Patents Assigned to E
  • Patent number: 4857246
    Abstract: Aluminum nitride fibers or films are made by carbothermal nitridation of precursor fibers or films which contain a source of alumina and a source of carbon. Improved articles are obtained by providing a stoichiometric excess of carbon, by stabilizing the precursor prior to carbonization and nitridation, by removing excess carbon after nitridation and introducing a sintering aid to promote densification of the final structure.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: August 15, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John D. Bolt
  • Patent number: 4856853
    Abstract: A drive mechanism comprises an endless belt wrapped around a drive wheel. The drive wheel includes flat facets formed on its outer surface which are arranged to become superimposed relative to plate-like shoes mounted on the belt to impart a positive drive to the belt.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: August 15, 1989
    Assignees: Salah E. A. Bayoumi, Abbas F. Souka
    Inventor: Salah E. A. Bayoumi
  • Patent number: 4856147
    Abstract: A coating of a viscous lubricant applied prior to stretch-breaking permits forming slivers of stretch-broken carbon fibers. When an anti-static ingredient is added to the viscous lubricant cohesive slivers of stretch-broken glass fibers can be formed. Composites of matrix resin reinforced with these slivers exhibit high strength, tensile stiffness, and good formability.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: August 15, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas E. Armiger, David H. Edison, Herbert G. Lauterbach, James R. Layton, Richard K. Okine
  • Patent number: 4857552
    Abstract: An injectable, aqueous pharmaceutical composition for the treatment of cardiac conditions comprising an effective amount of methyl 3-[4-(2-hydroxy-3-isopropylamino)propoxy]phenylpropionate hydrochloride (esmolol) for treating such a cardiac condition, said composition comprising about 1 mg to 250 mg of esmolol per milliliter of said injectable pharmaceutical composition; 0.01 to 0.02M buffer; said composition having a pH range of 4.5 to 5.5, the esmolol degrading in aqueous solution to produce 3-[4-(3-propionic acid)phenoxy]-1-isopropylamino-2-propanol hydrochloride, said 3-[4-(3-propionic acid)-phenoxyl]-1-isopropylamino-2-propanol hydrochloride having a pK in the pH range of said composition to thereby act as a secondary buffer to increase the buffer capacity and minimize the change in pH as degradation occurs, whereby the stability of esmolol in an aqueous composition is enhanced.
    Type: Grant
    Filed: June 8, 1988
    Date of Patent: August 15, 1989
    Assignee: E. I. du Pont de Nemours and Co.
    Inventors: Leonard S. Rosenberg, Cheryl Black, Earl R. Speicher, Dietmar Wagenknecht
  • Patent number: 4857630
    Abstract: Highly-branched, functionalized, wholly aromatic poly(arylenes) are prepared by the polymerization of AB.sub.n -type aromatic monomers.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: August 15, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Young H. Kim
  • Patent number: 4854737
    Abstract: A bag 10 for containing liquids is formed by welding together two plastic sheets around their peripheries and includes a neck portion 11 for connection to an outlet. An outlet tube 13 is partially inserted into the neck portion leaving a part of the tube with an upstanding seal member 17 outside the neck portion. A sleeve 18 is passed over the neck portion and the sleeve is shrunk into place, urging the neck portion 11 into tight engagement with the outlet tube 13 and effecting a seal between the sleeve 18 and the seal member 17 on the outlet tube 13.
    Type: Grant
    Filed: December 4, 1987
    Date of Patent: August 8, 1989
    Assignee: E. R. Squibb and Sons, Inc.
    Inventors: Peter L. Steer, Graham E. Steer
  • Patent number: 4855466
    Abstract: Disclosed are compounds having the formula ##STR1## wherein Prot is a hydroxyl protecting group. The compounds are useful as intermediates in the preparation of compounds of the formula ##STR2## which in turn are useful as antiviral agents.
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: August 8, 1989
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Robert Zahler, Glenn A. Jacobs
  • Patent number: 4854229
    Abstract: A screen printer is provided with a pivotally mounted substrate support plate or screen leveling members, each of which is operable to dispose a portion of the screen forwardly the wiper applicator into parallel relationship with and into close proximity to the surface of a substrate as a wiper applicator moves across the screen.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: August 8, 1989
    Assignee: E. I. DuPont de Nemours and Company
    Inventor: Eustathios Vassiliou
  • Patent number: 4855301
    Abstract: Cardiovascular activity is exhibited by compounds having the formula ##STR1## and pharmaceutically acceptable salts thereof wherein X is oxygen or sulfur;R is hydrogen, alkyl, cycloalkyl, aryl, or arylalkyl and R.sub.1 is hydrogen, alkyl, cycloalkyl, aryl, heterocyclo, ##STR2## or halo substituted alkyl, or R and R.sub.1 taken together with the nitrogen atom to which they are attached are 1-pyrrolidinyl, 1-piperidinyl, 1-azepinyl, 4-morpholinyl, 4-thiamorpholinyl, 1-piperazinyl, 4-alkyl-1-piperazinyl, 4-arylalkyl-1-piperazinyl, 4-diarylalkyl-1-piperazinyl or 1-pyrrolidinyl, 1-piperidinyl, or 1-azeipinyl substituted with alkyl, alkoxy, alkylthio, halo, trifluoromethyl or hydroxy;R.sub.2 is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, ##STR3## or halo substituted alkyl; R.sub.3 is hydrogen, alkyl, cycloalkyl, aryl, heterocyclo, ##STR4## or halo substituted alkyl; R.sub.4 is aryl or heterocyclo;R.sub.5 and R.sub.6 are each independently hydrogen, alkyl, --(CH.sub.2).sub.q --aryl or --(CH.sub.2).sub.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: August 8, 1989
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Karnail Atwal, George C. Rovnyak
  • Patent number: 4855178
    Abstract: A multilayer chemical barrier fabric is made up of a base sheet of nonwoven polypropylene laminated to a multilayer film sheet having a film of ethylene vinyl alcohol sandwiched between films of nylon with a surface film of linear low-density polyethylene. Fabrics having this structure show resistance to breakthrough within 8 hours for 13 of 15 chemicals listed on the ASTM F1001 chemical test battery and shorter breakthrough times for the other two.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: August 8, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John D. Langley
  • Patent number: 4854552
    Abstract: Apparatus for recovery of silver from spent, waste acidic silver halide photographic processing fluid, e.g., fixer solution, comprising passing the fluid through finely divided iron e.g., steel wool, contained in a vessel in the presence of a metal salt of copper or cadmium, e.g., copper(II)sulfate, copper chloride dihydrate, cadmium sulfate, etc. The ratio of iron to metal salt is 25 to 1 to 4 to 1.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: August 8, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: James E. Williams
  • Patent number: 4855315
    Abstract: Zofenopril, and pharmaceutically acceptable salts thereof, can be used for the treatment of rheumatoid arthritis.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: August 8, 1989
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Richard G. Devlin
  • Patent number: 4854081
    Abstract: The proposed device comprises a treatment unit (30) substantially made up of a feed guide (6) for the board and one or more rotating brushes (5) having their axes of rotation perpendicular to the board; this unit is followed by a flip-over assembly (31) and then by a second treatment unit (30) identical to the first. The treatment liquid reaches the center of each brush (5) through a duct. The brush assembly moves transversely; in addition each brush can have an orbital movement. The flip-over assembly (31) consists of a series of facing drive roller pairs (34) mounted on a carriage (32) that can be rotated at 180.degree. around an axis (33). These rollers (34) are such that they can rotate in two different directions.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: August 8, 1989
    Assignee: Pola E Massa S.N.C. Di Pola C. E M. & Massa G.
    Inventors: Carlo Pola, Giacinto Massa
  • Patent number: 4855474
    Abstract: The aldehyde RCHO is reacted with PCl.sub.3 and sulfur monochloride in the presence of chloride ion and under anhydrous conditions to give RCHClO(S)PCl.sub.2.
    Type: Grant
    Filed: March 18, 1987
    Date of Patent: August 8, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: Mohamed H. Fahmy, James R. Sanborn
  • Patent number: 4855695
    Abstract: Apparatus for automatic tuning of microwave energy in a de-emulsifier system usng a wave guide applicator with impedance matching element wherein microwave energy incident on and reflected from the applicator element is continually monitored to derive an indication of voltage standing wave ratio for input to a computer that controls a servo control motor to position a phase shifter thereby to maintain an optimum voltage standing wave ratio and, therefore, maximum efficiency of emulsion irradiation.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: August 8, 1989
    Assignee: E. I. du Pont de Nemours & Company
    Inventor: Nikola Samardzija
  • Patent number: 4855131
    Abstract: The present invention relates to a preparation for the treatment of skin or scalp affections, with an exclusively plant basis, obtained by infusion in vinegar of Geum, Lavandula, Mentha, Allium, and Salvia, preferably with the addition of other plant substances having a calmative or aroma-giving action; the preparation has shown itself to be outstandingly efficacious in impeding certain conditions which promote loss of hair.
    Type: Grant
    Filed: June 8, 1988
    Date of Patent: August 8, 1989
    Assignee: IRIS S.a.s. di Salvioli Michele e C.
    Inventor: Pasini Iris
  • Patent number: 4855359
    Abstract: A thermosetting coating composition useful as a primer for metal automobile and truck bodies having excellent chip resistance which contains a binder, a liquid carrier for the binder and pigments; wherein the binder contains(1) a hydroxyl terminated copolymer of styrene/allyl alcohol polymer chain extended with caprolactone;(2) a hydroxy functional polyester urethane and(3) an alkylated melamine resin or blocked poly-isocyanate crosslinking agent.
    Type: Grant
    Filed: January 20, 1988
    Date of Patent: August 8, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Rose A. Ryntz, Karen A. Surcina, Kenneth R. Kurple
  • Patent number: 4855667
    Abstract: A parallel plate dielectric analyzer is disclosed including: a distance sensor for accurately measuring the varying distance between the electrodes, such as a linear voltage differential transformer (LVDT), and a motor responsive to the distance sensor for positioning the electrodes; a force transducer for measuring the applied force on the sample and where the motor responsive to the distance sensor is also responsive to the force transducer to give a desired force by varying the electrode spacing; disposable electrodes made using thick film technology composed of a ceramic substrate with a conductor adhered to its surface; and a temperature sensor built into one of the electrodes such as a platinum ring adhered to the surface of one of the electrodes and means to measure the resistance across the platinum ring.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: August 8, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Kendall B. Hendrick, John R. Reader, Jr.
  • Patent number: 4854962
    Abstract: This invention relates to novel sulfonylurea herbicidal compounds, agriculturally suitable compositions thereof and a method-of-use of said compounds and compositions as general preemergence and/or postemergence herbicides or their use as plant growth regulants.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: August 8, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: David L. Douglass, Marcus P. Moon
  • Patent number: 4855266
    Abstract: A dielectric composition is claimed consisting essentially of a donor- and acceptor-doped BaTiO.sub.3 having an intergranular phase of flux containing both glass-forming and glass-modifying ions. that can be co-fired in a low oxygen-containing atmosphere for the manufacture of multilayer capacitors having copper internal electrodes.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: August 8, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Ian Burn