Patents Assigned to I
  • Patent number: 4780388
    Abstract: Electrostatic liquid developer having improved charging characteristics consisting essentially of(A) nonpolar liquid having a Kauri-butanol value of less than 30, present in a major amount,(B) thermoplastic resin particles having an average by area particle size of less than 10 .mu.m,(C) nonpolar liquid soluble ionic compound, and(D) at least one organic polyamine compound having at least 2 amino groups present on adjacent carbon atoms.Optionally, a colorant, e.g., a pigment; metallic soap can be present. The electrostatic liquid developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: October 25, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: James R. Larson
  • Patent number: 4780235
    Abstract: A low toxicity paint remover composition containing C.sub.1 to C.sub.4 dialkyl esters of C.sub.4 to C.sub.6 aliphatic dibasic acid, an activator, a thickener, a surfactant and at least one other organic nonhalogen-containing solvent.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: October 25, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Harold L. Jackson
  • Patent number: 4780099
    Abstract: Polyamide fibers are made stain resistant by treating them with a sulfonated naphthol- or sulfonated phenol-formaldehyde condensation product. Applying the stain-resist compounds at pH values of between 1.5 and 2.5 renders them stable to yellowing upon exposure to agents in the environment such as NO.sub.2.
    Type: Grant
    Filed: August 26, 1986
    Date of Patent: October 25, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Imrich Greschler, Creighton P. Malone, Armand P. Zinnato
  • Patent number: 4780248
    Abstract: Thick film electronic compositions comprising finely divided particles of electrically functional material and a PbO-compatible inorganic binder dispersed in an organic medium in which 0.1 to 10.0% wt. lead nitrate is coated on the surface of at least one of the solide components.
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: October 25, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul C. Donohue, Vincent P. Siuta
  • Patent number: 4780389
    Abstract: Negative, liquid electrostatic developer consisting essentially of(A) nonpolar liquid having Kauri-butanol value less than 30, present in major amount,(B) thermoplastic resin particles having a colorant and an inorganic metal salt as defined dispersed therein and average particle size by area being less than 10 .mu.m, and(C) nonpolar liquid soluble ionic or zwitterionic compound which imparts a negative charge to the thermoplastic resin particles. Optionally additional adjuvants are present. The liquid electrostatic developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
    Type: Grant
    Filed: February 23, 1988
    Date of Patent: October 25, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Lyla M. El-Sayed
  • Patent number: 4779408
    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 4, 1987
    Date of Patent: October 25, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas L. Nelson
  • Patent number: 4779481
    Abstract: An adjustable two-pedal swing control apparatus for tractor backhoe booms and the like. The apparatus has a pivot shaft member pivotably mounted with respect to a tractor upright, a shaft-engaging structure on the pedal engaged with an end portion of the pivot shaft, such end portion and shaft-engaging structure being dimensioned and arranged to allow a degree of rotation of the pedal with respect to the pivot shaft, a pair of aligned projecting members from the pivot shaft and shaft-engaging structure, and a threaded adjustment therebetween to set the position of the rotational range of the pedal.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: October 25, 1988
    Assignee: J. I. Case Company
    Inventors: Ronald C. Natzke, Richard H. Logan
  • Patent number: 4778807
    Abstract: Described are compounds of the formula: ##STR1## wherein Y denotes dimethylamino, methylpropynylamino, pyrrolidino, piperidino, or morpholino; R.sub.1 and R.sub.2 independently of each other denote hydrogen or loweralkyl; and X denotes loweralkyl, loweralkoxy, or halo; and n is and integer from 1 to 3 inclusive, or pharmaceutically acceptable salts thereof.The compounds exhibit antiarrhythmic activity without unwanted sympathomimetic effects.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: October 18, 1988
    Assignee: E. I. Du Pont de Nemours & Company
    Inventors: David M. Stout, William L. Matier, Lawrence A. Black
  • Patent number: 4778395
    Abstract: A header apparatus for a flat IC pack having at least one conductive terminal includes a header housing which includes an IC pack chamber, an opening communicating with the IC pack chamber, the IC pack being inserted into and extracted from the opening, and a pair of actuation means, each of which includes drive member having a first surface formed inside the IC pack chamber of the header housing and a first rack, operation member which includes a second rack positioned to face the first rack of the drive means and an operation portion formed outside the IC pack chamber, and a pinion engaged with the first and second racks, wherein the first surface of the drive member is moved in an insertion direction of the IC pack by inserting the IC pack into the IC pack chamber, and pushes the IC pack inserted into the IC pack chamber in a direction opposite to the insertion direction of the IC pack by moving the operation portion of the operation means in the insertion direction of the IC pack.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: October 18, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Hiroshi Narita
  • Patent number: 4778856
    Abstract: A polymer composition comprising (a) 35-65 parts by weight polyvinyl chloride, (b) 10-55 parts by weight chlorinated polyethylene or chlorosulfonated polyethylene elastomer or mixtures thereof containing 24-40 weight percent chlorine, (c) 10-55 parts by weight of a chlorinated polyethylene or chlorosulfonated polyethylene elastomer or mixtures thereof containing 40-52 weight percent chlorine with the proviso that the chlorine level of the elastomers (b) and (c) differ by at least 5 weight percent, and (d) 1-30 parts by weight per 100 parts by weight of total chlorinated polymers (a), (b) and (c) of an ethylene terpolymer containing 48-74 weight percent ethylene, 20-40 weight percent vinyl acetate or alkyl acrylate wherein the alkyl group contains 1-10 carbon atoms, and 6-14 weight percent carbon monoxide. Such compositions are useful as pond liners, roofing membranes, wire and cable covering, and window profiles.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: October 18, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John C. Chen, Richard T. Chou
  • Patent number: 4778512
    Abstract: This invention relates to certain heterocyclic sulfonylurea herbicidal compounds, agriculturally suitable compositions thereof and a method of their use.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: October 18, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Barry A. Wexler
  • Patent number: 4778194
    Abstract: A multi-arm tractor hitch with an improved adjustable arm having a pair of threaded end members with slots therealong, a middle member engaged with the end members in turnbuckle fashion, a locking member movably, preferably pivotably, attached to the middle member and having tabs positioned to engage the slots of both ends members when the locking member is in a lock position, to firmly lock them and the middle against relative rotation without any connection beyond the middle member.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: October 18, 1988
    Assignee: J. I. Case Company
    Inventors: David C. Koch, Thomas B. Tuttle, Max A. Juengel
  • Patent number: 4778861
    Abstract: A hydroxy functional epoxy-polyester graft copolymer and solvent-based thermosetting coating composition comprising said copolymer and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer adapted for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy functional epoxy-polyester graft copolymer is the product of polymerization of certain lactone monomers in the presence of hydroxy functional epoxy ester resin precursor. The precursor resin is the reaction product of diepoxide with aliphatic diol and, subsequently, with acid component comprising primary hydroxy functional acid. The polymerization of the lactone monomers is carried out at a temperature between about 50.degree. C. and about 300.degree. C.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: October 18, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Andrew H. Dervan, Dennis J. Grebur, Panagiotis I. Kordomenos
  • Patent number: 4776878
    Abstract: N-(heterocyclicaminocarbonyl)pyridinesulfonamides; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: July 16, 1985
    Date of Patent: October 11, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Patent number: 4777022
    Abstract: Chemical vapor deposition apparatus has a quartz envelope supporting a resistance heater. A boron nitride pill box configured core supports resistance heater windings. The core has a base having a cylindrical upper portion defining a hollow chamber and an upper annular ring. A circular top includes an upper circular portion and lower circular portion mating with the base. The annular ring surface is in thermal contact with the upper circular portion to transfer heat from the annular ring to the circular top. A zirconia insulator cups the core, providing heat insulation, in conjunction with a heat shield coating in the quartz envelope interior. Arrays of quartz envelope heaters provide for mass production of semiconductors. A horizontal configuration includes a laminar flow head and disposed at an angle to the horizontal.
    Type: Grant
    Filed: August 28, 1984
    Date of Patent: October 11, 1988
    Assignee: Stephen I. Boldish
    Inventors: Steven I. Boldish, Joseph S. Ciofalo
  • Patent number: 4776806
    Abstract: A connector is formed as a molded body having a sub-assembly that includes a terminal board aligned transverse to the longitudinal axis of the cable and an attached receptacle strip that includes an array of pin-receiving receptacles. The receptacles are secured at one end to the terminal board which also includes printed circuit wiring traces to facilitate electrical connection between the receptacles and the wire conductors of a ribbon cable. A frame is provided within the molded body and includes a base having an elongated slot formed therein and upstanding tabs at the opposite ends. The sub-assembly is positioned relative the slot so that the receptacle strip and its pin receptacles are in substantial registration with the slot. The frame and the terminal strip, as well as the end portion of the ribbon cable, are maintained in their assembled relationship by the molded body. The tabs each includes apertures for engaging a connector removing tool.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: October 11, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John E. Adams
  • Patent number: 4775629
    Abstract: A cartridge is formed of two parts which form an outlet valve at the lower end. The valve is opened or closed by relative rotation of the parts.
    Type: Grant
    Filed: May 5, 1987
    Date of Patent: October 4, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ernest B. Kuhl, George R. Long, Juleen A. Mitchell, Richard S. Jenkins, Henry R. Wolfe, Jr., Gerard F. Malone
  • Patent number: 4775635
    Abstract: A system and method is disclosed for the rapid detection and (or) purification of analytes in a sample. The system makes use of a fluid receptacle containing a capture reagent and a manifold having two ports. A sample containing an analyte disposed within the fluid receptacle is subjected to a capture reagent and processed by inserting the open end of the receptacle in one port. Vacuum, gas, reagents, and wash fluids are then applied to the second port to effect rapid interaction between the capture reagent and analyte, efficient washing of the capture reagent and detection and/or collection of the analyte.The system and method provide a rapid safe, uncomplicated means of automating processes based on affinity complexation principles. Encompassed within this category of processes are immunoassays, nucleic acid hybridization tests and affinity separations.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: October 4, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Richard C. Ebersole, Jesse G. Forsythe, Jr., Frank T. Gelormini
  • Patent number: 4775715
    Abstract: Cationic polyvinyl alcohol is prepared by blending polyvinyl alcohol under high shear conditions, at 0.degree.-100.degree. C., with a small amount of water, a small excess of base, and a quaternizing agent containing a halohydrin radical and a quaternary ammonium group. The quaternization proceeds with acceptable conversions of about 35 to well over 50%. The quaternized polyvinyl alcohol has many applications, including use as a flocculating agent, as a stabilizing colloid, and in adhesive formulations.
    Type: Grant
    Filed: July 23, 1987
    Date of Patent: October 4, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Aleksander Beresniewicz, Thomas Hassall, Jr.
  • Patent number: 4775286
    Abstract: An improved swingable tractor-backhoe interconnection for a tractor-mounted backhoe having a pair of vertically-spaced articulation means along the axis forming an axially-aligned void space therebetween, a preferably free-floating center yoke in the void space with two vertical rows of openings securing hydraulic hoses in two adjacent rows, and a pair of side yokes on the tractor, one for each row of hoses, positioned on opposite sides of the center plane and spaced from the axis and center plane such that the two rows of hoses are divergent between the center and side yokes.
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: October 4, 1988
    Assignee: J. I. Case Company
    Inventors: Roy A. Gillette, Robert L. Houkom, Curtis R. Lyons