Patents Assigned to E
  • Epoxy graft acrylic water-based primer surfaces
    Patent number: 4564648
    Abstract: Dispersion of an epoxy ester graft acrylic in water with a total of no more than 5% of organic volatiles and amines. These dispersions can be used in primer compositions for metal substrates having a minimum of organic solvent emissions and which can crosslink at temperatures from 110.degree.-200.degree. C., giving a good balance of hardness, flexibility, humidity, corrosion resistance and anti-chipping properties.
    Type: Grant
    Filed: September 21, 1984
    Date of Patent: January 14, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Jozef T. Huybrechts, Victor R. Vleminckx
  • Fermentation process for production of carboxylic acids
    Patent number: 4564594
    Abstract: An improved fermentation process for producing carboxylic acids, especially fumaric acid, is disclosed. The improvement comprises growing fungi of genus Rhizopus in the presence of an effective amount of at least one additive selected from the group consisting of fatty acid esters having fatty acid residues of 12 to 24 carbons, and triglyceride mixtures.
    Type: Grant
    Filed: June 30, 1983
    Date of Patent: January 14, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Israel Goldberg, Barry Stieglitz
  • Agricultural sulfonamides
    Patent number: 4564384
    Abstract: N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)-aminocarbonyl]-2-methoxycarbonylbenzenesul fonamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenze nesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: August 15, 1983
    Date of Patent: January 14, 1986
    Assignee: E. I. Du Pont de Nemours And Company
    Inventor: George Levitt
  • Fluorine-containing polymer compositions and their preparation
    Patent number: 4564561
    Abstract: Mixtures of (1) a polymer of at least one polyfluoroalkyl acrylate or methacrylate and (2) a copolymer of (a) at least one polyfluoroalkyl acrylate or methacrylate, (b) at least one 3-chloro- (or 3-bromo-) 2-hydroxypropyl acrylate or methacrylate, (c) at least one alkyl acrylate or methacrylate and (d) at least one polyoxyethylene acrylate or methacrylate. Mixtures are prepared by first polymerizing (1) and then (2) (a)-(d). Mixtures are useful as oil- and water-repellents, particularly for rainwear.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: January 14, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Albert L. Lore, Stuart Raynolds
  • Hydropneumatic massage bath
    Patent number: 4563782
    Abstract: A hydropneumatic massage bath includes a bath tub having high side walls and a bottom and at least one pressurized-water line that terminates in a water jet nozzle. An air supply line opens into a chamber surrounding the water jet nozzle. Such chamber has an outlet orifice for a jet of water and pressurized air entering the interior of the bath tub structure is provided for pulsating the jet of water/air mixture that discharges into the interior of the bath tub. To achieve a pleasant and variable massaging effect, as well as to reduce the susceptibility of the system to contaminants and compressive stress, an interrupt mechanism is arranged in the air supply line upstream of the chamber to fully or partially close the air supply at a desired pulsation frequency, thereby controlling the flow of incoming air into the chamber.
    Type: Grant
    Filed: December 21, 1983
    Date of Patent: January 14, 1986
    Assignee: B. E. M. Wientjes B.V.
    Inventor: Okko K. Dijkhuizen
  • Bis(aminoneopentyl) aromatics
    Patent number: 4564705
    Abstract: Aromatic-aliphatic diamines of the formula ##STR1## in which Ar is an arylene or substituted arylene are useful in preparing thermally stable, rigid, polyamides, polyureas and polyurethanes having a repeating unit of the formula ##STR2## in which Ar is arylene or substituted arylene, X is --NH-- or --O--, n is 0 or 1, and R is a divalent organic radical.
    Type: Grant
    Filed: May 21, 1981
    Date of Patent: January 14, 1986
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: August H. Frazer, John F. Harris, Jr.
  • IDC Latching terminal
    Patent number: 4564254
    Abstract: A terminal having first and second contact ends, one being an IDC, with a body portion separating the two contacts ends and a pair of latches supported by an L-shaped member extending perpendicularly from the body portion. The terminal latches act to hold two halves of a connector assembly together.
    Type: Grant
    Filed: June 6, 1983
    Date of Patent: January 14, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Wilhelmus B. T. van Alst
  • Method of generating plasma in a plasma-arc torch and an arrangement for effecting same
    Patent number: 4564740
    Abstract: The proposed method relates to the ionization of plasma-generating gas in a ilot arc before being supplied to the electrode region, thus generating charges in this electrode region, the charges promoting dispersion of an arc spot. For this purpose, an electrode assembly is provided within the plasma-arc torch, which electrode assembly comprises a hollow tungsten electrode and a solid electrode of the same metal, the solid electrode being radially spaced from the hollow electrode. Both electrodes are put in an electric power circuit, whereby an arc is initiated between the electrodes when switching on the electric circuit, plasma being generated in the arc, which plasma serves to start the main arc and provides for dispersion of the arc spot over the surface of the hollow electrode. This decreases the current density in the arc spots and, hence, minimizes electrode erosion.
    Type: Grant
    Filed: December 30, 1983
    Date of Patent: January 14, 1986
    Assignee: Institut Elektrosvarki Imeni E. O. Patona Akademii Nauk Ukrainskoi SSR
    Inventors: Boris E. Paton, Gary A. Melnik, Jury V. Latash, Oleg S. Zabarilo, Vasily A. Tkalich, Sergei E. Gedzun, Ljudmila G. Odintsova, Gavriil D. Agarkov, Vladislav V. Tetjukhin, Nikolai A. Tulin, Gennady G. Vedernikov, Nikolai P. Pozdeev, Valery D. Azbukin, Georgy N. Okorokov, Nikolai V. Letnikov
  • Tertiary perfluoroalkoxides as surfactants in PTFE dispersion polymerization
    Patent number: 4564661
    Abstract: An improvement is disclosed in a process for conducting PTFE dispersion polymerization, comprising use of tertiary perfluoroalkoxy compounds as surfactants.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: January 14, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Aleksander Beresniewicz
  • Herbicidal sulfonamides
    Patent number: 4563211
    Abstract: Certain sulfonylurea compounds such as 2-[[[4-methoxy-6-(methylselenylmethyl)pyrimidin-2-yl]aminocarbonyl]aminosu lfonyl]benzoic acid, methyl ester and 2-[[[4-methoxy-6-(phenylthiomethyl)pyrimidin-2-yl]-aminocarbonyl]aminosulf onyl]benzoic acid, methyl ester provide herbicidal activity.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: January 7, 1986
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: Barry A. Wexler, William T. Zimmerman
  • Blood-loss measurement apparatus
    Patent number: 4562842
    Abstract: Apparatus for continuously monitoring the loss of blood suffered by a patient in the course of a surgical operation. The apparatus provides a means for sucking the combination of blood and irrigating solution gathered about the incision, and for sequentially measuring the volumes and densities of small samplings of the solution-and-blood mixture being drawn through the conduit leading from the incision area to the suction device. The apparatus relies on the difference between the respective densities of the blood and of the irrigating solution in order to calculate the exact volume of blood contained in each sampling. The blood loss is continuously accumulated and displayed on a visual read-out, so that a corresponding amount of blood can be transfused to the patient in order to maintain his blood pressure throughout the operation.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: January 7, 1986
    Assignee: Diane E. Morfeld
    Inventors: Diane E. Morfeld, Henri J. A. Charmasson
  • Strontium-rubidium infusion system
    Patent number: 4562829
    Abstract: The strontium-rubidium infusion system includes means for generating a solution containing rubidium-82, measuring the radioactivity in the solution, and infusing it into a patient in order to perform various studies on the patient's heart. The system includes a wash syringe which can be used by a physician to manually inject a bolus containing a large amount of radioactivity directly into a patient in order to perform first pass ventriculography studies.
    Type: Grant
    Filed: May 1, 1984
    Date of Patent: January 7, 1986
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Brian C. Bergner
  • System for measuring amplitude of noise-contaminated periodic signal
    Patent number: 4563637
    Abstract: In order to measure the amplitude of a periodic signal of known frequency which may be heavily contaminated by noise and whose phase is not known at the point of measurement, e.g. at an output end of an optical fiber, two samples are periodically taken in every cycle at instants spaced apart by a quarter-cycle. The two samples are accumulated over N cycles and the signs of the resulting algebraic sums are compared at every N.sup.th cycle to determine whether the sampling phases should be advanced or retarded within a cycle by a predetermined increment .DELTA. in order to let the first and the second sample of a pair respectively approach the peak and the zero crossing of a half-cycle of the signal wave at which point, with the noise more or less balanced out, the second sum is substantially zero while the first sum represents N times the actual signal amplitude.
    Type: Grant
    Filed: July 19, 1983
    Date of Patent: January 7, 1986
    Assignee: Cselt Centro Studi e Laboratori Telecomunicazioni S.p.A.
    Inventors: Marco De Bortoli, Adler Tofanelli, Luigi Varetto
  • Pigment toners with improved transparency
    Patent number: 4561899
    Abstract: Yellow crystal stable pigment of mono-azo type having an average particle size of 0.02 to 0.8 .mu.m, the pigment having on its surface a crystal growth inhibitor compound having substantially similar chemical structure as the pigment, being more soluble than the pigment in solvents used to disperse the pigment, the inhibitor compound not fitting within the crystal lattice of the pigment. The crystal growth of pigment dispersions due to Ostwald ripening can be prevented by adding a crystal growth inhibitor as noted above to the pigment dispersion. The pigments can be dispersed in an organic polymeric binder, e.g., cellulose acetate, to form yellow toners which are useful in toning photosensitive color proofing systems.
    Type: Grant
    Filed: November 21, 1984
    Date of Patent: December 31, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Howard Matrick
  • Control valve for vehicle power steering systems
    Patent number: 4561516
    Abstract: A hydraulic control valve for a power assisted steering system for a vehicle, of generally conventional construction, the essential features of the valve being a sleeve having a bore in the surface of which are longitudinal extending grooves separated by lands, and a valve core fitting closely within the bore of the sleeve so as to be rotatable in the sleeve and having a second set of longitudinal grooves also separated by lands, each groove of the sleeve lying opposite a land of the core.
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: December 31, 1985
    Assignee: Arthur E. Bishop
    Inventors: Arthur E. Bishop, John Baxter
  • Polyimide coating compositions from diesterified anhydride and aromatic diamine
    Patent number: 4562100
    Abstract: Composition for the application of planar polyimide coatings comprising an aprotic solvent solution of selected aromatic dianhydrides which have been at least 20% esterified with a volatile alcohol and an equivalent amount of selected aromatic diamine.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: December 31, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Michael Fryd, Burt T. Merriman, Jr.
  • Method of making loose fitting supplied air respiration hood
    Patent number: 4561162
    Abstract: A loose fitting respirator hood made of flaccid, non-stretchable, air impervious material with a curved optical lens panel interposed in the sidewall thereof. The method of making the hood is disclosed in which curvature is imparted to a relatively stiff lens panel by the flaccid material of the hood. Head engaging members are disclosed for supporting the hood on the head of the wearer. A neck engaging ruff is disclosed which is sealingly mounted about the interior of the hood and can define a hollow annulus with apetures through the sidewall thereof to provide for air distribution to the interior of the hood. A rigid collar member for interconnecting the hood with a suit is disclosed together with the provision of an air filter in communication with a tubular member sealed through the lens panel and extending into proximity with the mouth of the wearer to supply respirable air.
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: December 31, 1985
    Assignee: E. D. Bullard Company
    Inventors: Brock F. Brockway, Anthony L. Moretti, Anselmo P. Pellolio, Jimmie Rasmussen
  • Oligomers of perfluoro(2,2-dimethyl-1,3-dioxole) and their fluorination products
    Patent number: 4560778
    Abstract: Perfluoro(2,2-dimethyl-1,3-dioxole) forms oligomers on standing in the presence of an ether. The preferred ethers are aliphatic and cycloaliphatic, especially tetrahydrofuran. Free radical generators, especially peroxydicarbonates, may be added to the reaction medium. The oligomers have a degree of polymerization of about 2-8. They are useful as lubricants, hydraulic fluids, heat transfer agents, and plasticizers, and as intermediates to oligomeric acid fluorides and acids, which acids are useful surfactants.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: December 24, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Edward N. Squire
  • Tea rose named Jelrafloki
    Patent number: PP5635
    Abstract: A new and distinct variety of rose plant of the hybrid tea class particularly distinguished by its bright red double flowers of medium size having a vermilion red color on the inside and a turkish red color on the outside, borne on stems of average size from a plant having a vigorous growth habit with a particularly great aptitude for forcing and an excellent winter aptitude. The flowers of this plant are long lasting when cut and the petals drop off cleanly.
    Type: Grant
    Filed: May 15, 1984
    Date of Patent: January 14, 1986
    Assignee: E. G. Hill Co., Inc.
    Inventor: Robert G. Jelly
  • Rose plant named Jeldaniran
    Patent number: PP5636
    Abstract: A new and distinct variety of floribunda rose plant distinguished by its light pink double flowers of medium size which are borne on rigid and strong stems; the plant is well branched and produces from one to four flowers per stem; the flowers are beautifully shaped and are generally of a Venetian Pink color flushed with Neyron Pink; the flowers are long lasting as cut flowers, the petals of which drop off cleanly; and the multiflower florescence of this plant gives it a particular aptitude for forcing for the production of cut flowers.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: January 14, 1986
    Assignee: E. G. Hill Co., Inc.
    Inventor: Robert G. Jelly