Patents Assigned to I
  • Patent number: 4874817
    Abstract: Mixtures of imidized acrylic polymers and polyamides are described which have good flexural modulus properties.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: October 17, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: Harold K. Inskip, Marion G. Waggoner
  • Patent number: 4872344
    Abstract: A method of nondestructive quality control of carbon articles includes the steps of determining the rate of propagation of excited acoustic vibrations in each carbon article (3) of a group of carbon articles and in a specimen cut out from at least one carbon article (3). Then there are selected the carbon articles (3) with the lowest and highest determined rates of propagation of the acoustic vibrations, and "n" specimens are cut out from them longitudinally of the specimens, and "m" specimens are cut out from them across their longitudinal axes.
    Type: Grant
    Filed: November 4, 1987
    Date of Patent: October 10, 1989
    Assignee: Vsesojuzny Nauchno-Issledovatelsky I Proektny Institut Aljuminievoi, Magnievoi I Elektrodnoi
    Inventors: Anatoly F. Grebenkin, Boris A. Glagovsky, Igor B. Moskovenko, Ijudmila P. Lasukova
  • Patent number: 4873137
    Abstract: A composite structure comprising at least one core layer comprising polyethylene terephthalate and at least one outer layer on each side of the core layer, comprising polyethylene terephthalate and about 10 to about 60 percent glass flake, based on the weight of the outer layer, provides thermoformed articles with good high temperature stiffness and good surface properties.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: October 10, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Edward J. Deyrup
  • Patent number: 4873327
    Abstract: Compounds of the general formula ##STR1## in which each of A and B independently represents a halogen atom or an alkyl group; m is 0 or 1; Q represents a group of general formula ##STR2## in which R is as defined, or Q represents a group of general formula --CR.sup.2 R.sup.3 R.sup.4 in which R.sup.2, R.sup.3 and R.sup.4 are as defined; together with processes for the preparation of such compounds, pesticidal compositions containing them and their pesticidal use, and certain novel intermediates.
    Type: Grant
    Filed: March 8, 1988
    Date of Patent: October 10, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Martin Anderson, Anthony G. Brinnand
  • Patent number: 4872408
    Abstract: An improved plastic film cartridge for flowable explosives is provided. The cartridge comprises a recessed or indented end configuration which recess can be enlarged to provide a locating and retaining pocket for a blasting cap without any penetration of the cartridge film wall. The recess is maintained by means of an internal, elastic cord or strip attached between the sealed ends of the cartridge.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: October 10, 1989
    Assignee: C-I-L Inc.
    Inventor: Horst F. Marz
  • Patent number: 4873285
    Abstract: Hydroxy functional polyester graft copolymers are provided. The copolymer is crosslinkable by hydroxy-reactive crosslinking agent and, in particular, is suitable for use in thermosetting coating compositions adapted to form a flexible cured coating over a variety of substrates, such as metal and plastic. The copolymer has a number average molecular weight between about 1,300 and about 15,000, has a hydroxyl number between about 30 and about 300, and is the reaction product of carbon-carbon double bond-reactive monoethylenically unsaturated monomer with hydroxy functional carbon-carbon double bond-bearing branched polyester macromer.
    Type: Grant
    Filed: August 11, 1988
    Date of Patent: October 10, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: Rose A. Ryntz
  • Patent number: 4873355
    Abstract: A process for regioselectively preparing phosphorylated cyclitols, in particular phosphorylated inositols such as myo-inositol 1,4,5-tris(phosphate) and myo-inositol 1,3,4,5-tetrakis(phosphate). Novel cyclitols produced by means of this process are also described.
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: October 10, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Frank W. Hobbs, James L. Meek
  • Patent number: 4873298
    Abstract: Hydroxy functional polysiloxane graft copolymers are provided. The copolymer is crosslinkable by hydroxy-reactive crosslinking agent and, in particular, is suitable for use in thermosetting coating compositions adapted to form a flexible cured coating over a variety of substrates, such as metal and plastic. The copolymer has a number average molecular weight between about 1300 and about 15,000, has a hydroxyl number between about 30 and about 300, and is the reaction product of carbon-carbon double bond-reactive monoethylenically unsaturated monomer with hydroxy functional carbon-carbon double bond-bearing branched polysiloxane macromer.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: October 10, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Rose A. Ryntz
  • Patent number: 4872848
    Abstract: Cover for a multipoint connector which comprises a block-shaped multipoint connector body. In said body contacts are provided in spaces. Said contacts are accessible from outside via apertures opening out in a lateral surface of the body. The cover comprises an upper part and four lateral parts extending virtually perpendicularly to it. Those surfaces of the lateral parts of the cover which face the apertures of the multipoint connector body are provided with knobs which lie opposite the apertures when the cover has been placed on and rest with their outer surface against the edge of the respective apertures.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: October 10, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Bob Mouissie
  • Patent number: 4873021
    Abstract: An azeotrope or azeotrope-like composition of 1,1,2-trichloro-1,2,2-trifluoroethane (FC-113) and 1,2-dichloro-1,1-difluoroethane (FC-132b), the azeotrope being useful in solvent cleaning applications.
    Type: Grant
    Filed: December 30, 1986
    Date of Patent: October 10, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Robert A. Gorski, Bernhardt J. Eiseman, Jr., Donovan E. Kvalnes
  • Patent number: 4873381
    Abstract: Process for the manufacture of 1,1,1,2-tetrafluoroethane by the vapor phase hydrodehalogenation of 1,1,1,2-tetrafluorochloroethane in the presence of a catalyst consisting essentially of palladium on an aluminum fluoride or fluorinated alumina support.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: October 10, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Carl S. Kellner, V. N. Mallikarjuna Rao
  • Patent number: 4873674
    Abstract: A bronze alloy composition for glass making molds that has excellent corrosion resistance and resistance to pitting, the composition comprising copper, aluminum, nickel, iron, manganese, and a critical amount of silicon to provide the resistance to pitting.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: October 10, 1989
    Assignee: O-I Brockway Glass, Inc.
    Inventor: Thomas W. McCausland
  • Patent number: 4870813
    Abstract: A ply-twisted crimped continuous filament yarn having at least 40 twist reversals per meter and particularly suited for freize style carpets and the process for making the yarn is disclosed.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: October 3, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas L. Nelson
  • Patent number: 4871027
    Abstract: A vibratory plow including a cutter assembly which slices the ground covering and breaks the sod ahead of the cable-laying plow blade. The plow assembly includes a blade holder that is pivotally mounted to a vibrator frame. A mounting member attaches the cutting blade of the cutter assembly to the blade holder. The cutting blade is polygonal in shape and includes a plurality of mounting holes located in polygonal patterns. The mounting member includes a complementary set of mounting holes also arranged in a polygonal pattern. The present construction permits the cutting blade to be moved to a plurality of cutting positions rather than replacing the cutter after a cutting edge is worn.
    Type: Grant
    Filed: July 7, 1988
    Date of Patent: October 3, 1989
    Assignee: J. I. Case Company
    Inventors: Edgar K. Lindstrom, Marvin L. Morris
  • Patent number: 4871847
    Abstract: This invention relates to 2-[[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]aminosulfonyl]-4-(difluorom ethoxy)benzoic acid, ethyl ester, agriculturally suitable compositions thereof and methods of its use.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: October 3, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Craig L. Hillemann
  • Patent number: 4871320
    Abstract: A pin holder for a separable electronic plug connection wherein a number of resilient lips are formed on the holder. The lips are provided at their free ends with an inwardly protruding hook-shaped part. The pin holder has a pin carrier located therein. The pin carrier has outwardly, directed protruding parts formed thereon which, in the assembled state, engage behind the hook shaped parts which have been provided with obliquely running contact surfaces. At least one shoulder inside the holder preferably forms stop means. The pin holder is further provided with openings in an intermediate wall through which pins can extend.
    Type: Grant
    Filed: October 6, 1988
    Date of Patent: October 3, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Bob Mouissie
  • Patent number: 4871379
    Abstract: Shell-less hollow fiber gas permeators are disclosed wherein the hollow fibers are arranged in a bundle of paallel fibers embedded in a tube sheet at both ends. The tube sheets are fitted with caps to provide a pressure chamber which have ports for fluid communication. The end caps and tube sheets are mounted on a central rod to hold them rigidly in position. A plurality of the permeators are arranged in an array within an enclosure with ends in a common plane and the ends are in fluid communication with each other. The enclosure is provided with a vent and in a preferred aspect air is drawn over the permeators.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: October 3, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: Donald W. Edwards
  • Patent number: 4871448
    Abstract: A mechanical flotation machine comprises a flotation cell, a circulating pipe vertically installed therein, an axial impeller mounted in the lower portion of the pipe and a guide device secured to the lower end of the pipe. The guide device has an annular gap through which pulp flow generated by the impeller returns from the cell to the pipe. Vanes are installed in the annular gap to create, above the impeller, pulp flow rotating opposite to the rotation of the impeller.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: October 3, 1989
    Assignee: Gosudarstvenny Proektno-Konstruktorsky I Experimentalny Institut Po Obogatitelnomu Oborudovaniju
    Inventors: Valentin I. Dobryakov, Galina V. Zhevzhik, Valery A. Seballo, Evgeny V. Zhukov, Altar Z. Ententeev, Vyacheslav N. Struzhkov, Alexandr S. Gorbachev
  • Patent number: 4871818
    Abstract: A polyester-based spandex filament or film is provided. The filaments when used swim-wear fabrics provide the fabrics with increased resistance to mildew-induced degradation. The filaments are formed from a spandex derived substantially from a poly(2,2-dimethyl-1,3-propylene 1,12-dodecanedioate) glycol having no more than 15 milliequivalents of glycol acidity per kilogram of glycol, which glycol is capped with an organic diisocyanate and then chain-extended with an aliphatic diamine.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: October 3, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: Gary A. Lodoen
  • Patent number: H688
    Abstract: An improved process for surface modification of polyethylene terephthalate film is provided, involving corona discharge treatment of the film in an atmosphere of nitrogen containing up to about 350 ppm oxygen, and optionally a small amount of acetone vapor. Films so treated exhibit improved surface properties.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: October 3, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Warren S. Sobataka, William R. Wolfe, Jr.