Patents Examined by Stephen J. Lechert, Jr.
  • Patent number: 7270779
    Abstract: The present invention relates to a method and an apparatus for extruding continuously molded bodies, wherein an extrusion solution, in particular an extrusion solution containing water, cellulose and a tertiary amine oxide, is extruded through an extrusion orifice into a continuously molded body and is then deflected by means of a deflector (7). To improve the quality of the continuously molded bodies produced by the method or apparatus of the invention, the extrusion orifices are arranged in a row such that the individual, continuously molded bodies exit in the form of a curtain (3) form the extrusion head. This curtain is then deflected by the deflector.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: September 18, 2007
    Assignee: Zimmer A.G.
    Inventors: Stefan Zikeli, Friedrich Ecker
  • Patent number: 7172713
    Abstract: A solution casting process for producing cellulose triacetate (TAC) film is provided. Bead of dope, which includes cellulose triacetate and solvent, is cast on to a rotating supporting drum, to form self-supporting cast film. The self-supporting cast film is stripped from the supporting drum. The self-supporting cast film is dried while the self-supporting cast film being stripped is fed by feed rollers, to form the cellulose triacetate film. A surface temperature of the feed rollers is set equal to or lower than 0° C. The self-supporting cast film upon being stripped has modulus of longitudinal elasticity equal to or more than 450,000 Pa.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: February 6, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshinao Arai, Hidekazu Yamazaki, Hitoshi Ikeda
  • Patent number: 7141195
    Abstract: A process for making engineered lignocellulosic-based panels with superior strength and dimensional stability. The process comprising adding to green lignocellulosic particles a low-nitrogen content, high molecular weight, phenol-formaldehyde resin before the green particles are dried. The resin is added in an amount from about 1 to 25 weight percent based on the dry weight of the green lignocellulosic particles. The resin has a nitrogen content of from about 0 to 3%, a viscosity of from about 20 to 2000 cps at 20° C., and a molar ratio of formaldehyde/phenol of from about 1.2 to 3.0. The green lignocellulosic particles treated with the resin are dried until the particles have a moisture content of from 1 to 8%. A second resin is added to the dried particles and then the dried particles are consolidated under heat and pressure to form the engineered panel.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: November 28, 2006
    Assignee: Weyerhaeuser Co.
    Inventors: Jack G. Winterowd, Roger M. Shantz, Daniel V. Hanson, Michael N. Taylor
  • Patent number: 7132071
    Abstract: A method of molding reinforced polymer compositions using a molding machine with a tapered bore is provided. The method has particular application in molding polymer that is reinforced with particles having an aspect ratio that is greater than 1:1. The plunger machine used in the method includes a barrel housing with a smooth walled barrel with longitudinal fins projecting inwardly towards the center of the bore that defines a main melt chamber. A plunger housing, having a plunger bore, defines an initial melt chamber and is in communication with the main melt chamber. A plunger resides in the plunger bore and is reciprocatable therein. The barrel bore is continuously inwardly tapered and cooperates with the longitudinal fins to provide a shortened melt period and a smooth transition and alignment of reinforcing members within the polymer mixture during the melt process.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: November 7, 2006
    Assignee: Cool Options, Inc.
    Inventor: Lyle James Smith
  • Patent number: 7112295
    Abstract: A multiple cavity (30a, 30b) mold die (10) and method for molding binder coated wood flakes (12) into multiple three dimensionally curved wood strand parts. Vertical walls (28, 32) shear a felted mat (11) of binder coated wood flakes as the mold is closed.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: September 26, 2006
    Assignee: GFP Strandwood Corp.
    Inventor: Bruce A. Haataja
  • Patent number: 7094373
    Abstract: A process and apparatus for air forming an article having a plurality of superimposed reinforced fibrous layers. The layers are formed in substantially discrete forming chambers by depositing fibrous materials on a forming surface which moves along a forming path through the chambers. A first layer is air-formed on the forming surface as the surface moves through the first forming chamber and a second layer is air-formed over the first layer as the surface moves through the second forming chamber. A reinforcing web is embedded in the article during the air-forming process.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: August 22, 2006
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: David W. Heyn, Susan J. Daniels, Derek Paul Murphy, Michael Barth Venturino
  • Patent number: 7081224
    Abstract: A solution casting system has a tentering device, and produces polymer film of cellulose triacetate. Two web edge portions of the polymer film are sucked within a section from a downstream end of the tentering device to a first roller that the polymer film contacts first. Furthermore, the two web edge portions are subjected to blowing of gas, or suction, between the first roller and a second roller positioned next downstream from the first roller. Each range of two web edge portions has an effective size in a web width direction less than 25% of that of the polymer film.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: July 25, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroshi Nakashima
  • Patent number: 7067079
    Abstract: A method for producing a plastic scintillator is disclosed. A plurality of nano-sized particles and one or more dopants can be combined with a plastic material for the formation of a plastic scintillator thereof. The nano-sized particles, the dopant and the plastic material can be combined within the dry inert atmosphere of an extruder to produce a reaction that results in the formation of a plastic scintillator thereof and the deposition of energy within the plastic scintillator, such that the plastic scintillator produces light signifying the detection of a radiative element. The nano-sized particles can be treated with an inert gas prior to processing the nano-sized particles, the dopant and the plastic material utilizing the extruder. The plastic scintillator can be a neutron-sensitive scintillator, x-ray sensitive scintillator and/or a scintillator for the detection of minimum ionizing particles.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: June 27, 2006
    Assignee: Universities Research Association, Inc.
    Inventors: Alan D. Bross, Kerry L. Mellott, Anna Pla-Dalmau
  • Patent number: 7056465
    Abstract: Post mold cooling apparatus and method having transverse movement preferably includes structure and/or steps for cooling a plurality of plastic articles molded on a row of mold cores. A post mold cooling device is provided having (i) a first row of cooling tubes configured to hold a first plurality of the molded plastic articles, and (ii) a second row of cooling tubes configured to hold a second plurality of the molded plastic articles. A cooling station is disposed adjacent the cooling device and is configured to provide a cooling fluid to an interior of both the first and second pluralities of molded articles inside the respective first and second rows of cooling tubes.
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: June 6, 2006
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Richard M. Unterlander, Witold Neter, Zbigniew Romanski, Robin A. Arnott
  • Patent number: 7052635
    Abstract: Used and manufacturing scrap asphalt shingle material processed into a fine material comprising smaller sized pieces of shingle material with a relatively high aggregate content is finish processed into shaped products by grinding and heating the aggregate and smaller sized pieces of asphalt shingle material into a homogenous mixture, extruding the homogenous mixture, and forming the shaped products via molding or cutting the extruded mixture. A surface treatment material may be embedded into a softened surface of the shaped products.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: May 30, 2006
    Assignee: American Builders and Contractors Supply Co., Inc.
    Inventor: Donald J. Mischo
  • Patent number: 7052633
    Abstract: A method for manufacturing a transparent acrylic container having colored bubbles includes the following steps: (A) preforming a plurality of colored beads, (B) forming a container made of transparent acrylic material, (C) adding a foam agent and the colored beads into the container such that the foam agent produces a plurality of transparent bubbles, and (D) curing the container to produce a container product containing a mixture containing the transparent bubbles and the colored beads, thereby producing a visible effect of colored bubbles. Thus, the transparent bubbles are mixed with the colored beads to produce a visible effect of colored bubbles, thereby enhancing the aesthetic quality of the container product.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: May 30, 2006
    Assignee: Always Plastics COmpany
    Inventor: Ying-Hui Shen
  • Patent number: 7048880
    Abstract: A molding process for a composite article uses a textured film layer to shape the surface of the composite article. The film layer is placed in the mold with the textured film surface exposed and a composite material is placed over the textured film surface. Preferably, the film layer is vacuum-formed onto the mold to take the shape of the mold. As it cures, the composite article takes the shape of the textured film layer to form a textured article surface. After demolding, the film layer adheres to the article as a protective coating, but can be readily removed from the article to expose an underlying textured surface of the article.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: May 23, 2006
    Assignee: General Motors Corporation
    Inventors: Hamid Ghavami Kia, Peter Herbert Foss, John Neal Owens, Terrence James Wathen
  • Patent number: 7037454
    Abstract: The present invention uses natural materials to manufacture disposable containers, so that the present invention has no problem of environment hormone and the like as well as does no harm to human bodies unlike polystyrene-based disposable containers. Further, the present invention foams natural materials to fabricate disposable containers, so as to solve the weakness of conventional natural material-based disposable containers, that is, the problems of fragility or deformation and weight, to thereby provide economic and environment-friendly disposable containers which are light-weighted but less damaged or deformed.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: May 2, 2006
    Inventors: Youngsik Kim, Young Choi
  • Patent number: 7022277
    Abstract: The invention relates to a method for producing objects and object parts formed by an assembly comprising at least two plastic parts (10 and 5; 10? and 5?), which can move in relation to one another with at least one degree of freedom and which are provided with surfaces having at least partially complementary shapes such that, in at least one geometric configuration, they are solidly interconnected on a common surface (11; 11?) in close, clearance-free contact The inventive method comprises the following steps: 1) molding of a first part (10, 10?) by compression or injection; 2) removal of the second tool, the first part (10, 10?) remaining solidly connected to the first tool which serves as a piece of support equipment or is installed on a piece of support equipment (60); 3) compression molding of the second part using the whole (110) of the first part which is integral to the support equipment and a third tool; 4) removal of the first support tool (60) and the third tool (55) and extraction of the assembly
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: April 4, 2006
    Assignee: CEBAL S.A.S
    Inventors: Michel Bosshardt, Bertrand Gruau
  • Patent number: 7022274
    Abstract: The present invention relates to an effective and rapid method and apparatus for sintering carbon filter blocks having a polymeric binder. The method employs direct contact heat transfer by gas molecule to powder particle, as opposed to conduction heat transfer from an external heating source, using commercially available sintered porous metal sheets and cylinders to form the mold and confine the powder, while allowing heated gas to pass uniformly through the mixture.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: April 4, 2006
    Assignee: Graver Technologies, LLC.
    Inventors: S. Dyer Harris, Joel T. Shertok, John K. LeSieur
  • Patent number: 7022273
    Abstract: A process for the production and for the winding of one polyester yarn, preferably multi-filament yarn, which comprises at least about 85 weight %, in relation to the total weight of the polyester yarn, of polytrimethylene terephthalate (PTT) wherein said process is characterized in that filaments of said polyester yarn is heat-treated, before it is wound on a bobbin, at a temperature in the range of about 70° C. to about 180° C. The method of accomplishing this is by heating the godets that are used in the spinning part of the process, preferably the last pair of godets, to relax the yarns so that the yarn package will not shrink significantly during storage and/or transportation. It is thus possible to obtain at least one PTT yarn package with long-term stability during storage and which is insensitive against elevated temperatures during storage and transport.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: April 4, 2006
    Assignee: Shell Oil Company
    Inventors: Kailash Dangayach, Kathleen Suzanne Kiibler, Michele Buscemi, Dieter Wiemer, Hansjorg Meise, Hoe Hin Chuah, Adriano Birosel Pangelinan, Houston Slade Brown
  • Patent number: 7014804
    Abstract: This invention relates to an environmentally friendly insulating material, or more specifically an insulating mat for insulating buildings, houses etc. and a method for the manufacture thereof. The mat is non-allergenic and almost 100% recyclable, and is characterized in that it consists of fabric remnants which are shredded into shoddy, mixed with a fibrous polyester with a low melting point and flax fibres to form a homogeneous mass, which is then moulded into the desired shape and then heat-treated until the polyester fibres melt, bonding the fabric and flax fibres together.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: March 21, 2006
    Inventor: Fridtjov Johansen
  • Patent number: 7011786
    Abstract: Process for producing shaped bodies comprising fiber-reinforced ceramic materials, where a green body is produced in a first step by introducing a press moulding composition into a mold, where the press moulding composition comprises carbon fibers and/or carbon filaments and pitch and/or resins which, when treated thermally and with the exclusion of oxidizing agents, form carbon-containing residues, the green body is cured in a second step by heating to a temperature of from 120° C. to 280° C. under pressure, the cured green body, also referred to as intermediate body, is carbonized in a third step by heating in a nonoxidizing atmosphere to a temperature of from about 750° C. to about 1100° C.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: March 14, 2006
    Assignee: SGL Carbon AG
    Inventors: Moritz Bauer, Michael Heine, Andreas Kienzle, Ronald Huener, Rainer Zimmermann-Chopin, Andreas Rahn
  • Patent number: 7011785
    Abstract: Process for producing hollow bodies comprising fiber-reinforced ceramic materials, where mold cores whose shape corresponds to that of the hollow spaces are produced in a first step, at least one mold core together with a press moulding composition or formable fiber composition are introduced into a mold, where the press moulding composition comprises carbon fibers and/or carbon filaments and thermally curable carbonizable binders, in such a way that the position of the cores corresponds to the desired position of the hollow spaces to be formed in a second step, the composition is cured in a third step by heating to a temperature of from 120° C. to 280° C., to give a green body, the strengthened green body is carbonized and or graphitized in a fourth step by heating in a nonoxidizing atmosphere to a temperature of from about 750° C. to about 2400° C.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: March 14, 2006
    Assignee: SGL Carbon AG
    Inventors: Moritz Bauer, Michael Heine, Andreas Kienzle, Ronald Huener, Andreas Rahn, Rainer Zimmermann-Chopin
  • Patent number: 7008579
    Abstract: The invention relates to a method and an installation for processing thermoplastic synthetic materials. According to the invention, the melt strands or the like are displaced in oscillation or pulsation in order to indent or penetrate the joint lines between at least two injection strands.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: March 7, 2006
    Assignee: Merck Patent GmbH
    Inventors: Gerhard Edler, Hans-Joachim Keim