Patents Assigned to I
  • Patent number: 4906567
    Abstract: Sandwich assays for detecting and identifying lipopolysaccharides of gram negative bacteria utilizing immobilized lipopolysaccharide binding proteins and labelled detection reagents are provided. The active supports are also useful in removing LPS from biomedical and cosmetic preparations.
    Type: Grant
    Filed: January 21, 1987
    Date of Patent: March 6, 1990
    Assignee: E. I. Dupont De Nemours and Company
    Inventor: Mark C. Connelly
  • Patent number: 4906661
    Abstract: Novel compounds of the general formula ##STR1## wherein R.sub.1 is lower alkyl, lower cycloalkyl, lower alkenyl, lower alkynyl, lower alkyl carboxymethyl, aryl carboxymethyl, aryl, or aralkyl; A is a direct bond, lower alkylene, or lower alkenylene; x is 1 or 2, provided that when x is greater than 1, different occurrences of the ##STR2## group may be the same or different; Ar is heterocyclic, unsubstituted aromatic or aromatic substituted with lower alkyl, lower alkenyl, lower alkynyl, lower alkoxy, halogen, acetamido, amino, nitro, lower alkylamino, hydroxy, lower hydroxyalkyl or cyano; W is alkylene containing from 1 to about 10 carbon atoms; and B is --NR.sub.2 COR.sub.3, --NR.sub.2 CONR.sub.3 R.sub.4, --NR.sub.2 SO.sub.2 R.sub.3, --NR.sub.2 SO.sub.2 NR.sub.3 R.sub.4, or --NR.sub.2 COOR.sub.5, wherein R.sub.2, R.sub.3, R.sub.4 and R.sub.5 may be the same or different and may be hydrogen, alkyl, alkoxyalkyl, alkoxyaryl, cycloalkyl, alkenyl, alkynyl, aryl, heteroaryl, or aralkyl, except that R.sub.3 and R.
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul W. Erhardt, William L. Matier
  • Patent number: 4906282
    Abstract: Herbicidal sulfonamides having the general formula ##STR1## wherein J, W, R and A are more particularly described herein, such compounds and agricultural compositions containing them being useful as preemergent or postemergent herbicides or both, or as plant growth regulants, including the manner of their use.
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Morris P. Rorer
  • Patent number: 4906406
    Abstract: The invention is directed to a thick film thermistor composition consisting of finely divided particles of (a) a ruthenium-based pyrochlore, and (b) a short borosilicate glass or glass mixture, both dispersed in (c) an organic medium.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Jacob Hormadaly
  • Patent number: 4906288
    Abstract: Certain N-[(pyridyl or pyrimidyl)aminocarbonyl]arylsulfonamides, such as the compound methyl 2-[[N-(3-cyano-4,6-dimethylpyridin-2-yl)aminocarbonyl]aminosulfonyl]benzoa te, possess herbicidal activity.
    Type: Grant
    Filed: November 4, 1987
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Caleb W. Holyoke, Jr., Chi-Ping Tseng, William T. Zimmerman
  • Patent number: 4906783
    Abstract: Preparation of bis(hexamethylene)triamine from 6-aminohexanenitrile by catalytically preparing di(5-cyanopenyl)-amine, followed by hydrogenation using a nitride hydrogenation catalyst.
    Type: Grant
    Filed: February 25, 1988
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Robert A. Smiley
  • Patent number: 4906219
    Abstract: A cleaning system for a combine having a plurality of cleaning sieves which are operated to arrange grain in a thin veil or crop mat on the sieves. The cleaning system of the present invention includes an elongated transverse cleaning fan and an air plenum. The cleaning fan is rotatably driven about a fixed axis and includes a plurality of spaced apart blades peripherally disposed about the fan. The air plenum extends parallel to and along substantially the entire length of the fan for directing a forced flow of air from the fan rearwardly through the cleaning sieves. The air plenum includes upper and lower air directing baffles.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: March 6, 1990
    Assignee: J. I. Case Company
    Inventors: Robert A. Matousek, Jonathan E. Ricketts
  • Patent number: 4906636
    Abstract: 2-Substituted-1-naphthols are 5-lipoxygenase inhibitors which make them useful in the treatment of inflammation, obstructive lung disease and/or psoriasis. Useful 2-substituent groups are alkyls, alkenyls, alkynyls, cycloalkyls, cycloalkenyls, the groups CH.sub.2 --C.tbd.C--(CH.sub.2).sub.m R.sup.5 and CH.dbd.CH--(CH.sub.2).sub.n R.sup.5 (where m is 1-4, n is 0-3 and R.sup.5 includes phenyl, COOR.sup.9, where R.sup.9 is H or alkyl or 1-4 carbons, AR.sup.6 (where A is a methylene chain and R.sup.6 is a variety of groups including Cl, Br, I, CHO, CN, COOR.sup.9, NH.sub.2, SC(NH)NH.sub.2, phenyl, P(O)(OR.sup.9).sub.2, etc.), and CHR.sup.7 R.sup.21 (where R.sup.7 is a variety of aromatic and heterocyclic groups and R.sup.21 is H, optionally substituted phenyl and a variety of heterocyclic groups).
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Douglas G. Batt
  • Patent number: 4906729
    Abstract: A segmented thermoplastic copolyetherester having soft segments formed from a long chain polyalkyleneether glycol containing 80 to 97 mole percent of copolymerized tetrahydrofuran and 3 to 20 mole percent of a copolymerized cyclic alkylene oxide, preferably copolymerized 3-methyltetrahydrofuran, provides fibers and films with an improved combination of high tenacity, high unload power, high melting temperatures and low set.
    Type: Grant
    Filed: August 5, 1988
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Robin N. Greene, George R. Goodley, Charles King
  • Patent number: 4907167
    Abstract: An integrated system for process control in which a process supervisor procedure defines parameters for one or more controller systems (or control procedures). The supervisor procedure changes control parameters only in discrete changes, and the decision to act is sufficiently constrained that every change must be a significant change. Every change is logged (or otherwise reported out to human experts). Since every change is significant, the history of changes will provide a meaningful record which can be reviewed by human experts.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Richard D. Skeirik
  • Patent number: 4906939
    Abstract: Test fixtures, each being adapted to receive a capacitor, are connected through a relay network to a time variable high voltage source. Predetermined relays are energized in a predetermined sequence to connect a given capacitor to the source. A high voltage signal having a predetermined waveform is applied to the capacitor associated with an energized relay. When the current through the given capacitor exceeds a threshold, the voltage value then being applied to the capacitor determines the breakdown voltage of the capacitor.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul J. Berrigan, Michael J. Brennan, Jr.
  • Patent number: 4906677
    Abstract: A coating composition useful for a finish for automobiles and trucks in which the film forming binder contains reactive binder components of about(a) 25-90% by weight, based on the weight of the binder, of an acrylic polymer having at least two reactive anhydride groups composed of polymerized monomers of an ethylenically unsaturated anhydride and polymerized monomers from the group consisting of alkyl methacrylate, alkyl acrylate and any mixtures thereof, wherein the alkyl groups have 1-8 carbon atoms and the polymer has a weight average molecular weight of about 2,000-50,000;(b) 5-50% by weight, based on the weight of the binder, of a glycidyl component having at least two reactive glycidyl groups; and(c) 0.1-7% by weight, based on the weight of the binder, of a phosphonium catalyst or a blend of a phosphonium catalyst and a tertiary amine catalyst which may or may not contain hydroxyl groups.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours & Company
    Inventors: Robert Barsotti, Lester S. Cohen
  • Patent number: 4906520
    Abstract: A fabric, useful as a primary carpet backing, woven in both the warp and weft directions from filmy elements in the form of longitudinally-oriented, splittable ribbons formed from a blend of a major amount of polyester and a minor amount of a polyolefin. The ribbons split longitudinally when punctured by a tufting needle, thus providing for a more secure grip on the tufted carpet yarn than that given by conventional polyester backings. The use of polyester as a principal component overcomes certain drawbacks of polypropylene backings. Alternative processes for making these fabrics, each involving a heat-treating step at a temperature of at least 150.degree. F. (66.degree. C.) for a sufficient period of time to render the ribbons splittable, are also disclosed.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Vijayendra Kumar
  • Patent number: 4905790
    Abstract: The invention provides a pressure-fluctuation and noise suppressor having low flow resistance and high effectiveness. It is especially useful as a suppressor for an oil-injection inlet system of a positive-displacement air compressor. It has a cylinderical housing separated into ante- and main chambers by a partition. A tubular suppressing element is fixed through the partition eccentrically of the axis of the housing. The inlet of the suppressing element is in the form of a nozzle in the ante-chamber that widens away from the partition. In the main chamber, the wall of the suppressing element is perforated and the end of the suppressing element in the main chamber is closed by a conical member. An outlet tube is situated on a side wall of the housing in a plane perpendicular to the axis of the housing on an axis transecting the axes of the chambers and the suppressing element. An inlet extends into the ante-chamber diagonally from the nozzle of the suppressing element.
    Type: Grant
    Filed: November 29, 1988
    Date of Patent: March 6, 1990
    Assignee: Zaklady Budowy Maszyn I Apparatury
    Inventor: Marian Luszczycki
  • Patent number: 4905812
    Abstract: A fluid conduit delivers hydraulic cooling fluid to a mechanism including a clutch assembly which releasably joins two members rotatably mounted on a shaft. A linearly positionable clutch actuator controls operation of the clutch assembly. To avoid flooding of the clutch area with cooling fluid, a mechanism is provided for metering fluid flow delivered to the clutch area as a function of clutch operation. The mechanism includes a sleeve coaxially mounted on the shaft for metering the fluid flow exhausted from the fluid conduit in response to movement of the clutch actuator.
    Type: Grant
    Filed: January 26, 1989
    Date of Patent: March 6, 1990
    Assignee: J. I. Case Company
    Inventor: James L. Shepperd
  • Patent number: 4906596
    Abstract: A composition which is useful for bonding integrated circuits to inorganic dielectric substrates comprising an admixture of finely divided particles of a thermally conductive metal or metal-containing compound, non-aqueously milled amorphous glass frit and fatty acid-based surfactant dispersed, in a solution of primary organic solvent selected from ethylene glycol monobutyl ether acetate, dimethyl adipate and mixtures thereof and optionally minor amounts of certain secondary solvents and an acrylic polymer which is free of polar functional groups.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventors: Sara T. Joslin, Christine M. Rosell, Jerome D. Smith
  • Patent number: 4906278
    Abstract: This invention relates to certain heterocyclic sulfonylurea herbicidal compounds, agriculturally suitable compositions thereof and a method of their use.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Barry A. Wexler
  • Patent number: 4906472
    Abstract: A rodenticide composition of pelletized rodent toxic plant materials such as a Euphorbia lathyrus and methods of rodent control employing pelletized Euphorbia lathyrus.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: March 6, 1990
    Assignee: John I. Haas, Inc.
    Inventors: Thomas Gasseling, Lana Landis
  • Patent number: 4904928
    Abstract: Measurement apparatus and method utilizing microwave energy. A symmetric microwave cavity is excited to oscillate in at least two identical resonant modes having substantially the same resonant frequencies but different field orientations relative to each other. A sample to be measured is caused to interact with the identical resonant modes and the difference in the frequencies of oscillation of the modes is determined in order to measure a property of the sample.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: February 27, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Richard W. Lewis
  • Patent number: 4904726
    Abstract: Dispersion-process-produced, non-melt-processible, particulate, core-shell, tetrafluoroethylene copolymer comprising recurring units of tetrafluoroethylene and modifying recurring units of at least one ethylenically unsaturated comonomer that is copolymerizable with the tetrafluoroethylene, the number of recurring units of comonomer in the shell being sufficient to enable the copolymer to compound uniformly with an elastomer or plastic without forming visible agglomerates, and blends thereof with elastomeric and plastic resins.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: February 27, 1990
    Assignee: E. I. DuPont DeNemours and Company
    Inventors: Richard A. Morgan, Charles W. Stewart