Patents Assigned to E
  • Patent number: 6240220
    Abstract: A fiber optic package and methods for varying the tension within a fiber Bragg grating or other fiber-based optical device subjects a fiber (having the fiber Bragg grating written therein) to a controlled strain. The resulting strain in the fiber produces a desired and predetermined change in the grating wavelength.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: May 29, 2001
    Assignee: E-Tek Dynamics, Inc.
    Inventors: Jing-Jong Pan, Feng-Qing Zhou
  • Patent number: 6236460
    Abstract: A method for determining light scattering efficiency and a method to determine undertone of pigments or mixtures containing white pigments are described. The methods are based on measuring total transmittance of pigment slurries at a wavelength of at least 600 nm. Transmittance measurements can be used to calculate light scattering efficiencies and undertone which correlate with performance in end-use applications.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: May 22, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Robert William Johnson
  • Patent number: 6236173
    Abstract: A series wound commutator motor is disclosed which is particularly suited for an inverse-speed electric tool. A switch is provided for switching between a motor operation mode and a braking operation mode, wherein in motor operation at least one field coil is connected in series with an armature winding in a motor circuit fed with a voltage supply and wherein in braking operation the at least one field coil with the armature winding forms a closed braking circuit separated from the voltage supply. A mains-supplied transformer is provided whose secondary winding is connected in the braking circuit parallel to the at least one field coil. A transistor circuit is provided for controlling the current flowing in the braking circuit through the armature winding and the at least one field coil.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: May 22, 2001
    Assignee: C. & E. Fein GmbH & Co.
    Inventor: Christoph Meyer
  • Patent number: 6235390
    Abstract: The present invention relates to industrial high relative viscosity (RV) filaments, such as, for use in papermaking machine felts and other staple fiber applications. The invention is further directed to apparatus and processes for solid phase polymerization (SPP) of polyamide flake suitable for use, such as, in remelting and then spinning the industrial high RV filaments. The invention is also directed to processes for melt phase polymerization (MPP) of molten polymer for making the filaments.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: May 22, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Glenn Alan Schwinn, Gary Raymond West
  • Patent number: 6235166
    Abstract: An electrically driven membrane process apparatus is provided comprising a first spacer having a perimeter having a surface with an inner peripheral edge defining an opening, and a recess formed on the inner peripheral edge, and an ion exchange membrane having an outer edge fitted within the recess. The spacer can further comprise a plurality of bosses and an ion exchange membrane having a corresponding plurality of apertures for receiving the bosses. The spacer can include a plastic mesh consisting essentially of polypropylene or polyethylene, and a perimeter surrounding the plastic mesh, the perimeter comprising material selected from the group consisting of thermoplastic vulcanizates and thermoplastic elastomeric olefins. The spacer can have an upstanding seal member depending therefrom, received by groove within a corresponding frame member. A second spacer is also provided having a continuous flange depending from its surface and surrounding a throughbore, for pinching a portion of the first spacer.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: May 22, 2001
    Assignee: E-Cell Corporation
    Inventors: Ian Glenn Towe, Matthew J. Yagar, Eduard Erbiceanu, Tazim Jinnah, Neil Smith, Thomas Moffett
  • Patent number: 6236777
    Abstract: An improvement in the reliability of an optical communication system comprising two optical fiber lines, a first transmitter for transmitting at least a signal in the first optical line, a second transmitter for transmitting at least a signal in the second optical line, at least one two-stage-amplifier in each of said first and second line, laser pumps providing pumping signals to said stages of the amplifiers, a first receiver for receiving the signal from the first optical line, and a second receiver for receiving the signal from the second optical line, wherein said laser pumps form a single system that provides a first pumping signal to at least one stage of said at least one amplifier of each of said first and second line.
    Type: Grant
    Filed: May 12, 1998
    Date of Patent: May 22, 2001
    Assignee: Pirelli Cavi e Sistemi S.p.A.
    Inventors: Filippo Bentivoglio Ravasio, Paolo Ottolenghi
  • Patent number: 6235882
    Abstract: This invention relates to the isolation of a novel putative efflux gene from Pseudomonas mendocina. The putative efflux gene is useful for probing an organism's efflux system to gain an understanding of the mechanisms of solvent tolerance. The invention further provides a Pseudomonas mendocina strain deficient in this gene. This strain is unable to grow in the presence of chloramphenicol and, compared to the wildtype strain, grows slowly in the presence of high concentrations of PHBA.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: May 22, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Kevin Keqin Chen
  • Patent number: 6235948
    Abstract: Disclosed is a process for the removal of impurities, especially color forming impurities, from 1,3-propanediol.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: May 22, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hari Babu Sunkara, Robert John Umile, II
  • Patent number: 6232483
    Abstract: Certain nickel [II] complexes of selected ortho-phosphine substituted arylsulfonamides or selected phosphine containing alkylsulfonamides catalyze the polymerization of ethylene. The polymers produced may be used as lubricants or in waxes. Some of these nickel [II] complexes and the phosphine containing ligands are also novel compounds.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: May 15, 2001
    Assignee: E. I. du Pont Nemours and Company
    Inventors: Jordan Lawrence Bennett, Maurice S. Brookhart, III, Lynda Kaye Johnson, Christopher Moore Killian
  • Patent number: 6232502
    Abstract: A method for making monomethylamine, dimethylamine and trimethylamine, in which methanol and/or dimethylether and ammonia are contacted in the presence of an acidic zeolite chabazite catalyst is disclosed. The method suppresses the production of trimethylamine and optimizes dimethylamine and monomethylamine yields.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: May 15, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: David Richard Corbin, Raul Francisco Lobo, Stephan Schwarz
  • Patent number: 6232581
    Abstract: A connection flange for an armored resistance element, particularly for electric ovens, has a plate provided with a plurality of holes for insertion of end portions of the armored resistance element. Minor edges of the plate are extended into at least two profiled flat fins with their sides diverging outwards. The fins are formed during actual stamping of the plate and then are bent at 90° to be inserted into corresponding slots provided in the edges of the oven, after which they are twisted to prevent their withdrawal.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: May 15, 2001
    Assignee: I.R.C.A. S.P.A. Inoustria Resistenze Corazzate E Affini
    Inventor: Andrea Virzi
  • Patent number: 6230620
    Abstract: A bearing assembly for a rotary printing press cylinder supports a journal of the cylinder using a plurality of support rollers. At least one of the cylinder journal support rollers is moveable so that the cylinder will either be supported or can be removed from the printing press.
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: May 15, 2001
    Assignees: Koenig & Bauer Aktiengesellschaft, U. E. Sebald Druck und Verlag GmbH
    Inventors: Dieter Christmann, Hans-Dieter Drumm, Rudolf Herb, Werner Georg Roman Straubinger
  • Patent number: 6231956
    Abstract: Wear-resistant edge layer for titanium and its alloys which can be subjected to high loads and has a low coefficient of friction. The wear-resistant edge layer includes a hard amorphous carbon layer, an intermediate layer, and a laser gas alloyed layer. The wear-resistant edge layer may include a 200 to 400 nm thick hard amorphous carbon layer, a 50 to 200 nm thick intermediate layer, and a 0.3 to 2.0 mm thick laser gas alloyed layer. The laser gas alloyed layer may include precipitated titanium nitride needles and have a hardness between 600 HV0.1 and 1400 HV0.1. Process for producing a wear resistant edge layer on a substrate. The process includes forming a laser gas alloyed layer by melting a surface of a substrate, applying an intermediate layer by Laser-Arc, and depositing a hard amorphous carbon layer on the intermediate layer by Laser-Arc.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: May 15, 2001
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V
    Inventors: Berndt Brenner, Steffen Bonss, Hans-Joachim Scheibe, Holger Ziegele
  • Patent number: 6231970
    Abstract: Thermoplastic starch compositions that include a particulate filler, e.g. an inorganic filler component, and optional fibrous component The compositions include a thermoplastic phase comprising a thermoplastic starch melt that contains, at a minimum, starch blended with an appropriate plasticizing agent under conditions in order for the starch to form a thermoplastic melt. The thermoplastic phase may also include one or more additional thermoplastic polymers and other optional reactants, liquids or cross-linking agents to improve the water-resistance, strength, and/or other mechanical properties of the thermoplastic melt, particularly upon solidification. The inorganic filler component may affect the mechanical properties but will mainly be added to reduce the cost of the thermoplastic starch compositions by displacing a significant portion of the more expensive starch or starch/polymer melt.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: May 15, 2001
    Assignee: E. Khashoggi Industries, LLC
    Inventors: Per Just Andersen, Simon K. Hodson
  • Patent number: 6231855
    Abstract: Anti-anthracycline antibiotic monoclonal antibodies are useful as antidotes of the anthracycline antibiotics themselves, as well as for the treatment of anthracycline extravasation lesions and alopecia.
    Type: Grant
    Filed: May 4, 1993
    Date of Patent: May 15, 2001
    Assignee: Istituto Nazionale per lo Studio e la Cura Dei Tumori
    Inventors: Mario Ghione, Andrea Balsari, Maria Ines Colnaghi
  • Patent number: 6232369
    Abstract: An ink for ink jet printers contains an aqueous carrier medium; an aqueous carrier medium insoluble colorant; a polymeric dispersant; and a hydrosol polymer is stable, exhibits excellent print quality, and provides excellent smear resistance after drying and good decap or crusting time.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: May 15, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Sheau-Hwa Ma, Waifong Liew Anton
  • Patent number: 6232259
    Abstract: Transition metal imine complexes can be prepared by reacting the imine precursors, a carbonyl compound and a primary amine, in the presence of a selected transition metal compound. The complexes may be used as catalysts for olefin polymerization.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: May 15, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Steven Dale Ittel, Samuel David Arthur, Joel David Citron
  • Patent number: 6231755
    Abstract: The invention discloses a process for the desulfurization of petroleum products by contacting with acidic organic polymers. Preferably, highly fluorinated and, most preferably, perfluorinated acidic organic polymers are used.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: May 15, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Shaun Terrance Einar Mesher, Ralph Birchard Lloyd, Edward G. Howard
  • Patent number: 6232511
    Abstract: A process for the production of 1,3-propanediol by heterogeneously catalyzed hydrogenation of 3-hydroxypropionaldehyde in an aqueous solution at 30 to 180° C., at a hydrogenation pressure of 5 to 300 bar and a pH value of 2.5 to 7.0, wherein ruthenium on an oxide support is used as the catalyst.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: May 15, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thomas Haas, Dahai Yu, Jorg Sauer, Dietrich Arntz, Andreas Freund, Thomas Tacke
  • Patent number: 6233468
    Abstract: An improved hand-free system for use on a cellular phone, and more particularly one hand-free system can prevent an automatically-operated antenna of a vehicle's audio stereo system from being unnecessarily actuated in response to incoming signals of a cellular phone. As a cellular phone is receiving incoming signals, a vehicle's audio stereo system in operation is automatically turned off or become mute, and the received voice signals of the cellular phone are amplified and broadcast via speakers of the vehicle's audio stereo system. At the same time, the antenna of the vehicle's audio stereo system remains in its current status without being actuated till the end of the operation of a cellular phone; afterwards, the audio stereo system is automatically started again.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: May 15, 2001
    Assignee: E. Lead Electronic Co., Ltd.
    Inventor: Tonny Chen