Patents Examined by Jill L. Heitbrink
  • Patent number: 9833936
    Abstract: An injection-molding mold configured for being mounted in an injection-molding apparatus for automated molding of work pieces in plastics, said injection-molding mold comprising at least two separate mold parts that are separated by a mold separation face, and wherein at least one first mold part (1) is configured with an outer frame (2) in which is configured at least one space (14) which is open relative to the mold separation face, in which is mounted at least one exchangeable mold insert (3), and wherein the exchangeable mold insert (3) has a support plate (16) and the mold insert has a recess (20) into which the support plate (16) extends to the effect that the support plate (16) secures the mold insert (3) in the open space (14).
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: December 5, 2017
    Assignee: LEGO A/S
    Inventor: Jens Stamp Lambæk
  • Patent number: 9827701
    Abstract: An injection molding apparatus including: a valve pin driven by an actuator, the valve pin extending axially through at least a portion of the channel length of the fluid flow channel, the fluid flow channel including a throat, downstream flow of the injection fluid being restricted by a bulb portion of the pin, the valve pin having an intermediate position where downstream flow of injection fluid is unrestricted and a fully downstream position where downstream flow of injection fluid is stopped at both the gate and at the throat, wherein the actuator is driven by a valve assembly comprised of a spool mechanically driven by first and second actuators or solenoids that each separately engage the spool at opposing axial ends to effect movement of the spool back and forth between the drive fluid flow positions.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: November 28, 2017
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: Vito Galati, Zhuang Rui Tan
  • Patent number: 9815233
    Abstract: A substantially constant pressure injection molding method and machine that forms molded parts by injecting molten thermoplastic material into a mold cavity at a substantially constant pressure. As a result, the mold cavity is filled with molten thermoplastic material by advancing a continuous flow front of thermoplastic material from a gate to an end of the mold cavity.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: November 14, 2017
    Assignee: IMFLUX, INC.
    Inventors: Gene Michael Altonen, Michael Thomas Dodd, Natalia Maria Ramon Martinez, Kimberly Nichole McConnell, Danny David Lumpkin, Vincent Sean Breidenbach, John Russell Lawson
  • Patent number: 9802351
    Abstract: An in-mold shutter (140) for embedding in an injection mold (100, 200, 300) is described herein. The in-mold shutter (140, 240, 340, 440, 540) includes a shutter actuator (148, 548) that is configured to selectively engage a first mold shoe (130) of the injection mold (100, 200, 300) with a platen of a mold clamping assembly (996) to hold the first mold shoe (130) in an extended position (E), along a mold-stroke axis (X), during a step of molding a first molded article (102A) in the injection mold (100, 200, 300). Also described herein is a molded article transfer device (150, 250) for use with the injection mold (100, 200, 300). The molded article transfer device (150, 250) includes a shuttle (154) that is slidably arranged, in use, within the injection mold (100, 200, 300).
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: October 31, 2017
    Assignee: HUSKY INJECTION MOLDING SYSTEMS LTD.
    Inventors: Christophe Halter, Pierre Glaesener, François Styga
  • Patent number: 8163208
    Abstract: A thermoplastic injection molding system and method of use is described for molding parts from heated plastics and other organic resins. The machine uses heat sources located along the barrel to heat the source material while an auger screw transports the source material in the barrel. This transport step does not shear the source material, nor does it use friction to produce the heat necessary to melt the source material. The material becomes substantially liquid or melted during the heating process, and the melted material is forced, by the auger screw, into a chamber whereupon a plunger, situated concentrically with the auger screw, injects the material from the chamber into a mold. Sensors located along the barrel and in the chamber ensure consistency between mold cycles. The controller dynamically adjusts the injection molding process to achieve more consistent and reliable molded parts.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: April 24, 2012
    Assignee: Koalesce, Inc.
    Inventor: Richard Ernest Fitzpatrick
  • Patent number: 8016581
    Abstract: Apparatus for controlling the rate of flow of fluid material from an injection molding machine to a mold cavity, the apparatus comprising: a manifold receiving the injected fluid material and having a delivery channel that delivers the fluid material to the mold cavity; a bushing or insert or plug mounted in an aperture in the manifold having a rate flow control channel communicating with the delivery channel of the manifold; a pin having a flow control member; the pin being adapted for back and forth axial movement within the rate flow control channel wherein a surface of the flow control member is controllably engageable or sealable against an interior surface area portion of the rate flow control channel of the bushing or insert or plug.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: September 13, 2011
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: Michael Vasapoli, Sergio Antunes, Mark Moss, Christopher W. Lee, Mark Doyle
  • Patent number: 8002540
    Abstract: A neck block of a molding tool for the production of a hollow body preform by means of injection molding, wherein the neck block has a main body with a shaping surface which is adapted to the external contour of a neck portion of the hollow body preform to be produced and is provided to come into contact in the injection molding operation with the neck portion of the hollow body preform, wherein furthermore there is provided at least one cooling passage for a cooling fluid which at least portion-wise extends substantially parallel to the shaping surface. The neck block is further provided with an inlet and an outlet and an inlet passage and an outlet passage which connect the inlet and the outlet respectively to the cooling passage. The cooling passage is arranged closer to the shaping surface than the inlet and the outlet.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: August 23, 2011
    Assignee: MHT Mold & Hotrunner Technology AG
    Inventors: Witold Neter, Marek Hoenisch, Klaus Wegmann, Stefan Schweininger, Christian Wagner
  • Patent number: 8003038
    Abstract: There is disclosed a process for producing a resin molded article by using a resin into which fine metal particles are so introduced as to be hardly dissolved at the melting temperature of the resin and as to obtain high solubility in a high-pressure carbon dioxide. This process comprises the steps of forming a high-pressure fluid by dissolving, in a high-pressure carbon dioxide, a fluorine-containing metal complex and a fluorine-based solution capable of dissolving the same metal complex; introducing the high-pressure fluid into a heated and molten resin; and molding the resin having the high-pressure fluid introduced thereinto, to shape the molded article.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: August 23, 2011
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Tetsuya Ano, Atsushi Yusa, Satoshi Yamamoto, Toshiyuki Ogano
  • Patent number: 7998390
    Abstract: A multi-material injection molding machine includes stationary and moving platens holding cores and first and second injection units for delivering first and second molding materials. The moving platen is slidable towards and away from the stationary platen. Further provided is a rotational distribution unit movable between the stationary platen and the moving platen and defining first cavities on one side and second cavities on an opposite side. The first cavities are for mating with cores to define first mold cavities and the second cavities are for mating with cores to define second mold cavities. Also provided are a rotational actuator for rotating the rotational distribution unit and a molding material delivery apparatus for delivering one or more of the first molding material to the first cavities and the second molding material to the second cavities.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: August 16, 2011
    Assignee: Mold-Masters (2007) Limited
    Inventors: George Olaru, Harold Godwin
  • Patent number: 7993737
    Abstract: The invention provides a natural fiber-reinforced thermoplastic resin injection molding having an excellent ability to discharge static electricity. The natural fiber-reinforced thermoplastic resin injection molding is obtained by injection-molding with using natural fiber-reinforced thermoplastic resin pellets as a molding feedstock containing natural fibers as reinforcing fibers, has a natural fiber content of from 20 to 60 wt %. The natural fibers have an average length of from 1.5 to 4.0 mm. The natural fiber-reinforced thermoplastic resin injection molding has an electrostatic voltage half-life, as determined by the half-life measurement method specified in JIS L 1094, of less than 40 seconds.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: August 9, 2011
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Tatsuya Tanaka, Takayasu Fujiura, Naoki Kikuchi, Naoyuki Tashiro, Atsushi Yamamoto, Tsutomu Nagaoka, Kentaro Okuno
  • Patent number: 7993548
    Abstract: The invention concerns a novel sample tube and a method of manufacturing a such a sample tube. According to the method an oversized mold cavity is formed with an opposing pair of mold members of an injection molding machine, the mold members being movable relative to each other and between which mold members the sample tube is formed. A volume of resin exceeding the prescribed volume of the sample tube is injected into the cavity and force is applied to said mold members in order to reduce the volume of said mold cavity for displacing molten polymer in the cavity and for compressing the polymer to form said sample tube. By means of the invention, sample tubes and vessels having ultra thin walls can be manufactured.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: August 9, 2011
    Assignee: Bioinnovations Oy
    Inventor: Bruce R. Turner
  • Patent number: 7993555
    Abstract: Provided are a structure of molding tools and an injection molding device that can easily perform molding of an optical element even from a resin of low velocity or the like and can suppress any negative effects by air. The structure of the molding tools includes between the molding tools (61, 62) a fixed molding tool (61) and a movable molding tool (62) and an O-ring (63a) for keeping air tightness and a resin seal (63b) for preventing any resin leakage. The O-ring (63a) performs decreasing of the pressure in a cavity (CV) formed by joining the molding tools (61, 62), whereby the vacuum molding in which resin supply and resin curing is carried out under a decreased pressure can be performed. Accordingly, the effects such as prevention of air bubbling due to air trapping by injected resin within the cavity (CV) can be attained. Furthermore, the resin seal (63b) can prevent any resin leakage from the molding tools (61, 62) even when the resin having a low viscosity is used.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: August 9, 2011
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Takemi Miyazaki, Shigeru Hosoe, Yuiti Fujii
  • Patent number: 7988904
    Abstract: A resin-molding mold device is provided for carrying out the resin molding process to mold the resin molded article, wherein when cooling after charging a molten synthetic resin into a cavity (14) and maintaining the pressure, a movable core (11) is urged to the side in which the capacity of the cavity (14) is decreased. This enables a resin molded article having a proper shape to be reliably molded by preventing a design surface from parting from a cavity wall surface when die-molding the resin molded article by charging a molten synthetic resin into a cavity formed from a plurality of dies.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: August 2, 2011
    Assignee: Kabushiki Kaisha Honda Lock
    Inventor: Yuuichirou Noda
  • Patent number: 7988902
    Abstract: A one-piece, microfluidic package with standardized multiple ports allows devices to be connected in series without resorting to extra tubing connections or bonding processes. The one-piece construction consists of microfluidic channels that can be connected to fluid reservoirs and other fluidic components fabricated with interconnecting and interlocking ports. The size of the friction-fit interlocking ports is designed such that the smaller male port fits snugly into the larger female port in a manner that is leak-free and adhesive-free. The friction-fit ports can also be reconfigured. Thus, the interconnection of microfluidic packages can be in an extended series including connections to sensors and devices such as a bio/biochemical/chemical sensor chip, a dielectrophoretic manipulator chip, and a microfluidic reactor chip.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: August 2, 2011
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventor: Hyoung Jin Cho
  • Patent number: 7985364
    Abstract: A method of manufacturing an injection molded product. Thermoplastic is injected through a runner system and into a gate member. The gate member is generally V-shaped and thermoplastic is displaced through the gate into a mold cavity at a nearly perpendicular angle to the surface of the indicia carrier to hold the indicia carrier against the mold cavity. This allows the indicia carrier to be fused to the thermoplastic body during the making of a product.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: July 26, 2011
    Assignee: Lomont Molding, Inc.
    Inventor: Virgil Allen Watson
  • Patent number: 7981334
    Abstract: An injection molding machine and a method for mold-adjusting are provided. The injection molding machine comprises a mold-adjusting mechanism mounted to one side of the fixed platen and being coaxial with the tie bars. Each of the mold-adjusting mechanisms is constructed the same comprising a support frame (11), a motor (12), a mold-adjusting driving wheel (13), a mold-adjusting driven wheel (14), a hydraulic cylinder for positioning (15), a sensor and a control system.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: July 19, 2011
    Assignee: Chen Hsong Asset Management Limited
    Inventor: Chenyuen Chiang
  • Patent number: 7981333
    Abstract: Test molding is performed by sequentially clamping a mold 2 with a mold clamping force (100%, 80%, 70%, . . . ) obtained by sequentially lowering a mold clamping force by a predetermined amount from the maximum mold clamping force (100%); with mold position sensors 4 provided on outer surfaces 3cf and 3mf of a fixed platen 3c supporting a fixed mold 2c of the mold 2 and a movable platen 3m supporting a movable mold 2m of the mold 2, a relative position (mold position Xc) of the movable platen 3m with respect to the fixed platen 3c in an injection process is detected; and, when at least a variation that meets predetermined conditions is produced on the mold position Xc, a mold clamping force obtained by increasing a mold clamping force at a time of occurrence of the variation by a predetermined amount is set as a proper mold clamping force Fs.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: July 19, 2011
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Yoshiaki Kudo, Takashi Hakoda, Kiyoshi Nakamura, Susumu Morozumi
  • Patent number: 7972544
    Abstract: While a second layer resin is being charged, a movable platen is moved backward to reach a given movable platen position (S1) to enlarge the capacity of a second cavity. After the completion of charging of the resin, a toggle mechanism is promptly driven to reduce the second cavity capacity to reach a given movable platen position (S2), and after the lapse of a given time, the toggle mechanism is driven again to enlarge the second cavity capacity to reach a given movable platen position (S3). Thus, a high quality multilayer injection molded article which has small variations in the wall thickness, dimension, and mass and which is free from deformation or warpage can be stable obtained.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: July 5, 2011
    Assignee: Ube Machinery Corporation, Ltd.
    Inventors: Akio Okamoto, Kazuaki Miyamoto
  • Patent number: 7968033
    Abstract: A food container in the form of a paper cup having a top edge and a plastic rim structure which is injection molded to the edge so as to seal the edge and be firmly be adhered thereto. The rim structure exhibits a flat annular upper surface to which a heat sealable closure made of metal foil with heat sealable plastic underlayer can be attached after filling the container with a suitable food product.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: June 28, 2011
    Inventor: Ivonis Mazzarolo
  • Patent number: 7959844
    Abstract: Plastic containers are injection molded of HDPE blow molding grade resin having a density of about 0.960 to 0.965 g/cc and a melt index of about 0.7 to 1.0 g/10 min. at injection temperatures of 570° F. to 670° F. and mold cavity pressures of 20,000 psig to 27,000 psig. Relatively thin walled, rigid, livestock feed containers can be manufactured using about 20% to 50% less material while retaining strength and durability comparable to containers molded of HDPE injection molding grade resins.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: June 14, 2011
    Assignee: Maxi-Life, Inc.
    Inventors: Victor A. Sahm, III, Charles Hansen