solidified-resin particle and opposite-facing surfaces, solidified-resin particle receives, in use, plasticization-inducing effect from opposite-facing surfaces.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: October 28, 2014
    Assignee: Husky Injection Molding Systems Ltd.
    Inventor: Manon Danielle Belzile
  • Patent number: 8858218
    Abstract: A tool for a resin transfer molding method comprises a cavity, a resin trap and a transition region, wherein the cavity is designed such that a component can be accommodated in it. Furthermore, the resin trap is integrated in the tool, and the transition region is designed such that with it a connection between the cavity and the resin trap can be established.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: October 14, 2014
    Assignees: Airbus Operations GmbH, Deutsches Zentrum füLuft- und Raumfahrt e.V. (DLR)
    Inventors: Ulrich Eberth, Martin Friedrich
  • Publication number: 20140255536
    Abstract: An injection apparatus includes a pressure accumulating portion, which is connected to an injection cylinder, and a speed reduction mechanism, which reduces the speed of the injection cylinder arranged in the injection apparatus. The speed reduction mechanism includes an actuating member, which moves integrally with a rod of an injection cylinder rod, and a restriction member, which is arranged in a flow passage for draining or supplying hydraulic oil from or to the injection cylinder, and variably narrows the flow passage in conjunction with movement of the actuating member.
    Type: Application
    Filed: October 2, 2012
    Publication date: September 11, 2014
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Kazuyuki Yamaguchi
  • Patent number: 8827690
    Abstract: A hollow body molding device having molten resin injected into a main cavity, fluid is pressure-injected through a pressure port after the injection of molten resin, a floating core moves to the outlet side, the molten resin is extruded from the outlet simultaneously with the movement of the floating core, and a hollow molded body is molded, the hollow body molding device having a floating core storage portion connected to the main cavity and stores the floating core moved by the pressurized fluid, an auxiliary cavity stores molten resin discharged from the main cavity and the floating core storage portion, communication passages and which communicate the floating core storage portion and the auxiliary cavity with each other; and an opening and closing means that opens and closes the communication passages by sliding movement. In the hollow body molding device, each inlet cross-sectional area B of the communication passages is specified.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: September 9, 2014
    Assignee: RP Topla Limited
    Inventors: Tomoyoshi Sakamoto, Minoru Ojiro, Takashi Hirose, Yasuhiko Hata, Hiroki Katagiri
  • Patent number: 8708683
    Abstract: A mold-tool system for use with a molding-system platen structure, the mold-tool system a frame assembly being connectable with the molding-system platen structure (107); and a set of shooting-pot assemblies being supported by the frame assembly, wherein control of each shooting-pot assembly of the set of shooting-pot assemblies is independent.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: April 29, 2014
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Manon Danielle Belzile, Paul R. Blais, Brian Esser, Patrice Fabien Dezon-Gaillard, Edward Joseph Jenko, John Knapp
  • Patent number: 8684726
    Abstract: A device for producing plastic moldings has an extruder and a molding tool arranged downstream of an extruder discharge opening. A screw is rotatably guided in the extruder and is axially displaceable to transfer liquid polymers, prepolymers or monomers present in the extruder into the molding tool. A nonreturn valve adjacent to a free end of the screw has a locking ring in contact with the inner circumferential wall of the extruder that includes a seal, which is applied to at least part of its outer circumference and which seals the locking ring against the circumferential wall of the extruder. The sealing material of the seal is selected from the group of the polymers, copolymers and polymer blends with a hardness lower than that of the circumferential wall of the extruder. A nonreturn valve and method of processing liquid prepolymers or monomers into plastic moldings is provided.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: April 1, 2014
    Assignee: Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung E.V.
    Inventors: Lars Fredrik Berg, Bernd Thoma
  • Patent number: 8647095
    Abstract: A resin transfer molding (RTM) molding device is designed to mold a fiber-reinforced plastic (FRP) molded body by injecting a resin composition into a mold and by impregnating the molded body therewith. The resin composition is a chain curing polymer (CCP). A CCP accommodating layer is disposed adjacent to an outer side of the molded body. The layer contains the CCP. The layer is provided with a Vf limit value, the value defined by the curing characteristics of the CCP and the characteristics of dissipation of heat from the CCP to the exterior. An element for separating the molded body is disposed between the body and the layer.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: February 11, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Noriya Hayashi, Hiroshi Mizuno, Koichi Hasegawa, Kazuo Ota
  • Patent number: 8628323
    Abstract: There is provided an injection unit.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: January 14, 2014
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Denise Davina Craig, Raymond Weiping Zhang
  • Patent number: 8506278
    Abstract: A resin transfer molding (RTM) molding device is designed to mold a fiber-reinforced plastic (FRP) molded body by injecting a resin composition into a mold and by impregnating the molded body therewith. The resin composition is a chain curing polymer (CCP). A CCP accommodating layer is disposed adjacent to an outer side of the molded body. The layer contains the CCP. The layer is provided with a Vf limit value, the value defined by the curing characteristics of the CCP and the characteristics of dissipation of heat from the CCP to the exterior. An element for separating the molded body is disposed between the body and the layer.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: August 13, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Noriya Hayashi, Hiroshi Mizuno, Koichi Hasegawa, Kazuo Ota
  • Publication number: 20130168899
    Abstract: A top-gate molding system for encapsulating semiconductor devices includes a plurality of mold cavities formed between a middle plate and a bottom plate, and a runner system formed between an upper plate and the middle plate. The runner system includes a runner with a plurality of reservoirs along its length, with a gate extending from each of the reservoirs to one of the cavities. A particle trap is positioned on the bottom of the runner between a sprue and a first one of the reservoirs, to capture contaminating particles in a flow of molding compound before the particles enter any of the reservoirs. The particle trap can be, for example, a notch or a channel extending transversely across the bottom of the runner, or a dummy reservoir upstream of the first of the plurality of reservoirs.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 4, 2013
    Applicant: STMICROELECTRONICS PTE LTD.
    Inventors: Jerome Teysseyre, Glenn de los Reyes
  • Publication number: 20130161867
    Abstract: An embodiment molding apparatus includes a main cavity and a buffer cavity connected with the main cavity.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 27, 2013
    Applicant: Infineon Technologies AG
    Inventors: Edward Fuergut, Juergen Hoegerl
  • Patent number: 8459977
    Abstract: A molded article transfer device (150, 250) is described herein that is associated, in use, with an injection mold (100, 200). The molded article transfer device (150, 250) includes a transfer structure (151, 251) that defines, amongst other things, a first aperture (154A) that is structured to receive a first molded article (102A) from a first mold stack (106A, 206A) of the injection mold (100). The transfer structure (151, 251) also defines a first branch channel (156A) and a first trunk channel (158A) through which the first molded article (102A) is passable. The first branch channel (156A) connects the first aperture (154A) with the first trunk channel (158A) for passing, in use, the first molded article (102A) thereto, whereafter it passes through the first trunk channel (158A) towards an exit (164A) thereof.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: June 11, 2013
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Pierre Glaesener, Halter Christophe
  • Publication number: 20120248654
    Abstract: An injection molding system (20) is provided including an extruder unit (22) having an injection actuator (38) for injecting a melt into a mold assembly (40); and a clamping unit (24), the clamping unit (24) configured to retain the mold assembly (40) during injection. A power pack (46) is provided, including a fixed-target accumulator assembly (62) operable to discharge hydraulic fluid at a fixed hydraulic pressure to the clamping unit (24) and a first pump being connected with the clamping unit (24), the first pump operable for charging the fixed-target accumulator assembly (62) to the fixed hydraulic pressure. The power pack (46) also includes a variable-target accumulator assembly (66) operable to discharge hydraulic fluid at a variable hydraulic pressure to the injection actuator (38) during the molding cycle; and a second pump connected to the variable-target accumulator assembly (66), the second pump operable for charging the variable-target accumulator assembly (66) to the variable hydraulic pressure.
    Type: Application
    Filed: November 11, 2010
    Publication date: October 4, 2012
    Applicant: Husky Injection Molding Systems Ltd.
    Inventors: Trevor Paul Van Eerde, Miroslaw Kowalczyk
  • Publication number: 20120217679
    Abstract: As an injection screw 2 applies pressure, a holding pressure plunger 22 is moved backward under the pressure of a resin to flow the resin into a holding pressure path 9, and the resin in a resin path 6 is pressurized (primary holding pressure process). A shutoff plunger 12 is closed, and the resin in the resin path 6 and the holding pressure path 9 is pressurized by the holding pressure plunger 22 (secondary holding pressure process). Further, the shutoff plunger 12 is opened, and the holding pressure plunger 22 is moved forward until its tip projects into the resin path 6 to discharge all the resin in the holding pressure path 9 to the resin path 6, whereby the resin beside the injection screw 2 as compared with the shutoff plunger 12 is held with respect to the holding pressure path 9.
    Type: Application
    Filed: May 9, 2012
    Publication date: August 30, 2012
    Inventors: Hiroshi Horigome, Yasuhiro Hidaka
  • Patent number: 8251692
    Abstract: A sprue bushing includes a head, and a main body. The main body is connected to an end of the head. The main body defines at least one lateral channel. The at least one lateral channel extends through a sidewall of the main body. The sprue bushing defines a sprue and at least two longitudinal channels. The sprue extends through the head and the main body along a center axis of the sprue bushing. The at least two longitudinal channels extend through the head into the main body. One of the at least one lateral channel communicates with two of the at least two longitudinal channels.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: August 28, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Hou-Yao Lin
  • Patent number: 8246336
    Abstract: An injection molding machine includes a hydraulic driving system providing hydraulic power; a molding system configured for molding a workpiece; and an injection system configured for injecting a molten material to the molding system with the hydraulic power. The injection system includes a cylinder and a piston movably received in the cylinder. The cylinder is surrounded by one of an alternating current-charged coil of wire and a closed-loop coil of wire, and the piston is surrounded by the other, whereby the piston receives acceleration for movement in the cylinder.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: August 21, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Hsiang-Hung Chen
  • Publication number: 20120195996
    Abstract: A plastic material injection molding system includes a feeding nozzle, a forming mold having a cave therein, and a material-passing mold having a runner therein. The runner communicates both the feeding nozzle and the cave, and has two curved parts therein for slowing down the plastic material injected from the feeding nozzle in order.
    Type: Application
    Filed: July 27, 2011
    Publication date: August 2, 2012
    Applicant: Quanta Computer Inc.
    Inventors: Hsien-Ming WU, Chao-Hung Lin
  • Publication number: 20120082753
    Abstract: There is provided an injection unit.
    Type: Application
    Filed: May 28, 2010
    Publication date: April 5, 2012
    Applicant: HUSKY INJECTION MOLDING SYSTEMS LTD
    Inventors: Denise Davina Craig, Raymond Weiping Zhang
  • Publication number: 20120018927
    Abstract: To prevent defective molding, a base member is set between split molds of a metal mold, a molding rubber material is injected into an endless shape cavity defined between the base member and the split mold, an injection amount thereof is made such that the molding rubber material fills the cavity and thereafter flows from an air vent hole open to a confluence position in the cavity into a surplus material reservoir provided downstream but does not fill the surplus material reservoir, pressure drop due to flow resistance is caused to the molding rubber material flowing into the surplus material reservoir, and thereby pressure in the cavity is maintained to be not lower than pressure required to mold a gasket and lower than pressure causing leakage from the cavity.
    Type: Application
    Filed: February 19, 2010
    Publication date: January 26, 2012
    Applicant: NOK CORPORATION
    Inventor: Shigeru Watanabe
  • Patent number: 8038433
    Abstract: An injection molding tool having a first section moveable with respect to a second section. In a first position, the first section contacts the second section along a parting line and forms a cavity. An expandable cavity part is moveably mounted with respect to the second section. In a closed condition, the expandable cavity part is in a retracted or molding position. The expandable cavity part can be moved away from the molding position or the closed condition to a release position or an expanded condition with allows access to molded part or other article. A core pin is either moveably mounted with respect to the expandable cavity part or is in a fixed position with respect to the expandable cavity part.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: October 18, 2011
    Assignee: Progressive Components International Corporation
    Inventors: James W. Cullison, David Helenius, Glenn Starkey
  • Publication number: 20110248427
    Abstract: The invention relates to a plasticizing and injection unit (1) of an injection moulding machine To inject especially smallest amounts of plastic melt in an injection moulding tool for injection moulding of small and smallest parts in a process optimized way the unit comprises a screw cylinder (2) in which a plasticizing screw is arranged rotatable and axially movable and an injection element (4) comprising a piston-cylinder system (5, 6), wherein a metered amount of plastic melt, which is deposited in a section (7) of a cylinder (6), is expelled via an injection nozzle (8) into an injection moulding tool by an axial movement of a piston (5) in the cylinder (6), wherein a flow path (9) is arranged between the end of the screw cylinder (2) and the section (7) of the cylinder (6) and wherein the flow path (9) is free from valve elements. Furthermore, the invention relates to a method for injection moulding of a part.
    Type: Application
    Filed: March 25, 2011
    Publication date: October 13, 2011
    Applicant: WITTMANN BATTENFELD GMBH
    Inventor: Martin GANZ
  • Publication number: 20110244070
    Abstract: A nozzle valve gate for injecting hot plastics into an injection mold includes a body having a passage for flow of the plastics to an outlet and forming an actuator chamber. A nozzle part is connected to the body and extends longitudinally to a nozzle tip having an injection aperture. The nozzle part has a flow passageway connected to the plastics outlet for conducting the plastics melt to the injection aperture and a machined bore forming a guide passageway. A valve pin is movable in the guide passageway between open and closed positions. A piston is connected to the pin and is slidable in the actuator chamber. An elastomeric wiper seal extends around the valve pin adjacent the machined bore, is wear resistant, and can withstand high temperatures of at least 200° C. A micro gap is formed between the pin and the machined bore.
    Type: Application
    Filed: April 6, 2010
    Publication date: October 6, 2011
    Applicant: Mold Hotrunner Solutions, Inc.
    Inventor: Harald Schmidt
  • Patent number: 7993554
    Abstract: A method for the manufacture of a molding composition from a raw material melt which is charged with an additive includes the steps: charging a conveyor apparatus with a raw material which includes a liquid or gooey pasty composition or a granulate; converting the raw material into a raw material melt by heat supply to the raw material; charging the raw material melt with an additive; mixing of the raw material melt with the additive to produce a molding composition; and discharging the molding composition from the conveyor apparatus. The charging of the raw material melt with the additive takes place through a metering device which is arranged in a passage section of the conveyor apparatus and/or subsequent to the conveyor apparatus with the raw material melt flowing through and/or around the passage section. The metering device includes at least one metering element which is arranged in a recess of the passage section.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: August 9, 2011
    Assignee: Sulzer Chemtech AG
    Inventors: Christian Schlummer, Sasan Habibi-Naini
  • Patent number: 7980844
    Abstract: Torques and resin pressures applied to a screw are detected during the forward movement of the screw and coefficients of correlation between the detected torques and resin pressures are calculated. When the check ring is open, the flight of the screw receives resin pressure, and the screw torque increases proportionally to the resin pressure due to resin backflow, so the coefficients of correlation between the screw torques and the resin pressures are higher than a reference value. When the check ring closes, the flight of the screw no longer receive resin pressure, so the screw torque decreases and the coefficients of correlation become lower than the reference value. The check ring is determined to be closed when the coefficients of correlation become lower than the reference value.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: July 19, 2011
    Assignee: Fanuc Ltd
    Inventors: Junpei Maruyama, Satoshi Takatsugi
  • Patent number: 7972131
    Abstract: A plastification and injection unit in injection-molding machines for processing of polymer materials, for example rubber, has a plastification screw that is disposed so as to rotate in a screw cylinder, which simultaneously represents the injection piston. The screw cylinder is disposed in an injection cylinder, in an axially displaceable manner. The injection cylinder can be connected with the sprue channel of an injection-molding die by way of a nozzle, and the injection piston has a back-flow barrier. The screw is axially displaceable in the screw cylinder by means of a separate drive. The screw tip projects out of the screw cylinder and has a closure body having a sealing surface for contact with the face surface of the screw cylinder.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: July 5, 2011
    Assignee: Klöckner Desma Elastomertechnik GmbH
    Inventors: Olaf Kuechler, Edwin Baumann, Volker Krell
  • Patent number: 7955070
    Abstract: A molding device including a mold having a stationary portion arranged on a stationary platen of a press, and a movable portion arranged on a movable platen of the press, at least one injection channel for injecting material into the movable portion of the mold, and a feeder device for feeding the mold with plastics material, the feeder device including a stationary installation including a first metering device for metering a first quantity of material. The feeder device includes at least one second metering device arranged on the movable platen, the second metering device being connected to the first metering device in such a manner as to be fed with plastics material by said first metering device, and being connected to the injection channel for injecting material into the movable portion of the mold in such a manner as to be capable of feeding it with plastics material.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: June 7, 2011
    Assignee: Inoplast
    Inventors: Paul Brialon, Christophe Genissieux, Jean-Paul Dhuicque, Gilbert Ponson
  • Publication number: 20110045123
    Abstract: In an injection molding die, there is defined a cavity for a frame or a cavity for the frame and an auxiliary cavity communicating with the cavity for the frame, and into the cavity for the frame or the auxiliary cavity, there is injected a melted resin from a runner through a gate, and a section of the gate has a width of 1 to 5 mm in the direction of a thickness of a plate glass and a width of 10 mm or more in the direction parallel with a side of the plate glass but smaller than a side length of the plate glass. When this die is practically used, a load that would be applied to a peripheral portion of the plate glass during injection molding is reduced, so that when the frame is integrally molded to the plate glass by injection molding, undesired breakage of the plate glass is suppressed.
    Type: Application
    Filed: May 1, 2009
    Publication date: February 24, 2011
    Applicant: Central Glass Company, Limited
    Inventors: Osamu Nakata, Mitsuhiro Takayama
  • Publication number: 20110037199
    Abstract: A resin containment and injection system includes a tool, a resin storage well provided in the tool, a composite layup location provided on the tool and a vacuum bagging film provided over the resin storage well. The vacuum bagging film is configured to define a volume in the resin storage well responsive to establishment of a pressure equilibrium across the vacuum bagging film and substantially eliminate the volume responsive to application of positive pressure against the vacuum bagging film.
    Type: Application
    Filed: August 14, 2009
    Publication date: February 17, 2011
    Inventor: Matthew J. Young
  • Patent number: 7845272
    Abstract: A system (50) is provided for the production of elongated comestible products such as hot dogs, without the use of traditional casings. The system (50) includes a circular pattern of arrays (92) of elongated, open-ended, extruded synthetic resin cooking tubes (94, 96) within a rotatable cylindrical heating drum or housing (70). The tube housing (70) and arrays (92) are incrementally rotated and at each stop position certain of the tubes (94, 96) are filled with portions of meat emulsion (590) and alternating plugs (208), while previously filled tubes (94, 96) containing cooked product are unloaded, and other unfilled tubes are internally coated with a lubricant (e.g., a mixture of lecithin and vegetable oil). Energy exchange media such as hot water and/or steam are used within the housing to continuously cook the emulsion portions within the tubes (94, 96) to the desired extent.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: December 7, 2010
    Assignee: Marlen International, Inc.
    Inventors: Richard Powers, Adam E. Anderson, Paul Hardenburger
  • Patent number: 7815838
    Abstract: In a method of operating an injection molding machine of a type having an injection plunger for pushing melt from an injection space anteriorly of an injection plunger into an injection mold, a plasticizing screw of an extruder is continuously operated to continuously feed melt through a melt channel into the injection space. A passage through the melt channel is closed to allow backup of melt backwards into the extruder, and the injection plunger is moved forward to inject a shot amount from the injection space into the injection mold.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: October 19, 2010
    Assignee: KraussMaffei Technologies GmbH
    Inventor: Rainer Zimmet
  • Patent number: 7790092
    Abstract: A system is provided for forming solid ink sticks comprising a molten ink delivery station for introducing molten ink material into a forming tub to form a solid ink stick. The forming tub includes an open top for receiving the molten ink material and a cavity defining a lower portion of a solid ink stick shape. The system includes a top surface conditioning station for altering the top surface of the ink material introduced into the cavity of the forming tub.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: September 7, 2010
    Assignee: Xerox Corporation
    Inventors: Brent Rodney Jones, Gustavo J. Yusem, Terry Alan Smith, Frederick T. Mattern, Edward F. Burress, Ernest Isreal Esplin
  • Publication number: 20100173148
    Abstract: An injection-compression molding apparatus for producing a shaped plastic part has a first mold plate and a second mold plate, which delimit a component cavity and between which there is a gap in the non-closed state. The apparatus further comprises a plastics compound feeding arrangement for introducing plastics material through the gap into the component cavity, having a gate cavity which is substantially separated from the component cavity when the gap is closed.
    Type: Application
    Filed: July 24, 2009
    Publication date: July 8, 2010
    Inventor: Franz Josef Summerer
  • Patent number: 7713045
    Abstract: An extrusion-based injection molding system is designed for use in food processing applications. Interior surfaces, such as the barrel exit line and/or fill line, of the system may be coated with a friction-reducing agent.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: May 11, 2010
    Assignee: Sergeant's Pet Care Products Inc.
    Inventors: Li Nie, Michael Douglas Parker, Sukh D. Bassi, Clodualdo C. Maningat
  • Patent number: 7704623
    Abstract: A mold for a use of making a fuel cell separator comprises: a first flow path forming portion to form a cooling medium flowing path, or to form an oxidizing gas flowing path, or to form a fuel gas flowing path; and an injection gate to shoot out a forming material settled on the first flow path, and/or disposed at near place with the first flow path.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: April 27, 2010
    Assignee: Panasonic Corporation
    Inventors: Hideo Ohara, Hikaru Murakami, Masaaki Miyoshi, Kazuhito Hatoh, Takeshi Tomizawa
  • Patent number: 7670537
    Abstract: Active decompression to prevent melt drool from a mold (12, 14) or runner system (20) is achieved through the selective coupling and de-coupling of an injection piston (34) to a plunger (38). Following successive injection (FIG. 5a) and hold phases (FIG. 5b) of an injection molding process (FIG. 5), the runner and channel system is partially de-compressed (FIG. 5c) by drawing back together, over a short distance, the plunger (38) and the injection pressure (34) as one unit. The injection piston is then mechanically de-coupled from the plunger (FIG. 5e), with the injection piston (34) withdrawn to essentially its final shot position, but minus a customary packing distance (?). Plastic melt (100), extruded into a shooting pot (28) positioned in front of the plunger (38), is permitted to push the plunger backwards, but now with minimal work expenditure. When the plunger again contacts (FIG. 5f) the injection piston (34), melt pressure now causes both units to be moved back to reach a final shot size volume.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: March 2, 2010
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Andreas Ujma, Enrique Juaristi-Tello
  • Publication number: 20100032855
    Abstract: An object is to improve the quality of molded articles and enable stable molding to be performed. A plasticizing apparatus includes a cylinder member having a molding material supply opening at a predetermined position, a molding material being supplied into the cylinder member via the molding material supply opening; and a metering member rotatably disposed within the cylinder member and adapted to plasticize the molding material when the metering member is rotated. A gas-flow-forming medium hole is formed in the cylinder member at a predetermined position. An open-close apparatus (37) is provided so as to open and close the gas-flow-forming medium hole. Since the open-close apparatus (37) is provided, a gas-flow-forming medium outside the cylinder member can be caused to enter the cylinder member.
    Type: Application
    Filed: December 27, 2006
    Publication date: February 11, 2010
    Applicant: Sumitomo Heavy Industries, Ltd.
    Inventors: Kenichirou Inoue, Hiroaki Hayasaki
  • Publication number: 20100019405
    Abstract: A tool for a resin transfer moulding method comprises a cavity, a resin trap and a transition region, wherein the cavity is designed such that a component can be accommodated in it. Furthermore, the resin trap is integrated in the tool, and the transition region is designed such that with it a connection between the cavity and the resin trap can be established.
    Type: Application
    Filed: November 7, 2006
    Publication date: January 28, 2010
    Applicants: AIRBUS DEUTSCHLAND GMBH, DEUTSCHES ZENTRUM FÜR LUFT-UND RAUMFAHRT E.V. (DLR
    Inventors: Ulrich Eberth, Martin Friedrich
  • Patent number: 7614870
    Abstract: The present invention relates to an injection unit of a two-stage injection molding machine having an injection device and a meter device for providing plastic to the injection device. The injection motor of the injection device is secured to the base and does not move along with the injection linkage member so as to decrease the movement momentum and improve the injection response and acceleration capability. Additionally, the injection device can adopt a plurality of injection motors for meeting the injection capability requirement without employing high power injection motors. The length of the injection molding machines is relatively shortened, thus the problem of the prior arts is solved.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: November 10, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Ming-Chi Chen, Wen-Hung Feng, Cheng-Jien Chen
  • Patent number: 7615181
    Abstract: A rubber injection molding device comprising: a mold having a molding cavity therein; an injecting machine including an injection cylinder having an injection chamber for storing a rubber therein, and an injection plunger for injecting the rubber from the injection chamber into the molding cavity by means of an advancement of the injection plunger; a feed machine having a feed cylinder with a feed aperture formed at a tip end thereof and connected with the injection chamber through a feed duct, and being adapted to feed into the injection chamber, through the feed duct the rubber in a mixed state, and a pushing assembly which pushes into the injection chamber the rubber that remains within the feed duct after a feed operation of the rubber by the feed machine. A manufacturing method of a rubber product by using the molding device is also disclosed.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: November 10, 2009
    Assignees: Tokai Rubber Industries, Ltd., Sanyu Industries, Ltd.
    Inventors: Yukio Inukai, Shigeki Kato, Takahiro Aoi, Norihito Kimura, Takahiro Imai, Yuki Akatsuka, Masami Ono
  • Patent number: 7559756
    Abstract: Apparatus and method whereby coinjection molding shooting pot actuation structure is configured to be installed in a coinjection hot runner with a coinjection nozzle, the coinjection nozzle having at least two melt channels ending at the same gate. The shooting pot is preferably disposed in one of a mold cavity half and a mold core half. A shooting pot piston is configured to discharge a melt from the shooting pot. A transmission structure is configured to (i) extend through one of the mold cavity half and the mold core half, and (ii) to transmit a force to the shooting pot piston. Actuation structure is disposed on the opposite side of the mold cavity half from the coinjection hot runner, and is configured to provide the force to the transmission structure. This configuration conserves space in the mold.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: July 14, 2009
    Assignee: Husky Injection Molding Systems, Ltd.
    Inventor: Roberto D. Sicilia
  • Publication number: 20090160091
    Abstract: A method for forming a turbine or compressor wheel from a semi-solid material uses a die assembly that has an inner cartridge made up from a plurality of segments and an outer die. The semi-solid material is injected under pressure and high temperature into the die so that it flows into blade cavities defined between the segments of the cartridge. The cartridge is removed from the outer die and the segments are then separated to release the wheel.
    Type: Application
    Filed: June 29, 2006
    Publication date: June 25, 2009
    Applicant: Cummins Turbo Technologies Limited
    Inventors: Qiang Zhu, Andrew Phillip Jackson
  • Patent number: 7547406
    Abstract: A method of making shaped articles from highly condensed polyester melt and especially preforms for the blow molding of food and especially beverage containers. A melt is continuously withdrawn from the polycondensation reactor and is fed to the shape-imparting units, especially a multiplicity of injection-molding machines without solidification between the final reactor and the injection molders and without degassing between the final reactor and the injection molding machines.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: June 16, 2009
    Assignee: Lurgi Zimmer GmbH
    Inventors: Brigitta Otto, Roland Schäfer, Holger Bachmann, Ludwig Hölting, Stefan Deiss
  • 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: 20090115105
    Abstract: An apparatus for injection molding includes at least one mold part having at least one surface. The mold part has at least one shaped portion. At least one substantially closed cavity region is disposed within the at least one surface. The one cavity region is designed for molding at least part of an interstitial mass. The apparatus further includes at least one gate disposed on the at least one surface for providing fluid communication to the at least one cavity region and at least one flow restrictor positioned on the mold part for initially directing flow of the interstitial mass to the at least one shaped portion. In one embodiment, flow restrictors initially direct the interstitial mass to an upper portion of the shaped portion.
    Type: Application
    Filed: October 28, 2008
    Publication date: May 7, 2009
    Inventors: Roman Czernik, Steven Bartlett