Patents Represented by Attorney, Agent or Law Firm Schnader Harrison Segal & Lewis
  • Method for manufacturing magnetic steel sheet having superior workability and magnetic properties
    Patent number: 6406558
    Abstract: Manufacturing semiprocessed non-oriented magnetic steel sheets, which has superior workability in steps of assembling cores for motors or the like, in which improvement in productivity and higher accuracy of the products can be realized, by hot rolling a steel slab containing about 0.001 to 0.03 wt % C, about 0.1 to 1.0 wt % Si, about 0.01 to 1.0 wt % Al, about 0.05 to 1.0 wt % Mn, and about 0.001 to 0.15 wt % P, cold rolling the hot rolled sheet, continuous annealing the cold rolled sheet, and skin pass rolling the annealed sheet, wherein the average cooling rate in the continuous annealing process is about 10° C./second or more and skin pass rolling is performed at a reduction rate of about 0.5 to 5% within about 20 hours after continuous annealing.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: June 18, 2002
    Assignee: Kawasaki Steel Corporation
    Inventors: Mitsumasa Kurosawa, Masaki Kawano, Michiro Komatsubara, Keiji Sakai, Toshiro Fujiyama
  • Apparatus for measuring and of controlling the gap between polymer sheet cooling rolls
    Patent number: 6406285
    Abstract: An apparatus for heating and extruding a polymeric sheet having a predetermined thickness and introducing it into and through a gap between cooling rolls, measuring directly by laser beam and without reflection the gap between the cooling rolls, and controlling the gap to control minimal pressure on the softened and heat-plastified sheet.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: June 18, 2002
    Assignee: Welex Incorporated
    Inventor: Frank R. Nissel
  • Method of constructing a blast furnace body and lifting transfer apparatus
    Patent number: 6403021
    Abstract: A method and lifting transfer apparatus for dismantling an existing blast furnace body by dividing it into a plurality of furnace-body ring blocks, and efficiently transporting each of the ring blocks to and from a furnace-body disassembly site and back to the hearth for assembly of a repaired or rebuilt furnace body.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: June 11, 2002
    Assignee: Kawasaki Steel Corporation
    Inventors: Masao Fujita, Hirotaka Kojima
  • Ignition inhibiting gas water heater
    Patent number: 6401668
    Abstract: A water heater including a water container; a combustion chamber located adjacent the container, the combustion chamber having a floor portion with an opening; a conduit extending upwardly from and being substantially sealed to the opening; a burner located inside the combustion chamber; and a flame trap positioned across the conduit, the flame trap permitting ingress of air and/or extraneous gases into the combustion chamber and prevent egress of flames from the structure.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: June 11, 2002
    Assignee: SRP 687 Pty. Ltd.
    Inventor: Zoran Valcic
  • Polypropylene terephthalate twisted yarn and method for producing the same
    Patent number: 6399194
    Abstract: The present invention offers polypropylene terephthalate textured yarn which has little dyeing unevenness or fibrillation, and is outstanding in its product quality, by carrying out texturing at the same time as drawing under specified conditions using polypropylene undrawn yarn; together with a method for the production thereof.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: June 4, 2002
    Assignee: Toray Industries, Inc.
    Inventors: Hideaki Kunisada, Katsuhiko Mochizuki, Koji Sugano, Yuhei Maeda
  • Method and apparatus for producing synthetic resin films
    Patent number: 6398993
    Abstract: A film production process having a film tentering step and a recovering step, characterized by detecting the side edge positions of the film running toward the recovering step, transferring the film running direction based on the detected information, and controlling the clamp start position of the film arriving at a tenter in the tentering step by clamp means, in the transverse direction of the film. A film production process having a film tentering step, characterized by controlling the clamp start position of a film arriving at a tenter by clamp means, in the range from 5 mm to 1,000 mm from the tip of the film in the longitudinal direction of the film.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: June 4, 2002
    Assignee: Toray Industries, Inc.
    Inventors: Haruhisa Yushio, Takanori Nishida, Koji Hayashi, Hidetoshi Okashiro, Tatsu Iinuma
  • Phenolic resin composition for fiber-reinforced composite material, prepreg for fiber-reinforced composite material, and process for producing prepreg for fiber-reinforced composite material
    Patent number: 6391959
    Abstract: The phenolic resin composition for fiber-reinforced composite materials of the invention comprises at least the following constituent elements A and B of a thermoplastic resin: A: phenolic resin, B: at least one thermoplastic resin selected from polyvinyl formals, polyvinyl acetals, polyvinyl butyrals, polyvinyl pyrrolidones, polyvinyl acetates, polyvinyl alcohols, polyethylene glycols, copolymerized nylons and dimer acid polyamides. The resin composition is filmwise applied to reinforcing fibers, and the resulting film is heated under pressure whereby it is impregnated into the reinforcing fibers to give a prepreg for fiber-reinforced composite materials.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: May 21, 2002
    Assignee: Toray Industries, Inc.
    Inventors: Hiroaki Ninomiya, Nobuyuki Tomioka, Takeshi Terashita, Hideo Nagata, Hajime Kishi
  • Method of stabilizing useful protein and useful protein compositions
    Patent number: 6391296
    Abstract: A method of stabilizing a useful protein by mixing a useful protein and an aqueous solution of a compound having the basic structure of arabic acid, and a stabilizied useful protein compositon containing a useful protein and a compound having the basic structure of arabic acid; gum arabic is preferred as a compound having the basic structure of arabic acid, and examples of a useful protein include cytokine and interferon; and a production method for canine interferon-&ggr; and stabilization thereof.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: May 21, 2002
    Assignee: Toray Industries, Inc.
    Inventors: Fumiyoshi Okano, Katsushige Yamada, Masatoshi Watanabe, Naomi Hara, Akira Yanai
  • Stainless steel having excellent antibacterial property and method for producing the same
    Patent number: 6391253
    Abstract: The present invention provides a stainless steel being excellent in workability, corrosion resistance and antibacterial property. To be more specific, a stainless steel containing 10 wt % or more of Cr is rendered to contain 0.0001-1 wt % of Ag, or further one or more members selected from Sn: 0.0002-0.02 wt %, Zn: 0.0002-0.02 wt %, Pt: 0.0002-0.01 wt %, and, in addition, is rendered to dispersedly contain a total of 0.001 % or more in an area percentage of one or more members of a silver particle, a silver oxide and a silver sulphide each having a mean grain diameter of 500 &mgr;m or less. To disperse the silver particle, silver oxide and silver sulphide uniformly, the casting rate of continuous casting is preferably controlled to range from 0.8 to 1.6 m/min.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: May 21, 2002
    Assignee: Kawasaki Steel Corporation
    Inventors: Misako Tochihara, Takeshi Yokoto, Susumu Satoh, Sadao Hasuno
  • Method for determining the state of charge of storage batteries
    Patent number: 6388450
    Abstract: A method for determining the state of charge of a storage battery, wherein at least two methods of different approach for determining state of charge are simultaneously applied. The individually obtained results of the different methods are weighted in accordance with their respective reliability in the respective current or former operating situation of the storage battery, and the weighted mean value of the individual methods thus obtained is used as final output variable of the method and displayed. The voltage of the storage battery, the current flowing through it and its temperatures are measured, and the different methods use these input variables and variables derived from these input variables as final input variables. At least one of the different methods uses the integration of the current flowing through the storage battery to determine the changes in the charge content of the storage battery.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: May 14, 2002
    Assignee: VB Autobatterie GmbH
    Inventors: Gerolf Richter, Eberhard Meissner
  • Apparatus for treating wastewater
    Patent number: 6383370
    Abstract: An apparatus for treating wastewater including a physical-chemical reactor; a chemical supply operably connected to the physical-chemical reactor; a clarifier operably connected to and located downstream of the physical-chemical reactor; a ballast recirculation line operably connected between the clarifier and the high rate physical-chemical reactor; and a control system that directs a) influent into 1) the clarifier but not the physical-chemical reactor when flow or pollutants of the influent is within a selected low range and 2) the physical-chemical reactor and then into the clarifier when the flow/pollutants of influent is within a selected higher range and b) internally generated ballast into the physical-chemical reactor through the ballast recirculation line when the pollutants and/or flow is within the selected higher range.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: May 7, 2002
    Assignee: Infilco Degremont Inc.
    Inventors: Christopher S. Keever, Stephen Tarallo
  • Ferritic stainless steel plate
    Patent number: 6383309
    Abstract: A ferritic stainless steel plate of excellent ridging resistance and formability, as well as a manufacturing method thereof are proposed. Specifically, the rolling is conducted at a rolling reduction of 30% or more in at least 1 pass and at a temperature difference between the center of the plate thickness and the surface of 200° C. or lower in a pass for the maximum rolling reduction to cause the area ratio of a {111} orientation colony to be present by 30% or more in the regions of ⅛ to ⅜ and ⅝ to ⅞ of the plate thickness. The {111} orientation colony is an assembly of adjacent crystals in which the angle of <111> orientation vector for each of the crystals relative to the direction vector vertical to the rolling surface is within 15°.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: May 7, 2002
    Assignee: Kawasaki Steel Corporation
    Inventors: Norimasa Hirata, Takeshi Yokota, Yasushi Kato, Takumi Ujiro, Susumu Satoh
  • Method for resolving optical isomers
    Patent number: 6379552
    Abstract: A method for efficiently resolving optical isomers, in which a discriminating liquid consisting of a discriminating agent capable of discriminating optical isomers and a diluent are brought into contact with a mixture containing said optical isomers in countercurrent flow, to resolve the optical isomers by adsorption separation, distillation separation, absorption separation or membrane separation, and recovered at an optical isomer content of 5 wt % or less for recycled use, under one or more of the following conditions: (a) the dielectric constant of the diluent is 30 or less and the viscosity of the discriminating liquid is 0.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: April 30, 2002
    Assignee: Toray Industries, Inc.
    Inventors: Tetsuji Kitagawa, Atsushi Okamoto, Takashi Kanai, Katsuhiro Shibayama, Tomoyuki Aoki, Shinobu Yamakawa
  • Natural draft water heater
    Patent number: 6378777
    Abstract: The invention relates to a water heater comprised of a cylindrical tank 18 which has a central flue 20 that is mounted with the cylinder axis 40 vertical. The water heater further includes a gas burner 22 provided the base of the tank 18, which burns a gaseous fuel so as to discharge heated gases up through the central flue 20 from the base to the top of the tank 18. A housing 12 surrounds the exterior of the tank and is spaced away from the domed top 34 and side walls of the tank 18, to thereby define a generally annular cylindrical space 36 between the radially outer surface of the tank 18 and the radially inner surface of the housing 12. The annular space 36 is in gas flow communication with the upper end of the flue 20 and is provided with a discharge outlet 48 located at or adjacent the lower most end of the tank 18.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: April 30, 2002
    Assignee: Southcorp Australia Pty Ltd.
    Inventors: Zoran Valcic, Geoffrey Mervyn Whitford
  • Sheet processing system
    Patent number: 6375452
    Abstract: A sheet processing system for continuously producing plastic sheet which is continuously supplied to an intermittent take-up device, utilizing a sheet forming apparatus, a conveyor, an accumulator and take-up apparatus, the sheet being fed along the conveyor to an accumulator positioned integrally with the conveyor, the accumulator being controlled in a cyclic operation which provides for the accumulation of the continuously fed sheet material to permit intermittent operation of the take-up apparatus, and the edge trimming of the sheet subsequently to the action of the accumulator.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: April 23, 2002
    Assignee: Welex, Incorporated
    Inventor: Frank R. Nissel
  • Thermoplastic resin composition, production thereof, and molded article thereof
    Patent number: 6375863
    Abstract: A thermoplastic resin composition which comprises 100 parts by weight of thermoplastic resin as component (A) which is at least one species selected styrene resin, polycarbonate resin, and polyphenylene ether resin, and 0.5-100 parts by weigh of liquid crystalline polymer as component (B), said thermoplastic resin as component (A) having a glass transition point the rate of change of which satisfies the equation (1) below. Rate of change (%)=|(TgA−TgT)/TgA|×100≦5  (1) where TgA is the glass transition point of the thermoplastic resin as component (A), and TgT is the glass transition point attributable to the thermoplastic resin as component (A) in the resin composition.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: April 23, 2002
    Assignee: Toray Industries, Inc.
    Inventors: Kouji Tachikawa, Hideyuki Umetsu, Yoshiki Makabe
  • Method for the removal of mercury and nitrogen oxides from combustion flue gas
    Patent number: 6375909
    Abstract: The process is by injection of calcium chloride into the combustor and lowering the flue gas temperature in sufficient time to enhance oxidation of mercury and nitrogen oxides into more soluble products prior to their absorption in a wet scrubber. The additive also increases the alkalinity and the pH of the scrubber water, therefore, favorably increasing the absorption of the pollutants. The flue gas is then cooled to ambient temperature or less to enhance the removal of mercury.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: April 23, 2002
    Assignee: Infilco Degremont Inc.
    Inventors: Ky Dangtran, Troy C. Holst
  • Adjustable mount for a gas control valve of a water heater
    Patent number: 6371057
    Abstract: A fitting for connecting a gas control valve to a water storage tank of a gas water heater comprising a base member having an elongated opening sized and shaped to receive a mating locator attached to the tank, which permits connection of the valve and tank together and allows relative movement while the connection is maintained.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: April 16, 2002
    Assignee: SRP 68/Pty. Ltd.
    Inventor: Alan D. Henderson
  • High efficiency depth filter and methods of forming the same
    Patent number: 6372004
    Abstract: A composite filter for removing particulates entrained in a gas has stack of at least two non-pre-bonded tiers of filter material which are bonded together to form a unitary stratified structure. The tiers can include thermally bindable components such as bicomponent or monocomponent polymer fibers, or adhesively bindable components, such as pulp fibers, especially fluff pulp, split film fibers, mixed electrostatically charged fibers and staple fibers. In addition to vacuum cleaner bags, the novel filter composite can be utilized in applications such as heating ventilation and air conditioning (HVAC) systems, vehicle cabin air filters, high efficiency (so-called “HEPA”) and clean room filters, emission control bag house filters, respirators, surgical face masks and the like.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: April 16, 2002
    Assignee: Airflo Europe N.V.
    Inventors: Jan Schultink, Bas Schultink
  • Candle wick trimming device
    Patent number: D458100
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: June 4, 2002
    Inventor: Christopher F. Bowers