Introducing Material Under Pressure Into Mold (e.g., Injection Molding, Etc.) Patents (Class 264/645)
  • Patent number: 10641276
    Abstract: The purpose of the present invention is to improve the mechanical strength of a boss in correspondence with the direction in which the principal stress is generated in an impeller formed of fiber-reinforced resin. A hub 11 is provided with a first region ? arranged on the back surface 11b side, and a second region ? arranged on the front surface 11a side. In the first region ? the frequency with which the reinforcement fibers F dispersed at the periphery of a boss hole 12 are oriented inclined with respect to the radial direction of the hub 11 is high, and in the second region the frequency with which the reinforcement fibers dispersed at the periphery of the boss hole are oriented along the rotational axis line is high.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: May 5, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Ryoji Okabe, Yasunori Watanabe, Kosuke Ikeda
  • Patent number: 8951463
    Abstract: A method for the production of tungsten carbide based cemented carbide or cermet tools or components using the powder injection molding method includes mixing of hard constituent powder and a metallic binder powder with an organic binder system, consisting of 30-60 wt-% olefinic polymers and 40-70 wt-% nonpolar waxes, acting as a carrier for the powder. A metallic binder powder that is granulated with a nonpolar wax is used.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: February 10, 2015
    Assignee: Seco Tools AB
    Inventors: Mattias Puide, Per Jonsson
  • Patent number: 8890020
    Abstract: A heater tube is provided for use in a method of producing a diamond or cubic boron nitride (CBN) tipped cutting tool by sintering a mass of crystalline particles to a metal carbide. The heater tube has a cylindrical shape and is comprised of a plurality of windings of an expanded graphite foil which are compressed together. In the method, a heater tube assembly is formed which comprises the metal carbide substrate positioned within the heater tube and a mass of diamond or CBN particles positioned within the heater tube adjacent the substrate. The method includes simultaneously applying sufficient levels of pressure to the heater tube assembly and sufficient levels of electrical current to the heater tube assembly for a sufficient amount of time to cause sintering of the crystalline particles and bonding to the substrate to form a diamond or CBN tipped cutting tool.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: November 18, 2014
    Inventor: Leland M. Reineke
  • Patent number: 8891171
    Abstract: The high sag thick lens is for use in an illumination apparatus, such as a solid state light source. The lens is made of a first lens part having an optical active surface and a series of elongated baffles, the baffles having a top portion, the top portions defining a line that follows the curvature of the optical active surface to create a second lens part of uniform thickness. A second lens part is fused to the first lens part to create the lens. The second lens part has an optical active surface and a series of elongated baffles, the baffles having a thickness comparable to the thickness of the corresponding optical active surfaces. The first and the second baffles are intertwined along the entire length of their lateral surfaces.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: November 18, 2014
    Assignee: DBM Reflex Enterprises Inc.
    Inventors: Eric Choquet, George Iatan
  • Patent number: 8871128
    Abstract: {Problem} The exact method with small time-lag of detecting injection pressure for controlling pressure in an electric-motor driven injection molding machine without using a pressure detector has been asked for because the pressure detector is very expensive, necessitates troublesome works for mounting, an electric protection against noise and the works for zero-point and span adjustings and causes a complicate mechanical structure. {Solution} The present invention uses a high-gain observer which contains the discrete-time arithmetic expressions derived from a mathematical model of an injection and pressure application mechanism in an electric-motor driven injection molding machine consisting of a state equation and an output equation and outputs an estimate of injection pressure, which is one of the state variables of the above state equation, by using an injection velocity signal and a servomotor current demand signal or actual motor current signal as inputs.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: October 28, 2014
    Inventor: Noriyuki Akasaka
  • Patent number: 8871122
    Abstract: A method facilitates fabricating a cellular cushion. The method comprises injecting material into a mold in an injection molding process to form a cushion first layer that includes a plurality of hollow cells that extend outward from the base and are each coupled together in flow communication, coupling a second layer to the first layer, and coupling an injection stem in flow communication to the plurality of hollow cells to enable an operating pressure within the cells to be changed.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: October 28, 2014
    Assignee: Star Cushion Products, Inc.
    Inventor: Kevin Gerard Fraser
  • Patent number: 8858848
    Abstract: A conductive plastic article (31) is disclosed suited for a housing that offers improved shielding against electromagnetic interference or that offers improved electrostatic discharge properties. The plastic article is made by means of low pressure injection molding. The article (31) comprises at least 0.25 volume percent of electrically conductive additives (38). The article (31) comprises a cellular structure. The cellular structure is created by the use of a blowing or foaming agent. At least 0.25 weight percent of blowing or foaming agent is used in the production of the conductive plastic article (31).
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: October 14, 2014
    Assignee: NV Bekaert SA
    Inventors: Rik Dewitte, Wim Verbrugge
  • Publication number: 20140200131
    Abstract: A silicon nitride material is disclosed which has properties beneficial for efficient operation of a corona discharge igniter system in an internal combustion gas engine.
    Type: Application
    Filed: March 17, 2014
    Publication date: July 17, 2014
    Applicant: CERADYNE, INC.
    Inventor: Biljana Mikijelj
  • Publication number: 20140197583
    Abstract: A ceramic composition for an injection-molding process for producing a combustion chamber pressure sensor, in particular for producing an insulation punch of a combustion chamber pressure sensor, includes a ceramic component in a proportion of greater than or equal to 50% by weight and a glass component in a proportion of less than or equal to 50% by weight. The ceramic component includes aluminum oxide. The glass component includes silicon dioxide or a silicon dioxide precursor. The ceramic composition further includes an alkaline earth metal oxide or an alkaline earth metal oxide precursor. The ceramic composition allows production of an insulation punch having a particularly good insulation capability. A ceramic injection-molding process includes the ceramic composition.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 17, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Martin Schubert, Andre Moc, Thomas Loibl, Imke Heeren
  • Publication number: 20140184039
    Abstract: A device housing providing a sensation of touch similar to that of jade is made of a material including quartz, clay mineral and a polymer composition containing calcium-magnesium. The clay mineral includes elemental Zn, aluminum oxide, calcium oxide, magnesium oxide, barium oxide, silicon oxide, and titanium oxide. The polymer composition containing calcium-magnesium comprises iron (III) oxide, iron (II, III) oxide, calcium carbonate, and calcium silicate. A method for manufacturing the device housing is also provided.
    Type: Application
    Filed: June 28, 2013
    Publication date: July 3, 2014
    Inventor: REN-BO WANG
  • Publication number: 20140179509
    Abstract: The invention provides a porous glass ceramic composition manufactured using conventional raw materials and one or more waste materials, wherein the waste materials are capable of producing glass forming oxides, glass modifying oxides and pore forming oxides. The waste materials are selected from a group that includes cullet, pozzolanic waste and fly ash. The invention also provides a method for manufacturing the porous glass ceramic composition.
    Type: Application
    Filed: December 22, 2012
    Publication date: June 26, 2014
    Applicants: Università di Padova, King Abdul Aziz City for Science and Technology
    Inventors: King Abdul Aziz City for Science and Technology, Università di Padova
  • Publication number: 20140084522
    Abstract: A surgical needle driver including a pair of jaws. The pair of jaws includes an upper jaw and a lower jaw, where the lower jaw has an outer surface facing an outer surface of the upper jaw. The outer surface of each jaw each has a plurality of polygonal pyramidal teeth configured to engage a surgical needle. Each of the plurality of polygonal pyramidal teeth has more than four exposed faces. A method of manufacturing the needle driver or components of the needle driver includes a powder injection molding process.
    Type: Application
    Filed: July 31, 2013
    Publication date: March 27, 2014
    Applicant: Greene Manufacturing Technologies, LLC, dba Britt Manufacturing
    Inventor: Clinton D. Torgerson
  • Publication number: 20140077426
    Abstract: A method of manufacturing a powder injection-molded body, the method including: mixing at least titanium hydrogen compound (TiHx) powder and a binder to prepare a molding mixture; powder-injecting the molding mixture to form a molded product; degreasing the molded product; and sintering the degreased molded product, wherein in the titanium hydrogen compound, the ratio of hydrogen(H) to titanium(Ti) is greater than 0.45 and less than 1.98.
    Type: Application
    Filed: November 25, 2013
    Publication date: March 20, 2014
    Applicant: MTIG CO., LTD.
    Inventor: Young Suk Park
  • Patent number: 8663540
    Abstract: A heater tube is provided for use in a method of producing a diamond or cubic boron nitride (CBN) tipped cutting tool by sintering a mass of crystalline particles to a metal carbide. The heater tube has a cylindrical shape and is comprised of a plurality of windings of an expanded graphite foil which are compressed together. In the method, a heater tube assembly is formed which comprises the metal carbide substrate positioned within the heater tube and a mass of diamond or CBN particles positioned within the heater tube adjacent the substrate. The method includes simultaneously applying sufficient levels of pressure to the heater tube assembly and sufficient levels of electrical current to the heater tube assembly for a sufficient amount of time to cause sintering of the crystalline particles and bonding to the substrate to form a diamond or CBN tipped cutting tool.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: March 4, 2014
    Inventor: Leland M. Reineke
  • Patent number: 8636842
    Abstract: Disclosed is a method of manufacturing an artificial stone, and the method includes forming an artificial-stone paste which comprises 20-20 parts by weight of silica stone, metakaolim or silica fume, 200-300 parts by weight of quartz chips, 30-36 parts by weight if water, 1.5-3 part by weight of water-reducing agent and 0.2-3 parts by weight of pigment with response to 100 parts by weight of white cement; injecting the artificial-stone paste in a mold; primarily vacuum-molding the artificial-stone paste injected in the mold; secondarily vibration-molding the primarily molded artificial-stone paste; primarily curing the secondarily molded artificial-stone paste; secondarily curing the primarily cured artificial-stone paste, which induces a hydrothermal reaction and thus causes a pozzolanic reaction; releasing the secondarily cured artificial-stone paste from the mold; and surface-machining the released artificial-stone paste.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: January 28, 2014
    Assignee: LG Hausys, Ltd.
    Inventor: Chang Hwan Park
  • Publication number: 20140021660
    Abstract: The invention relates to a feedstock for power injection molding, PIM, comprising: at least one inorganic powder, advantageously metallic or ceramic or made of cermet; a polymeric binder; organic fibres or yarns, advantageously polymeric, the fibres or yarns being made of a material different from that of the polymeric binder. It then relates to the method for producing such a feedstock, as well as the method for producing parts by means of the powder injection moulding (PIM) technique using said feedstock.
    Type: Application
    Filed: September 23, 2013
    Publication date: January 23, 2014
    Applicant: Commissariat A L'Energie Atomique Et Aux Energies Alternatives
    Inventors: Luc Federzoni, Pascal Revirand
  • Patent number: 8591801
    Abstract: [Problems] To provide a process for producing a conductor built-in ceramic which can eliminate the need to conduct metallic lead wire processing, can suppress the entry of a foreign matter, dust and the like from gaps between bases formed in dewaxing and firing and can reduce a dielectric breakdown failure, and a conductor built-in ceramic produced by the production process. [Means for Solving Problems] A process for producing a conductor built-in ceramic, comprising the step of producing a molded product (11) for an energization part using a conduction mixture, containing an electroconductive ceramic powder and a binder, the step of holding the molded product (11) for an energization part within a mold (13) and filling a mixture (15), for a base, containing an insulating ceramic powder and a binder into the mold (13) to produce an element compact (17) comprising a molded product (11), for an energization part, covered with the mixture (15) for a base, and the step of firing the element compact (17).
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: November 26, 2013
    Assignee: Kyocera Corporation
    Inventor: Yoshiya Tsutsui
  • Publication number: 20130231427
    Abstract: A method of forming an object by powder injection molding, the object being formed from an injection molded integral body comprising a green part contiguous with an expendable part, the method comprising debinding the integral body at step 18 to obtain a debound green part contiguous with a debound expendable part; sintering the debound green part at step 20 at a sintering temperature, the debound expendable part configured to at least partially define the debound green part and has a melting point higher than the sintering temperature; and separating the debound expendable part from the sintered debound green part at step 22 to form the object.
    Type: Application
    Filed: November 4, 2011
    Publication date: September 5, 2013
    Inventors: Su Xia Zhang, Tao Li, Zi Yan Ong, Yonghui Bai
  • Publication number: 20130200556
    Abstract: The present invention relates to a method for the production of cemented carbide based hard metal parts comprising hard constituents in a binder phase by using powder injection moulding or extrusion of a mixture of hard constituents and binder phase in organic binders having a melting point: mixing. The method includes the steps of mixing the powders of hard constituents and binder phase to form a mixture and heating the mixture of hard constituents and binder phase to a temperature. When the temperature of the mixture of hard constituents and binder phase is above the melting point of the organic binders, the organic binders are added in melted form, making sure that the temperature does not fall below the melting point of the organic binders. The parts are formed by powder injection moulding or extrusion. The organic binders are removed from the obtained parts by a debinding step and the parts are sintered.
    Type: Application
    Filed: May 25, 2011
    Publication date: August 8, 2013
    Applicant: SECO TOOLS AB
    Inventor: Per Jonsson
  • Publication number: 20130157836
    Abstract: A silicon nitride material is disclosed which has properties necessary for efficient operation of a corona discharge igniter system in an internal combustion gas engine allowing an increase in fuel efficiency of over 10%. The material is disclosed in a range of compositions, all of which exhibit high dielectric strengths, high mechanical strength, thermal shock resistance and fracture toughness, low dielectric constant and loss tangent and electrical resistivity, all of which significantly increase the efficiency of the igniter system over current state of the art alumina insulators. Moreover, the materials retain their dielectric strength and structural integrity at elevated temperatures, up to 800° C.-1000° C. One embodiment comprises a sintered silicon nitride process comprising powder batching, binder removal and sintering. In the preferred embodiment the method of manufacture for silicon nitride is an SRBSN process comprising powder batching, powder pressing, binder removal, nitriding and sintering.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 20, 2013
    Inventor: Biljana Mikijelj
  • Publication number: 20130140489
    Abstract: Embodiments of the invention relate to a composite hydrogen storage material comprising active material particles and a binder, wherein the binder immobilizes the active material particles sufficient to maintain relative spatial relationships between the active material particles.
    Type: Application
    Filed: February 4, 2013
    Publication date: June 6, 2013
    Applicant: Société BIC
    Inventor: Société BIC
  • Publication number: 20130062820
    Abstract: The invention relates to binders for pulverulent metals, metal alloys or ceramics based on polyacetals, polyethers and polyesters, to thermoplastic compositions comprising these binders for the production of metallic or ceramic moldings, to the use thereof and to processes for production of moldings therefrom.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 14, 2013
    Applicant: BASF SE
    Inventors: Johan ter Maat, Martin Blömacher, Hans Wohlfromm, Mario Nohe, Robert Loos
  • Patent number: 8349758
    Abstract: A catalyst with large surface area structure, in particular for steam-reforming catalysts, which is characterized in that the large surface area structure is formed of a large number of round or parallel penetrating holes of polygonal cross-section, wherein the catalyst carrier is prepared in the injection molding process, coated with a washcoat and then impregnated with the active component. The catalyst carrier includes at least one sinterable material and has a lateral pressure resistance of at least 700 N. Also, a process for the preparation of such catalysts and the use thereof in a reactor.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: January 8, 2013
    Assignee: Sud-Chemie AG
    Inventors: Wolfgang Gabriel, Ingo Hanke
  • Publication number: 20120306128
    Abstract: Methods of forming feedthroughs for hermetically sealed housings using powder injection molding, including positioning a plurality of separate electrically conductive elements in a mold, injecting non-electrically conductive powder injection molding (PIM) feedstock into the mold to form a plurality of insulative bodies around the conductive elements, sintering the insulative bodies to form the plurality of feedthroughs physically connected to one another via the conductive elements; and severing the conductive elements between neighboring insulative bodies.
    Type: Application
    Filed: November 26, 2010
    Publication date: December 6, 2012
    Applicant: National ICT Australia Limited
    Inventors: John L. Parker, David Robinson, David Thomas, Mark Fretz
  • Publication number: 20120255719
    Abstract: A ceramic heat sink module for lowering a temperature of a heating element is disclosed. The ceramic heat sink module includes a ceramic heat sink module body, wherein a composition of the ceramic heat sink module body includes at least 70% by weight aluminium oxide.
    Type: Application
    Filed: August 30, 2011
    Publication date: October 11, 2012
    Applicant: YUEN JINN ELECTRICAL CERAMIC CO., LTD.
    Inventor: Chin-Lung HSUEH
  • Patent number: 8282878
    Abstract: Embodiments of the present invention disclosed herein include a sintering aid composition that has a material useful for sintering, an amine, and optionally a carboxylic acid.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: October 9, 2012
    Assignee: Huntsman Petrochemical LLC
    Inventors: Alan P. Croft, David C. Lewis
  • Publication number: 20120235330
    Abstract: A process for producing a metallic or ceramic shaped body from a thermoplastic material comprising A) 40 to 65% inorganic sinterable powder A B) 35 to 60% binder B1) 50 to 95% polyoxymethylene homo- or copolymers; B2) 5 to 50% of a polymer dissolved or dispersed in B1) with a particle size of less than 1 ?m, and C) 0 to 5% by volume of a dispersing aid, by injection molding or extrusion to give a green body, removing the binder and sintering, which comprises removing the binder by a) treating the molding with a solvent which extracts the binder component B2) from the molding and in which the binder component B1) is insoluble, b) removing the solvent from the molding by drying, and c) treating the molding in an acid-containing atmosphere is described.
    Type: Application
    Filed: March 14, 2012
    Publication date: September 20, 2012
    Applicant: BASF SE
    Inventors: Johan ter Maat, Martin Blömacher, Hans Wohlfromm
  • Publication number: 20120227624
    Abstract: Provided are novel devices and methods for making a variable density preform, the methods comprising obtaining a slurry comprising a reinforcement particle component and a liquid component; obtaining a die cavity having at least one inlet opening and at least one exit opening defining at least one die cavity flow path therebetween directed toward the exit opening, the at least one exit opening suitably sized or configured to provide for exit of the at least one liquid component while impeding or blocking exit of the at least one reinforcement particle component; and introducing the slurry under pressure, and for a sufficient time period, through the inlet orifice into the die cavity flow path to provide for a decreasing pressure gradient along the flow path direction, to provide for a variable density of the at least one particle component, the particle density increasing in the at least one flow path direction.
    Type: Application
    Filed: December 12, 2011
    Publication date: September 13, 2012
    Applicant: FTF, LLC
    Inventors: Josh E. Loukus, Robert G. Coleman, Charles Benjamin Rau, III, Dallas W. Jolley, JR.
  • Publication number: 20120193841
    Abstract: A system and a method of fabricating a complex three dimensional part are described. The system comprises a rapid prototyping machine configured to provide a disposable mold having a negative imprint of a complex three dimensional structure, a mixer, an injection molding machine, and a furnace system. A slurry comprising a powder and a binder is introduced into the disposable mold, the binder is cured, the disposable mold is removed, and the binder is removed, leaving an intact cured structure. The cured structure is sintered to fabricate the complex three dimensional part.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 2, 2012
    Inventors: Hsin-Pang Wang, Erin Marie Perry
  • Patent number: 8231982
    Abstract: A composite of a metal and a resin, in which a shaped metal and a shaped thermoplastic resin are integrally joined by injection molding, and in which the perpendicular precision of the thermoplastic shaped body with respect to the shaped metal is improved, as well as a method for manufacturing the composite. A composite 40 of a metal and a resin is composed of a shaped metal 20 and a shaped thermoplastic resin that is integrally joined to this shaped metal 20 by injection molding. The shaped thermoplastic resin comprises a seat 42 and a boss 41 that protrudes from the seat 42. A runner 43 is provided which communicates with the seat 42 via two sprues and through which a molten thermoplastic resin that has been injected through an injection gate 45 flows into the boss 41 and the thermoplastic resin injected through the injection gate 45 flows through the sprues 47 to opposite locations of the boss 41 substantially uniformly, thereby filling the locations.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: July 31, 2012
    Assignee: Taisei Plas Co., Ltd.
    Inventors: Masanori Naritomi, Naoki Andoh
  • Publication number: 20120153549
    Abstract: The present invention relates to a process for producing shaped metal bodies having a structured surface which can be used as joining elements in the “friction spot joining” process described in the EP application 09015014.5. The shaped metal bodies are produced by means of MIM technology, and are deformed further in the green state or in the brown state after injection moulding to give the desired components.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 21, 2012
    Applicant: Helmholtz-Zentrum Geesthacht Zentrum Fur Material-und Kustenforschung GmbH
    Inventors: Orley Milagres Ferri, Thomas Ebel, Sergio De Traglia Amancio Filho, Jorge Fernandez Dos Santos
  • Patent number: 8168113
    Abstract: A process for the preparation of a ceramic molded part from a suspension/dispersion with a solids content and a fluid content by depositing solids content at the periphery of a porous self-supporting support that is at least partially immersed in the suspension/dispersion and has the same shape as the molded part to be prepared, but with a reduced size, wherein: the solids content contains oxide-ceramic particles; the porous self-supporting support is detachably connected with a discharge in a zone that is not immersed in the suspension/dispersion; the suspension/dispersion is moved towards the porous self-supporting support by means of a positive pressure difference between a pressure prevailing in the suspension/dispersion and a pressure prevailing in the discharge; wherein the fluid content of the suspension/dispersion enters in the porous self-supporting support with depositing solids content at the periphery of the porous self-supporting support.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: May 1, 2012
    Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Marc Stephan, Norbert Thiel, Enno Bojemüller
  • Patent number: 8137491
    Abstract: A reinforcement insert includes superposed laps of fiber which are coupled to each other by a coupling fiber which passes through the laps in order to form fiber sections wherein at least certain sections thereof are rectilinear. The fiber sections and laps are immersed in a cured resin. The total density of the fibers that make up the insert ranges from 50% to 60% of the volume of the insert and the fiber sections take up 3%-10% of the volume of the insert. A method for creating a sandwich structure includes at least one such insert.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: March 20, 2012
    Assignee: Astrium SAS
    Inventors: Georges Cahuzac, Jack Gauthier, Eric Chocheyras
  • Publication number: 20120057986
    Abstract: An impeller comprising a wheel portion extending in an axial direction and a plurality of blades arranged around the wheel portion is produced by assembling a mold divisible into a plurality of parts having a cavity adapted for forming an outer profile of the impeller, injecting a kneaded matter including powder of a metal or a ceramic and binder to mold a green body, degreasing and sintering the green body to obtain a sintered body, embedding the sintered body into a die having a cavity adapted for modifying the outer profile of the impeller, and pressurizing the die to modify the outer profile of the impeller.
    Type: Application
    Filed: May 20, 2010
    Publication date: March 8, 2012
    Applicant: IHI Corporation
    Inventors: Tomohiro Inoue, Yukio Takahashi, Yoshimitsu Matsuyama
  • Patent number: 8114238
    Abstract: A method for producing a tight joint between a multi-layer synthetic resin material and a filter medium by selectively melting a layer of the synthetic resin material which has a different thermal absorption capacity in comparison with the other layers by heating the synthetic resin material with infrared radiation, and then fusing the melted synthetic resin layer to the filter medium. A filter element produced by the method of the invention is also disclosed.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: February 14, 2012
    Assignee: Mann & Hummel GmbH
    Inventors: Josef Rohrmeier, Matthaeus Huber, Norbert Strassenberger, Dieter Amesoeder
  • Patent number: 8057724
    Abstract: A disposable microsensor is designed, fabricated and tested for standard BOD (Biochemical Oxygen Demand) measurements. A transparent Cyclic Olefin Copolymer (COC) substrate is used for sensor fabrication. Standard lithographic procedures in addition to techniques like screen printing and electroplating are used to fabricate the sensor. A microbial strain of Trichosporon Cutaneum is immobilized over one pair of sensor electrodes while the other is used as a reference. Depending on the respiratory activities of the microbial strain in different samples, the BOD values of the samples can be measured in terms of difference between the output signals. The sensor layer is attached to an injection-molded passive microfluidic channel on the top. Advantages of the BOD microsensor include, but are not limited to, fast BOD measurement, disposability because of its low cost, chemically inert polymer substrate, flow-through sample injection scheme and integration of on-chip optics.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: November 15, 2011
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Hyoung Jin Cho, Shekhar Halakatti, Anjum Mehta
  • Publication number: 20110250560
    Abstract: Provided are a dental and medical ultrasonic tip that may enhance a durability and a reliability and may simplify a manufacturing process, and a method of manufacturing the same. The method of manufacturing the dental and medical ultrasonic tip may include: providing a molding mixture including powder; manufacturing an intermediate molded object by injecting the molding mixture so as to integrally form a tip body and a plurality of tip protrusions protruded from the tip body; and sintering the intermediate molded object. The tip body and the plurality of tip protrusions may be formed using the same material, and the plurality of tip protrusions may be closely arranged on a substantially polished portion of the tip body.
    Type: Application
    Filed: April 12, 2010
    Publication date: October 13, 2011
    Inventors: Young Sam Kwon, In Hwan Lee, Seongho Baek
  • Publication number: 20110224718
    Abstract: A surgical needle driver including a pair of jaws. The pair of jaws includes an upper jaw and a lower jaw, where the lower jaw has an outer surface facing an outer surface of the upper jaw. The outer surface of each jaw each has a plurality of polygonal pyramidal teeth configured to engage a surgical needle. Each of the plurality of polygonal pyramidal teeth has more than four exposed faces. A method of manufacturing the needle driver or components of the needle driver includes a powder injection molding process.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 15, 2011
    Inventor: Clinton D. Torgerson
  • Patent number: 8001691
    Abstract: A method for manufacturing a hydrodynamic bearing (30) comprises steps of: step (201): providing a substrate (10) with a plurality of protrusions (14) formed on a periphery thereof; step (202): placing the substrate in a middle of a hollow mold, then injecting a feedstock of powder and molten binder into the mold to surround the substrate under pressure, thus forming a desired bearing preform (20); step (203): separating the substrate from the bearing preform by means of catalytic debinding; step (204): separating the binder from the bearing preform; step (205): sintering the bearing preform; step (206): precision machining the bearing preform to form the desired hydrodynamic bearing.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: August 23, 2011
    Assignee: Foxconn Technology Co., Ltd.
    Inventor: Chuen-Shu Hou
  • Patent number: 7998380
    Abstract: A method of fabricating a highly porous structure is provided. The method includes the step of compounding a biodegradable polymer, a water-soluble polymer and a porogen to form a composite blend. A foaming agent is dissolved into the composite blend and the composite blend is injected into a mold so as to form the structure. Thereafter, the structure is removed from the mold and leached in a fluid.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: August 16, 2011
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Lih-Sheng Turng, Adam J. Kramschuster
  • Publication number: 20110177322
    Abstract: Method for making a ceramic article and an article made by such a method; the method including mixing ceramic material and nanotubes, and processing the mixture so that nanotubes become transformed material. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Application
    Filed: January 16, 2010
    Publication date: July 21, 2011
    Inventors: Douglas Charles Ogrin, Kyle Ryan Kissell, Joshua Charles Falkner, Kurt Lee Lundberg, John Richard Tidrow
  • Publication number: 20110123384
    Abstract: Provided is a method of manufacturing a powder injection-molded body, the method including: mixing at least titanium hydrogen compound (TiHx) powder and a binder to prepare a molding mixture; powder-injecting the molding mixture to form a molded product; degreasing the molded product; and sintering the degreased molded product, wherein in the titanium hydrogen compound, the ratio of hydrogen(H) to titanium(Ti) is greater than 0.45 and less than 1.98. Accordingly, during the degreasing process or the sintering process, the titanium hydrogen compound is decomposed into titanium and hydrogen and the hydrogen reacts with oxygen, carbon, and nitrogen, thereby significantly decreasing production rates of impurities in the sintered product. In addition, during the degreasing process, hydrogen is less released from the titanium hydrogen compound, and then, explosion possibility due to the generated hydrogen can be significantly decreased.
    Type: Application
    Filed: November 25, 2008
    Publication date: May 26, 2011
    Inventor: Young Suk Park
  • Patent number: 7947146
    Abstract: A carpule and its method of manufacture, the carpule tubular body composed of a polypropylene or similar polymer, the tubular body being sealed at one end by a seal of a thermoplastic vulcanizate (TPV) or similar polymer, the seal having been injection molded in contact with the tubular body prior to full curing of the material composing the tubular body, such that a chemical fusion bond is created between the seal and the tubular body.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: May 24, 2011
    Inventors: Andrew Skigen, Art Molino, Craig Kroeger
  • Patent number: 7926182
    Abstract: A method for manufacturing a hydrodynamic bearing with hydrodynamic pressure generating grooves comprises steps of: step 201: providing a substrate with a first annular protrusion and a plurality of projections formed on a periphery thereof, the projections being in a side of the first annular protrusion; step 202: placing the substrate in a middle of a hollow mold, then injecting a feedstock of powder and molten binder under pressure into the mold to surround the substrate, thus forming a desired bearing preform; step 203: separating the substrate from the bearing preform by means of catalytic debinding; step 204: separating the molten binder from the bearing preform; step 205: sintering the bearing preform to thereby form the hydrodynamic bearing.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: April 19, 2011
    Assignee: Foxconn Technology Co., Ltd.
    Inventor: Chuen-Shu Hou
  • Patent number: 7850892
    Abstract: A test blade and a method for fabricating the test blade are presented for use in calibrating a tomography system configured to inspect turbomachine blades for defects. The test blade may include a three-dimensional fiber blank and a polymerized resin. The blank may be created by weaving synthetic material fibers. The resin may be configured to be injected into a mold as a liquid where the resin may polymerize around the fiber blank. The test blade may be configured to be modified to include particular defects such as cut fibers and/or cavity defects which are perceived by the tomography system. The dimensions of the cavity defects may be substantially created by pulling two or more fibers apart at a specific distance with a spreading tool.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: December 14, 2010
    Assignee: SNECMA
    Inventors: Jean-Louis Romero, Myriam Wozniak
  • Patent number: 7833470
    Abstract: The molding defect known as “splay” is reduced in poly(arylene ether) injection molding compositions including specific amounts of poly(arylene ether), rubber-modified polystyrene, triaryl phosphate, and aryl phosphite. The molding compositions are particularly useful for injection molding articles with large, thin sections, such as battery cases for the back-up batteries used in wireless towers.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: November 16, 2010
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventor: Sean W. Culligan
  • Publication number: 20100263663
    Abstract: Use of ceramic powder injection molding for the manufacture of a ceramic component of a medicinal pressurized metered dose dispenser, in particular a metered dose inhaler.
    Type: Application
    Filed: July 8, 2008
    Publication date: October 21, 2010
    Inventors: Stuart A. McGlasson, Peter David Hodson, Lorraine E. Aleandri-Hachgenei
  • Publication number: 20100117273
    Abstract: The embodiments of the invention are directed to a synthetic ceramic comprising pyroxene-containing crystalline phase, a clast, and a glass phase, wherein at least a portion of the synthetic ceramic is plastically deformable in a certain temperature range. Other embodiments of the invention relate to a method of making a synthetic ceramic, comprising heating a green ceramic material to 900-1400° C., to a temperature sufficient to initiate partial melting of at least a portion of the green ceramic material, transferring the heated green ceramic material to a press, pressing the heated green ceramic material in a die at 1,000 to 10,000 psi, and transferring the heated, pressed green ceramic material to a furnace for cooling to form the synthetic ceramic.
    Type: Application
    Filed: November 6, 2009
    Publication date: May 13, 2010
    Applicant: CERAMEXT, LLC
    Inventors: Jerry WARMERDAM, Joseph R. Cochran, Ross Guenther, James L. Wood, Robert D. Villwock
  • Publication number: 20100044929
    Abstract: Exemplary embodiments of the present invention provide methods for forming spark plug insulators, particularly asymmetrical spark plug insulators, without required machining after an initial heating or firing of the spark plug insulator. In one exemplary embodiment, a method of forming an asymmetrical spark plug insulator is. The method includes: forming a first mixture comprising a binder formed of water and agar; forming a second mixture comprising a ceramic material; combining the first mixture and the second mixture to form a molding compound; injection molding the molding compound to form an asymmetrical spark plug insulator having a initial net shape and size; and sintering the asymmetrical spark plug insulator to cause hardening of the asymmetrical spark plug, the sintered asymmetrical spark plug having a final net shape and size.
    Type: Application
    Filed: August 25, 2009
    Publication date: February 25, 2010
    Inventor: Jeffrey Boehler
  • Publication number: 20100047557
    Abstract: The invention relates to the field of ceramics and relates to composite molded articles, such are used, for example, for chip-removal tools. The object of the invention is to disclose composite molded articles that are free in the design of their surface and interface and can be produced in series production. The object is attained through ceramic and/or powder metallurgical composite molded articles comprising a green tape and an injection molded article. The object is further attained through a method in which a green tape is inserted into or placed onto a mold, and subsequently at least one ceramic and/or powder metallurgical injection molding mass is placed on and/or applied to and/or inserted into the mold by means of injection molding, and subsequently the one-part or multi-part mold is removed and/or the one-part or multi-part composite molded part parts are removed from the mold, wherein these process steps can be repeated once or several times.
    Type: Application
    Filed: January 7, 2008
    Publication date: February 25, 2010
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Andreas Baumann, Reinhard Lenk, Tassilo Moritz, Hans-Juergen Richter, Hartmut Walcher, Marko Maetzig