Patents Examined by James P. Mackey
  • Patent number: 10562250
    Abstract: A NPT tread layer mold and molding process. The mold may include an inner mold portion that supports a built-up green NPT tread layer, and an outer mold portion that cooperates with the inner mold portion to cure the tread layer and to form a tread pattern in an outer surface thereof. The inner mold portion may comprise two halves, each having a plurality of wall segments that collectively cooperate to form a tread layer inner surface molding wall when the inner mold is closed. Sidewall molding portions may also be provided to form limited sidewalls of the NPT tread layer—with or without a tread pattern. An inflatable bladder may be located within the inner mold portion to apply pressure to the tread layer inner surface molding wall and, resultantly, to the NPT tread layer, during molding.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: February 18, 2020
    Assignee: AMERICAN KENDA RUBBER INDUSTRIAL CO., LTD.
    Inventor: Clinton Covey
  • Patent number: 10562251
    Abstract: A mold 6 includes multiple segments 24 arranged in the circumferential direction so as to form a ring shape, and a pair of side plates 26, 28 positioned on an inner side in the radial direction, at end portions, in an axial direction, of the multiple segments 24. The side plates 26, 28 respectively have outer circumferential surfaces 26b, 28b which contact with the multiple segments 24 arranged in the ring shape. Each of the segments 24 includes a first contact surface 36 which contacts with the outer circumferential surface 26b of the upper side plate 26, and a second contact surface 38 which contacts with the outer circumferential surface 28b of the lower side plate 28. A radius R1 of the first contact surface 36 is greater than a radius R2 of the second contact surface 38.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: February 18, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Masanori Ishikawa
  • Patent number: 10556369
    Abstract: A molding apparatus defining a processing direction includes multiple molding modules spaced apart in a lateral direction perpendicular to the processing direction and a common reaction surface. Each molding module includes a frame and a mold roll that defines molding cavities. Each mold roll defines a respective pressure zone in cooperation with the reaction surface and each mold roll is movable with respect to the reaction surface by controlled operation of the frame. Molten resin is introduced into the pressure zones and forced into the molding cavities to form arrays of fastener elements extending from base layers of resin formed on the surfaces of the mold rolls. The fastener elements are withdrawn from the cavities while stripping the base layers from the peripheral surfaces.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: February 11, 2020
    Assignee: Velcro BVBA
    Inventors: Jerry G. Hodsdon, Christopher M. Gallant
  • Patent number: 10556393
    Abstract: A method of manufacturing a tire is provided that includes curing the tire (10) in a curing press (12) and applying microwave energy at a given frequency band into the tire. The interaction between the microwave energy and the tire is monitored to obtain a complex reflection coefficient. A root-mean-squared error is calculated using the measured complex reflection coefficient and a reference reflection coefficient. The reference reflection coefficient is from a fully cured tire made from the same material as the tire. Continuous monitoring of the interaction takes place to obtain the complex reflection coefficient along with continuous calculation of the root-mean-squared error at different times during the curing of the tire in the curing press. The calculated root-mean-squared errors are used to determine whether to stop the curing of the tire in the curing press.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: February 11, 2020
    Assignee: The Curators of the University of Missouri
    Inventors: David Judd, Frank Gramling, Reza Zoughi, Mohammad Tayeb Ghasr
  • Patent number: 10549463
    Abstract: A base for an injection molding machine has two side frames extending parallel with the axis of a drive actuator. Each of the side frames includes a lower flange supported by a bed, an upper flange disposed parallel with the lower flange, at least two webs connecting the upper flange and the lower flange, and a web reinforcing member fixed to the webs and penetrating through the webs. The side frames each have stiffeners connected between the lower and upper flanges and to one of the webs.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: February 4, 2020
    Assignee: NISSEI PLASTIC INDUSTRIAL CO., LTD.
    Inventors: Atsushi Murata, Daiki Tanemura, Satoshi Hoshino
  • Patent number: 10549457
    Abstract: A fixing hole of a mold for rubber article is easily inspected and the vent piece is securely fixed in the fixing hole. A vent piece having a vent hole is fixed in a fixing hole of a mold, so as to manufacture the mold having the vent hole. The vent piece has a first inspection part to be inserted into the fixing hole, a caulking part thicker than the first inspection part and is to be fixed in the fixing hole by caulking, and a second inspection part positioned between the first inspection part and the caulking part and is thicker than the first inspection part and thinner than the caulking part. When the first inspection part is inserted into the fixing hole but the second inspection part is not inserted into the fixing hole, the caulking part is fixed in the fixing hole by caulking.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: February 4, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Tomo Koyanagi
  • Patent number: 10538041
    Abstract: A method of manufacturing a tire curing bladder, the method includes the steps of (i) providing a cured tire curing bladder; and (ii) applying an air barrier composition to the cured tire curing bladder to form an air barrier layer. A method of restoring the air retention of a tire curing bladder, the method includes the steps of (i) providing a used tire curing bladder; and (ii) applying an air barrier composition to the used tire curing bladder to form an air barrier layer.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: January 21, 2020
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Amy M. Randall, Craig R. Balnis, David J. Zemla
  • Patent number: 10532497
    Abstract: A mould (10) for a tire, comprising two shells (30) that are each intended to mould a lateral sidewall of the tire, a ring of sectors (20) intended to mould a tread of the tire, each sector (20) of the ring of sectors comprising a radially inner face (21) having a moulding lining (22). The mould (10) has microstructures (50) that are designed to fill a clearance between two moulding linings (22) of adjacent sectors (20) and/or between a moulding lining (22) of one sector (20) and a shell (30), when the mould is closed.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: January 14, 2020
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Etienne Blanchet, Thomas Lescur
  • Patent number: 10532506
    Abstract: A clamp assembly for an injection molding machine includes (a) a clamp cylinder housing and (b) a clamp piston affixed to an end portion of a tie bar and slidable within the housing among a clamping position, a mold break position, and a meshing position disposed axially intermediate the clamping and the mold break positions. The clamp assembly further includes (c) a clamp chamber for urging the clamp piston towards the clamping position when pressurized; (d) a return device for urging the clamp piston towards the meshing position when pressure in the clamp chamber is relieved; and (e) a mold break chamber for urging the clamp piston towards the mold break position when pressurized. The mold break chamber is bounded axially by opposed surfaces of the tie bar and the return device.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: January 14, 2020
    Assignee: NIIGON MACHINES LTD.
    Inventors: Carsten Link, Robert D. Schad, Luke Osmokrovic
  • Patent number: 10525620
    Abstract: The present invention relates to a spreading device for a foaming furnace, including a first spreading component and a second spreading component symmetrically mounted on two sides in a hearth of a foaming furnace. Both the first spreading component and the second spreading component are provided with a spreading roll group composed of at least two spreading rolls, and a driving device for driving the spreading roll group. The spreading device further includes a fixing frame, the fixing frame including a first mounting seat and a second mounting seat. The spreading roll includes a first mounting portion and a second mounting portion. The first mounting portion is rotationally connected to the first mounting seat, and the second mounting portion is rotationally connected to the second mounting seat. The spreading device of the present invention has good stability during work, and significantly improves an unfolding effect.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: January 7, 2020
    Assignee: ZHEJIANG RUNYANG NEW MATERIALS TECHNOLOGY CO., LTD.
    Inventor: Qingfeng Yang
  • Patent number: 10525623
    Abstract: Provided is a mold opening/closing device that can prevent a ball screw shaft from reaching a risky speed while using a ball screw having a cantilever supporting structure. A mold clamping device according to the present invention is provided with: a ball screw having a ball screw shaft and a ball screw nut that meshes with the ball screw shaft; and a motor that drives the ball screw. One end of the ball screw shaft is supported by a fixation plate or a movable plate so as to be rotatable or non-rotatable, while being restricted in movement in an axial direction and thereby serving as a fixed end, and the other end thereof serves as a free end. Further, the mold clamping device is characterized in that a distance between the ball screw nut and the fixed end is shorter than a distance between the fixed plate and the movable plate.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: January 7, 2020
    Assignee: U-MHI PLATECH CO., LTD.
    Inventors: Shinichi Takahashi, Naoki Kato, Toshihiko Kariya
  • Patent number: 10507625
    Abstract: A tire vulcanization mold 10 of an embodiment includes an annular side mold 14 having a side molding surface 18 for molding a side wall portion T2. In a side mold body 15 of the side mold 14, an annular recess 20 is provided in the side molding surface 18 and a side ring 22 is fitted into the annular recess. The side ring 22 is mounted in the annular recess 20 such that a vent gap 30 for discharging air is formed between the side ring and the annular recess, on an opening portion side of the annular recess 20, and such that the side ring 22 is centered with respect to the side mold body 15 by a close contact fitting portion 28 in which the side ring and the annular recess are fitted without a gap therebetween, on a bottom portion side of the annular recess 20.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: December 17, 2019
    Assignee: TOYO TIRE CORPORATION
    Inventor: Masaaki Ohara
  • Patent number: 10500776
    Abstract: A brake control method for an injection molding machine includes the steps of obtaining mold clamping force information indicating the mold clamping force of a mold opening/closing mechanism and determining whether or not the mold clamping force of the mold opening/closing mechanism exceeds a predetermined value, based on the mold clamping force information. When the mold clamping force of the mold opening/closing mechanism does not exceed the predetermined value and when a servo amplifier cuts off the supply of power to a servomotor that drives the mold opening/closing mechanism, a brake mechanism for applying braking force to the mold opening/closing mechanism is actuated. On the other hand, when the mold clamping force of the mold opening/closing mechanism exceeds the predetermined value, the brake mechanism will not be actuated.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: December 10, 2019
    Assignee: FANUC CORPORATION
    Inventors: Tatsuhiro Uchiyama, Junpei Maruyama, Kazuyoshi Tanaka
  • Patent number: 10500767
    Abstract: The present disclosure provides for a molding element for a mold used for manufacturing a tread of a tire having a plurality of contacting element, a plurality of grooves and a connecting member connecting two side faces of adjacent contacting elements, the molding element having a molding surface and a rib for forming the groove between adjacent contacting elements and at least two rib side faces, the rib having a notching portion, a guiding member made of a material different from a material of the molding element being received in the notching portion and has two opposite side faces and a top face configured to form a part of a bottom of the groove, a distal end of the rib projecting member has a chamfered surface facing to an obliquely upward direction for guiding the connecting member toward the guiding slit.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: December 10, 2019
    Assignee: Compagnie Generale Des Etablissements Michelin
    Inventors: Romain Calvel, Khotchakorn Pengsaloong, Supradit Khaoyabut
  • Patent number: 10500768
    Abstract: A tire vulcanizer is disclosed including a sector arranged with respect to a side plate with a high degree of positioning accuracy. The tire vulcanizer includes: the sector that shapes a tread of a tire; a segment to which the sector is fixed and causes the sector to move in a tire radial direction; a bolt that fixes the sector to the segment; a ring-shaped jacket ring provided on an outer side in the tire radial direction of the segment; paired upper and lower side plates that shape sidewalls of the tire; and mold parting surfaces defined by the sector and the paired upper and lower side plates. Mold inner ends of the mold parting surfaces are arranged on the tread, and the mold parting surfaces extend outward in the tire radial direction from the mold inner ends.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: December 10, 2019
    Assignee: TOYO TIRE CORPORATION
    Inventor: Masaaki Ohara
  • Patent number: 10493709
    Abstract: A tire molding element for vulcanization molding a tire tread is disclosed herein. The tire includes at least one thin plate including a protrusion which protrudes from the main body in the thickness direction of the thin plate and guides the cut covering layer in the depth direction of the green tire in such a way as to cover at least a portion of the transverse side surface of the ground contact element, and the at least one thin plate comprises at least two cutting means separated in the thickness direction of the at least one thin plate, at an end portion on the opposite side to the molding surface.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: December 3, 2019
    Assignee: Compagnie Generale Des Etablissements Michelin
    Inventor: Shuichi Kaneko
  • Patent number: 10493711
    Abstract: A system for the continuous extrusion, molding, and curing of tread rubber is provided. A plurality of discrete mold sectors are arranged adjacent to each other along a longitudinal axis between an in-feed and an out-feed of a mold sector transport mechanism that extends through a heated press. As the mold sectors are continuously advanced along a process direction in steps, rubber material is extruded and placed onto at least one of the mold sectors near the in-feed end such that an elongated strip of rubber material extends over multiple mold sectors along the longitudinal axis. As the strip of rubber material exits the press, the mold sectors are sequentially removed from the rubber material and returned to the in-feed. An extruder outlet positioned near the in-feed can be moved towards or away from the mold sectors to supply rubber material and prevent backflow.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: December 3, 2019
    Assignees: Companie Generale Des Etablissements Michelin, Michelin Recherce Et Techinque S.A.
    Inventors: James Fortner, Chinglin Pan, John Hommerson, David Lung, Michael Petrovich, Chris Beccavin
  • Patent number: 10493681
    Abstract: In an embodiment, the present invention provides an extrusion device for producing a profile from plasticizable material, including at least one extruder head, in which the plasticized material can be supplied to a gap which is delimited by at least one roller and at least one bar that bears against a bearing surface in a predefined position via a fixing element in an operating position of the extrusion device. The fixing element includes a flat pressure-transmitting element which, in the operating position, can be placed against a pressure surface of the bar that is opposite the bearing surface, the pressure-transmitting element including a double-armed lever, which is pivotable about at least one axis, in order to compensate for a possible deviation from the predefined parallel orientation of the pressure-transmitting element with respect to the pressure surface of the bar.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: December 3, 2019
    Assignee: TROESTER GMBH & CO. KG
    Inventor: Karsten Herbing
  • Patent number: 10486346
    Abstract: A system for the continuous extrusion, molding, and curing of tread for tires. An elongated strip of rubber material can be molded and cured shortly after extrusion such that the material retains much of the heat energy of extrusion and does not have to be stored. A plurality of discrete mold assemblies are conveyed adjacent to each other. As the mold assemblies are advanced sequentially, the uncured and unmolded strip of rubber material are extruded and positioned onto the mold assemblies. While the rubber strip advances, individual portions are sequentially molded and cured by passing through a mold press and then a curing press. A plug assembly is used to prevent the backflow of rubber material during the molding and curing.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: November 26, 2019
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventors: David Lung, John Hommerson, Michael Petrovich
  • Patent number: 10486339
    Abstract: A rubber article mold capable of discharging air from a molding-surface side to a back-surface side during curing while suppressing the entry of rubber into an air vent hole and a method for producing such a rubber article mold are provided. The rubber article mold includes air discharge means for discharging air from a molding-surface side for molding a rubber article to a back-surface side. The air discharge means is formed as an annular hollow penetrating from a molding surface to a back surface of the rubber article mold. The annular hollow has an inflow area where the air on the molding-surface side flows in, a discharge area for discharging the air having flowed in from the inflow area to the back-surface side, and an intermediate area communicating with the inflow area and the discharge area and smaller or larger in diameter than the inflow area and the discharge area.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: November 26, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Ryota Kawaki