Patents Represented by Attorney, Agent or Law Firm Marshall & Melhorn
  • Patent number: 7070750
    Abstract: The invention relates to a process for the production of ammonia from synthesis gas, the synthesis of ammonia from synthesis gas taking place in several lined-up synthesis systems, whereby ammonia is produced from a portion of the synthesis gas in each system with a part-stream being withdrawn and the respective downstream synthesis system being operated at a higher pressure than the respective upstream synthesis system.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: July 4, 2006
    Assignee: Uhde GmbH
    Inventors: Dennis Lippmann, John Skaanderup-Larsen
  • Patent number: 6802425
    Abstract: A biological fluid filter is disclosed for use in a biological fluid processing system. The biological fluid filter comprises an inlet section, with said inlet section comprising a top wall and a downstanding peripheral side wall, an outlet section complimentary in shape and bonded to said inlet section to form a chamber, said outlet section comprising a bottom wall and an upstanding wall and a filter element mechanically held in place between said inlets section and said outlet section to divide said chamber into at least an inlet chamber and an outlet chamber, said inlet chamber and said outlet chamber also in communication with a vent embedded in said filter element.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: October 12, 2004
    Assignee: Hemerus Medical, LLC
    Inventors: Majid Zia, Chaouki A. Khamis
  • Patent number: 6540884
    Abstract: A process for the production of a low emissivity coating on a glass substrate comprising, in sequence, depositing a reflective metal layer, and reactively sputtering a metal oxide layer over the metal layer in the presence of an oxygen scavenger. The oxygen scavenger is preferably a hydrocarbon, in particular methane. The metal oxide layer may comprise tin oxide, zinc oxide, tungsten oxide and other metal oxides are also likely to be suitable.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: April 1, 2003
    Assignee: Pilkington PLC
    Inventors: John Robert Siddle, Axel Nöthe
  • Patent number: 6261153
    Abstract: This invention relates to an improved apparatus and method for finish machining brake components. The apparatus includes an electrode ring adapted to be secured to a rotatable shaft. The electrode ring includes at least one plurality of circumferentially spaced apart electrodes adapted to be electrically connected to a power supply. Each one of the at least one plurality of electrodes are arranged adjacent each other around the circumference of the electrode ring. The apparatus further includes a positioning mechanism for positioning a rotating, electrically grounded rotor adjacent the electrode ring until sparks are formed between the electrode ring and the rotor. The sparks vaporize a portion of the rotor surface thereby creating a finished surface on the rotor having the desired dimensions.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: July 17, 2001
    Assignee: Hayes Lemmerz International, Inc.
    Inventors: Weston E. Dickerson, Petar Jakovljevic
  • Patent number: 6250013
    Abstract: A device is proposed for opening and closing an opening in a wall by use of a sliding door, in particular for vehicles. The sliding door is arranged so as to be slidable essentially parallel to the wall by a guide device and drivable by a linear drive which comprises a linearly constructed element and a driving element engaged therewith. The linearly constructed element of the linear drive and a slide rail belonging to the guide device on the one hand are attached to the wall, and the driving element of the linear drive and a slider belonging to the guide device and engaged with the slide rail on the other hand are attached to the sliding door. The slider is attached to the sliding door by a joint.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: June 26, 2001
    Assignee: Apprich Secur 2000 GmbH
    Inventor: Harry Apprich
  • Patent number: 6231660
    Abstract: A manufactured granular substrate composition suitable for use as a carrier for active chemical agents. The composition includes about 65 wt % or more of one or more mineral components having a bulk density greater than about 70 pounds per cubic foot. The composition also contains about 5 wt % to about 25 wt % of one or more light weight additives and up to 20 wt % of one or more water soluble binders. The resulting manufactured granular substrate is readily dispersable in water and has a bulk density of less than about 55 pounds per cubic foot with a size guide number of about 100 to about 230.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: May 15, 2001
    Assignees: The National Lime and Stone Co., The Andersons, Inc.
    Inventors: James W. Welshimer, David L. Ashworth, Peter V. Cawlfield, Nadine C. Dunn, Gerald L. Gingrich, Karissa L. Fox, Kim W. Venable, Paul Weinstein, Timothy D. Birthisel
  • Patent number: 6222511
    Abstract: A drive system is shown for AC plasma (ACP) gas discharge flat bistable matrix panels on which real-time video and computer graphics, both with pixel by pixel gray scale are displayed. The drive scheme increases scan speed, reduces complexity, and minimizes the circuitry required to operate the video and computer graphics on the ACP display by a unique application of standard high density memory IC architecture and panel drive waveform technique applying all of the drive voltages to the ACP panel from the row (Y) axis and only selective cancellation voltage from the column (x) axis.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: April 24, 2001
    Assignee: Photonics Systems, Inc.
    Inventors: Ray A. Stoller, Michael B. Stalker
  • Patent number: 6214085
    Abstract: This invention relates to making steel directly from ore concentrate and non-coking coal to which flux material is added. The method eliminates numerous steps by reducing the ore with the coal in a sealed chamber and under pressure termed “carbotreating” to make a fluxed iron/carbon product which after crushing, is injected while hot into a melting furnace. The hot product is melted with oxygen under reducing conditions using excess carbon from the coal to make a carburized molten iron and a slag low in FeO termed “oxymelting”. After the tapping of the slag, the carburized molten iron to which flux material is added, is blown with oxygen to make steel, CO, and a slag high in FeO termed “decarburizing”. The steel is tapped while the slag is retained in the furnace. All of the above steps are carried out in an efficient and environmentally sound manner which render the art of steelmaking significantly more economical than conventionally practiced.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: April 10, 2001
    Assignee: Calderon Energy Company of Bowling Green, Inc.
    Inventors: Albert Calderon, Terry James Laubis
  • Patent number: 6204923
    Abstract: An apparatus is proposed for the color matching or colorimetry of colored samples, which are arranged in a sample support. It comprises a lighting device which illuminates the sample in a main beam direction and an observer provided at an observation position or a measuring device arranged at an observation position, the sample and observation position having a fixed coordination with each other. The sample and the lighting device are arranged in fixed coordination with each other and, to set different angles of observation between the direction of observation from the observation position to the sample and the main beam direction, the sample and the lighting device are pivotable about a common axis of rotation.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: March 20, 2001
    Assignee: Dr. Ing. Willing GmbH
    Inventor: Achim Willing
  • Patent number: 6204355
    Abstract: The invention relates to the use of polyamide moulding compounds, their alloys or blends, which contain at least one homopolyamide, which has been obtained from long-chained aliphatic monomer blocks with cycloaliphatic monomer blocks, in order to manufacture moulded members for optical or electro-optical applications.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: March 20, 2001
    Assignee: EMS-Inventa AG
    Inventors: Hans Dalla Torre, Ralf Hala
  • Patent number: 6200444
    Abstract: The invention concerns a cation-selective sensor provided with a cation-selective coating and based on the fact that analyte ions present in a solution cause detectable changes in the electrical characteristics of the layer. The acid/base components in the cation-selective layer render the sensor function independent of the anions present in the analyte solution. This improves the measurement accuracy and lowers the detection threshold.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: March 13, 2001
    Assignee: Institut fuer Chemo und Biosensorik Muenster e.V.
    Inventors: Benedikt Ahlers, Alexandre Choulga, Karl Cammann
  • Patent number: 6196027
    Abstract: The invention is a method of making silicate based glass compositions with phosphorus compounds included in the composition as spectral modifiers to impart desirable color and improved energy absorbance properties. The phosphorus compound is generally a metal phosphide which is added to the batch glass composition in amounts greater than 0.05 weight percent prior to melting. The composition and method result in a finished glass suitable for use in architectural and automotive glazings.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: March 6, 2001
    Assignee: Libbey-Owens-Ford Co.
    Inventors: Srikanth Varanasi, Michael B. Purvis, Paige L. Higby, Kevin V. Goodwin, Gwendolyn A. Young
  • Patent number: 6192652
    Abstract: A spacing profile for a spacing frame, which is to be fitted in the edge area of a double-glazing unit, forming an interspace, with a profile body of a material possessing low thermal conductivity and with a diffusion-impermeable metal foil which is bonded to the profile body so as to establish a material fit, is characterized in that the metal foil is, at least on the surface facing away from the profile body, provided with a corrosion preventing coating which comprises a colored lacquer coating and/or a layer of chromium or of a chromium alloy, wherein the corrosion preventing coating comprises a thickness which is lower by at least a factor of 2.5, preferably by at least a factor of 10 and further preferred by at least a factor of 20, as compared to the thickness of the metal foil.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: February 27, 2001
    Assignee: Flachglas Aktiengesellschaft
    Inventors: Bernhard Goer, Franz-Josef Rotmann, Juergen Regelmann
  • Patent number: 6194537
    Abstract: Nylon 6 chip is obtainable by hydrolytic polymerization of caprolactam in the presence of dicarboxylic acids as chain regulators, subsequent processing of the polymer melt into chip, extraction of the low molecular weight portions from the chip with water and subsequent drying of the chip.
    Type: Grant
    Filed: January 13, 1999
    Date of Patent: February 27, 2001
    Assignee: Karl Fischer Industrieanlagen GmbH
    Inventors: Eberhard Raue, Reiner Hagen
  • Patent number: 6191195
    Abstract: The invention relates to a heat-curing coating material consisting of a carboxyl-functional polyester, and an epoxy resin and also at least one additional stabilizer.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: February 20, 2001
    Assignee: Ems-Inventa AG
    Inventors: Andreas Kaplan, Manfred Wenzler, Juerg Heinz
  • Patent number: 6191059
    Abstract: Silicate based glass compositions with metal silicide compounds included in the composition as performance modifiers to impart desirable color and improved energy absorbance properties. The metal silicides are added to the batch glass composition in amounts greater than 0.05 weight percent prior to melting. The composition and method result in a finished glass suitable for use in architectural and automotive glazings.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: February 20, 2001
    Assignee: Libbey-Owens-Ford Co.
    Inventor: Srikanth Varanasi
  • Patent number: 6186292
    Abstract: The noise created by a vehicle rotor is reduced by adjusting the natural or resonant frequency at which the rotor tends to vibrate. The resonant frequency is moved away from the frequencies of excitation of such sources as the brake pads and vehicle drive train components. The resonant frequency of the rotor is adjusted by manipulating the geometry and mass of the rotor by adjusting the number, size, shape, spacing and location of cooling vents formed in the hat section of the rotor. The resulting rotor exhibits improved vibrational control.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: February 13, 2001
    Assignee: Hayes Lemmerz International, Inc.
    Inventors: Weston E. Dickerson, Charles E. Burger
  • Patent number: D437646
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: February 13, 2001
    Assignee: Moriyama Sangyo Kabushiki Kaisha
    Inventors: Masahito Higano, Munehiko Yanagita, Katsunori Sato
  • Patent number: D438331
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: February 27, 2001
    Assignee: Moriyama Sangyo Kabushiki Kaisha
    Inventors: Hideo Moriyama, Masayuki Katogi, Hiroaki Machii
  • Patent number: D494342
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: August 17, 2004
    Inventors: Joseph P. Gebhardt, Alexandra L. Gebhardt