Patents Assigned to E
  • Electronic intrusion detection system for monitored environments
    Patent number: 6081193
    Abstract: An electronic intrusion detection system for monitoring environments having at least one electronic sensor responsive to movements occurring in the environment and adapted to modify at least one characteristic of its electrical output in response to the presence of a moving body in the environment. An alarm is signaled when the modification meets a predetermined condition. A transducer is provided for continuously converting the modification of the output from the electric sensor into a signal that can be perceived by a human being. An alarm control unit connected to the alarm and transducer forwards the signals to the surveillance personnel through a telephone line.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: June 27, 2000
    Assignee: Tecno Alarm SNC Di Trucchi Luciano E Negro Giovanni
    Inventors: Luciano Trucchi, Giovanni Negro
  • Apparatus for coating a solution onto a sheet substrate
    Patent number: 6079352
    Abstract: The invention relates to an apparatus and a method of using the apparatus for applying a substantially uniform coating of solution onto a substrate. The apparatus includes a substrate support having a compressible surface.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: June 27, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Frank Santo Principe, Jeffrey Glenn Innocenzo
  • Process for forming images on permanent substrates
    Patent number: 6080525
    Abstract: A method for forming images on a substrate wherein imaging is performed on a photosensitive element, the method including the steps of (a) providing a photosensitive element having a support, a dry strippable layer and a first photosensitive layer, wherein the dry strippable release layer is present between the support and the photosensitive layer; (b) imaging the photosensitive element; (c) toning to form a photosensitive element having an imagewise toned surface; (d) applying an additional photosensitive layer to the imagewise toned surface of the photosensitive element; (e) forming a final imaged element by removing the support from the toned, photosensitive element; and (f) placing the final imaged element on the substrate to form a final image on the substrate.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: June 27, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Daphne Pinto Fickes, Jeffrey Wayne Milner, Harvey Walter Taylor, Jr.
  • Detection of fungal pathogens
    Patent number: 6080543
    Abstract: Unique DNA sequences are provided which are useful in identifying different pathogenic fungi, such as those which infect grape plants. These unique DNA sequences can be used to provide oligonucleotide primers in PCR based analysis for the identification of fungal pathogens. The DNA sequences of the present invention include the internal transcribed spacer (ITS) of the ribosomal RNA gene regions of particular fungal pathogens, as well as oligonucleotide primers which are derived from these regions which are capable of identifying the particular pathogen.
    Type: Grant
    Filed: December 8, 1997
    Date of Patent: June 27, 2000
    Assignee: E. & J. Gallo Winery
    Inventors: Stacia R. Engel, Richard A. Descenzo, Nancy A. Irelan
  • Implantable enzyme-based monitoring systems adapted for long term use
    Patent number: 6081736
    Abstract: Improved implantable monitoring systems suitable for long-term in vivo use to measure the concentration of one or more prescribed substances, such as glucose are described herein. In particular, an implantable enzyme-based glucose monitoring system is described that includes at least one of the following: means for replenishing the enzyme solution as it is consumed by the enzymatic reaction; means for replenishing the electrolyte solution bathing the electrode assembly; and microprocessing means proximal the electrode assembly. In preferred embodiments a microprocessor assembly is hermetically associated with the substrate to which the electrode assembly is affixed. Further, the monitoring systems employ one or more reservoir systems in fluid communication with enzyme and electrolyte chambers wherein the enzyme and electrolyte solutions are used.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: June 27, 2000
    Assignee: Alfred E. Mann Foundation
    Inventors: Michael S. Colvin, Joseph H. Schulman, Lyle Dean Canfield, Rajiv Shah
  • Method of pasteurizing meat products
    Patent number: 6080437
    Abstract: A process for preparing prepackaged pasteurized meat parts in which the parts are pasteurized at a low temperature for an extended period of time so as to enable thorough and even heating of the parts to eliminate bacterial contamination within the parts. After the parts have been pasteurized, the pasteurized parts are cooled and then frozen. The frozen parts are then packaged for shipment and sale.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: June 27, 2000
    Assignee: James E. Mauer
    Inventors: James E. Mauer, Harry Stuckey, Benedict DiGerlando
  • Preparation of arthropodicidal oxadiazines
    Patent number: 6080856
    Abstract: A method for making arthropodicidal oxadiazines and intermediates which are racemic or enantiomerically enriched at their chiral center, the method for making the oxadiazines comprising reaction of an intermediate selected from ##STR1## wherein: R.sup.1 is F, Cl, or C.sub.1 -C.sub.3 fluoroalkoxy,R.sup.2 is C.sub.1 -C.sub.3 alkyl, andR.sup.4 is H or CO.sub.2 CH.sub.2 (C.sub.6 H.sub.5).as well as certain selected intermediates including those depicted above, and methods of making them.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: June 27, 2000
    Assignee: E. I. du Pont Nemours and Company
    Inventors: Gary David Annis, Stephen Frederick McCann, Rafael Shapiro
  • Titanium-containing catalyst composition and processes therefor and therewith
    Patent number: 6080834
    Abstract: A catalyst composition is disclosed. The composition comprises a titanium compound, a complexing agent, a solvent, and optionally a cocatalyst. The cocatalyst can be a cobalt/aluminum catalyst, an antimony compound, or combinations thereof. Also disclosed is a process for producing the composition. The process comprises combining a titanium compound, a complexing agent, a solvent, and optionally a cocatalyst. Further disclosed is a process for using the composition which comprises contacting a carbonyl compound, in the presence of the composition, with an alcohol under a condition suitable for esterification, transesterification, polymerization, or combinations thereof.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: June 27, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Donald Edward Putzig, Edward Francis McBride, Hiep Quang Do, James Arthur Trainham, Hermann Ludwig Jaeger, Heiner Schulte
  • Aminonitrile production
    Patent number: 6080884
    Abstract: A process for selectively hydrogenating a dinitrile to an aminonitrile is provided. The process comprises contacting a dinitrile with a hydrogen-containing fluid in the presence of a solvent and a metal catalyst in which the solvent comprises liquid ammonia, an alcohol, ammonium hydroxide, or combinations thereof and the metal catalyst comprises nickel and iron and can be supported on an inorganic support such as, for example, magnesium oxide.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: June 27, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Stanislaw Bogdan Ziemecki, Alex Sergey Ionkin
  • Coatings that contain reactive silicon oligomers
    Patent number: 6080816
    Abstract: A coating comprising the silated reaction product of R.sup.1 (OH).sub.m and OCN(CH.sub.2).sub.t SiR.sup.4 (OR.sup.5).sub.2 and/or R.sup.2 --(SiYX.sub.2).sub.n ; a graft copolymer having an acrylic polymer based backbone and stabilizing arms comprising ethylenically unsaturated monomer, the backbone being insoluble and the arms being soluble in the composition; a melamine crosslinker; and an acrylic polyol; m, n, t, R.sup.1, R.sup.2 R.sup.4, R.sup.5, X and Y being defined in the text.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: June 27, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Basil V. Gregorovich, Isidor Hazan, Lech Wilczek
  • (Fluorovinyl ether)-grafted high-surface-area polyolefins and preparation thereof
    Patent number: 6080820
    Abstract: High-surface-area polyolefins grafted with certain fluoroalkylvinylether sulfonate or carboxylate monomers, and their method of preparation, are disclosed. Such materials are usefuli as catalysts and as membranes in electrochemical cells.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: June 27, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Edward G. Howard, Jr.
  • Holographic reflector for liquid crystal display
    Patent number: 6081354
    Abstract: A reflective liquid crystal display contains, a holographic reflector that provides either a white or more neutral background color to the display when viewed with ambient white light. The holographic reflector comprises a holographic recording film layer that includes at least first and second pixel volumes containing holographic mirrors and, preferably, third pixel volumes containing holographic mirrors.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: June 27, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: William John Gambogi, Jr., Torence John Trout
  • Manufacture of 3,3',5,5'-tetramethyl-2,2'-biphenol
    Patent number: 6077979
    Abstract: Coupling in aqueous medium of 2,4-dimethylphenol by persulfate anion or hydrogen peroxide in the presence of iron or iron compounds gives good yields of relatively pure 3,3',5,5'-tetramethyl-2,2'-biphenol.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: June 20, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Weiming Qiu
  • Azeotropes of chlorofluoroethanes of the formula CF.sub.3 CC1.sub.2+x ub . F.s1-x with HF and manufacturing processes therewith
    Patent number: 6077819
    Abstract: A process is disclosed for recovering HF from a product mixture comprising HF and at least one compound having the formula CF.sub.3 CCl.sub.2+x F.sub.1-x (where x is 0 or 1). The process includes the steps of distilling the product mixture to remove all products which have a lower boiling point than the lowest boiling azeotrope containing HF and said at least one compound; and distilling said azeotrope to recover HF as an azeotropic composition containing HF and said at least one compound. Also disclosed are azeotrope and azeotrope-like compositions which consist essentially of hydrogen fluoride in combination with from about 10 to 27 mole percent CCl.sub.3 CF.sub.3 or from about 35 to 56 mole percent CCl.sub.2 FCF.sub.3.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: June 20, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Barry A. Mahler, Ralph N. Miller, V. N. Mallikarjuna Rao
  • Binary viral expression system in plants
    Patent number: 6077992
    Abstract: This invention relates to a regulated binary plant viral expression system. It is comprised of two chromosomally-integrated components. One component is a proreplicon, which contains cis-acting viral sequences required for replication and a contains a target gene. The other component is a chimeric trans-acting replication gene comprising a regulated promoter operably-linked to the coding region for a viral replication protein. The proreplicon lacks the replication gene essential for replicon replication, and thus cannot undergo autonomous episomal replication. However, regulated expression of the trans-acting replication protein in plant cells also containing the proreplicon will trigger the release of free replicon from the integrated proreplicon, result in its episomal replication in trans, and result in the expression of the target gene, if present, through gene amplification.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: June 20, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Narendra S. Yadav
  • Preparation of lactams from aliphatic .alpha..omega.-dinitriles
    Patent number: 6077955
    Abstract: A process for the preparation of five-membered or six-membered ring lactams from aliphatic .alpha.,.omega.-dinitriles has been developed. In the process an aliphatic .alpha.,.omega.-dinitrile is first converted to an ammonium salt of an .omega.-nitrilecarboxylic acid in aqueous solution using a catalyst having an aliphatic nitrilase (EC 3.5.5.7) activity, or a combination of nitrile hydratase (EC 4.2.1.84) and amidase (EC 3.5.1.4) activities. The ammonium salt of the .omega.-nitrilecarboxylic acid is then converted directly to the corresponding lactam by hydrogenation in aqueous solution, without isolation of the intermediate .omega.-nitrilecarboxylic acid or .omega.-aminocarboxylic acid. When the aliphatic .alpha.,.omega.-dinitrile is also unsymmetrically substituted at the .alpha.-carbon atom, the nitrilase produces the .omega.-nitrilecarboxylic acid ammonium salt resulting from hydrolysis of the .omega.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: June 20, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Di Cosimo, Robert Donald Fallon, John Edward Gavagan, Frank Edward Herkes
  • Thermally expanded multiple core fiber
    Patent number: 6078716
    Abstract: An optical fiber having a thermally expanded multiple core section. One such multiple core section may be fabricated by fusing together non-etched multiple fiber claddings resulting in the multiple cores having expanded mode fields that are positioned in close proximity to each other in a common cladding, without signal coupling between the cores. The close proximity of the cores having expanded mode fields may allow for tighter alignment of light waves propagated from one core to other cores.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: June 20, 2000
    Assignee: E-TEK Dynamics, Inc.
    Inventors: Yong Huang, Kok Wai Chang
  • Showerhead
    Patent number: 6076743
    Abstract: The present invention provides an improved showerhead that can select the type of water steam by a single hand. A movable flapper is mounted in the showerhead, and a button connected to the flapper is pivotally mounted on the outside of the shell of the showerhead. A first outlet is defined on one surface of a water-separating plate and connects with a slant hole of a spacing block, a second outlet is defined on one surface of the water-separating plate and connects with a plurality of holes on the plate. Therefore, the water stream can be force to exit from the first or the second hole by rotating the flapper so that the water stream will exit through the slant hole in the spacing block or the plural holes in the water-separating plate.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: June 20, 2000
    Assignee: Tai E International Patent and Law Office
    Inventor: Chen-Yueh Fan
  • Low cost fiber optic circulator
    Patent number: 6075596
    Abstract: Improved optical devices, systems, and methods for selectively directing optical signals generally based on a Mach-Zehnder interferometer. Through accurate control of the phase relationship, the Mach-Zehnder interferometer allows optical signals to either be cumulatively combined so as to enhance the transmitted signal strength, or destructively combined so as to effectively prevent transmission from an optical signal port. This phase relationship can be controlled using a nonreciprocal device having a pair of retarder plates disposed along one of the two legs of the Mach-Zehnder interferometer so as to provide an optical isolator or circulator.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: June 13, 2000
    Assignee: E-Tek Dynamics, Inc.
    Inventors: Jing-Jong Pan, Feng Que Zhou
  • Cheese wedge shaped stress relief device
    Patent number: D427260
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: June 27, 2000
    Assignee: Richard E. Jackson
    Inventor: Paula Burr